The "recipe" to 500 rwhp with heads and cam.
08-17-2007, 08:28 AM
#202
Originally Posted by 0utLawTransAm
so by just milleing the heads you can get alot more hp ? what about ptv ?
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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.
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.
08-23-2007, 12:27 PM
#203
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How would true duals or duals dumped effect things with the exh side? I'm not thinking it'll make that big of a deal.. But I figured I'd ask.
I've made up my mind on my cam FINALLY! I'm gonna do a set of 205 TF heads and the MS3 cam.
I've made up my mind on my cam FINALLY! I'm gonna do a set of 205 TF heads and the MS3 cam.
08-23-2007, 01:38 PM
#205
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Originally Posted by BYE RICE
Duals are inferior on an Fbody compared to a properly designed Y-pipe.
I know this for certain.
I know this for certain.
if you had two identical setups, one with a properly built X and the other with a properly built Y.......i doubt either would show significant gains over the other.
08-23-2007, 01:51 PM
#206
Originally Posted by Ceissus
prove it.
if you had two identical setups, one with a properly built X and the other with a properly built Y.......i doubt either would show significant gains over the other.
if you had two identical setups, one with a properly built X and the other with a properly built Y.......i doubt either would show significant gains over the other.
We ran 3 times from a 60+ roll..I put over a car length on him to 120.
Patrick can probably explain better than I..But the bottom line is the Y-pipe combined with smooth Y-collector merge actually draws the exhast out..Whereas an X-pipe designed to fit an fbody doesn't..The velocity is slower through the x..
Trust me,If Patrick thought an X was better,he would have run it.
Besides a Y-pipe just fits better on our cars.
08-23-2007, 02:10 PM
#207
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Originally Posted by BYE RICE
I dont have a vid.So it's more anecdotal..But I ran another car nearly identical to mine..He has a 383/M6/3.90 12 bolt & TSP duals..I have a 383/M6/3.73 12 bolt & a Y-pipe similar to Pat-g's, only smaller in diameter.
We ran 3 times from a 60+ roll..I put over a car length on him to 120.
Patrick can probably explain better than I..But the bottom line is the Y-pipe combined with smooth Y-collector merge actually draws the exhast out..Whereas an X-pipe designed to fit an fbody doesn't..The velocity is slower through the x..
Trust me,If Patrick thought an X was better,he would have run it.
Besides a Y-pipe just fits better on our cars.
We ran 3 times from a 60+ roll..I put over a car length on him to 120.
Patrick can probably explain better than I..But the bottom line is the Y-pipe combined with smooth Y-collector merge actually draws the exhast out..Whereas an X-pipe designed to fit an fbody doesn't..The velocity is slower through the x..
Trust me,If Patrick thought an X was better,he would have run it.
Besides a Y-pipe just fits better on our cars.
someone needs to do a dyno with a really good X, then swap to a really good Y and post the results.(yes i realize how much work this would be)
08-23-2007, 06:01 PM
#208
Originally Posted by Ceissus
only thing i agree with is that y pipes fit better. Not saying you're wrong but i have yet to see ANY solid proof of either one out performing the other.
someone needs to do a dyno with a really good X, then swap to a really good Y and post the results.(yes i realize how much work this would be)
someone needs to do a dyno with a really good X, then swap to a really good Y and post the results.(yes i realize how much work this would be)
08-23-2007, 06:31 PM
#210
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Originally Posted by HTX
why dont you do it?
Originally Posted by 98Camarod
I still haven't seen which cam you went with. Comp xer ___/___
08-23-2007, 07:25 PM
#211
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Originally Posted by BYE RICE
........................
Trust me,If Patrick thought an X was better,he would have run it.
Besides a Y-pipe just fits better on our cars.
Trust me,If Patrick thought an X was better,he would have run it.
Besides a Y-pipe just fits better on our cars.
That makes a lot of sense there..
I'll prolly do the Mufflex Y then.. Same design as his..
08-23-2007, 07:42 PM
#212
Originally Posted by Ceissus
only thing i agree with is that y pipes fit better. Not saying you're wrong but i have yet to see ANY solid proof of either one out performing the other.
Originally Posted by Ceissus
someone needs to do a dyno with a really good X, then swap to a really good Y and post the results.(yes i realize how much work this would be)
The only way to do this is on an engine dyno where there are no chassis restrictions.
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08-23-2007, 09:35 PM
#213
Originally Posted by 98Camarod
I still haven't seen which cam you went with Patrick, Comp xer ___/___
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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.
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.
08-27-2007, 04:56 AM
#215
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Originally Posted by Patrick G
The fitment of the QTP y-pipe is hit and miss, but the flow is very good. The QTP y-pipe works even better if you take the 4" collector and run a 4" I-pipe all the way to a 4" cutout, then neck it down to 3".
08-27-2007, 06:34 AM
#216
Originally Posted by 4.8T
what if instead of a 4" I-pipe a person were to use a 4" magnaflow muffler? i ask because i have one from my old truck. its 30" long i think. then from there tapper down to a single 3"?
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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.
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.
08-27-2007, 10:02 AM
#217
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i think i will. i found that y pipe piece from your write up.
i found a thread where somebody ask about lsk lobes and daily driving. you said you were going to test your springs. did you ever get to do that? just wondering if any body has actually done any testing to see how long springs such as the pp extreme dual will last with these lobes? and would towing and such affect the life of the springs? i wouldn't think so but you never know unless you ask. does it depend on how high you rev the motor and how often?
i found a thread where somebody ask about lsk lobes and daily driving. you said you were going to test your springs. did you ever get to do that? just wondering if any body has actually done any testing to see how long springs such as the pp extreme dual will last with these lobes? and would towing and such affect the life of the springs? i wouldn't think so but you never know unless you ask. does it depend on how high you rev the motor and how often?
08-27-2007, 11:41 AM
#219
I find it interesting you shimmed the Yella Terra rockers. I am in the process of installing a set on a friends car with stock LS1 heads and found that the shim produced an almost ideal wipe pattern. When I mentioned this to others, no one had even checked their wipe pattern but rather simply bolted them in place. We did need to order longer pushrods though.
