900 hp lq4
10-12-2012, 04:30 AM
#1
900 hp lq4 I didn't think it was a big deal or anything just thought id share..
I know most people do the dyno first but I ended up track testing the combo, then beating on it a couple years then dyno lol
Combo is my 2003 GMC 4x4 Z71 with KBRacing T4 kit with GT76T4 turbo.
-2005 lq4 factory GM short block
-Hand ported stock valve 317 heads
-Isky triple 12 cam
-Arp studs/LS9 gaskets.
-Under hood is 100% factory truck acc's including intake, tb, 1 bar map, and mafs lol...
Haven't decided if I'm going to pull it and upgrade the pistons, and rods or keep flogging it... Drove truck 1.5 hrs to dyno and back home, all pulls were thru full exh just how I race. 1st pull was right off the street on my dd street tune @15~16 psi, 91 0ct/meth inj. The rest of the pulls were at a dead even 20 psi of boost, 80/20 91 oct/112 oct mix, with meth. There was a slight amount of E85 mixed in the tank about 10%. It's a witches brew I know lol.. Computer on dyno was acting up so they couldn't get me the tq, and numbers are in mph vs RPM... Last pull I let out around 5800 RPM and prior pulls went to the 6800 Limiter. Tires were smoking a little on dyno as well.. I feel numbers were pretty accurate due to track times, and trap.
I know most people do the dyno first but I ended up track testing the combo, then beating on it a couple years then dyno lol Combo is my 2003 GMC 4x4 Z71 with KBRacing T4 kit with GT76T4 turbo.
-2005 lq4 factory GM short block
-Hand ported stock valve 317 heads
-Isky triple 12 cam
-Arp studs/LS9 gaskets.
-Under hood is 100% factory truck acc's including intake, tb, 1 bar map, and mafs lol...
Haven't decided if I'm going to pull it and upgrade the pistons, and rods or keep flogging it... Drove truck 1.5 hrs to dyno and back home, all pulls were thru full exh just how I race. 1st pull was right off the street on my dd street tune @15~16 psi, 91 0ct/meth inj. The rest of the pulls were at a dead even 20 psi of boost, 80/20 91 oct/112 oct mix, with meth. There was a slight amount of E85 mixed in the tank about 10%. It's a witches brew I know lol.. Computer on dyno was acting up so they couldn't get me the tq, and numbers are in mph vs RPM... Last pull I let out around 5800 RPM and prior pulls went to the 6800 Limiter. Tires were smoking a little on dyno as well.. I feel numbers were pretty accurate due to track times, and trap.
Last edited by stock48; 10-12-2012 at 04:37 AM.
10-12-2012, 06:45 AM
#3
I didn't think it was a big deal or anything just thought id share.. I know most people do the dyno first but I ended up track testing the combo, then beating on it a couple years then dyno lol
Combo is my 2003 GMC 4x4 Z71 with KBRacing T4 kit with GT76T4 turbo.
-2005 lq4 factory GM short block
-Hand ported stock valve 317 heads
-Isky triple 12 cam
-Arp studs/LS9 gaskets.
-Under hood is 100% factory truck acc's including intake, tb, 1 bar map, and mafs lol...
Haven't decided if I'm going to pull it and upgrade the pistons, and rods or keep flogging it... Drove truck 1.5 hrs to dyno and back home, all pulls were thru full exh just how I race. 1st pull was right off the street on my dd street tune @15~16 psi, 91 0ct/meth inj. The rest of the pulls were at a dead even 20 psi of boost, 80/20 91 oct/112 oct mix, with meth. There was a slight amount of E85 mixed in the tank about 10%. It's a witches brew I know lol.. Computer on dyno was acting up so they couldn't get me the tq, and numbers are in mph vs RPM... Last pull I let out around 5800 RPM and prior pulls went to the 6800 Limiter. Tires were smoking a little on dyno as well.. I feel numbers were pretty accurate due to track times, and trap.
I know most people do the dyno first but I ended up track testing the combo, then beating on it a couple years then dyno lol Combo is my 2003 GMC 4x4 Z71 with KBRacing T4 kit with GT76T4 turbo.
-2005 lq4 factory GM short block
-Hand ported stock valve 317 heads
-Isky triple 12 cam
-Arp studs/LS9 gaskets.
-Under hood is 100% factory truck acc's including intake, tb, 1 bar map, and mafs lol...
Haven't decided if I'm going to pull it and upgrade the pistons, and rods or keep flogging it... Drove truck 1.5 hrs to dyno and back home, all pulls were thru full exh just how I race. 1st pull was right off the street on my dd street tune @15~16 psi, 91 0ct/meth inj. The rest of the pulls were at a dead even 20 psi of boost, 80/20 91 oct/112 oct mix, with meth. There was a slight amount of E85 mixed in the tank about 10%. It's a witches brew I know lol.. Computer on dyno was acting up so they couldn't get me the tq, and numbers are in mph vs RPM... Last pull I let out around 5800 RPM and prior pulls went to the 6800 Limiter. Tires were smoking a little on dyno as well.. I feel numbers were pretty accurate due to track times, and trap.
10-12-2012, 08:48 AM
#5
I didn't think it was a big deal or anything just thought id share.. I know most people do the dyno first but I ended up track testing the combo, then beating on it a couple years then dyno lol
Combo is my 2003 GMC 4x4 Z71 with KBRacing T4 kit with GT76T4 turbo.
