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  • jyamona@motiv's Avatar
    01-11-2017, 03:46 PM
    Hey guys, The time has finally come to share some details on my secret N54 project. It's been under development for many months now, and had no shortage of both hardware and software (mainly software :)) obstacles to overcome. That said, a major milestone was reached this week so it's time to let you all in! Coming soon to a stock DME near you: Yep, real Flex Fuel. It is a fully implemented flex fuel solution, running on the stock DME! Dial your car in on pump (91-93oct), then E85, set the blending / interpolation curve tables, and be on your way. The benefits here are never having to reflash when changing ethanol blends again (or even worry about mixing the correct blend). Go from straight 93oct to 100% E85 or E98 on the same flash :) This is up and running on a few IJE0S cars now and works flawlessly. There is still some more work to be done, and of course porting to the other ROM types will take a good bit of time. Some hardware details are in need of finalization as well. More to come on those items in the weeks to follow. Some overall highlights and features of this accomplishment: first DME integration with a 3rd party sensor first large scale rewrite and modification of DME logic direct logging of Ethanol Content % in MHD separate blending / interpolation per table grouping seamless blending between maps for any ethanol content I'd also like to give a big thanks to @Chris@CKI for his help in testing and flashing my countless revisions at all hours of the day, and also to @martial@mhd for assembly code and hex conversion help along the way! In case you haven't guessed, this will be a module available in MHD similar to M-Boost. A thread is worthless without pics, right? The log was taken after a fill-up to a higher E content, and you can see the AFR target rising as E% goes up. 2017 is just getting started, and will definitely be the year of the stock DME ;)
    79 replies | 2670 view(s)
  • Sticky's Avatar
    12-20-2016, 09:06 PM
    The BMW world for whatever reason attracts to it a lot of shady people and many tuners who overstate their ability. Not everyone on this list is shady but it is filled with tuners whose reputation does not match their ability. Let's start with number 5. 5. ESS-Tuning Oh, sure, people will point to ESS-Tuning 'records' on the E9X M3 platform. Are they a product of ability or simply volume bolstered by drag strip conditions on the east coast in the winter? The truth is ESS-Tuning does not have the ability to match their claims. For a bolt on option that works, they are great. When they move outside of that narrow sphere, bad things happen. Need evidence? MYSTERY SOLVED: WHAT HAPPENED TO THE ESS TUNING SUPERCHARGED RDSPORT STROKER M3? BLOWN MOTOR / S65 ENGINE FAILURE DIAGNOSIS ESS TUNING THREATENS BIMMERBOOST WITH LEGAL ACTION OVER REVEALING ISSUES WITH THE SUPERCHARGED RDSPORT STROKER MOTOR ESS-TUNING PROBLEMS WITH F82 M4 F80 M3 S55 TURBO KIT TUNING AND HARDWARE, FORUM CENSORSHIP, AND THE DANGERS OF BEING AN ESS GUINEA PIG AMS PERFORMANCE DROPS ESS-TUNING IN LIEU OF THEIR OWN TUNING SOLUTION FOR THEIR ALPHA 9 F10 M5 / F13 M6 S63TU TURBO UPGRADE PACKAGE ESS-TUNING ACCUSES EVOLVE OF USING ESS TUNES, POTENTIALLY DANGEROUS TUNING, AND BIMMERBOOST OF GENERATING PROPAGANDA FOR EVOLVE ESS-TUNING SERVICE AND ALPHA-N E60 M5 S85 V10 TUNING ISSUES - THIRD PARTY ACCOUNT OF SWITCH TO EVOLVE ALPHA-N S85 TUNING When ESS attempts to tread outside of a bolt on supercharger kit for the M3 (centrifugals being the EASIEST superchargers to tune) they usually fail. Especially when it comes to custom projects. When BimmerBoost highlighted this in some of the articles you see above, ESS threatened BimmerBoost with legal action. Nothing ever came of their threat because everything you see above is true. If a tuner is so insecure over their perception of being good maybe they really aren't as good as they want people to think? 4. G-Power G-Power at least deserves credit for attempting high performance builds. Out of all the tuners on this list, they build the strongest BMW's so props for that. The problem? Let's say you want a twin supercharged S85 V10 like the one pictured above. It will run you $40k+ for the supercharger kit before an engine build for their highest stage. Once you go to their SKIII system you are looking at $57k plus labor. You can buy an E60 M5 today for almost half that. Not to mention, bolt on a Vortech blower for a fraction of the price and have more power. Just look at their $25k Mono SKII system. G-Power is a tuner for people with too much money to care. They will build you a reasonably fast car but it will cost you more than the car is worth. They also never backup their claims with 1/4 mile runs or wheel output dynos. We did get a crank dyno for their recent claim of a 1001 horsepower twin supercharged S85 V10 system but it is not a raw graph. When they start showing what they are making at the wheels we will start taking them seriously. G-Power does hold the BMW top speed record. This is impressive although it is primarily a product of being able to use the autobahn to set it so nobody elsewhere in the world has challenged them. If you have more money than sense, feel free to check them out. Don't be surprised when you get smoked by a cheaper option though. 3. AC Schnitzer Another BMW tuner that made it's name in the days before forums and in the days before the turbo era. At one time, (think E36/E46) they built some very cool BMW's. These days they pretty much just do body kits although they have been setting some course records in Germany. Their 'tuning' amounts to re-branding springs and suspensions components as their own. They add in a rebranded piggyback for some more horsepower and then go run a lap on courses they have in their backyard for a record. It is not as if US tuners are going to fly a car to Germany to top it so they are safe. When it comes to powerful aftermarket BMW's they are nowhere to be found. No 1/4 mile records, no dyno records, no 1/2 mile records, and no acceleration records of any kind. They play it safe making big margins on body pieces people in Russia and the Middle East overpay for. They are overrated. 