Got my car dynoed yesterday. I pulled pretty impressive numbers although they had to shut my car down on all 4 runs before redline because it was pinging pretty bad. Here's one of the runs where the detonation is pretty audible in the higher rpms. http://www.u.arizona.edu/~jtnelson/vids/ping.avi Also, here's a chart of my A/F ratio. These weren't the same runs but just to give you some kind of idea.

 

are all the mods u have on it listed in your sig?


if so that is very odd


u didnt mess with the maf or anything?

 

Pull that IAT module. It bumps the timing way up. If the motor and air are warm it will cause the problem. Heck that's why you use an IAT module and the homemade version is called "the timing tricker"
It's always a good idea to research your mods to know what they do and how they do it.

 

Yeah, I pulled the module out after the runs but I was wondering if there was anything else I could do aside from getting LS1 edit or a MAFT.

 

ttt

 

I never understood the IAT mod... sure it'll lean out the mixture, but if its warm enough.. it will confuse the crap out of your computer. It thinks the air is 40 degrees (or whatever) instead of 105 or whatever if its hot outside.. just not good.