I have had a ton of questions asking for RWHP #'s, it is not exactly an easy task to dyno a 3.08 rear gear equipped vehicle (167mph Wheel Speed) in fear of damaging the dyno from a tire blowing out to a driveshaft failure, anything is possible at those speeds. Anyways, I did have it dyno'd this afternoon and she laid down an impressive 506rwhp thru an unlocked TH350, 12psi Boost, 14.5 Deg Timing, 11.3-11.5 AFR. This was done in 2nd gear and not 3rd. Typically loose around 5-10% when performing a dyno in 2nd gear opposed to a 1:1 ratio. Almost too safe of a tune as it picked up 56rwhp going from 12 deg timing to 14.5. Buuuuut I drove it 133 miles to the dyno and wanted to drive it back. No use in spitting chicken bones on the dyno trying to get higher #'s, plenty plenty fast at this level.

Anyways thought I would share, enjoy the videos!

1989 Twin Turbo 5.3 Dyno Pull 506rwhp 12psi 14 Deg Timing - YouTube

1989 Twin Turbo 5.3 Dyno 506rwhp 12psi 14.5 deg timing th350 3.08 gear - YouTube

1989 Twin Turbo 5.3 1st and 2nd Gear Rolling into 12psi 506rwhp - YouTube

 

Pretty sick man! truck sounds good

 

awesome it sounds really good