Last Thursday I took the truck down to Gainesville, FL to get it dyno tuned by Jeremy Formato. Had a problem with the belt slipping so it was only getting 11psi of boost. Belt is shot so I got a new one on the way. Gonna have to take it back down when the new belt comes in but heres a video and some pics of the dyno sheets (dont have a scanner so theyre kinda crappy)










Highest numbers on the graph were 554hp 509tq. You can see there at the end where the belt catches. I was pretty bummed about not being able to get to 15psi. Jeremy did a great job with the tune and was a great guy to deal with. Explained to me everything he was doing as he was doing it and answered all my questions. I would recommend him to anyone! Im ready to get the new belt on and see what it will really put down.

 

I thought it made more power when Pat had it. No sloutch by any means though.

 

Well its short 4psi......

 

It did but the belt is stretched out. Tried tightening it with the sliding idler but even with it all the way tight the belt still had a lot of slack in it

 

I posted this in the for sale thread, but was not sure if you saw it...


Dang Mike, nice buy! BTW, December 15th is the truck shootout in Valdosta. It is your duty to attend. I can only imagine at 15 psi you have no traction.When you go to the track, hit me up and I'll take my chances against ya. I would like to see her run.
912 270 4829

 

I don't see any reason I wouldn't go! You wanna embarrass me in front of a big crowd huh Rodney?

 

NO BRO! It aint like that at all. I came off all wrong if that is the impression you got. I am happy to have such a fast GMC around here. We don't have to line up until our slips get close and it would be fun. That is a strong truck you have with a lot of potential. Happy for you man. I have some tires you could make a pass or two on if you have drums or grinded calipers on the rear.

 

Haha no man I was just messin with ya. Matt told me you're the man to beat though. I don't care if I'm the fastest as long as I'm not the slowest!

 

Decent #'s for the issues. You have a gorgeous truck man!

 

thanks man! i was hoping for better, cant believe a damn $30 belt was the reason for low numbers. got 2 new belts coming just incase! now i gotta figure out what im gonna do to this thing next to up the power...