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  • fieldysnuts8's Avatar
    Today, 01:39 PM
    Out of curiosity, how many miles have you put on your cars? I think it is important to note that you are a unique case. You probably drive your cars harder than a normal owner, but you also take better care of them than a normal person as well.
    9 replies | 206 view(s)
  • AdminTeam's Avatar
    Today, 01:38 PM
    ponyscott, we appreciate you taking the time to join.
    0 replies | 0 view(s)
  • fieldysnuts8's Avatar
    Today, 01:36 PM
    I ended up buying a 2014 ATS 2.0t Premium. I have read that Audi's are worse as well but if you are gonna have expensive maintenance and need to buy an aftermarket warranty, you might as well buy the car you like most. The warranties on Audi's cost about the same as BMW's so the warranty companies are pricing the risk equally. I think very well maintained, lower mileage, German cars will probably be just fine and perhaps break slightly more than a normal car. The issue is when it does break, it costs significantly more, especially for the little things (like sunroof motors). Also, the risk in buying a used one is that the previous owner(s) did not take as good care of the car as they should have. As long as you get rid of the car before it hits 70k miles and it has been well maintained, get whatever you want. Here are some interesting articles on the topic: This first one addresses my last point: how well the previous owner took care of the car is key: http://jalopnik.com/car-reliability-is-a-myth-1650400172 This applies to all cars, but especially to German cars since parts/labor are much higher. This is probably one of the better articles I've read: http://oppositelock.jalopnik.com/long-term-quality-bmw-the-ultimate-payment-machine-1684292607/1684406969/+Kyosuke Here's a lighter take: http://dougdemuro.kinja.com/german-reliability-the-greatest-myth-ever-sold-to-amer-1572026115
    9 replies | 206 view(s)
  • Ingeniator's Avatar
    Today, 01:31 PM
    He should keep talking he is up to 13 turbos sold on the poll. I guess Rob will have some customers once his are done. As for R&D what equations allow you to get more flow(Bigger Wheel) with a smaller turbine wheel & A/R and still have low back pressure? This doesn't make sense to me your shaft speeds should be alright but the dp will be high I think.
    84 replies | 1999 view(s)
  • AdminTeam's Avatar
    Today, 01:29 PM
    TeresitTol, we appreciate you taking the time to join.
    0 replies | 0 view(s)
  • Cortez08's Avatar
    Today, 01:27 PM
    So you are saying the secondaries are doing nothing? I have a DP fix and was wondering if replacing them is a waste?
    11 replies | 151 view(s)
  • AdminTeam's Avatar
    Today, 01:18 PM
    Hey JulietPeel: :text-welcomewave:
    0 replies | 0 view(s)
  • Torgus's Avatar
    Today, 01:17 PM
    I swear sticky only allowed this thread to stir up drama, just when things feel slow around here you get a thread like this.
    84 replies | 1999 view(s)
  • Rob@RBTurbo's Avatar
    Today, 01:14 PM
    Scare tactics? We told VTT that they'd not be able to sell our product at $1999, especially not the way we produce. Not going to further get into the details to only enter into another fruitless fight… but pretty sure we were much beyond 100% correct on both fronts. Anyway we've tried to give you some pointers and with that you have essentially gone to the offensive, so best of luck to you. Rob
    84 replies | 1999 view(s)
  • Slicksilver's Avatar
    Today, 01:09 PM
    Again, what you think, I have enough info to know these are scare tactics :) you said the same thing to VTT when he was making his stage 2s and he stil got them done and sells them for less than you I believe. That is the price you pay for that turbine, not me :) guess I must have a competitive advantage on you there :) so what is the delta between the 12 blade Td04L or HL for you and your GTX turbine, cuz surely you wouldn't pass on just the increase to your customers?
