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Just wondering what you guys are running for timing advance in your LQ4's? Its in a 01 2500HD with the 4L80E and 4.11 gears. The stock timing table looks pretty pathetic? Im planning on running 87 octane for the price and I do tow a small travel trailer during the summer. Just looking for advice on the Low and High rpm timing curves?? Thanks for any help!!:)
Ur not gonna get much more timing out of the engine with 87oct
Step up to 89 or mid grade and u'll extract a lot more.
There are conditions and tables that affect timing, so keep that in mind.
By simply modifying the iat vs timing table u can increase timing quite a bit, especially during summertime.
man i put the table in my truck last night from a lq9 escalade tune and holy the truck woke up. i pretty much coppied almost everything i could from the lq9 tune and only deleted a few torque management things and it is night and day, did not mess with the timing tables yet just stock for now so u should be able to run 89 at least on it, but its totally different, i would try that and see how u like it, it works dam good though