[slingblade05]

first of all what is detonation lol?
and how to fix it lol
1991 mustang

[itschristorres8]

well first off...those are really good questions lol i'd like to know too ..

[DaveT]

usually knocking back timing wll stop detonation also using higher octane gas will help and if the car has knock sensor it should autatically knock back timing to prevent it and if your car has one (I am not usre if it does) it may be bad

[matrixpuba]

right. either pull some timing or use a higher octane number. if you hear what sounds like marbles in a tin can, its detonation. next comes a broken piston lol

[Zak]

lol

[88BlueGT]

+1 Try running a higher octane and see if that helps. If not, than lower your timing and you shouldnt have any problems. What I would do is run 91 octane. Drop your timing to 10 degrees and see if it pings (it definetly shouldnt though). Than work your way up one degree at a time until it starts to ping. As soon as you hear pinging knock it back one degree and set it there. This whole process should take 10 mintues and possibly save your motor.