spark advance on diablo sport

[slow3gt]

last night i decided to advance the spark with my diablo sport tuner and make a pass on the drag strip i noticed that the car idled rougher after i advanced the spark it did seem more powerful though is the rough idle normal? i took it back down and it idles fine now minus some shake from the cams

 

[propellerhead]

Weird. I'd test that out again. The Predator only adjusts WOT timing. It shouldn't affect idle.

 

[SigmaPride]

You may have just experienced the car readjusting with the idle since you just flashed it. Mine will idle a little off for a day or so after I flash it. As said before, though, the timing adjustment is only at WOT. Esp since you have cams you may notice more.

 

[slow3gt]

yea i guess thats right the computer just may need to get used to it after being reflashed i noticed that by adjusting the WOT spark the spark will be higher at idle on the data log mine read like 20deg at 6% advance at idle maybe ive just misread it but i thougth it adjusted it all over by adjust it at WOT

 

[RoadconeTuning]

id do a before/after test w/ the spark but im to lazy to wait for it to reflash the ecu twice then go in and datalog each one...