hey everyone, I recently purchased a Predator Tuner, I installed the tune on my car this morning. Here is my problem, I am running 93 octane from Shell and when i am at WOT, im getting a sound like bad gas or it's missing. My question is: being that my car is pretty stock, should I advance the timing at WOT or decrease it to get rid of this sound? And those of you that have done it, what was a good advance(-/+) number that you used?

Thanks,
Landon

 

if your getting a ping or what would sound like some rocks rattling around in your engine at the top end i would definitly pull timing and not add it.

 

I agree!

 

what are your mods?

a ported maf will cause pinging with a canned tune.

Ryan

 

i have a K&N & lid, magnaflow catback exhaust, y-pipe. I havent touched the timing, its the performance tune i got from the predator. I added +4 richer tonight and drove it, and it was not making the noise but it was raining and sleeting so I couldnt really get on it. If it still makes the noise tommorow, Do you suggest just pulling timing down a notch?

 

Remove the predator tune.. problem persist? If not then it's definetly the tune...

it's probably adding too much timing and reducing PE by too much...

the +4 to fueling is good (to fix the lean condition... though not sure what +4 in a predator tune means)

if it's still making the noise DEFINETLY pull timing... though w/out a scanner it's hard to tell what's going on....

 

if this helps it says stock its pulling like 28.5 on the spark meter...does that help you?