Another heads/cam LS1 F-body above 500 rwhp!
06-15-2007, 10:23 AM
#26
Originally Posted by Slowhawk
Very nice. I bet if you installed it at 112 straight up it dyno queeen another 5-10rwhp up top. 
__________________
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.
06-15-2007, 11:20 AM
#28
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great numbers!!! How can you get numbers near that with diff heads.I have TSP stage 2.5 5.3 l heads with atr224/112 cam ported fast and put down 417rwhp 407rwt in an A4.Not sure i can afford another set of heads,but can do a cam in the near future.Would it take a custom grind or will a bigger of the shelf stick help
06-15-2007, 11:48 AM
#29
out of curiosity, could you have the cam cut on the lsk lobe but grind the top portion so that the total lift stayed where you are now... therefore utilizing the fast ramp rate to get the valve to the 280 cfm range and hold it there longer, but not go past it? Or would it just be too much a valvetrain hammer to slam the valve open to where you're at 280 cfm and hold it at that level for as long as possible before letting it close really fast?
06-15-2007, 12:00 PM
#31
Originally Posted by JL ws-6
out of curiosity, could you have the cam cut on the lsk lobe but grind the top portion so that the total lift stayed where you are now... therefore utilizing the fast ramp rate to get the valve to the 280 cfm range and hold it there longer, but not go past it? Or would it just be too much a valvetrain hammer to slam the valve open to where you're at 280 cfm and hold it at that level for as long as possible before letting it close really fast?
Originally Posted by JL ws-6
another question... did you try just putting a set of bullets off the headers, to see what that would get you? I'd be curious if it would make more power that way.. I suspect that it would.
__________________
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.
06-15-2007, 12:05 PM
#32
Intresting about the header extensions... I'm about to drop the exhaust off my car to just the headers, but I'm in a different boat with that (13.5 to 1 402 big hydraulic setup and race fuel) and the consensus is that my car shoudl pick up a good amount of power.
What do you think a specialized cam like what I was mentioning would be good for, I understand it would probably be a 600 dollar camshaft, but if it was good for enough power, I think there are people out there that would do it.
What do you think a specialized cam like what I was mentioning would be good for, I understand it would probably be a 600 dollar camshaft, but if it was good for enough power, I think there are people out there that would do it.
06-15-2007, 12:28 PM
#34
Originally Posted by Patrick G
Probably so Don, but I fear it might lose more torque in the mid-range than what I would gain up high. It would be worth trying though.
Right now I'm doing a 236 Cam on a 112+4 on a AFR car with 11.5-1 comp.Then we'll probly put it to 112 straight up to see.
Always testing and finding weird results
06-15-2007, 01:53 PM
#36
Originally Posted by dug
does the new ypipe make the car sound any different?
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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.
06-15-2007, 02:06 PM
#37
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Originally Posted by Patrick G
I decided to go back to AFR 205 heads and a larger cam instead of the AFR small bore 225s and a small cam that I had before. With the higher airspeed of the 205s verses the 225s, the larger cam has the same street manners as my smaller cam had with the bigger heads. These new AFR 205 heads are not quite your garden variety 205, rather they have a number of tweaks designed to work better with a FAST intake and a lower lift hydraulic cam. Notice I chose a very popular lobe and duration range for my custom cam.
I will start another thread going into greater detail on all the components in the build, but here's a short list:
AFR 205 heads with chamber opened up to 4.00" bore (to better unshroud the valves).
Standard 205cc CNC port work
Revised valve job for better low and mid-lift flow.
Heads milled to achieve 57cc chamber size (static compression 11.92:1)
I keep reading posts like this (and others) and it seems like the AFR 205 is continually outperforming the larger 225 head. Even Tony Mamo recommends the 205 over the 225 for large cubes. Don at DEZ recently reported killer numbers with the 205 on some 402's. Based on that and my 402 w/225's I'm convinced the 205 is a better head. In all honestly I'm not happy with them and so tempted to toss the 225's in favor of something else right now.
Rant off, once again great numbers.
06-15-2007, 02:34 PM
#39
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Just one question for you PG....Have you tried to lean it out where the dip is to see if the car is EGR from intake reversion at that spot...?
A few notes about the exhaust that i've noticed when making them. The smoother the transitioning is for the two adjoining pipes, the less rasp you will get. Also the longer the merge within a given area the more mid and upper RPM power can be unleashed. If made correctly they can show similar gains as to that of a well designed X-merge. I like to hand fab mine and then go in and radius all the edges. The one you have is quite nice but id never spend that kind of money on something you can make yourself for a fraction of the cost.
A few notes about the exhaust that i've noticed when making them. The smoother the transitioning is for the two adjoining pipes, the less rasp you will get. Also the longer the merge within a given area the more mid and upper RPM power can be unleashed. If made correctly they can show similar gains as to that of a well designed X-merge. I like to hand fab mine and then go in and radius all the edges. The one you have is quite nice but id never spend that kind of money on something you can make yourself for a fraction of the cost.
06-15-2007, 05:19 PM
#40
Originally Posted by eb02z06
Very nice results Patrick!!!! What do you think the results would be if you dropped compression down to 10.1? You know where I'm going on this one.
BTW, I like your way of thinking.
__________________
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.