382ci dyno #s - 505rwhp/478rwtq
#21
LS1 Tech Administrator
iTrader: (14)
Jason, a lot of guys building 408s need to take a few notes on your cam choice because you make killer power and torque in the mid-range and up high.
Notice: IVC at 47.5 degrees ABDC, dynamic compression over 8.5:1, and overlap biased to the intake side of TDC. All textbook examples of how to make big power with a smaller motor (on a college student's budget). Just think how much power you'd be making with some of those high $ aftermarket head castings!
Notice: IVC at 47.5 degrees ABDC, dynamic compression over 8.5:1, and overlap biased to the intake side of TDC. All textbook examples of how to make big power with a smaller motor (on a college student's budget). Just think how much power you'd be making with some of those high $ aftermarket head castings!
__________________
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.
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.
#22
FormerVendor
iTrader: (1)
First off I want to say killer numbers Jason. Once again you have showed you can make great numbers without spending tons of money. Its all in the setup.
Second I can say I have heard and taken a ride in his car in person and it sounds really good. It has a little rump to it but over all it sounds pretty tame, but really really quick.
Congrats on finally getting it running, lol.
John
Second I can say I have heard and taken a ride in his car in person and it sounds really good. It has a little rump to it but over all it sounds pretty tame, but really really quick.
Congrats on finally getting it running, lol.
John
#24
I can shift faster than you.
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Originally Posted by _HAVOC_
First of all congrats! thats Awesome to see this because its pretty simular to the set up im doing right now. Wondering if you got a chance to play with the tune at all, was curious if it would yield even better results.
I'm also curious as to why you had to use 7.350" pushrods. was it due to milling a certain amount off of the heads, if so how much did you take off.
I'm also curious as to why you had to use 7.350" pushrods. was it due to milling a certain amount off of the heads, if so how much did you take off.
The heads were only milled .005" for a cleanup pass, but the block was decked .020" to get the pistons back out the hole. For some reason Mahle's compression height is about .015" too short on their 4.00" stroke pistons and this left the pistons .013" in the hole. Lifter preload is .070" on the intake and .075" on the exhaust. I'm using Comp OEM replacement lifters.
Originally Posted by 98cobrakillata
Is there any vids of the car idle?
Originally Posted by Patrick G
Jason, a lot of guys building 408s need to take a few notes on your cam choice because you make killer power and torque in the mid-range and up high.
Notice: IVC at 47.5 degrees ABDC, dynamic compression over 8.5:1, and overlap biased to the intake side of TDC. All textbook examples of how to make big power with a smaller motor (on a college student's budget). Just think how much power you'd be making with some of those high $ aftermarket head castings!
Notice: IVC at 47.5 degrees ABDC, dynamic compression over 8.5:1, and overlap biased to the intake side of TDC. All textbook examples of how to make big power with a smaller motor (on a college student's budget). Just think how much power you'd be making with some of those high $ aftermarket head castings!
Originally Posted by swapped2ls1
First off I want to say killer numbers Jason. Once again you have showed you can make great numbers without spending tons of money. Its all in the setup.
BTW, ready to upgrade yet??
Jason
Jason