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      05-14-2013, 06:11 PM   #7672
marv85
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Drives: '07 E92 335i MT
Join Date: Jun 2010
Location: Bay Area

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Quote:
Originally Posted by Ænema View Post
I'm a big fan of meth for all of it's other benefits and the fueling headroom it provides is just a bonus. No matter how much octane you have, come summer time you're still going to be giving up a lot of timing due to CATs and there's not much even the best intercooler can do. Chemical cooling FTW lol
+1000. especially when going for a track event (laps more so than drag) you will be limited by your IATs and not your octane(assuming you have enough octane).

you can always flatten out the timing compensation due to IATs but I am not comfortable doing that.

135pats, I know you got your answer and I concur with Anema on not running more ethanol. For a first order, you stop adding ethanol, when you get to the point where your dropping LPFP starts causing issue with your HPFP and you start leaning out.
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'07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar.
'05 C55 AMG
SOLD - '22 Tesla M3P | '10 E92 335i M, 6MT COBB, FBO, st2 LPFP, Mfactory LSD | '07 E90 335i, PTF COBB E50, FBO, HFS4

Last edited by marv85; 05-14-2013 at 06:19 PM..
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