Quote: Originally Posted by
nutz 
leaded fuel will build up on sensors (o2) and running a super high octane can result in very high EGT's and a loss of power if you don't tune for it
so your answer is a stock un-modded car 93 oct
stock modded (clamped) W/ high boost 97+ oct depending on the clamp
remember higher oct burns slower (and has a higher flash point
) so it will do almost the same thing as retarding your ignition if misused
Actually, if you don't re-tune for higher octane your car will just run rich...
Also, race gas doesn't burn any slower than regular pump gas it simply takes more energy to initially light-off.
Meatman, go to the Performance Modifications forum on this board (
Performance Modifications - SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum ) check out the "stickies" section & read up on the basic modifications / go-fast how to's.
