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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 ;)
    69 replies | 2249 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 | 3143 view(s)
  • iminhell1's Avatar
    Yesterday, 05:14 AM
    I'm half the country away but need to know where to go for fuel. And, does anyone down there sell E98? How much per gallon?
    12 replies | 1610 view(s)
  • Sticky's Avatar
    01-11-2017, 08:17 PM
    Look, the 2JZ-GTE is a great motor. The iron block I6 gets swapped into everything these days. You know what else is a great iron block I6 engine? The BMW S54. Which comes under the hood of the E85 Z4 M so BMW already did the work for you if you want a stout I6 that can take a ton of boost. Ok, maybe this was a base Z4 so the owner decided to toss a 2JZ in there with a top mount single turbo to be different. If you want to be different, swap in a Viper V10 like this guy did. Go with something you can not get from the factory like a V8. Call us purists but if you are going to go with an iron block I6, go with BMW's.
    23 replies | 189 view(s)
  • AWSAWS's Avatar
    01-10-2017, 07:32 PM
    AWSAWS started a thread Turbo install, difficulty? in N54
    Hi guys, How difficult is it to install the new twin turbos on an n54? My car is an e92 335i, DCT. Is it something any good mechanic can do? I've got 2 options in my area. A garage that has worked on all kinds of cars. Hondas, Scoobies, evos and some older BMWs or a garage that has done 335s before but charge twice as much. The first, cheaper garage, has experience of engine rebuilds and turbo upgrades but they haven't worked on a 335 before. I'm supplying all parts so it's a case of paying labor. One is around $500, the other $900 So on a 1 to 10 scale. How difficult is the job and how much does experience help? Thanks
    13 replies | 1028 view(s)
  • R.G.'s Avatar
    01-12-2017, 03:42 AM
    I'm usually not surprised by any existing available modifications for the E9x platform but was completely unaware this even existed. Check it out http://www.driftworks.com/wisefab-bmw-e90-e91-e92-rear-suspension-arm-hub-knuckle-kit-3-series-all-models.html
    8 replies | 1341 view(s)
  • Sticky's Avatar
    01-12-2017, 06:17 PM
    The Active Autowerke Level III supercharger for the E92 M3 S65 V8 is a very solid package. It offers arguably the most beautiful torque curve in the industry and at roughly 9.5 psi of boost will put the car in the ~600 wheel horsepower range depending on supporting modifications. One such supporting modifications is methanol injection which this M3 is stated to have but was turned off for the run. Why was it turned off? Good question. For a run like this you would want it on. The way the GTR gets pulled likely means it is stock. This goes to show how potent the M3 is from a roll with the Active Level III setup. Of course, from a stop this would be a different race but with a blower a top end rolling race is exactly the M3's game.
    15 replies | 256 view(s)
  • threetirtyfive's Avatar
    Yesterday, 08:14 AM
    Hi guys I went back down the dyno following my dyno last may where I made 375bhp on a custom tune. Since then I've fixed the cel caused by lambda sensors, fitted my Chinese Wagner fmic and lsd. This time it reached 398bhp- flywheel estimate from standard transmission loss. With Ron 97 fuel. I see some of you guys with similar tunes claiming this or over 400 at the wheels. In fact it seems standard now to quote whp. What sort of numbers are you guys getting on stage 2? I'm OK with this current power delivery but can't see it besting this without going with meth (or of course aftermarket turbos). Decat as far as I'm concerned will help spool by increasing exhaust gas flow and slightly lowering egt, but not do much else if I'm hitting boost target. Some of the figures I've seen on this forum seem perhaps.... Exaggerated. Maybe dyno dynamics just reads lower than the dynos you guys use.