    84 replies | 1999 view(s)
  • Slicksilver's Avatar
    Today, 01:03 PM
    Tony, so you know because of testing you did on 15Ts, cool bro. Now I will test, let's see if I get the same results :) the GTX does have a "clip" designed into the wheel, when you clip it more you Fuck up the design the garret engineers made, good job bro! from the pics I have seen, RBs turbine on his new stage 3 is the GTX a profile wheel just like yours, not the kamak 3 blade delete design. Maybe I will go find a pic and post it here to show you. Maybe Rob can clarify.
    84 replies | 1999 view(s)
  • Rob@RBTurbo's Avatar
    Today, 12:57 PM
    If you consider ~$450 ONLY for the turbines and many many hundreds extra just for the turbine housing modifications "marginal", plus many other surprises you have yet to figure out ( :cool: )... then we are ok with that. You have certainly read a lot and have very high hopes, but there will be quite a bit of busted bubbles in time. We've helped where we can and are really looking forward to the results. Take care, Rob
    84 replies | 1999 view(s)
  • Tony@VargasTurboTech's Avatar
    Today, 12:56 PM
    Rob, do a little research on the GTX turbos, what size compressors Garrett couples with that turbine design. The 20T is actually on the smaller side for it. They now offer a 71mm compressor on the same 53.8 turbines, that close to 20mm split. We are at 11mm, this blade profile is designed to run with big compressors, it has the built in clip, and we add a slight clip to help with the big wheel as well. No one is using this blade profile buit us, slick is under the impression your 9 blades are the Garrett profile, they are not. They are kamak wheels with the MHI profile with 3 blades taken out in cad and recast. Our turbine, is perfectly suited to run an 11mm split between turbine, and compressor. With all that said, we both know the 12 blade MHI with a 20T is absoluely out of line. We have back to back testing results on 9 and 12 blades on 15T's. The results are as you would expect. Just let the guy do what he wants, and sit back and watch. If you can't tell by now, he thinks he knows everything. He reminds me of my 15 year olf nephew, that kid is an expert on EVERYTHING.
    84 replies | 1999 view(s)
  • Slicksilver's Avatar
    Today, 12:48 PM
    That is not a discussion for this thread :). This is for development results of my hybrid turbos. Remember I am no vendor :)course won't post those results unt his thread because It was derailed by the other turbo vendors in page 2. I marked officially where it was derailed. So when more development results are ready, I will post them in a new thread. Only the beginning of page one is useful and the post where I added an addendum to the quality section.
    84 replies | 1999 view(s)
  • Slicksilver's Avatar
    Today, 12:48 PM
    this is what you "think" will happen and it may, it is defiantly pushing the limit of compressor to turbine ratio depending on max HP goals, either way I want to test it, real world testing not computer racing :) i personally don't believe clipping is the solution, it is a lazy solution that sacrifices too much in my opinion with turbo lag and low end torque. The right approach if you run into a wall on the top end is get a bigger turbine. like I said, if it doesn't work, I will upgrade to the TD04HL GTX 9 blade turbine with marginal cost increases :) already costed out the modifications and have the design approved by the machine and fab shop.
    84 replies | 1999 view(s)
  • Legionofboom's Avatar
    Today, 12:47 PM
    I thought you were selling them?
    84 replies | 1999 view(s)
  • Slicksilver's Avatar
    Today, 12:41 PM
    Tony, haha, everyone who can think for themselves sees right through you, maybe if you got something done on time once in a while you would have a leg to stand on. But you prefer to argue with an engineer in his home garage making a turbo for himself then getting your commitments done :)
    84 replies | 1999 view(s)
  • Rob@RBTurbo's Avatar
    Today, 12:41 PM
    Agree, but you are not applying the aforementioned strategies to your concept in this thread. One of several things, but since we are on the topic you are making a large blunder using a 20T compressor on a 12 blade TD04L unclipped. Either use a larger turbine, or clip it. We would not even suggest using the 20T on the TD04L even clipped quite frankly, it is design overkill. Rob
    84 replies | 1999 view(s)
  • foe516's Avatar
    Today, 12:40 PM
    I love this. No offense but where are your stage 3's? How long did it take you for stage 2+? the first is years and counting, the 2+ took months when you said weeks. products speak for themselves, not promises or lip service. this platform sucks in terms of availability of different turbo makers. i wish there were more options.
