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      05-27-2012, 03:00 PM   #15
cstavaru
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Drives: 2009 335i M Sport Sedan 6MT
Join Date: Aug 2008
Location: Bucharest, Romania

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Quote:
Originally Posted by scottro View Post
That's a pretty good graph for not using meth. Even your IAT's are up to about what I'm seeing (~38degC) and you're still able to have good timing w/ high boost. What octane gas were you using for that?

For what it's worth, on AZ 91oct fuel w/o meth and the high IAT's, I really can't seem to run much more than 11-12psi without seeing timing drop. :-(
In that graph I am using 93 octane gas with GIAC Stage 2 93 octane maps. However the 91 octane map graph looks as good as this one, with a bit lower timing in the low-midrange (up to 2.5 degrees difference at low RPMs and 0.5-1degree at high RPMs - from my analysis). But I had GIAC flash the 93 octane maps, the car is a lot more livelier in the lower RPMs (<3500) with these.

Quote:
Originally Posted by jazze90 View Post
Which tune is this? GIAC Race?
Yes, GIAC Stage 2 Race.
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