Join Date: Aug 2002
Location: OverlandPark KS (Kansas City)
Let me help out here. What is the max timing? Well, the best way is to properly tune it on the dyno. Much like I do on the EFI conversions we do. The car must be steady state and when you are at your peak RPM for TQ increase the timing 1 degree at a time. When the TQ holds for the next couple of degree increase then drops the TQ at that MAX number you want to go back to the very fisrt number that did not change the TQ. This means you have reached the ideal timing for the max.
On EFI we do that for every KPA and every RPM cross. This guarantees you have properly (after AFRs are set in the same manner) tuned system.
If 21 is still showing the TQ increasing then stop, re-index and time the distributor and continue up to the number that provides them most TQ and call it a day. Might be 26, might not. I have seen to many tops pop or melt off a piston because a single number became religion.
Hope this helps.
94 3.6Turbo 6-speed AWD