Trex guys, what did you down grade too?
08-04-2011 | 11:42 PM
#23
No problem. I made this thread to help people and myself. To many people to on du.o numbers or don't have the correct set up for a big cam. My set up works awesome. The car rips pretty sambhar well, it just not for me. Glad this thread has helped you out!
08-05-2011 | 12:31 PM
#26
What did your car dyno? Do you have a printout? I would like to see what it's doing through the powerband. Im guessing your heads are home ported? I have personally seen "worked" "ported&polished" home ported heads just fall flat on their face because of the port job. It's not just about taking material out of a port, it's knowing where and how much to take out. Every trex cam car I have driven and owned pulls hard throughout the rpm band. But then again I had "true" supporting mods.
08-05-2011 | 01:07 PM
#27
The heads are not affecting the lowend. The car runs very strong, it just doesnt have the low end that my other cams have had.
I know what your saying. I said that to ward off anyone who wanted to mentain you know who. Almost every cam I see him spec is the same.
I heard Shawn at VA is pretty damn good but he never answers my pms. Also thinking about talking with Futral. I know Ed Curtis is pretty good as well.
I got the TRex in trade and wanted to see if I would like a big cam since I would have the proper set up to run one (gears, upped compression etc) over my low end specd cam. I want something in the middle lol.
I totally agree with you. Great post. Thats why I made this thread to see REAL world experiences. I dont give a damn about numbers or how the cam sounds. Wondering about real world power bands.
Heres what Im thinking
235/239 LSL 111+4
or
236/238 xfi/xer 111+4
I know what your saying. I said that to ward off anyone who wanted to mentain you know who. Almost every cam I see him spec is the same.
I heard Shawn at VA is pretty damn good but he never answers my pms. Also thinking about talking with Futral. I know Ed Curtis is pretty good as well.
I got the TRex in trade and wanted to see if I would like a big cam since I would have the proper set up to run one (gears, upped compression etc) over my low end specd cam. I want something in the middle lol.
I totally agree with you. Great post. Thats why I made this thread to see REAL world experiences. I dont give a damn about numbers or how the cam sounds. Wondering about real world power bands.
Heres what Im thinking
235/239 LSL 111+4
or
236/238 xfi/xer 111+4
Since you're only needing to carry power strongly to 6.5K, you don't really need to extend the exhaust duration past 235-236 at .050". You could go 234/236 XE-R or 235/235 LSL and go 112LSA +4 advance. This will give you 11 degrees of overlap at .050" and an intake valve closing point around 45 degrees ABDC at .050".
__________________
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.
08-05-2011 | 01:43 PM
#29
For those who don't have the Comp catalog memorized, he was referring to a 231/239 .617/.627" 113LSA +4 advance cam ground with LSL lobes.
__________________
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.
08-05-2011 | 02:29 PM
#31
What did your car dyno? Do you have a printout? I would like to see what it's doing through the powerband. Im guessing your heads are home ported? I have personally seen "worked" "ported&polished" home ported heads just fall flat on their face because of the port job. It's not just about taking material out of a port, it's knowing where and how much to take out. Every trex cam car I have driven and owned pulls hard throughout the rpm band. But then again I had "true" supporting mods.
Can you elaborate more on your "true" supporting mods vs his setup?
Last edited by Cosmos; 08-05-2011 at 02:43 PM.
08-05-2011 | 02:33 PM
#32
Even stock ls1s don't feel like they come alive until about 3000rpm. My cam is pretty small but 3500rpm is where it really starts to pick up.
But I would imagine a cam as big as yours feels even softer in comparison since it would pull so much harder up top.
Looks like some good suggestions from Patrick G, I would listen to him. He had a very good thread a while back about a torque monster cam you might also look into.
But I would imagine a cam as big as yours feels even softer in comparison since it would pull so much harder up top.
Looks like some good suggestions from Patrick G, I would listen to him. He had a very good thread a while back about a torque monster cam you might also look into.
08-05-2011 | 02:39 PM
#33
Since you're only needing to carry power strongly to 6.5K, you don't really need to extend the exhaust duration past 235-236 at .050". You could go 234/236 XE-R or 235/235 LSL and go 112LSA +4 advance. This will give you 11 degrees of overlap at .050" and an intake valve closing point around 45 degrees ABDC at .050".
Both of those cams are a step in the right direction, but I'm not sure if they go far enough to make your street driving enjoyable again
I really do enjoy the 4k+ pull of the TRex. Its pretty damn fun
Thanks for turning this into a great thread guys!!!
08-05-2011 | 06:55 PM
#34
Great advice/info, as usual, from Pat G! I failed to mention that he spec'd out my L92 headed, 408 for me. I still have yet to get the engine running, but I know I will be impressed with the results, as I was honest with myself as far as my plans and expectations are concerned, for my vehicle.
08-08-2011 | 11:49 AM
#36
Pats cam suggestions are exactly where you wanna be...especially since you
have the 4.30 gears. I was gonna suggest the TSP torquer V3 as you seemed
against the other 3 letter vendor
have the 4.30 gears. I was gonna suggest the TSP torquer V3 as you seemed
against the other 3 letter vendor
08-08-2011 | 10:55 PM
#38
[QUOTE=Cosmos;15233723]I dont wanna pay someone to give me a cam they recommended to 80 other people on tech.
It seems they either have 3 different cam specs they give out, recommend a off the shelf cam (which can be great) or they just dont answer your pms.
I know what your saying. I said that to ward off anyone who wanted to mentain you know who. Almost every cam I see him spec is the same.
Perhaps my math is wrong but it would seem that 2+2+2=6
It seems they either have 3 different cam specs they give out, recommend a off the shelf cam (which can be great) or they just dont answer your pms.
I know what your saying. I said that to ward off anyone who wanted to mentain you know who. Almost every cam I see him spec is the same.
Perhaps my math is wrong but it would seem that 2+2+2=6
08-08-2011 | 11:19 PM
#40
glad u didnt just toss the raptr cam in, it works ok with a ls6 intake FAST intake helps it thou(plus it pullls much farther then 65k depending where u setup your rev limiter)! The comp lsr 231 239 mentioned above is also a great cam.