View Full Version : Full Size Sierra 72mm 19psi/35 nitrous 10.52@132

12-06-2011, 04:27 PM
Bested my own record over the weekend. Previous best was I made 4 10.7x run and one 10.67@127, no nitrous 19psi dropping to 17 (72mm maxed out) removed passenger seat, sub, and headlight.

This weekend ran same boost but a .034 nitrous first, .042, then .034 last run. (out of fuel so had to swap to the smaller shot again) Nothing removed, full street trim to include towing package (4400 weight) Last pass eng temps was over 200 so it pulled timing on the big end.

Engine is 4.8l, headstuds/gaskets, valve springs, ls6 cam, e85

Drove 5 hours round trip and made it home! She's a tough rig! :usa:

GMC RST Turbo w/Nitrous - 4.8 Record 2011 - YouTube (

12-07-2011, 11:30 PM
Bad ass truck for sure.

12-08-2011, 01:03 PM
congrats man cant wait untill you upgrade to an 88mm or bigger with a new motor

12-08-2011, 01:07 PM
That is awesome!

the crusty pirate
12-08-2011, 01:19 PM
sick as hell. i love the bogies.

12-08-2011, 07:21 PM
Cool Truck. Congrats on the new best.

12-09-2011, 01:21 AM
Hey thanks guys!! Not to shabby on the little mota.