Idle timing
Thread Starter
TECH Resident
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
Idle timing I am curious where you guys have your idle timing at...from 0 to 1000 rpm?? I have a good starting point for the rest but some guys are saying they have 20+ degrees of initial. I have a hard time believing the motor turns over very well when you get that much timing (or more) when cranking 0 to ??? rpms. On the traditional SBC I use to only run about 12 degrees max (cranking/initial).
I searched "timing curve".
This thread has some pertinent info on idle timing.
https://ls1tech.com/forums/conversio...l?ref=esp-link
This thread has some pertinent info on idle timing.
https://ls1tech.com/forums/conversio...l?ref=esp-link
Thread Starter
TECH Resident
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
Thanks. 
I have done searches before and don't remember that thread. There was some good info in there. I have seen posts before where guys say they are running 20+ degrees initial and I guess I did not understand if that was from 0 to 1000 (approx) or if they have to start out lower at 0 and ramp up to 20 at 1000 (approx)?? I was just looking for some clarification.
I have done searches before and don't remember that thread. There was some good info in there. I have seen posts before where guys say they are running 20+ degrees initial and I guess I did not understand if that was from 0 to 1000 (approx) or if they have to start out lower at 0 and ramp up to 20 at 1000 (approx)?? I was just looking for some clarification. 12 degrees from 0-500rpm
600-1000rpm is 24 degrees
1100-2900 is 38 degrees for better a/f ratio under cruise conditions, it really helped
3000-7400 is 34 degrees
converter is 3700 so it will flash past the lower rpm range so the higher timing is under a low load condition
600-1000rpm is 24 degrees
1100-2900 is 38 degrees for better a/f ratio under cruise conditions, it really helped
3000-7400 is 34 degrees
converter is 3700 so it will flash past the lower rpm range so the higher timing is under a low load condition
Trending Topics
12 degrees from 0-500rpm
600-1000rpm is 24 degrees
1100-2900 is 38 degrees for better a/f ratio under cruise conditions, it really helped
3000-7400 is 34 degrees
converter is 3700 so it will flash past the lower rpm range so the higher timing is under a low load condition
600-1000rpm is 24 degrees
1100-2900 is 38 degrees for better a/f ratio under cruise conditions, it really helped
3000-7400 is 34 degrees
converter is 3700 so it will flash past the lower rpm range so the higher timing is under a low load condition
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
TECH Resident
Joined: Sep 2009
Posts: 859
Likes: 2
From: Frozen Tundra, WI
no map presently, but I will be adding a few degrees here or there in the 35-55mph range on the map sensor under light throttle to clean it up and get a little better mileage as well. How much I won't know until next spring, car is getting a lot done to it this winter 
I run all my stuff at 40 at idle. Just keep advancing it till the idel is the best.
Then I pull a little out above idle for cruse but leave most in it. The map pulls it out once it sees load.
Tim
Then I pull a little out above idle for cruse but leave most in it. The map pulls it out once it sees load.
Tim
