okay guys I use a Br7ef with 22psi on straight 93 octane pump gas and have no detonation whatsoever, why use an 8 or colder plug? Also the 8's don't have a resistor in the plug which my pump speed controller doesn't like. I think you would loose power with a plug too cold and cause low-rpm misfires even if its not cold enough to foul.
__________________
1150bhp Whipple 4.0 Supercharged 427ci Camaro ZL1
|