SLB LT1 makes 760whp with a P1X

KingLT1 · 11-01-2019, 03:27 PM

Brett @ PrayPerformance just finished up a stone stock long block LT1 P1x combo and it made some Killa power.

GreatWhiteLT · 11-01-2019, 04:21 PM

No pistons or anything?? I'm assuming the meth is helping keep the heat down significantly? I wonder if this is like a track only type setup, or if this could be street driven? If so this may be something I am interested in the future for. Still unbelievably awesome!

Brudda*Termite · 11-01-2019, 04:26 PM

Awesome, with 11 pounds!

TJay74 · 11-01-2019, 08:40 PM

Quote:

Originally Posted by GreatWhiteLT

No pistons or anything?? I'm assuming the meth is helping keep the heat down significantly? I wonder if this is like a track only type setup, or if this could be street driven? If so this may be something I am interested in the future for. Still unbelievably awesome!

Most Meth Inj systems are boost activated. I know on mine it didnt come online until 4 or 5 psi or so.

Whocares05050 · 11-01-2019, 09:15 PM

Arent there ring gap issues above 650 whp?

KingLT1 · 11-01-2019, 09:25 PM

Quote:

Originally Posted by GreatWhiteLT

No pistons or anything?? I'm assuming the meth is helping keep the heat down significantly? I wonder if this is like a track only type setup, or if this could be street driven? If so this may be something I am interested in the future for. Still unbelievably awesome!

Stock long block means No pistons or rods.

Drsagacity · 11-01-2019, 11:26 PM

That’s killer. Nice job. The P1x is a beast.

Curious, when running alky injection on this setup, what do you use? How much do you run through in a week, month?

I will start another thread, but curious about your experience on this setup.

TJay74 · 11-02-2019, 01:37 AM

Quote:

Originally Posted by Whocares05050

Arent there ring gap issues above 650 whp?

it really depends on the tune and how safe the car is tuned. The more timing a person tries to run while chasing a HP number the higher the cylinder temps and pressure end up being. Get the cylinder temps up and the pressure up and the rings gaps close up until they finally butt together and then that is how you lose a ring land on a piston.

Quote:

Originally Posted by Drsagacity

That’s killer. Nice job. The P1x is a beast.

Curious, when running alky injection on this setup, what do you use? How much do you run through in a week, month?

I will start another thread, but curious about your experience on this setup.

I ran VP racing M1 Ethanol in my car, the windshield washer tank was my tank. It is a 1g tank and I would have to fill it about once every 2 weeks.

laynlo15 · 11-02-2019, 07:16 AM

Good numbers for sure. But you have to remember who did the build. Pray has it figured out and seems to be able to always get some extra power that others may not. Great job Brett

danhr · 11-02-2019, 02:31 PM

Quote:

Originally Posted by Whocares05050

Arent there ring gap issues above 650 whp?

Some people like to party harder than others

wnta1ss · 11-03-2019, 05:25 AM

Quote:

Originally Posted by Whocares05050

Arent there ring gap issues above 650 whp?

Yes there are issues with ring gap in the LT1, but it's not as simple as '650whp'. Variances in what gaps you got from the factory install, variances in use of your car (like WOT for long periods, 20 minute road course sessions, or only short WOT applications of not more than a 1/4 mile), variances in tune, whether cooling methods are used like methanol injection and/or E85, etc will all factor in.

laynlo15 · 11-03-2019, 07:31 AM

1ss is right and I went there last year with too much boost, timing, etc. So we built a forged short block with lower compression and gapped the rings for boost as Manley recommended. Now we are in the in the mid 800s rwhp on about 15 psi so hopefully good to go on the short block.

95 imp · 11-03-2019, 08:19 AM

Still not convinced it is a ring gap issue based on the failure pics I've seen so far.
It's more of a detonation issue. Get the fueling/octane right, and lo and behold, the engine stays together.

DapperDan · 11-15-2019, 09:30 PM

I hear this car went 9.50s WOW!

11-01-2019, 03:27 PM	#1
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,799	SLB LT1 makes 760whp with a P1X Brett @ PrayPerformance just finished up a stone stock long block LT1 P1x combo and it made some Killa power. Attached Images __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

11-01-2019, 04:26 PM	#3
Brudda*Termite Drives: 2017 Camaro 2SS Join Date: Mar 2019 Location: Lakeland, Florida Posts: 416	Awesome, with 11 pounds! __________________ Gary 2017 2SS A8 White, Bolt-Ons, Prayed Upon

11-01-2019, 11:26 PM	#7
Drsagacity Drives: 2017 Camaro 2SS Nightfall Gray vert Join Date: Jan 2018 Location: Swansea, IL Posts: 1,219	That’s killer. Nice job. The P1x is a beast. Curious, when running alky injection on this setup, what do you use? How much do you run through in a week, month? I will start another thread, but curious about your experience on this setup. __________________ 2017 Camaro 2SS vert - Nightfall Gray Magnuson Heartbeat SC - Tuned by JRE Racing 776whp/745wtq (12psi) 2018 Corvette Z06 vert- Black To be tuned by JRE Racing TBD performance

11-02-2019, 07:16 AM	#9
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Good numbers for sure. But you have to remember who did the build. Pray has it figured out and seems to be able to always get some extra power that others may not. Great job Brett __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

11-03-2019, 07:31 AM	#12
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	1ss is right and I went there last year with too much boost, timing, etc. So we built a forged short block with lower compression and gapped the rings for boost as Manley recommended. Now we are in the in the mid 800s rwhp on about 15 psi so hopefully good to go on the short block. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

11-01-2019, 04:21 PM	#2
GreatWhiteLT Drives: 2016 Silver Ice Metallic SS Join Date: May 2017 Location: South Jersey Posts: 196	No pistons or anything?? I'm assuming the meth is helping keep the heat down significantly? I wonder if this is like a track only type setup, or if this could be street driven? If so this may be something I am interested in the future for. Still unbelievably awesome!

11-01-2019, 09:15 PM	#5
Whocares05050 Drives: 2018 Camaro SS 1LE Join Date: Oct 2018 Location: Treasure Coast, FL Posts: 384	Arent there ring gap issues above 650 whp?

11-03-2019, 08:19 AM	#13
95 imp Dumb Ass Deluxe Drives: A Tricked Out Mountain Bike Join Date: Jun 2019 Location: Arizona Posts: 1,959	Still not convinced it is a ring gap issue based on the failure pics I've seen so far. It's more of a detonation issue. Get the fueling/octane right, and lo and behold, the engine stays together.

11-15-2019, 09:30 PM	#14
DapperDan Drives: 2017 1SS A8 Nightfall Gray Join Date: Feb 2017 Location: Maryland Posts: 331	I hear this car went 9.50s WOW! __________________

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