Dynamometer Results & Comparisons - Near stock LS2 371rwhp/389rwtq




View Full Version : Near stock LS2 371rwhp/389rwtq


LS17000RPM
06-04-2012, 09:37 PM
Got my 05 GTO 4L65E dynoed and was surprised to see the numbers it put down. Mods in sig.

http://sphotos.xx.fbcdn.net/hphotos-ash3/181210_3906484151389_1633796029_n.jpg

Dyno Run Video

This was a dyno dynamics dyno. Dyno operator thought it might have a cheater cam in it but the car peaks at 5600-5800rpm for horsepower and falls off after 6000rpm. It did have 26 degrees of timing at WOT which indicates it might have a tune but the A/F was in the low 12's in the upper rpm and I can still feel the torque management is there.


jmilz28
06-05-2012, 02:19 PM
Throw a FAST intake and ARH long tubes on it, retune, and you will EASILY see over 400/400 with no downside. You may just have a factory freak on your hands, let it breathe!