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      09-18-2012, 10:21 AM   #20
Major General

Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

iTrader: (3)

Originally Posted by m33 View Post
Honestly your car will make more power in the 50's f with out meth then with .
Meth just prevents you from heat soaking that's all...
And if there are gains there very minimal.

ESS has these cars tuned right
I think ESS has these cars tuned right for no meth, but meth will also increase octane, allowing more ignition timing. However, without a meth-specific tune, the gains are limited since you cannot flow as much meth. The percentage of meth run is obviously also an important factor in the octane increase. Still, even with the same tune on the same car, I think a 91 octane dyno, a 93 octane dyno and a 100 octane race gas dyno would yield different numbers, with the higher octane producing the higher numbers.