*RESULTS* 402/Livernois L92s/Patrick G cam
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just got my car back yesterday after getting tuned by Dan Millen at Livernois. here is my setup
402ci LS2 shortblock built by Canadian Performance
Compstar crank and rods
Wiseco -8cc Pistons
11.14-1 compression
Heads are Livernois stage 3 L92s
240/252 .650/.661 114+3 comp cam speced out by Patrick G
stock L76 intake
90mm throttle body, stock mass air meter
50lb injectors
1 3/4 hooker headers, TSP true duals
numbers were 505rwhp 474rwt
i happy as hell considering that this was done with 1 3/4 inch primaries, stock intake, mass air still on, no underdrive pulley or EWP. motor was built for a lot of spray too. this was through a 6 speed with a poor little 10 bolt.
im still waiting to get my graph back, probably monday, then ill post it up.
power i think peaked around 6300ish, seems like this cam should pull power a little higher, im happy that i hit the 500 mark with the setup it has right now
402ci LS2 shortblock built by Canadian Performance
Compstar crank and rods
Wiseco -8cc Pistons
11.14-1 compression
Heads are Livernois stage 3 L92s
240/252 .650/.661 114+3 comp cam speced out by Patrick G
stock L76 intake
90mm throttle body, stock mass air meter
50lb injectors
1 3/4 hooker headers, TSP true duals
numbers were 505rwhp 474rwt
i happy as hell considering that this was done with 1 3/4 inch primaries, stock intake, mass air still on, no underdrive pulley or EWP. motor was built for a lot of spray too. this was through a 6 speed with a poor little 10 bolt.
im still waiting to get my graph back, probably monday, then ill post it up.
power i think peaked around 6300ish, seems like this cam should pull power a little higher, im happy that i hit the 500 mark with the setup it has right now
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Last edited by JDP; 08-27-2007 at 12:12 AM.
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thanks guys,
over the winter i want to swap over to 1 7/8 primaries, 2 inch ones are sweet but a little overkill for a little 402, probably do an underdrive pulley, go speed density and pray somebody comes out with an intake manifold.
9 inch is next on the list though
over the winter i want to swap over to 1 7/8 primaries, 2 inch ones are sweet but a little overkill for a little 402, probably do an underdrive pulley, go speed density and pray somebody comes out with an intake manifold.
9 inch is next on the list though
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im guessing the intake is whats holding them back, the heads can only flow as much as the stock l76 intake will let them.
plus i think ill pick up a decent amount with larger headers
plus i think ill pick up a decent amount with larger headers
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Originally Posted by JL ws-6
I am sure it will pick up with the bigger headers. I am running a 402 myself, and am probably going to get a set of the 2 inch primary kooks over the winter.
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Justin, great results, especially considering all the power mods you still have left to do.
Larger headers (big gains here)
Ported intake manifold (another biggie)
UD Pulley
Larger MAF or no MAF
Electric water pump
Shaft mounted rockers
The fact that you exceeded 500 rwhp so easily speaks volumes of how well the L92 heads work. How's the driveability of the car right now? Can't wait to hear about the power once you put the big shot of spray on it.
Larger headers (big gains here)
Ported intake manifold (another biggie)
UD Pulley
Larger MAF or no MAF
Electric water pump
Shaft mounted rockers
The fact that you exceeded 500 rwhp so easily speaks volumes of how well the L92 heads work. How's the driveability of the car right now? Can't wait to hear about the power once you put the big shot of spray on it.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
![](https://ls1tech.com/forums/signaturepics/sigpic210_1.gif)
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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Originally Posted by Patrick G
Justin, great results, especially considering all the power mods you still have left to do.
Larger headers (big gains here)
Ported intake manifold (another biggie)
UD Pulley
Larger MAF or no MAF
Electric water pump
Shaft mounted rockers
The fact that you exceeded 500 rwhp so easily speaks volumes of how well the L92 heads work. How's the driveability of the car right now? Can't wait to hear about the power once you put the big shot of spray on it.![Devil](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_devil.gif)
Larger headers (big gains here)
Ported intake manifold (another biggie)
UD Pulley
Larger MAF or no MAF
Electric water pump
Shaft mounted rockers
The fact that you exceeded 500 rwhp so easily speaks volumes of how well the L92 heads work. How's the driveability of the car right now? Can't wait to hear about the power once you put the big shot of spray on it.
