Red got strapped to the rollers today to do some tuning/testing. Have to say,Truck performed just as GM intended (poor thing) 10+ 600HP pulls to 150-160 MPH in third. Only real issue was I had some issues loading the dyno and could only make 16.5psi on boost only. I know it's a load problem though as I can make 20-21psi on the street/track. In any case, that 16.5psi made a best of 627HP/650HP.

Next up was a 35 dry shot at 750psi bottle pressure. Truck picked up boost to 18psi and made 699HP/720TQ. So close to 700, I wanted it. So we heated the bottle up to 950-1000psi. Hit it again, bingo 730HP/747TQ. She likes the cold air!

Love the TQ, how about 747TQ at 4800 on a 293ci engine? What!??

Basic setup is:

4.8L with....
KB racing 76mm Kit, with a Extreme Turbo Systems intercooler
02 LS6 Cam/PAC 1518 Valve springs
Ls9 Gaskets/ARP studs
E85/80lb injectors/2 Walbro 400 with BAP at 17.5 volts
Dry 35 Shot
JakesPerformance 4l80/Circle D tc


Good times!



GMC RST 730HP/747TQ - YouTube

 

Oh Yeah good times for sure!!!

Hi Five bro!!! Killer killer Numbers damn. The lil 4.8 is an angry beast huh!

 

damn thats badass

 

Damn..Thats alot of power from under 5 liters! Congrats

 

Damnit Boy!! Thats just nasty

 

Very nice indeed!

What brand injectors?

 

I will say it here too rob. Very nice sir. I hope your truck had a nice talk with the blazer while it was at hhp today and told it what to look forward too lol

 

nice run man truck is a beast

 

wow,that's badass man