    14 replies | 668 view(s)
  • tiesto14's Avatar
    01-09-2017, 06:33 PM
    Hello everybody, New to the forum and to the BMW world, before this car i had a Lancer Evo X with Bolt-ons and of course remapping, but now I know i'm entering a new world :cool:, In fact I don't want to tune the car to a maximum, just "optimize it", no hardware change at all, after reading articles / websites here and there, i'd have some questions if some of you can help it would be glad : 1) I think my car needs DME unlock, but impossible for me to go somewhere to do that, i live in Africa :naughty:, what's the solution here ? 2) The car will stays stock, what gain can I expect with an OTS tune ? I run OCT 90-91 depending on the season lol (this is africa). 3) I guess the top speed limiter and higher rev limiter will be removed along with cold start cat heat cycle. Can these changes be dangerous for a stock car ? 4) Main function I need (as i won't service my car at the local dealer), read / clear errors and maintenance alerts (oil reset, brake pads change light reset). 5) Well the bonus question, if i suddunly want to upgrade the car, which brands should I look for :D (for bolt-ons, turbo untouched) Thanks ! Nick
    10 replies | 910 view(s)
  • d21spike's Avatar
    01-13-2017, 08:29 PM
    Alright this one will be more informative than progress, but hopefully someone doesn't end up where I did. Evan Patak came across this when he was doing his rebuild, but it doesn't seem like he investigated it any further. This is his thread: http://www.bimmerboost.com/showthread.php?77527-The-Junkyard-N54-Engine-Rebuild-and-Refresh&highlight=wagon+rebuild It seems from the early versions of the N54 to the later versions (335is in Evan's case) BMW decided to redesign the crank hub as well as the sprocket for the Oil/Vac Pumps. As such, I was in a situation where I had an old style hub with a new style sprocket. In my last update, I touched on the revision of the sprocket where the grip discs are now attached to it. Turns out there's more to it than that....(please note these measurements are not 100% accurate as I was trying to take a picture and hold the caliper) Old design (11237570107) on the left and new design (11237593701) on the right. If you notice, the new design takes a stepped approach to the shaft. When I had a new style sprocket and an old style hub, I faced fitment issues. The following images will show this. This is both Oil/Vac sprockets side by side. New design (11417589309) on the left and old design (11417558909) on the right. The following will be some measurements showing the differences... This is the new style hub measurement where the sprocket would sit This is the new style sprocket measurement This is the old style hub measurement where the sprocket(s) would sit This is the old style sprocket measurement Lastly, to complete it a timing sprocket measurement which hasn't changed So I had an old hub on which a new style sprocket would not fit. This was largely caused by RealOem since it listed the new style sprocket but old style hub on the result pages. Thankfully, FCPEuro came through and helped rectify this issue so I had my new hub in a day (today.) Hopefully this weekend I can proceed with more reassembly. For general reference this is what you should get... If staying with old style... 1x Crank Hub - 11237570107 1x Washer - 11237557561 2x Grip Disc - 11417563246 1x Timing Sprocket - 11317502180 1x Oil/Vac Sprocket - 11417558909 If going new style... 1x Crank Hub - 11237593701 1x Washer - 11237557561 1x Timing Sprocket - 11317502180 1x Oil/Vac Sprocket - 11417589309 I do not know if there are any advantages between old and new, but I have decided to go with the new style. It seems like there is less room for error, but this is just my uneducated opinion.