2. Hamann Hamann is basically like AC Schnitzer except without any records of any sort. Another company that used to do hardcore tuning such as stroker motors that is now reduced to selling wheels and body kits. Not that they care, they have the Hamann name and whore it out as much as they can. This name brand approach is popular overseas but when is the last time you saw someone in the United States drooling over a Hamann built car? If someone drools over Hamann anything, they suffer from mental retardation. They have no impressive engine tuning whatsoever. They are completely all show and no go. Just look at their M2 tuning program. Body pieces and teal wheels which will slow the car down. Wow, how impressive. You can literally outperform their vehicle with a stock M2 and a tune from basically any US tuner. These guys have been coasting on their name for decades. 1. Dinan It pains BimmerBoost to have Dinan as number one but it is exactly where Dinan should be. It is not that Dinan is bad or produces bad parts. It is just that they are overpriced and underperform. Just look at this: DINAN'S WEAK BMW TURBO ERA TUNING - COMPARING F85 X5M 1/4 MILE RESULTS WITH DINANTRONICS STAGE I S63TU PIGGYBACK TO ACM ECU FLASH TUNING WHY BOTHER WITH DINAN AGAIN? PRECISION TUNING PUSHES THE 2013 F01 ALPINA B7 N63TU OVER 600 HORSEPOWER AT THE WHEELS Yet another BMW switching from Dinan 'Dinantronics' to a proper ECU flash tune - F13 M6 Gran Coupe S63TU picks up huge gains with Eurocharged vs. Dinan tuning DINAN STAGE I DINANTRONICS F80/F82 M3/M4 S55 TUNE DYNOJET DYNO RESULTS - +~20 WHEEL HORSEPOWER In the BMW performance community, if you run Dinan, you're a joke. What's the point? To overpay for parts to be slower than those with cheaper parts? Dinan can not even flash tune modern BMW's. This is why Dinan suddenly embraced piggybacks after criticizing them. This led to Dinan responding to BimmerBoost's criticism of their public flip-flop. There are some who will point to Dinan in motorsport and sure, they do some great things there. However, street BMW's are not race cars. The BMW race cars have unlocked ECU's. Dinan does not have that same luxury with the street cars and it shows as the new TriCore ECU's proved too difficult for them. Also, what ever happened to that S63TU turbo upgrade promised from Dinan almost three years ago? Nothing happened. Dinan simply was not able to deliver and if it does come to market it will likely be a rebranded upgrade from another tuner much like their N55 turbo upgrade. Dinan is without question the most overrated tuner in the BMW aftermarket today. If you are one of those people saying, 'What about the warranty?' you are probably their target market. If you want a fast BMW, you simply don't choose Dinan.
    77 replies | 4243 view(s)
  • jyamona@motiv's Avatar
    01-11-2017, 04:10 PM
    The time has finally come to share some details on my secret N54 project. It's been under development for many months now, and had no shortage of both hardware and software (mainly software) obstacles to overcome. That said, a major milestone was reached this week so it's time to let you all in! Coming soon to a stock DME near you: Yep, real Flex Fuel. It is a fully implemented flex fuel solution, running on the stock DME! Dial your car in on pump (91-93oct), then E85, set the blending / interpolation curve tables, and be on your way. The benefits here are never having to reflash when changing ethanol blends again (or even worry about mixing the correct blend). Go from straight 93oct to 100% E85 or E98 on the same flash :) This is up and running on a few IJE0S cars now and works flawlessly. There is still some more work to be done, and of course porting to the other ROM types will take a good bit of time. Some hardware details are in need of finalization as well. More to come on those items in the weeks to follow. Some overall highlights and features of this accomplishment: first DME integration with a 3rd party sensor first large scale rewrite and modification of DME logic direct logging of Ethanol Content % in MHD separate blending / interpolation per table grouping seamless blending between maps for any ethanol content I'd also like to give a big thanks to @Chris@CKI for his help in testing and flashing my countless revisions at all hours of the day, and also to @martial@mhd for assembly code and hex conversion help along the way! In case you haven't guessed, this will be a module available in MHD similar to M-Boost. A thread is worthless without pics, right? The log was taken after a fill-up to a higher E content, and you can see the AFR target rising as E% goes up. 2017 is just getting started, and will definitely be the year of the stock DME ;)
    79 replies | 779 view(s)
  • Sticky's Avatar
    12-20-2016, 08:58 PM
    The BMW world for whatever reason attracts to it a lot of shady people and many tuners who overstate their ability. Not everyone on this list is shady but it is filled with tuners whose reputation does not match their ability. Let's start with number 5. 