![Devil](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_devil.gif)
thanks for the cam Patrick
just have to pray my 10 bolt will last me untill i get a 9 inch in there, im going to do the rest of the mods before i spray it. but it will be there one day
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I can also state Livernoi's dyno is pretty conservative, I was down there when a car drove straight to us from a run on another shops mustang dyno. It made 440 on that mustang dyno, it made 382 on their dynojet. Dan assured me that the dynojet is recalibrated very often (he said more often then any other shop he ever spoke with) so it had to be an issue w/ the other shop's mustang dyno. My point is that every body's dyno is different, alot of people that make unbeleiveable numbers are usually unable to back it up on other people's dyno's.
505 is about right for most stroker l92's that have come through @ Livernois (according to Dan) whether they spec'd them or another shop spec'd the parts. so far I think 520ish is the most they have seen, and surprisingly enough it was on a combo that had less compression the his, and a smaller cam. My point on this is its clear the l92 combo's are in their infancy, just like ls1 stuff was 5 or 6 years ago. There are still people coming up with new ls1 combo's that work, and its 10 years after the engine was released. Just imagine where l92 stuff will be in 9 more years
505 is about right for most stroker l92's that have come through @ Livernois (according to Dan) whether they spec'd them or another shop spec'd the parts. so far I think 520ish is the most they have seen, and surprisingly enough it was on a combo that had less compression the his, and a smaller cam. My point on this is its clear the l92 combo's are in their infancy, just like ls1 stuff was 5 or 6 years ago. There are still people coming up with new ls1 combo's that work, and its 10 years after the engine was released. Just imagine where l92 stuff will be in 9 more years
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
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Hey bro, I haven't heard from you in a long time. I sent you a PM. CONGRATS on all the horsepower your new engine made. We didn't get to run last year, and I kept missing you at the 50's McDonalds. I still owe you a ride. By the sounds of the power you are making I can't wait to go for a ride. Actually a bit afraid to run you. Your new motor sounds like a beast. Don't worry about that 10 bolt, she'll last until you race from a dig. 474 rwtq is a lot of grunt. So get ahold of me, I got the itch to run bro.
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Originally Posted by 88ls1blazer
I can also state Livernoi's dyno is pretty conservative, I was down there when a car drove straight to us from a run on another shops mustang dyno. It made 440 on that mustang dyno, it made 382 on their dynojet. Dan assured me that the dynojet is recalibrated very often (he said more often then any other shop he ever spoke with) so it had to be an issue w/ the other shop's mustang dyno. My point is that every body's dyno is different, alot of people that make unbeleiveable numbers are usually unable to back it up on other people's dyno's.
505 is about right for most stroker l92's that have come through @ Livernois (according to Dan) whether they spec'd them or another shop spec'd the parts. so far I think 520ish is the most they have seen, and surprisingly enough it was on a combo that had less compression the his, and a smaller cam. My point on this is its clear the l92 combo's are in their infancy, just like ls1 stuff was 5 or 6 years ago. There are still people coming up with new ls1 combo's that work, and its 10 years after the engine was released. Just imagine where l92 stuff will be in 9 more years![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
505 is about right for most stroker l92's that have come through @ Livernois (according to Dan) whether they spec'd them or another shop spec'd the parts. so far I think 520ish is the most they have seen, and surprisingly enough it was on a combo that had less compression the his, and a smaller cam. My point on this is its clear the l92 combo's are in their infancy, just like ls1 stuff was 5 or 6 years ago. There are still people coming up with new ls1 combo's that work, and its 10 years after the engine was released. Just imagine where l92 stuff will be in 9 more years
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
i just cant wait for somebody to come out with a damn intake for these heads, because i know these stock l76 intakes are holding these heads back.