    10 replies | 825 view(s)
  • idratherbesurfing's Avatar
    Yesterday, 06:30 PM
    So who remembers Helix fmic’s?? Well, as some of you know, Helix IC’s were created by the previous owners of the company called ATM (Ambient Thermal Management) who had been selling a variety of fmic’s for different platforms, obviously including BMW. But then they eventually tapered off and ceased production. Moving on months later, a good friend of mine recently had the opportunity to buy out ATM and he did! So why am I sharing this with you? Well, ATM is back and gearing up for production again. This means another reliable company will be producing parts in the BMW Community! And they have several products in store for the “e-series” cars as well as other BMW’s! So be aware and be on the look out for updates and a brand new website as well. ATM is back under new management with some surprises in store!:awesome:
    8 replies | 520 view(s)
  • ///MPOSTER's Avatar
    Yesterday, 01:50 PM
    2018 Kia Stinger: A RWD Sports Sedan Aimed at stealing BMW customers ~ 365 horsepower and rear-wheel drive. via DPCcars: “Unlike any Kia that has come before it, the Stinger really is a dream car for us, and here today in Detroit, that dream is now a reality after years of commitment and hard work from a passionate group of designers, engineers and executives around the world,” said Orth Hedrick, vice president, product planning, Kia Motors America. “From its GT concept-car origins to the years of tuning and refining on the legendary Nurburgring circuit, no detail was too small to be obsessed over, and the result is simply stunning.” Instantly recognizable as a direct evolution of the concept that preceded it, the all-new 2018 Kia Stinger design was overseen by Peter Schreyer, Kia Motors’ chief design officer, and his talented team of designers in Frankfurt. Ride and handling development was looked after by Albert Biermann, head of Kia’s Vehicle Test and High Performance Development and his group of engineers in Korea and on the grueling Nurburgring racing circuit. "Peter Schreyer (born 1953) is a German automobile designer for Hyundai Motor and Kia Motors, widely known for his design contributions to the Audi TT. He has been the chief design officer at Kia Motors since 2006 and on 28 December 2012, was named one of three presidents of the company. He is currently the chief designer at Hyundai-Kia and works with Luc Donckerwolke, former design director of Volkswagen Group - Bentley, Lamborghini and Audi from 2016. In 2006, Car Design News called the Audi TT one of "the most influential automotive design in recent time." But what makes a true gran turismo? This question was the foundation for a years-long journey that began when the GT concept was first unveiled at the 2011 Frankfurt Motor Show. Although every Kia design study has a purpose, the GT concept was something considered by many outside the company as little more than a dream for a brand known for producing mass-market transportation rooted in value. But the GT ignited embers of passion that sparked a fire within the organization and over the next five years that fire would grow beyond fantasy and morph into reality. Once the Stinger was green lighted, that gran turismo question became a mantra as development commenced. Coming from Kia, the design had to be bold. And it was. But it also had to be nimble and fast while also luxurious and quiet. It had to achieve the perfect balance of ride and handling and seat five comfortably with room for luggage. It had to be a lot of things, but most of all, it had to be an authentic gran turismo. And it is. The twin-turbocharged V-6 is Hyundai’s direct-injected aluminum Lambda II unit and is basically the same engine found in the Genesis G90, generating its peak 365 ponies at 6000 rpm and accompanying that with 376 lb-ft of torque that’s available from 1300 rpm. The 2.0-liter turbocharged four-cylinder is effectively a longitudinal version of the unit Hyundai and Kia use in their front-wheel-drive-based vehicles, but it’s also related to the engine fitted in the first-gen Hyundai Genesis coupe. The peak of 255 horsepower arrives at 6200 rpm, with 260 lb-ft of torque spread across a plateau from 1400 to 4000 rpm. The only transmission is a development of the K900’s automatic and uses a tuned-mass damper on the flywheel to help reduce torsional vibration through the drivetrain. The optional all-wheel-drive system features torque vectoring, while the rear-drive version has a standard limited-slip differential. Via caranddriver: We can’t say that we weren’t forewarned. Kia has been dropping broad hints about its plan to produce a rear-wheel-drive sedan for years. The original GT concept was shown at the Frankfurt auto show as long ago as 2011, with the Stinger GT4 building on it at the 2014 Detroit show. Now the wait is finally over as the company has unveiled the production version of its forthcoming sports sedan, which adopts the Stinger name. Don’t confuse it with the K900. The Stinger is a much sleeker and sportier proposition than its staid big sister, and it has a low, coupelike roofline. Power will come from two engines, with the range-topping 365-hp turbo 3.3-liter V-6 making that version the most powerful roadgoing Kia yet; a 255-hp 2.0-liter four-cylinder will serve as the entry-level engine. The Stinger gets an eight-speed automatic transmission, with buyers able to choose between rear- and all-wheel drive. Kia says it is targeting a 5.1-second zero-to-62-mph time and a 167-mph top speed for the 3.3-liter. There also will be a diesel version for Europe, but there are no plans to bring it to the States.