5. ESS-Tuning Oh, sure, people will point to ESS-Tuning 'records' on the E9X M3 platform. Are they a product of ability or simply volume bolstered by drag strip conditions on the east coast in the winter? The truth is ESS-Tuning does not have the ability to match their claims. For a bolt on option that works, they are great. When they move outside of that narrow sphere, bad things happen. Need evidence? MYSTERY SOLVED: WHAT HAPPENED TO THE ESS TUNING SUPERCHARGED RDSPORT STROKER M3? BLOWN MOTOR / S65 ENGINE FAILURE DIAGNOSIS ESS TUNING THREATENS BIMMERBOOST WITH LEGAL ACTION OVER REVEALING ISSUES WITH THE SUPERCHARGED RDSPORT STROKER MOTOR ESS-TUNING PROBLEMS WITH F82 M4 F80 M3 S55 TURBO KIT TUNING AND HARDWARE, FORUM CENSORSHIP, AND THE DANGERS OF BEING AN ESS GUINEA PIG AMS PERFORMANCE DROPS ESS-TUNING IN LIEU OF THEIR OWN TUNING SOLUTION FOR THEIR ALPHA 9 F10 M5 / F13 M6 S63TU TURBO UPGRADE PACKAGE ESS-TUNING ACCUSES EVOLVE OF USING ESS TUNES, POTENTIALLY DANGEROUS TUNING, AND BIMMERBOOST OF GENERATING PROPAGANDA FOR EVOLVE ESS-TUNING SERVICE AND ALPHA-N E60 M5 S85 V10 TUNING ISSUES - THIRD PARTY ACCOUNT OF SWITCH TO EVOLVE ALPHA-N S85 TUNING When ESS attempts to tread outside of a bolt on supercharger kit for the M3 (centrifugals being the EASIEST superchargers to tune) they usually fail. Especially when it comes to custom projects. When BimmerBoost highlighted this in some of the articles you see above, ESS threatened BimmerBoost with legal action. Nothing ever came of their threat because everything you see above is true. If a tuner is so insecure over their perception of being good maybe they really aren't as good as they want people to think? 4. G-Power G-Power at least deserves credit for attempting high performance builds. Out of all the tuners on this list, they build the strongest BMW's so props for that. The problem? Let's say you want a twin supercharged S85 V10 like the one pictured above. It will run you $40k+ for the supercharger kit before an engine build for their highest stage. Once you go to their SKIII system you are looking at $57k plus labor. You can buy an E60 M5 today for almost half that. Not to mention, bolt on a Vortech blower for a fraction of the price and have more power. Just look at their $25k Mono SKII system. G-Power is a tuner for people with too much money to care. They will build you a reasonably fast car but it will cost you more than the car is worth. They also never backup their claims with 1/4 mile runs or wheel output dynos. We did get a crank dyno for their recent claim of a 1001 horsepower twin supercharged S85 V10 system but it is not a raw graph. When they start showing what they are making at the wheels we will start taking them seriously. G-Power does hold the BMW top speed record. This is impressive although it is primarily a product of being able to use the autobahn to set it so nobody elsewhere in the world has challenged them. If you have more money than sense, feel free to check them out. Don't be surprised when you get smoked by a cheaper option though. 3. AC Schnitzer Another BMW tuner that made it's name in the days before forums and in the days before the turbo era. At one time, (think E36/E46) they built some very cool BMW's. These days they pretty much just do body kits although they have been setting some course records in Germany. Their 'tuning' amounts to re-branding springs and suspensions components as their own. They add in a rebranded piggyback for some more horsepower and then go run a lap on courses they have in their backyard for a record. It is not as if US tuners are going to fly a car to Germany to top it so they are safe. When it comes to powerful aftermarket BMW's they are nowhere to be found. No 1/4 mile records, no dyno records, no 1/2 mile records, and no acceleration records of any kind. They play it safe making big margins on body pieces people in Russia and the Middle East overpay for. They are overrated. 2. Hamann Hamann is basically like AC Schnitzer except without any records of any sort. Another company that used to do hardcore tuning such as stroker motors that is now reduced to selling wheels and body kits. Not that they care, they have the Hamann name and whore it out as much as they can. This name brand approach is popular overseas but when is the last time you saw someone in the United States drooling over a Hamann built car? If someone drools over Hamann anything, they suffer from mental retardation. They have no impressive engine tuning whatsoever. They are completely all show and no go. Just look at their M2 tuning program. Body pieces and teal wheels which will slow the car down. Wow, how impressive. You can literally outperform their vehicle with a stock M2 and a tune from basically any US tuner. These guys have been coasting on their name for decades. 1. Dinan It pains BimmerBoost to have Dinan as number one but it is exactly where Dinan should be. It is not that Dinan is bad or produces bad parts. It is just that they are overpriced and underperform. Just look at this: DINAN'S WEAK BMW TURBO ERA TUNING - COMPARING F85 X5M 1/4 MILE RESULTS WITH DINANTRONICS STAGE I S63TU PIGGYBACK TO ACM ECU FLASH TUNING WHY BOTHER WITH DINAN AGAIN? PRECISION TUNING PUSHES THE 2013 F01 ALPINA B7 N63TU OVER 600 HORSEPOWER AT THE WHEELS Yet another BMW switching from Dinan 'Dinantronics' to a proper ECU flash tune - F13 M6 Gran Coupe S63TU picks up huge gains with Eurocharged vs. Dinan tuning DINAN STAGE I DINANTRONICS F80/F82 M3/M4 S55 TUNE DYNOJET DYNO RESULTS - +~20 WHEEL HORSEPOWER In the BMW performance community, if you run Dinan, you're a joke. What's the point? To overpay for parts to be slower than those with cheaper parts? Dinan can not even flash tune modern BMW's. This is why Dinan suddenly embraced piggybacks after criticizing them. This led to Dinan responding to BimmerBoost's criticism of their public flip-flop. There are some who will point to Dinan in motorsport and sure, they do some great things there. However, street BMW's are not race cars. The BMW race cars have unlocked ECU's. Dinan does not have that same luxury with the street cars and it shows as the new TriCore ECU's proved too difficult for them. Also, what ever happened to that S63TU turbo upgrade promised from Dinan almost three years ago? Nothing happened. Dinan simply was not able to deliver and if it does come to market it will likely be a rebranded upgrade from another tuner much like their N55 turbo upgrade. Dinan is without question the most overrated tuner in the BMW aftermarket today. If you are one of those people saying, 'What about the warranty?' you are probably their target market. If you want a fast BMW, you simply don't choose Dinan.
