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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 500whp? Almost there....



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      04-06-2009, 06:44 PM   #45
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Quote:
Originally Posted by akira42 View Post
Shiv,
Is there a reason why meth is being used with 104 octane? I was under the impression that a meth kit more or less gave made it so you wouldn't need higher octanes. I'm guessing i heard wrong?
meth also helps cool, just because you have meth doesn't mean you can't/shouldn't run higher octane gas as well.
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      04-06-2009, 06:45 PM   #46
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Quote:
Originally Posted by akira42 View Post
Shiv,
Is there a reason why meth is being used with 104 octane? I was under the impression that a meth kit more or less gave made it so you wouldn't need higher octanes. I'm guessing i heard wrong?
It's there for charge cooling and to address the fuel system limitation above 470whp.

Shiv
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      04-06-2009, 07:45 PM   #47
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So two of the big upgrades are the clutch and flywheel upgrade as well as turbos. Most here have the DP's with either catless or hi-flow catted. The Intercoolers are upgraded with a lot of cars as well. How much different are the FMIC's that ASR uses?
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