Put the truck on the dyno yesterday a came out with some pretty interesting results. First off my truck is a 2011 Sierra ext cab with the 5.3 6 speed 4x4 and 3.08 gears. Only mods are tune, K&N drop in filter, a 3 1/2 cutout right before a factory 6.2 catback and last a Nitrous Outlet 90mm plate wet kit with 100 shot pills. Did 2 runs a motor pass and a nitrous pass just to see were the truck was at. Oh and the dyno was a dynomite dynomometer at 90-95 degrees outside and in 3rd to not throw a driveshaft. All motor truck put down 308.5 hp 323 tq. On the nitrous pass it put down 407.1 hp and 428 tq. Not to bad I really wasnt expecting to put down over 300 on the motor pass I was pretty surprised. Ill try and get the dyno sheets up later.

Motor pass.
http://s223.photobucket.com/albums/d...t=e6e08d03.mp4

Nitrous pass.
http://s223.photobucket.com/albums/d...t=a0c32c20.mp4

Also went out last night and tried a few AWD nitrous launches... gotta say they felt pretty damn good put my friend into the seat and his phone into my back window! lol One of them my traction light kept blinking all threw first gear! Now for some more mods and that 500 hp mark!

 

Nice #'s for sure!!! Where did you get on the rollers at?? Victoria?

 

 

Thanks man Nah a corvette shop in Corpus

 

But it was a dynamite dyno another shop here in Corpus is setting up a mustang dyno.

 

man those 6speeds arnt no koke . great numbers man

 

Thanks man trust me I was very surprised to hit over 300 all motor. The 5.3s are only rated at 315hp so when I put 308hp to the wheels with only a tune and a cutout I was all smiles lol really wasn't expecting it.

 

Thats awesome!

Who makes the best engines out there????

GM !!!!!

 

Nice job

....but I hate this trend of dyno operators plotting runs with a time axis, how utterly useless.

 

Nice numbers man! Whats next on the mod list?