    7 replies | 798 view(s)
  • Sticky's Avatar
    01-13-2017, 12:56 PM
    It's long overdue to update BimmerBoost's N54 ECU flash software. Yes, other options have come along and that's great. My goal is not to make money but offer free flashing to the community just as it was done originally. Unfortunately, money complicates things and when people see they can make a quick buck people change in a hurry. If you know how to program in C# and would like to help update the software and offer free flashing for the community, PM me. If necessary, I'll gladly pay you for your work. I'm not looking to make money on the software but just make it possible for more people to have freedom to enjoy and experiment with their cars.
    9 replies | 440 view(s)
  • Grand_hustle17's Avatar
    Today, 01:11 AM
    Grand_hustle17 started a thread Wastegate Springs in N54
    This is for all the single turbo guys... quick question. Well a few questions and kinda looking for a bit od specifics on Single turbo setups and how you guys went about it... so i quess my question is. What Single Turbo Kit: What turbo: What Wastegate Spring: Did you originally started with that size wastegate spring?: what are your boost targets:
    8 replies | 333 view(s)
  • ///MPOSTER's Avatar
    01-09-2017, 08:31 PM
    Via BMW blog.. "The BMW X2 SAC was previewed just a few months ago at the Paris Motor Show showcasing a new design language which is rumored to appear in future X models. Now, the new X concept continues its tour with a stop at the largest auto show of the year – Detroit. The BMW Concept X2 has a familiar design with the front apron dominated by a large center air intake found below the kidney grille. The rounded-off design in the rear also features dark cladding below the rear apron, giving it a slimmer look. The biggest departure from the X1 is the added width up front, which gives the X2 a much more aggressive look." With the SUV concept wheels/tires, it really sets it off as an SUV. Although I can't say I even remotely like the choice of black-silver wheel, the rugged tire completes the look. Take a step back and imagine that the X2 looks like a more aggressive hot hatch. With some sport wheels and a nice lowering, this X2 can be one nice looking hatchback. Check out the sleek lines and the BMW roundel on the pillar. Also notice the forward leaning kidney grills which looks like they are paying homage to the classic 3.0 CSL. I like the X2 roofline better than the X4/ X6 sloped. I won't be buying it as it may be too small for a family, but seeing it now gives me hope that they will make some nice improvements across the X platform to make a more aggressive and sporty SUV for future purchase.
    9 replies | 232 view(s)
  • ///MPOSTER's Avatar
    01-09-2017, 09:13 PM
    Honda Riding Assist motorcycle Wins Three Awards at CES 2017 – Engadget’s Best of CES 2017 “Best Innovation” and “Best Automotive Technology” Awards and Popular Mechanics’ Best of CES “Editors’ Choice Awards” – LAS VEGAS, January 9, 2017 – Honda Motor Co., Ltd. today announced that Honda Riding Assist motorcycle, a concept model of Honda’s self-balancing motorcycle, which was exhibited at the CES 2017, the world’s largest consumer electronics and consumer technology tradeshow held in Las Vegas from January 5 – 8, 2017, won three awards. The Honda Riding Assist motorcycle won the Best of CES 2017 “Best Innovation” and “Best Automotive Technology” awards as judged by Engadget*1, the official partner of the Best of CES Awards, as well as the Popular Mechanics magazine’s*2 Best of CES “Editors’ Choice Awards.” In a global debut at CES, Honda unveiled its Riding Assist technology, which leverages Honda’s robotics technology to create a self-balancing motorcycle that greatly reduces the possibility of falling over while the motorcycle is at rest. Rather than relying on gyroscopes, which add a great deal of weight and alter the riding experience as announced by other companies, the Honda Riding Assist incorporates technology originally developed for the company’s UNI-CUB personal mobility device. Honda Riding Assist is Honda’s proposal to make touring and everyday use of motorcycle more fun.