    77 replies | 1404 view(s)
  • The Convert's Avatar
    12-20-2016, 12:41 AM
    My group at work is heavy into composite manufacturing for aerospace and I have a few of the other engineers excited about a little side project of making a manifold for the N54 and one for the S54 as well. Right now I am making the layup tool models, layup part models, and post machined models. The models are all expression driven, meaning I am using equations for all dimensions that are not constants or parameters that need to be input, such as peak torque rpm, valve area, displacement, etc. The models will update themselves automatically if I change an expression value or equation. So, MANY manifolds could be easily made from these models when finished. We're going to be 3d printing the part molds out of plastic. So, turnaround time will be fast and effective cost will be very low. We're also planning to do some sub scale tests on runner taper and velocity stack dimensions, as the smaller the inlets, the larger affect any design issues will have. So, it should help us down select pretty quickly with high confidence. So...my question for everyone is, who has good resources they can share for intake manifold design theory? Anyone have any good quality links and/or books they would recommend? Also, what do you guys think would look good? The plan is an aluminum head flange and TB flange, but all else is carbon. It will be forward facing with top mounted injector provisions.
    44 replies | 4727 view(s)
  • idratherbesurfing's Avatar
    12-19-2016, 07:58 PM
    Pure Turbo custom 62mm 1.00ar Fuel-it stage 3, fpr, pi Mhd/haltech Q16 fuel Vrsf 7in MFactory lsd Open downpipe lol Still working out kinks, no where near done so don't expect this to be final numbers. Not a fan of this haltech it's most likely coming out. The Turbo on the other hand is ridiculous, in a good way. In these videos it made 680whp. Then we went up a little to 25psi and it made 700. It was 2am and I didn't film that pull or computer. I'll have plenty of videos to come. I just wanted to take a few moments to post since someone told me everyone was waiting to hear
    37 replies | 4273 view(s)
  • Downforce92's Avatar
    12-31-2016, 04:18 PM
    Hey guys, I recently took my car to a Dyno and I was happy with the hp, however the torque was not enough. I made 426whp but only 291wtq. Does anyone know what could've caused this? I uploaded a picture but not sure if it worked, anyway, at about 4K rpms the torque takes almost a 90 degree drop while hp continues to increase. I am FBO, fuel it stage 2 fuel pump, e60, map 7. It was a dyno jet, and temp was 70F. So to state clearly, why did I make 500hp (crank) with stock torque? Sorry I don't have logs, jb4 cable doesn't work, I've tried several.
    39 replies | 3869 view(s)
  • Grand_hustle17's Avatar
    01-08-2017, 01:36 PM
    Hello, as the title says, I currently have JB4 and MHD backend with a trebilia custom tune. Im in the process of going with a single turbo setup and i gotta say im not the biggest fan in JB4 much anymore, not because i think its not a good unit, but on upgraded twins i wasnt much a fan of the inconsistency with misfires and would like to spend more time driving vs changing spark plugs and coil packs. So with that said what are some good alternatives for tuning. Cant say im high on cobb neither but it is an option i guess. I would love to have something with a mild pump gas tune for daily driving and a E85 map for whenever i decide to go to the track or whenever i meet up with others for those spirited competitions in mexico lol...
    41 replies | 3549 view(s)
  • Sticky's Avatar
    01-12-2017, 09:35 PM
    An interesting upgrade option for N54 fueling is Fuel-It!'s bucketless LPFP. They have designed a special pick up that allows for their bucketless design. There are advantages here as for one they eliminated the need to modify the factory bucket and they provide a large increase in flow. Fuel It! describes the premise best: There were concerns regarding fuel flow when almost empty but this video addresses those concerns: Now let's look at some dyno results on an E82 135i N54 paired with their Platinum Port Injection kit: That is a solid 600 wheel horsepower with Pure Stage 2's and the AFR is 11.9:1 on an E53 ethanol blend. Definitely something for those looking to upgrade their fuel system to look into.
