[juicebox119]

i just got my diablo tuner the other day. i did the performance tune, then adjusted the shift pressure and shift points, and some other lil adjustments. but my question is what does spark advance do and how should it be adjusted? Just by doing the base tune and adjusting some little things it woke my car up alot

[05horse]

well if you dont have a dyno, leave that alone

[juicebox119]

so what does it do exactly?

[05horse]

advances or retards spark


spark to early loss of power anddamage can occur tp late, back fire and gas in exaust.... lost a cat that way

[shinerstang]

It is not suggested that you adjust spark or WOT fuel unless you have the knowledge.....

[juicebox119]

alright thanks, im glad i asked before i starting messing with it, any other tips on tuning

[05horse]

really nothing to it. get it set and leave it alone not much u can do without a wideband and a dyno....


set ur idle drive idle n and gear ratio thats about it... and shift points if your an auto

[juicebox119]

its an auto, and is it better to set the torque modulation to 100% or stock? And i bumped up the shift pressure a little bit so i could get a little better shifting feel. it made it feel stronger during each shift.