Here is the first in the line of GM and Ford cars ill be tuning this summer im going to post results of.
This one here is a bit of an enigma to us, but everyonce in a while you run accross wringers like this
This is a Before and after graph of an 06' M6 GTO i tuned last night. The owner just bought the car as is and wanted the tune gone through which appears to have been tweaked prior somwhere else. All we know is the car has a decent cam in it, ported factory 243 heads, long tube headers, catless midpipes into a STOCK catback and a FAST 102MM intake with vararam CAI.
This thing pretty much destroys anything ive ever seen from an LS2, but this car belted out 489RWHP and 441 tq! And it backed it up with a 487RWHP run. We have no idea if this is a stock bottom end car or not and it looks to be untouched??
All i did was polish up the exisiting tune, put in my own timing curve and leaned it out to about 12.5:1 AFR where it made its best power. Its a little blah below 3k, but a set of 3.90s in this thing would make it a tough street car as this thing just explodes and sets the tires into orbit in the first 3 gears above 4k.