Be forwarned! 1150 Horsepower LS1 Inside!
Originally Posted by Reckless
had in 65# injectors but they were at 100% duty near 1000hp and 60psi of base fuel pressure. Switching to 160# allowed a drop of FP to 40psi and only ran the injectors at 65-70% at 1150hp.
Teching In
Joined: Aug 2003
Posts: 20
Likes: 0
From: Lebanon, PA
I'm not all about dynos and neither are all supras and 03 cobras...another supra just went 9.4@157 with a 2.1 60' on drag radials haha. Thing should run 8s very soon. RWHP is a barometer and used strickly for R&D.
Greg
Greg
Thread Starter
Joined: Nov 2001
Posts: 10,060
Likes: 33
From: Canton, GA
Andy...not sure if there is a way to calculate that? We were just trying and observing. There is likely a way to estimate that, but I don't know what it is off-hand.
The duty cycle on a 95 lb hr @ 1150 hp should fall around 75% at the rated fuel pressure. I am basing this on a .5 brake, we ran at around .65...
Kurt
Kurt
Originally Posted by andy98Z
So what % duty cycle would you be at with 95#s and what FP?
Originally Posted by Reckless
Traveled up to Wheel to Wheel today with Mike Brown and Steve Turley. They are putting together a 1996 Formula drag car. Their intended target is the Top Gun class with a 3100 pound weight. I think they will have a good chance.
Here is what I know, and Mike, Steve, and/or Kurt may jump in to add-on:
- Stock LS1 block with 382 stroker (Callies 4" crank and Callies LS1 rods - JE Pistons) - I don't know CR ???
- CNC'd Lingenfelter LS1 heads, o-ringed with 1998 graphite style gaskets (may be LS6 head castings, not sure)
- Precision T-88
- ATI dampener, JWIS chain, Jesel adjustable rockers, Comp duals, hydro cam (specs are
)
- LS6 intake, stock throttle body, 160-pound injectors, custom rails with dual feed, Aeromotive FPR, racing plugs
- This is cool too....stock 6.0L truck manifolds with 2.5" hot stainless tubing
- HKS Gate and ATI Race blowoff
- EFI is handled by the new "BIG STUFF" developed by the Meaney brothers and John Meaney was there doing the tuning
The setup made pretty near 1000fwhp with no spring pressure on the gate (about 18-19psi). With a little turning of the screw up to 23psi, it netted 1150fwhp and 1006fwtq. The heads never once lifted and there was no weeping either. Rock solid!
We all felt there was more in the setup, but didn't see any reason to push it any further outside the car. Mike and Steve will work on getting the combo into the car over the next few weeks and try to get some seat-time before the N/S race.
As far as I know, this is the most power and standard LS1 block has made (i.e. not iron and not C5R). "Way to go" to all involved!
Here's a video of the final pull for ya! Please right click and save to you computer so the COFBA server does not get bogged down!
http://www.cofba.org/users/reckless/1150hp.mpg
Here is what I know, and Mike, Steve, and/or Kurt may jump in to add-on:
- Stock LS1 block with 382 stroker (Callies 4" crank and Callies LS1 rods - JE Pistons) - I don't know CR ???
- CNC'd Lingenfelter LS1 heads, o-ringed with 1998 graphite style gaskets (may be LS6 head castings, not sure)
- Precision T-88
- ATI dampener, JWIS chain, Jesel adjustable rockers, Comp duals, hydro cam (specs are
)- LS6 intake, stock throttle body, 160-pound injectors, custom rails with dual feed, Aeromotive FPR, racing plugs
- This is cool too....stock 6.0L truck manifolds with 2.5" hot stainless tubing
- HKS Gate and ATI Race blowoff
- EFI is handled by the new "BIG STUFF" developed by the Meaney brothers and John Meaney was there doing the tuning
The setup made pretty near 1000fwhp with no spring pressure on the gate (about 18-19psi). With a little turning of the screw up to 23psi, it netted 1150fwhp and 1006fwtq. The heads never once lifted and there was no weeping either. Rock solid!
We all felt there was more in the setup, but didn't see any reason to push it any further outside the car. Mike and Steve will work on getting the combo into the car over the next few weeks and try to get some seat-time before the N/S race.
As far as I know, this is the most power and standard LS1 block has made (i.e. not iron and not C5R). "Way to go" to all involved!
Here's a video of the final pull for ya! Please right click and save to you computer so the COFBA server does not get bogged down!
http://www.cofba.org/users/reckless/1150hp.mpg
aaron.spangler@pittsburgh.af.mil
all i see is red x
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