I haven't messed with timing split a whole lot. I know the closer together the more power, but on the haltech I have heard there is a chance if they are too close together the trailing can fire before the leading, causing a blown motor. There are some ecu's like autronic if i'm not mistaken that have them firing at the same time, and there is no chance for error. The difference in power between firing at the same time and slightly apart is still a mystery to me, never seen any real numbers.

 

thats kinda the reason i bring this up, i have no choice but to run with 0 split and it seems like it wants a lot less total advance than you guys are running



mike

 

How much advance are you running Mike?

 

its like 24 degrees in vacuum and like 10-12 at about 10psi. i have no timing split though



mike

 

Wow that is low, considering I run 14 degrees after 15psi. Does the car start to break up or something? What kind of igntion system do you have?

 

i've got 3 fd leading coils, i'm thinking maybe its not good enough under load. its happy in vacuum though



mike

 

Hook up an ignition amp like the hks twin power, that might solve the problem.

 

ask boostn7 he has played with the timing split alot

 

When your running no split you will notice timing doesn't like to be to far advanced. I would run about 2~5 degrees at 10 psi boost. Maybe even less depending on your fuel. DON'T RUN 15 degrees timing with no split!!!

 

yeah, its running like 6-8



mike