-2005 lq4 factory GM short block
-Hand ported stock valve 317 heads
-Isky triple 12 cam
-Arp studs/LS9 gaskets.
-Under hood is 100% factory truck acc's including intake, tb, 1 bar map, and mafs lol...
Haven't decided if I'm going to pull it and upgrade the pistons, and rods or keep flogging it... Drove truck 1.5 hrs to dyno and back home, all pulls were thru full exh just how I race. 1st pull was right off the street on my dd street tune @15~16 psi, 91 0ct/meth inj. The rest of the pulls were at a dead even 20 psi of boost, 80/20 91 oct/112 oct mix, with meth. There was a slight amount of E85 mixed in the tank about 10%. It's a witches brew I know lol.. Computer on dyno was acting up so they couldn't get me the tq, and numbers are in mph vs RPM... Last pull I let out around 5800 RPM and prior pulls went to the 6800 Limiter. Tires were smoking a little on dyno as well.. I feel numbers were pretty accurate due to track times, and trap.
I know most people do the dyno first but I ended up track testing the combo, then beating on it a couple years then dyno lol Combo is my 2003 GMC 4x4 Z71 with KBRacing T4 kit with GT76T4 turbo.
-2005 lq4 factory GM short block
-Hand ported stock valve 317 heads
-Isky triple 12 cam
-Arp studs/LS9 gaskets.
-Under hood is 100% factory truck acc's including intake, tb, 1 bar map, and mafs lol...
Haven't decided if I'm going to pull it and upgrade the pistons, and rods or keep flogging it... Drove truck 1.5 hrs to dyno and back home, all pulls were thru full exh just how I race. 1st pull was right off the street on my dd street tune @15~16 psi, 91 0ct/meth inj. The rest of the pulls were at a dead even 20 psi of boost, 80/20 91 oct/112 oct mix, with meth. There was a slight amount of E85 mixed in the tank about 10%. It's a witches brew I know lol.. Computer on dyno was acting up so they couldn't get me the tq, and numbers are in mph vs RPM... Last pull I let out around 5800 RPM and prior pulls went to the 6800 Limiter. Tires were smoking a little on dyno as well.. I feel numbers were pretty accurate due to track times, and trap.
Not bad for our little budget turbo. Glad it made some good numbers for you.
Trending Topics
10-12-2012, 09:01 PM
#9
Thanks for the good words guy's! There still a lot of power left in it, I was running a 10~12psi spring in the wg and 20psi is all it it will do with controller maxed out, it will make 22~24psi with the 14psi spring in there. I think with the higher psi spring, uncaping the exh at dp, and upgrading my little 3'' 600hp I/c it could pick up some decent power. Id also like to switch it over to E85 someday but it's hard being only one station within 30 miles, and the next one from that is 160 miles..
10-22-2012, 02:07 PM
#15
Staging Lane
iTrader: (1)
Join Date: Apr 2007
Location: Colorado Springs, CO.
Posts: 81
Likes: 0
Received 0 Likes
on
0 Posts
Very impressive! If you bring it back to Colorado, let's strap it and compare dynos.
Mustang vs Dyno Dynamics and our correction factor.
Mustang vs Dyno Dynamics and our correction factor.
Last edited by VegaJim; 10-22-2012 at 04:06 PM.
10-22-2012, 04:55 PM
#17
Thanks guy's! I have a forged 365 all ready to assemble for the truck just have been too busy this summer to work on truck. This thing just needs to hang in a little while longer...
Engine has been in my truck now for 2 yrs and has about 15K miles on it at 7-800hp level, and ran the 9.7 back in april with the 900+ hp tune up and has ~5k miles on it since at power levels in between. I ran the **** out of it out at the eagle field airpprd drags on 20+psi in 100*. + heat, ran the sand drags a couple times over the summer on 20psi, and a few street pulls. Thing seems to have a little vibration, and down on power since the eagle field drags back in may, (pinged on pump gas) but I haven't let up on it. It could very well have some short rods, just hope it makes it to colorado and back :/ . Wish me luck lol..
And Jim if I make it back there, and thru the race we'll strap it down and and see. If it blows up im gunna have to borrow your engine to get home
Engine has been in my truck now for 2 yrs and has about 15K miles on it at 7-800hp level, and ran the 9.7 back in april with the 900+ hp tune up and has ~5k miles on it since at power levels in between. I ran the **** out of it out at the eagle field airpprd drags on 20+psi in 100*. + heat, ran the sand drags a couple times over the summer on 20psi, and a few street pulls. Thing seems to have a little vibration, and down on power since the eagle field drags back in may, (pinged on pump gas) but I haven't let up on it. It could very well have some short rods, just hope it makes it to colorado and back :/ . Wish me luck lol..And Jim if I make it back there, and thru the race we'll strap it down and and see. If it blows up im gunna have to borrow your engine to get home
10-24-2012, 09:16 AM
#19
Teching In
Join Date: Aug 2009
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Hey stock, what did you have for transmission, rear and fuel setup?? I am going to do an extended cab build. I'm a young adult trying to do things on a budget so any help would be greatly appreciated! Thanks in advance..