    64 replies | 654 view(s)
  • Milan's Avatar
    01-09-2017, 07:27 PM
    So in my ~15 years of modding cars I have never posted a build thread. Like most of you US peeps, the weather here blows so I thought I would start a thread outlining my plan of attack to getting my car ready for TX2K this year. But first, let's take a step back... As some of you know, I most recently had a 2008 335xi that I single turbo'd. I did the Doc Race kit, experimented with full E85 and eventually settled on direct port meth as it was my DD and I needed to be able to road trip the car. Even though I loved the car, I hated being held up by AWD and the automatic and the itch to turn up the boost was always there. So in November I sold it and the car went to it's new owner. The new owner was an awesome guy and promised to keep the car in great shape as I did, I hope he is on here reading this! So now a couple weeks go by, I am kicking back and forth different ideas of what kind of car I want to get to replace my 335. I considered everything under $40k but the BMW kept calling my name. I thought about the E90 M3 (too slow), F30 335 (too slow), and ultimately decided to look for a cheap 07-08 335i in manual and RWD. I had to travel to Detroit for business and while I was stuck in the Detroit airport I decided to troll Seattle CL when I found my car. An 07 335i optioned all the way out like my old car, 126k but all maintenance records! I negotiated a deal with the seller, paypaled him $500 to hold the car and bought plane tickets for my and my GF to pick up the car that weekend. We spent the weekend with her family and 10 hours of driving later we were home. Before I even made it back to Idaho I was already ordering parts. But because of the holidays I was only home for a couple days before I had to take off for a two week vacation. I had my friend house sit and when I came home, these are the goodies that were waiting for me. Don't mind the hood in the picture, it's for my Z06...more on that later. Fast forward to last weekend. My GF and I were having dinner with my friend Jake and his GF. Jake owns a LS swapped 72 Chevelle that I tuned. While working on his car we became friends and during that time I introduced him to the awesomeness that is TX2K. Now I've been to TX2K 4 times but always with my Z06. My original plan was to get it ready for this year but the 1500 whp build is taking a little bit longer than I expected. Jake managed to secure us a 42' enclosed trailer in the mean time and during our conversation over dinner we decided fuck it, lets do what it takes to get down there. Now there isn't much I can do to speed up the build on the Z06, but having been to TX2K before, I knew I would be in a tough spot with the car anyway. At around 1000 whp, you are way faster than most of the scrubs that show up there and way slower than the GTR and Lambo crowd. This makes it really tough to find a good race. My second time at TX2K, back in 2011 I went with only 700 whp and I had the time of my life. I was racing all sorts of similar powered cars and met a lot of great people. Why not take the 335i, I said? And that's when the plan was born.. With about 70 days to go, it was time to put the plan into action. At this point I had a lot of the basic shit either in my house or on order: FMIC, wheels/tires, port injection, etc. The one thing missing was turbo. I kicked around a lot of ideas and reached out to a lot of vendors. First thing I did was email Doc Race. I explained my situation, asked if they could hook it up with another kit, etc. They apparently don't want anymore of my money and couldn't be bothered to email me back...thanks guys! Next up was JP Works. I know everyone on this forum hates him, but you can't deny that the price is right and his kits make power. Having been around as long as I have, I knew that to get one of his kits takes 2-3 months minimum so that idea was out. Next up was MMP. I really like Mauricio and really believe in his products. He has awesome communication but ultimately I decided that his Stage 3 offering was price too close to a single turbo kit once it's optioned out all the way and was limited in the amount of power it could make. So what about RB? He just dropped the prices on his turbos into a reasonable range, but not many people seem to be running his turbos anymore so I thought I would send him an email asking if the turbos were in stock, what kind of power they could support, etc. Rob, like Doc Race, also didn't want my money. I was ready to spend $4k+ and all he could write me was "Not in stock and have about a 10-15 day wait sorry."....cool story bro, no wonder no one is running your turbos anymore. Thought about VM, but the wait was too long. VTT was out of the question because I would rather burn my money than give it to Tony. Motiv would have been ideal but I'm not baller enough to afford their stuff. I briefly considered AD Engineering but when building my other 335 I remembered how shitty their customer service was so they were out too. Time for plan B. I hit the forums and started looking to see what kind of used kits were out there. Ideally I wanted a single turbo kit for big power, but beggars can't be choosers and this ain't Chipotle so my options were some Hexons, VTT Stage 2+, and finally a set of rebuilt hi-flow Pure Stage 2's popped up. None of these were ideal, as hybrids can only make high 600's on a good day, but I am in a time crunch and don't have unlimited funding so I picked up the Pures because they are an awesome company and I really believe in their products. So that's where I am at for now...the plan is to go with as close to 700 whp as I can get the turbos to support, hopefully meet some cool N54 peeps, and have fun! More to come....
    40 replies | 3272 view(s)
  • mj6234's Avatar
    01-04-2017, 08:16 PM
    mj6234 started a thread Sudden Very Rough Idle in N54
    Need some help diagnosing an issue. Went out to my car at lunch and car felt like it was missing, maybe like a coil was bad. Got it home and started swapping parts. Changed all the plugs and coils on bank 2. Still having very rough startup and not really driveable. Did walnut blast 3K ago, never swapped injectors think I have a mix of index 7 & 8. HPFP was done about 20K ago. Got the below codes currently 29D0 - misfire cyl 4 29D1 - misfire cyl 5 29CC - multiple cyl misfire 2E1C - firing cyl 5 Could an injector just go that quickly? Car ran 100% fine this morning.
    39 replies | 3243 view(s)
  • Sticky's Avatar
    01-05-2017, 12:11 PM
    Rod bearing wear issues in the 4.0 liter S65 V8 in the E9X M3 are well known. Rod bearings also wear prematurely on the S85 V10 on which the S65 V8 is based but do to the superior oiling system of the V10 the problem is not exacerbated as it is on the V8. Things vary based on use as well. A car that is tracked or supercharged will see more wear than a stock car used for commuting. The bottom line however is that owners should replace their rod bearings before it is too late so that they can avoid what is pictured below. @Michael@GermanAutoWerks shared pictures of a blown S65 V8 from an E92 M3: Unfortunately, BMW has a history of mistakes with M3 engines dating back to the E46 M3 S54 and all the way up to the current F80 M3 S55. Someone should hold BMW accountable for knowingly selling motors with defects.