    84 replies | 1999 view(s)
  • Tony@VargasTurboTech's Avatar
    Today, 12:38 PM
    Coooool story bro, tell us moar. Tell us moar! :dance:
    84 replies | 1999 view(s)
  • Slicksilver's Avatar
    Today, 12:37 PM
    Rob, From the data and Dynos I have seen for this situation, it is a significant degradation of turbo lag and low end torque for just a bit more up top, way better to just use a bigger turbine as you should. Would be interesting to know if Porsche had a KERS system on the GT2, because then it would make sense for the design package. I'm sure those engineers have good reasons.
    84 replies | 1999 view(s)
  • Tony@VargasTurboTech's Avatar
    Today, 12:37 PM
    This is correct. The guy building prefab turbos to make some side money, making statements like clipping bad, never clip, clip bad, doesn't understand these concepts. Many times you clip to purposely slow spool when using a large compressor etc. That is precisely why Porsche did in the GT2.
    84 replies | 1999 view(s)
  • Rob@RBTurbo's Avatar
    Today, 12:34 PM
    Hope this doesn't turn into another battle but figured we'd toss in a tidbit about the clipping. Clipping certainly degrades the spool function. However it also certainly increases the flow function. The key is to know how much to clip and to not overdue it to have a good overall balance of spool decrease/to flow increase. Many turbines these days have a "natural" clip, meaning it is built into the casting of the fins. In short, nothing wrong with clipping as long as it is done tastefully. And in some situations where an oversized compressor is utilized on an undersized turbine, clipping the turbine becomes more of a requirement than an option. Rob
    84 replies | 1999 view(s)
  • Slicksilver's Avatar
    Today, 12:29 PM
    Cool story Tony the Troll :) Tony, you think you know everything on clipped turbines for these turbos??? Well guess what, there is data out there for what spool and turbo performance looks like on turbos like these before clipping and after clipping. Just use that magical Google button and you will see it plastered across forums for other platforms. The data looks terrible when you clip a turbine that was designed not to be clipped. I can't comment on Porsche and what they did with those turbine designs, one thing I am sure, they have the resources and knowledge to do CFD and dynamic motion analysis on their turbine modifications and bench and meticulous track testing and I am sure they did and have good reasons based in math and physics on why they did it for that turbo on that race car. You...nope you don't have that, you are no engineer and have no engineer who could do CFD on a turbine on staff. Your a turbo job shop, not an engineering R&D department. You probably couldn't solve an equation of motion to save yor life. So keep pretending like you know "engineering", because bro, you don't, you stick to rules of thumbs :)
    84 replies | 1999 view(s)
  • Slicksilver's Avatar
    Today, 12:18 PM
    Fair enough. VSR balance results will be posted when ready to share.
    84 replies | 1999 view(s)
  • NniftyFour's Avatar
    Today, 12:05 PM
    Post up torque request (High) and requested torque driver tables.
    37 replies | 889 view(s)
  • Tony@VargasTurboTech's Avatar
    Today, 11:58 AM
    I kidddd I kidddd. His logs should be pretty good right off the bat as he had already done some tuning.looking forward to seeing them.
    194 replies | 9636 view(s)
  • Legionofboom's Avatar
    Today, 11:52 AM
    :P NO FUN!
    194 replies | 9636 view(s)
  • AdminTeam's Avatar
    Today, 11:40 AM
    Welcome to a real enthusiast forum jaxx.
    0 replies | 5 view(s)
  • Rob@RBTurbo's Avatar
    Today, 11:35 AM
    Sure thing. Was just trying to prep you in that you have less than a 1% shot in convincing another operator to get you the results you are counting on, and if you do it is going to likely cost dearly. This is why your original units had just so-so results as that is what is easily attainable and actually what is considered the norm.
    84 replies | 1999 view(s)
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