    2 replies | 1108 view(s)
  • berns's Avatar
    01-13-2017, 02:23 PM
    Brand new Cobb Catback that's been sitting in my apartment for two months. Box opened for the photo. All parts untouched and brand new! Friend of mine bought this under my recommendation. He owed me money but was in a tight spot and just gave this to me to sell instead. I have this exhaust on my car and get compliments often. The welds are beautiful, great quality and an awesome sound. Video clips below. Sells for $1295 + shipping from COBB. My BimmerBoost buddy price is $950 + shipping, or local pickup in LA. The box is huge -- I put my 5'1" girlfriend on it for reference.
    5 replies | 635 view(s)
  • shushikiary's Avatar
    01-13-2017, 01:35 PM
    A friend of mine is running the MHD stage 1 sport (we only have 91 octane gas here in colorado) tune and in the cold weather is experiencing some sputtering while flooring it in 3rd gear, and then also some really rough idle issues that come and go at cold start until the engine warms up, this is on a MT with the transmission in neutral and clutch engaged. He grabbed a data log of a 3rd gear pull that was exhibiting the issue: http://datazap.me/u/jamnation862/throttle-hesitation?log=0&data=3-15-21-22&solo=15-16-22 You can see the RPM rise then lower again showing the hesitation he's experiencing, and right there the AFR spiked pretty bad with a large spike in STFT. Now, if the AFR had spiked lower instead of higher I'd think he had a bad coil or spark plug, but we see it spike up. The HPFP pressure is great, the LPFP is great as well. So the only things left to think about are either a tune issue, or possible an injector issue. Most injector issues I've seen are usually of them leaking so you run richer not leaner, so I just want some other opinions on what the issue might be before we go replace a bank of injectors to "try" to fix it. I also shot a PM to Martial from MHD to see if maybe they'd look and see if its possibly a tune issue. Thanks
    5 replies | 507 view(s)
  • ///MPOSTER's Avatar
    01-11-2017, 05:42 PM
    ///MPOSTER started a thread Jay Leno's (BMW) Garage in S65
    Jay leno talks BMW swapped S65 in 1 series.
    4 replies | 542 view(s)
  • AdminTeam's Avatar
    01-11-2017, 11:10 AM
    Dlaclair535, we appreciate you taking the time to join.
    2 replies | 837 view(s)
  • Enfiftyfore's Avatar
    01-14-2017, 09:57 PM
    A few months ago, my 2step screwed up and caused ignition issues. I was enrolled from one state to another and unfortunately, I had to leave my car with a shop for them to fix it because I was hours away from home and had to get back. So, we determined it was the 2step and so he removed it. However, instead of removing the green wires as well, they just cut the 2step unit off and left it like that. So I no longer have the ignition issues, but, I am have another issue which is zero boost. When I put the car in Map zero, it runs just like a normal n54 would in limp mode. When I put it in any other map, including map 4, and give it more than 30% throttle, the motor does a kind of fuel cut type of thing and the whole motor shakes etc etc. Also, zero boost. Anybody have any input for me? Boost leak maybe? No codes though...
    5 replies | 390 view(s)
  • AWSAWS's Avatar
    Today, 11:54 AM
    AWSAWS started a thread DIY progressive controller? in N54
    Hi Guys, I run meth injection with a JB4 and the FSB. I want to let the JB4 and FSB decide when meth should flow and when it should not. So that I keep the failsafes. I want to control the 12volt signal that is outputted to the pump. Can I use a MOSFET to do this? So that I can pulse the 12v signal depending on what voltage I read from the N20 3.5bar TMAP sensor? The on/off will be controlled by the JB4/FSB but the signal reaching the pump can be controlled by the mosfet. The duty cycle can be changed based on the TMAP signal. Does anyone even know how to make the JB4/FSB do the pulsing itself? Maybe there is no need for a MOSFET. I have asked this to Terry before. Didn't get told how to do it, but I was told it can be done. It might be a bit of a secret with fuel it trying to sell a port injection kit. (From what I understand, you have to be careful not to leech too much off the TMAP or you might end up lowering the voltage and giving false pressure\temp readings back to the car)
    6 replies | 170 view(s)
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