GM Truck on Kill -- 919HP/880TQ 4.8L
03-02-2013, 08:02 PM
#1
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GM Truck on Kill -- 919HP/880TQ 4.8L Hey all, wanted to share some numbers my little red chevy with the little 4.8L did today. Very very happy with the power. Last time at the track with around 770HP truck went 10.17@134. Hope see 9s tomorrow, truck is 4580 pounds, still pulls a boat, a/c, full leather. I'm driving to Ohio from SC to see the family on Monday. 
Long live the LS!
Latest engine/setup.
4.8L with 111k
Untouched bottom end, stock non-ported heads.
Comp Dual 675 spring/Comp Pushrods
ARP studs, ls9 Gaskets
TBSS intake with stock 78mm TB
Speed Inc Tu1 cam 225/225 .581 .581 113+1
Dual Walbro 450
8an feed 127lb injectors at 58 base
Fuel lab 1-1 FP regulator
KB-Racing manifold/hot pipes/cold pipes.
BoostLab BW 475 w/billet 11 blade wheel, race cover
83/74 turbine 1.10 a/r, full 4" with Borla to rear bumper
CircleD and JakesPerformance for awesome 4l80E trans/convertor.
4 Pulls. 100% E85.
First was pig rich,17-18psi 755HP/721TQ
Next Less fuel more boost at 19psi 816/800TQ
Goal met! However, with so much left on the table, went with more boost at 22psi and no air filter. 877HP/822TQ
Lastly decided to go for 900 with a 35 wet shot on from 5.5-6.5, however some HPtuners issue had it come on and off up till 5.5, then on as requested. You can see it in the video with the red light being nitrous on. Looking into that but it bumped boost a little, ending with 919HP/880TQ
VIDEO:
All boost:
All Pulls
Long live the LS!Latest engine/setup.
4.8L with 111k
Untouched bottom end, stock non-ported heads.
Comp Dual 675 spring/Comp Pushrods
ARP studs, ls9 Gaskets
TBSS intake with stock 78mm TB
Speed Inc Tu1 cam 225/225 .581 .581 113+1
Dual Walbro 450
8an feed 127lb injectors at 58 base
Fuel lab 1-1 FP regulator
KB-Racing manifold/hot pipes/cold pipes.
BoostLab BW 475 w/billet 11 blade wheel, race cover
83/74 turbine 1.10 a/r, full 4" with Borla to rear bumper
CircleD and JakesPerformance for awesome 4l80E trans/convertor.
4 Pulls. 100% E85.
First was pig rich,17-18psi 755HP/721TQ
Next Less fuel more boost at 19psi 816/800TQ
Goal met! However, with so much left on the table, went with more boost at 22psi and no air filter. 877HP/822TQ
Lastly decided to go for 900 with a 35 wet shot on from 5.5-6.5, however some HPtuners issue had it come on and off up till 5.5, then on as requested. You can see it in the video with the red light being nitrous on. Looking into that but it bumped boost a little, ending with 919HP/880TQ
VIDEO:
All boost:
All Pulls
Last edited by foose04; 03-02-2013 at 08:08 PM.
03-03-2013, 01:23 AM
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Hey thanks guys!
Truck has 862's. I think the smallest/lowest flowing heads out there. Ahh well.
Intake Port Volume: 200cc
Exhaust Port Volume: 70cc
Intake Valve Diameter: 1.89 inches
Exhaust Valve Diameter: 1.55 inches
Truck has 862's. I think the smallest/lowest flowing heads out there. Ahh well.
Intake Port Volume: 200cc
Exhaust Port Volume: 70cc
Intake Valve Diameter: 1.89 inches
Exhaust Valve Diameter: 1.55 inches
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03-03-2013, 11:43 AM
#17
8 Second Club
dude this makes me so happy lol. i was shooting for 700 to the wheels but thought id have to change the heads for sure. great power and your truck looks absolutely killer.
