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Pushing RB's to their limits...
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01-24-2014, 04:51 PM | #45 | ||
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I believe the 460 WHP is an all out kill map on E85, which isn't hard to achieve with tons of advance ignition timing and 22 psi on stock turbos. |
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01-24-2014, 06:01 PM | #46 | |
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01-24-2014, 06:03 PM | #47 |
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I'm sure you can tune your RB's to get that additional push you are seeking from 0 -100, keep us posted and thanks for sharing your review.
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01-24-2014, 06:06 PM | #48 | |
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So if someone had the balls to push 22psi midrange I'd imagine the times and hp are there minus about 10% for awd loss on a dyno. |
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01-24-2014, 06:40 PM | #50 | ||
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335 XI Coupe/ RB Turbos/ JB4 w/ Wedge Backend / Meth / Inline LPFP / E85 / UUC SSK / Spec2+ SMFW / HPF 7'' IC / Forged DV's / AR DP's / BMS DCI / Apex Arc-8 /Hankook Ventus V12 EVO / KWV1 / HPF Exhaust/ NGK/
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01-24-2014, 06:42 PM | #51 | |||
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335 XI Coupe/ RB Turbos/ JB4 w/ Wedge Backend / Meth / Inline LPFP / E85 / UUC SSK / Spec2+ SMFW / HPF 7'' IC / Forged DV's / AR DP's / BMS DCI / Apex Arc-8 /Hankook Ventus V12 EVO / KWV1 / HPF Exhaust/ NGK/
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01-24-2014, 06:44 PM | #52 | |
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Just hold your comments till the car is remapped and tuned and I should be arguing with you instead of defending previous power figures...
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335 XI Coupe/ RB Turbos/ JB4 w/ Wedge Backend / Meth / Inline LPFP / E85 / UUC SSK / Spec2+ SMFW / HPF 7'' IC / Forged DV's / AR DP's / BMS DCI / Apex Arc-8 /Hankook Ventus V12 EVO / KWV1 / HPF Exhaust/ NGK/
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01-24-2014, 07:34 PM | #53 |
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I don't know why everyone gets so hung up on dyno numbers. Dan had one of the fastest stock turbo XI's even through he didn't cut a record time which would have been much easier in an AT XI, but for an MT XI to trap 120, that just goes to show he's making the numbers. You don't get trap speeds like that without the WHP to back it up. I can't wait to see how things come together with the RB's... It would be really cool to see him cut solid 11 flat. 10.99 would be even better.
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01-24-2014, 09:14 PM | #54 | |
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Hence I am more than happy being one of the cars you're referring too.
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01-25-2014, 01:07 AM | #55 | |
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10-22-2014, 01:20 PM | #56 |
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I hate to bring this up back from the dead, but what is the consensus on RB turbo's? What is the highest PSI they can safely handle? And what are the highest HP/TQ numbers with pump gas, race gas, pump gas and meth, race gas and meth, e85, etc? Has anyone compiled any of that info in one nice neat thread?
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10-22-2014, 05:35 PM | #57 | |
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10-22-2014, 05:39 PM | #58 |
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http://www.e90post.com/forums/showthread.php?t=847231
Here is my log, note I was running a conserative tune. I could have added another 2psi down low and netted 20-30 more whp safely, but it would have been getting borderline. 500/500 is a reasonabl expection assuming proper fueling with e85 or meth.
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2015 - Cayman GTS - Stock
2011 - 335is e92 - Cobb PTF E40/Rob - Beck/AR/Helix (458 rwtq and 479 rwhp) - Retired 2007 - 911 Turbo - EP1/AMS (617 awtq and 500 awhp) - Retired 2008 - 335i e92 - Cobb/AR/Helix/OSS (384 rwtq and 356 rwhp) - Retired |
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10-23-2014, 08:08 AM | #59 |
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I understand it can vary between cars, but no one really has said what the RB's are capable of....
We all know the stock turbos can peak 20, 21, maybe even 22 on some peoples setups (although not very safe IMO) and can make around 500 with the proper mods at the most. I want to know how much more the RB's can handle. It seems like with the upgraded RB's, mid to high 20 pounds of boost would be feasible, but not very many people are running higher than the stock numbers. So either they can not make much more than what they are currently making or people are afraid of pushing them past 22 psi. It is looking like for me, even though I have a DCT, the upgraded twins is out of the question. $3k+ is a lot for what little gains can be had, at least IMO. My car is a daily, but to have the potential to crank up the boost and make more than 600 rwhp/rwtq would be great. I have a supercharged 1/4 mile car, so I do not think I will miss the instant torque/response. I want something that pulls like a freight train for my weekend warrior. Tired of these few damn Honda's running around with baby size turbo's that eventually pull on me. |
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10-23-2014, 09:47 AM | #60 | |
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People trying to push stock frames into another universe are just asking for it. They won't last, doens't matter how much work (and good work, I should add) Rob or Tony puts into the wheels and porting. The frame size is what it is, and presents a huge source of heat and restriction. Perhaps I will be proven wrong, but I'd be shocked if these cars pushing 550-600WHP on stock turbos last more than half-a-year. It really has nothing to do with the craftsmanship of Tony or Rob, they both know how to make a quality product. But at the end of the day, the stock frame is a fundamental compromise. You can shoehorn whatever blade profile you'd like in it and make nice dyno queen numbers, but between the curve, the longevity, smoking, rattling....Just do it right and get a single. IMO Now if 480-500WHP is your target, think those hybrid options become the clear choice. I just find it funny that nearly a decade after this motor came out, people are still trying to find ways to obliterate the stock turbos.
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10-23-2014, 09:51 AM | #61 |
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dude, its all about your tune.... when i first installed my RBs i was soooooooooo disappointed i wanted to sell them right away!!!!
I was running bms e85 flash on stock turbos, 100% e85 and meth injection, car was a monster.....after rb install with same setup but e60 i couldn't notice much difference if any! Extremely disappointed I contacted Wedge and he sent me a flash.... and HOLY BANANAS, car was a night and day difference! it took a little fine tuning but i was speechless! I beat a 560whp TT 370z not too long ago and put about 2 cars on him in 4-5 runs, he recently went to the track and trapped 125!!!
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10-23-2014, 10:29 AM | #62 | ||
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10-23-2014, 01:25 PM | #63 |
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RBs are for folks that want the most out of a stockish fueling and susp set up. They really add to the power band north of 6k rpms, but if your goals are 600+ do it right with a single and upgrade the entire powertrain.
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