    58 replies | 1070 view(s)
  • Michael@GermanAutoWerks's Avatar
    01-05-2017, 09:02 AM
    2011 m3 was brought to us for a engine noise. When we drained the oil metal was found in it. After pulling the oil pan we found as expected, spun rod bearings. Unfortunately the crankshaft had damage as well. Customer has decided to go the full rebuild route. Out the s65 comes! Have a few special pieces in mind for the new motor including a hardened crankshaft. While everyone else was out celebrating on NYE, we decided it would be fun to pull the motor.
    58 replies | 698 view(s)
  • Sticky's Avatar
    01-04-2017, 02:01 PM
    Talk about entering the M157 scene with a splash! Pure Turbos is not messing around. The proof is in the results right here on a W212 E63 AMG. This is a 4Matic all wheel drive car as it is the facelifted version. In the 26 to 27 psi range of boost output is 840 horsepower. This is with custom ECU dyno tuning from Precision Tuning. Precision did not push the turbos as far as they could to preserve the driveline. What would these turbos make when pushed with an upgraded transmission? Good question. Oh, and how about the pricing? $5995 plus core exchange. That is the best turbo upgrade value in the M157 world right now. As a reminder, before the turbo upgrade and with bolt ons this E63 ran 10.6 @ 133. That was at 670 all wheel horsepower. What will it do now? We can't wait to find out.
    46 replies | 1621 view(s)
  • 8900120d's Avatar
    12-20-2016, 04:59 AM
    Hi guys, I have an e92 m3 differential which I will be fitting to my 335i. However I'd like to change the seals and bearings before I put it on. Just wondering if anyone has done it before? Is it a specialist job, or can it be done without the need of special tools? I've got experience in engine work (diy fitted my hybrid turbos, inlets, downpipes etc) also have experience in suspension work (diy fitted the full rear m3 axle) I'm on the final stage now which is refreshing the differential :) Would appreciate some guidance Thanks
    27 replies | 3606 view(s)
  • Corrupted's Avatar
    12-30-2016, 01:54 PM
    I'd like to force the wastegates to operate conventionally (closed at all times until set boost). My thought process says to bypass the factory solenoids and run the vacuum pump directly to the wastegates, and then use an electronic boost controller to bleed vacuum. Thoughts? Sorry JB4/COBB fans, I'm not going that route.
    32 replies | 2726 view(s)
  • eric84405's Avatar
    12-21-2016, 06:17 PM
    I am conflicted on this as the AR downpipes are big bucks and the VRSF pipes look like you have to hack them up quite a bit to fit the 535xi. I had a PM to Tiago at VRSF cause it looks like they may be coming out with a 535xi specific pipe but have gotten no response. So, I was thinking intercooler. I dont think I will heatsoak too much right now as it is normally anywhere from 10 to 35 degrees F this time of year in Utah but in the summer we can get pretty hot. Opinions are appreciated. If the consensus is intercooler, which one for a 535? Thanks!
    24 replies | 2929 view(s)
  • AWSAWS's Avatar
    01-02-2017, 02:03 AM
    Is this the best n54 dyno you've ever seen? Seen N54s dyno that spit fire and make more noise but this car really looks like it goes! Sounds really aggressive!
    28 replies | 2720 view(s)
  • martymil's Avatar
    12-25-2016, 10:49 PM
    So I came across this a few times where on a stock turbo or where the aftermarket turbo snout hasn't been extended or ribbed. The silicone inlet slips off the factory type snout as its to short and has no where to bite on to properly because the silicone pipe rubs on the firewall it tends to come off from the back and forth rocking action of the motor I'm not going to name the vendor here as I want to know if it has happened to anyone else and what brand they have and how many times it has happened. I do have a solution that costs around 5 dollars to make but I want to know how many people have this persistent problem.
    20 replies | 3098 view(s)
  • BMWJunkie's Avatar
    12-25-2016, 01:24 PM
    BMWJunkie started a thread M4 DCT Flywheel in 335is in N54
    Its the giving season right? I encourage everyone to share information instead of keeping good info secret, this helps progress the platform. I could of very well kept this to myself and gone faster and no one would of been the wiser. Happy Holidays from BMWJunkie! The Idea: I have been working on David Rooney's 135i DCT swap for awhile now. I am very familiar with the look of and weight of the n54 DCT flywheel. While reading about a clutch upgrade on a f80/82 I noticed a picture of the flywheel in the m3/m4 and it looked much different and much lighter. I was curious and used realoem to inspect weights of the two. The difference was huge. The m4 part rang in at 8.1kg and the stock 335is unit was a whopping 12.92kg! I verified they both used the same bolts, same bolt pattern, thread pitch, and same clutch pack. On paper everything looked great. Located a used m4 dct flywheel from a junk yard and the project was on. The Swap: When the m4 unit arrived I could immediately tell it was a much lighter unit. I verified the splines on the clutch pack were the same and test fitted it onto the crank of a n54 I happened to have in the garage. Everything looked as expected. I pulled the trans out of my 335is and removed the DCT flywheel. The side by side shot says it all. The 335is flywheel is a typical bmw dual mass flywheel and the m4 unit while still listed as a dual mass did not have any noticeable play in it or even look like it was dual mass. It could be dampened internally but I could not be certain. As you can see in the photos the weight difference huge 10.5lbs between the two. The flywheel bolted right up. I used new flywheel bolts and torqued to the m4 specifications. The two cars share the same bolts. The Results: I took before and after free revving videos at roughly the same operating temp and the difference is noticeable. The car felt quicker after the upgrade, no more or less than expected. Worth the 300 dollars to me. I am hoping it will help my launches at the drag strip because I've been leaving too hard with the stock flywheel and 5k launch. I am also hoping this is easier on the rest of my driveline.
