High compression + bad battery + underdrive pullies = missfire???
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,577
Likes: 3
From: Southern Maryland Maryland
High compression + bad battery + underdrive pullies = missfire???
Well since I installed my high compression heads, I have only been to the track once and had a bad nitrous explosion. Since than, my battery has gone south. The battery is not strong enough to even light up the interior lights with the keys in the ignition. I can jumpstart the car and get it running but it sounds alittle rough and lacks top end power. Could a bad battery and underdrive pullies not allow the ignition system to work correctly and give the spark plugs enough juice to light the 11.75:1 charge?
Phillip
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Phillip
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Drifting
Joined: May 2002
Posts: 1,607
Likes: 1
From: San Francisco CA
Re: High compression + bad battery + underdrive pullies = missfire??? (Phil97SVT)
Low voltage inhibits the ability of the PCM to function properly. If you had an A4, you would notice that it's not shifting properly either.
Team Owner
Joined: Apr 2002
Posts: 43,370
Likes: 0
Re: High compression + bad battery + underdrive pullies = missfire??? (Phil97SVT)
Just get yourself an Optima Red Top and an MSD ignition with 8mm wires. That should take care of you. If not, throw in a better coil. I'm assuming that you have reprogrammed your computer already? Make sure it's all calibrated like it should be.
