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BMW 3-Series (E90 E92) Forum
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**627WHP@22.5psi** Vishnu/FFTEC Single Turbo System Dyno Session #3 (PROcede Tuned)
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02-22-2012, 09:04 AM | #45 |
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02-22-2012, 09:24 AM | #48 |
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Oh SNAP!
![]() Would you run out of fuel down low if you upped boost earlier? I know piggies had issues before in richening AFRs early on in the RPMs...i guess you'll be able to show that with a smaller turbo |
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02-22-2012, 09:48 AM | #50 |
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Fantastic work.
Really looking forward to getting out from warranty on my 1M so I can go wild. Ideally, I'd like a small(er) turbo with quick spool-up and a broad, flat torque curve that could run on 93 octane with no meth. Not really concerned about peak #s as much as a nice fat area under the curve. Neil |
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02-22-2012, 09:52 AM | #51 |
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I'm not sure if it has been mentioned, but what model turbo is this?
Also, will this void the warranty....oh, and what spring should i get? ![]()
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02-22-2012, 09:59 AM | #52 |
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Very nice. Congrats.
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02-22-2012, 09:59 AM | #53 |
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How's this running to 22.5psi on the stock 2.5bar tmap sensor? 2.5bar - 1bar for atmospheric you get 1.5bar measurable boost at sea level, so 21.7-21.8psi...did you already plug in a 3bar?
Oh, and would you mind posting the datalog and AFR trace... |
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02-22-2012, 10:10 AM | #54 |
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This is incredible. Way to go Shiv! I know many will disagree but whats the point in going any further? 600-700 is more than anyone needs. I feel like its at the point where the reward to risk trade-off is sketchy. Although I know the procedes is doing a great job of keeping things safe I just feel going any further will cause stuff to wear faster and cause mechanical failure.... But I could be wrong!
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02-22-2012, 10:11 AM | #55 |
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which turbo is being used for this run?
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02-22-2012, 10:11 AM | #56 | |
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Quote:
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02-22-2012, 10:20 AM | #57 | |
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Quote:
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02-22-2012, 10:29 AM | #58 |
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I'd like to see a retune and the resulting graph where boost is ramped up normally, ie. as quick as possible. I understand the reasoning behind ramping it up like a NA engine (drivetrain protection), but to me, that's not the point of a big turbo. By nature, the bigger turbo should hit full spool much later than the little twins, but still come on hard enough that you get rocked into the back of your seat. That's a high WTQ/WHP big turbo experience for me... not a slow gradual increase where peak boost hits at 6500 RPM.
If snapping axles or destroying tranny gears is the concern, then I'd say this size turbo isn't optimal for the car as a whole, despite the N54 being able to manage it without issue. |
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02-22-2012, 10:31 AM | #59 | |
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Quote:
The intercooler pressure drop off is around 0,7-0,8 psi ,so the tmap sensor is reading arround 21.7-21.8 . Is that right? |
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02-22-2012, 10:42 AM | #61 |
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Ridiculous
I did not think this motor would handle this much on stock internals... With race gas, you guys might be touching 700 WHP. What is the PSI limit of this turbo ? Great job Shiv and company!
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02-22-2012, 10:56 AM | #62 |
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COTM http://www.e90post.com/forums/showth...mia2super+cotm
Wrecked FOR SALE THREAD! http://www.e90post.com/forums/showthread.php?p=20868183 ![]() |
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02-22-2012, 11:26 AM | #64 |
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![]() ![]() great great job can't wait for this kit to sell to the public. just a quick question, with this kit what are you using for meth mixture, nozzle size, and is it a 150,200, or 250 psi pump? |
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02-22-2012, 11:29 AM | #65 | |
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Quote:
![]() at sealevel take 1bar off that and you get 1.5bar of measuring range which is 21.7556607psi...unless he's below sea level Last edited by dzenno; 02-22-2012 at 11:36 AM. |
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02-22-2012, 11:34 AM | #66 |
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Weird...timing this 60-130 looks to be in the 7s? Where's that extra power going? You should be well into the 6s...7s are RB territory...that's weird...vbox it!
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