    20 replies | 3086 view(s)
  • Chris@VargasTurboTech's Avatar
    01-02-2017, 04:13 PM
    2016 2016 was a great year for us at VTT. Not only did we release the GC family of fully-cast and modular turbochargers for the N54, but we saw growth in literally every single aspect of all VPG subgroups (VTT, VPP, VHP) by continuing to innovate. Bragging a little here, VPG was the first on the N54 platform with... -billet compressor wheels as an option across the entire lineup -upgraded thrusts as an option across the entire lineup -N54 OEM rebuilds -N54 stage 1 turbos -N54 stage 2 using factory style bearing housings -Clipped turbine wheels in an N54 application -9 blade turbine wheels in an N54 application -19T/20T compressor wheels in an N54 application -Stock location silicone upgraded inlets -Silicone hot side charge pipes Continuing the trend of innovation, in 2016 we… -Released fully cast and modular high flowing twin turbo upgrades (our best dyno was 785 whp!) -Developed and released a 750+ whp capable DI only fuel system and controller Performance wise? In 2016 we... -made 777 whp DI only (GC's, double barrel shotgun and controller) -trapped 169.9 mph in the 1/2 mile (6MT, full weight) -ran 11.0 @ 136 mph in the 1/4 I(6MT full weight) -competed at 4 organized runway events in Oregon, CA, and AZ -visited the (local) 1/4 mile track more times than we could count -gave away 2 sets of GC's, multiple inlets, and plenty of VTT swag 2017 2017 is looking to be a promising year for us and we're excited to get rolling on it. Our top secret plan is pretty simple; focus on our strengths, keep innovating, and push the development on the platform far and hard as we can. On our menu will be: -continued development and testing of the BB solution for twins -continued development and testing of GC+ turbochargers -Pushing the NIZPRO auto transmission as hard as we can and unleashing it at the track -come on now you don't expect us to tell you everything do you? We have a few more projects going on behind the scenes -More giveaways -More articles -More VPG contests (including challenges!) All that wonderful news but how does this effect you, right now, today? Price drop. New 2017 Prices: -GC pricing is now $3999 -GC lite pricing is now $2999 -Single Barrel shotgun pricing is now $799 -Double Barrel shotgun pricing is now $999 (website is in the process of being updated -expect it to reflect the new prices shortly) http://performance.vargasturbo.com/bmw-products/n54/
    22 replies | 2472 view(s)
  • dgerding14's Avatar
    12-21-2016, 07:18 PM
    I am having issues with my car, feeling a dead zone in the RPM band from about 2500 rpm to 4500 rpm. Seems as though it might be fueling related. Possibly O2 sensors... any help is appreciated!
    20 replies | 2724 view(s)
  • kurt danger's Avatar
    12-27-2016, 10:06 PM
    Switching from jb4 to mhd. I currently have catless vrsf down pipes with the bms dp fix. My question is does mhd automatically delete the emissions code on its own? Or what needs to be done to not throw a code?
    20 replies | 2293 view(s)
  • 7plagues's Avatar
    12-27-2016, 01:53 PM
    Some of you may remember my prior post on my 335is clutch swap experience. Anyway that was done at roughly 45k. We'll I just hit 74k and just swapped out my 335is clutch because of the following symptoms. Audible rattle when car not in gear and clutch not pressed. Rattle would go away when clutch was depressed. Sticky clutch after high rpm runs or heavy braking. I came to the conclusion it was the throwout bearing and decided it was time to do the swap again, I went 335is clutch again since I never had any slippage occur. Anyway the swap has been documented enough. This time around I did the following parts. MFactory SMFW (really nice part) 335is clutch brass pivot pin lots of new bolts Brake fluid rbf600 redline mt90 fluid Rear main seal 335is motor mounts oil filter housing gasket and oil cooler gasket (was leaking like a champ) New coolant block hose fitting since I BROKE THE CHEAP PLASTIC SH!T. (http://www.ebay.com/itm/BMW-335i-11537541992-OEM-WATER-HOSE-FITTING-REPLACEMENT-ALUMINUM-6061/182218057115?_trksid=p3693.c100102.m2452&_trkparms=ao%3D1%26asc%3D20140212121249%26meid%3D47e1b78c0d254d669cbbe9f78a2f1c56%26pid%3D100102%26) Quite the part list but I got it done working a few hours at a time over the course of a week. I have my own lift so this makes the process quite easy :dance:. The aluminum hose fitting was dope and fit perfectly. When i removed the original plastic fitting from the block to get the oil cooler off I gently pulled it out and quickly found half of it was left attached to the block. *FYI https://www.ecstuning.com/b-genuine-bmw-parts/coolant-outlet-hose/11537541992/ is the part that broke. If you want metal save yourself a headache and downtime and replace either this part or order the aluminum fix. Back to not breaking things. With the tranny out I saw the clutch and pressure plate looked perfectly fine. The clutch looked brand new honestly. So that's good to know. FBO + inlets, trapping 150mph in 1/2mile, many miles of abuse, no slipping, 450rwhp plus, many 1/4 mile runs and it looks great after 30k miles. Pressure plate and forks on it look good as well. The throwout bearing had a different rattle than the new one and just felt worn out. Leave it to BMW to make plastic parts. So I ripped out all the flywheel and clutch parts and did the rear main. Thanks to Vargas and folks giving info on how to change this out. It's super easy and worth the 5min it takes. Self-tapping screw into old rear main, pull out with hammer push new one in evenly and flush, use Gasket maker of choice and do a thin covering around block to gasket(2x