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      08-06-2012, 08:19 PM   #27
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Drives: 2016 BMW i8
Join Date: Dec 2006
Location: Monarch Beach

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Originally Posted by klammer View Post
Might be a bit off topic, but on the last few super hot track days, I would top off my gas tank with 104 octane, maybe 1/4 tank maybe 1/2, but not more. I know this is not readily available in the real world, but most tracks seem to offer it and it seems that's where the OP is planning on using the meth. Just seems loads easier :
Yes I will be running 100 octane for roll-on and track events. But higher octane does nothing to cool IAT's. I have logs on back to back runs where my car was sitting at idle for a long period during a roll-on event. Meth didn't flow and IAT's hit 90c! Meth flowed on the next run and IAT's were around 36c. Made a HUGE power difference.
Daily: 2016 BMW i8
Airstrip: 2015 Porsche 991 Turbo S / GIAC FBO Meth 68mm turbos
Track: 2015 Porsche 991 GT3
Utility: 2012 BMW e92 M3 DCT
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