insurance) Mine had no leaks prior but now I'm sure it wont any time soon. Buttoned it all up and the car runs perfectly fine with the clutch issues resolved. While I had the transmission out I did take the time to look at the shifter slop that I hate. I decided to shim the space between where the clip holds the selector rod on, So I took a half moon shaped shim and pushed it into the space between the clip that holds the selector rod and the shift rod. Below is the clip i'm talking about but I still have the stock rod. Anyway it cleaned up some slop and didn't cost me anything. Notice the black dot, thats where I pushed the shim in, this is not a 335i image just an example. I can take pics of the old flywheel and clutch if anyone is interested. But like I said the clutch looked brand new. mfactory SMFW high res new rear main seal high res old rear main high res trans bellhousing brass pivot pin high res new clutch and pressure plate high res
    20 replies | 2350 view(s)
  • Chris@VargasTurboTech's Avatar
    12-18-2016, 03:54 PM
    We didn't get what we were hoping for but that said... once more NFZ is always a great venue that's well run by good people. Definitely a good time every time. We started off battling normal nickel and dime type things... misfire here, adjust fuel there, tire pressure/etc. Our trap speeds were creeping up when we had an unfortunate 4th-5th shift that actually was 4th-3rd. Ouch. ECU caught something like 8300 rpm on the log before Tony got the clutch back in. We *think* the motor is okay but it was enough to jump timing and end our day. My Notes: Run 1: (decided to leave high boost map on car but drive gently to shake down) 10:00 am 50*F DA 466' 777 whp map (DI only) Serious traction issues in 4th gear (track was very dusty) and a misfire in 5th gear 151 trap Run 2: 11:00 am 53*F DA 605' 740 whp map (DI only) Car wouldn't go into 2nd gear... Tony crossed the cones at 20 mph. 165 trap Traction was a little better, plus we had warmed up the tires more. Run 3: 11:47 am 55*F DA 711' 740 whp map (DI only) 166.17 mph Car fell on its face into 4th... the huge bog from 3rd to 4th gear (later discussed this often happening when you rev above 7k in 3rd before shifting) Run 4: 12:38 pm 57*F 740 whp map (DI turned on to see if it helped the 3-4 bog) 167.41 mph Car still fell on its face between 3rd and 4th. This is when we realized that shifting it above 7k going from 3-4 can result in a lengthy bog. Duly noted. Run 5: Raced Steve at Fuel-it!, at the top of 4th gear money shifted into third. Game over. Alas, **** happens. On the whole the DI only worked well; we can't blame and of our issues on that. It's not much of a silver lining because our testing to date showed us it would work well, so it was more of an expectation on our part. Still, it's never bad to see it doing what it should on the track. We were hoping for traps pretty close to 175, but obviously those goals got cut short on the final run. We'll have to wait until next time. Good meeting some of you guys out there -always a pleasure.
    15 replies | 2626 view(s)
  • Sticky's Avatar
    01-09-2017, 01:31 PM
    This E90 335i belongs to BimmerBoost member @idratherbesurfing. He has a top mount single turbo N54 conversion and is running a Pure Turbos 62mm turbocharger. He is still fine tuning the setup but it is already good for 680 horsepower to the wheels. At 30+ psi he believes he will crack 800 wheel horsepower: This is the mod list: Top mount twin scroll manifold Pure Turbo 62mm 1.0ar w/ 2 tial 38mm wastegates Ade motor mounts Vrsf chargepipe, Turbosmart bov, Vrsf 7inch fmic Fuel-it port injection, fpr kit, stage 3 lpfp MFactory lsd Mhd/Haltech stack Bms, Rb, and mishimoto catch can stack Tuning is a flash and piggyback stack with Precision Tuning doing the ECU flash work on their dyno. Take a look at the dyno vid below which is well worth your time.
    28 replies | 1073 view(s)
  • psychosinmylobby's Avatar
    01-07-2017, 10:33 PM
    Happy New Year all! After reading all these PS pump pulley horror stories where the broken pulley can lead to the engine eating the belt, I decided to swap out my original engine mounts with the IS engine mounts. I figured stiffer mounts will prevent contact between the pulley and the subframe. But I was wrong. After hitting a deep pothole, I felt some vibrations in the steering wheel and here is the result: Luckily, the belt is still intact and on the remaining part of the pulley so no engine damage there. As a temporary precaution, I opted to use an aluminum pulley instead of the OEM plastic ones: https://www.ecstuning.com/b-hamburg-tech-parts/heavy-duty-aluminum-power-steering-pulley/32427553955~ham/ Since aluminum would bend but not crack it's perfect for this application: It wont let the belt loose even if it deforms. Besides, it is cheaper than the OEM pulley on ECS. My only concern with this is that it would transfer more force to the engine if pulley smashes the subframe again. So I still need to get some stiffer engine mounts. I am currently looking at AD Engineering and Black Forest Engineering mounts. Does anyone have any experience with these? Are there any significant NVH increase with these? Does anyone have any additional recommendations? Thanks everyone!
    16 replies | 1853 view(s)
  • LQQKOUT's Avatar
    01-06-2017, 02:00 PM
    LQQKOUT started a thread One more JP kit delivered in N54
    For anyone waiting on their JPWorkz kit, they are shipping out, slowly but you'll get your kit. (Old order #146 , #1007 in the new system) Took just over 3 months to get it. Still missing a couple of items, but the bulk of the kit is here.
    19 replies | 1941 view(s)
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