Any GT11 cam problems or issues?
Thread Starter
Racer
Joined: Jul 2007
Posts: 292
Likes: 1
From: Chandler Arizona
Any GT11 cam problems or issues?
I'm very tempted to add a Lingenfelter GT11 cam (with upgraded springs) to an upcoming mod install package. Current package includes:
LG long tubes w/ cats
ported TB
ported intake
tune
(already have 160 stat, CAI and Stingers)
Driveability, gas mileage, idle, etc? Any thoughts would be great! I'm guessing around 460 gross hp without and 480-90 with?
21st Century Muscle Cars... here I come.
LG long tubes w/ cats
ported TB
ported intake
tune
(already have 160 stat, CAI and Stingers)
Driveability, gas mileage, idle, etc? Any thoughts would be great! I'm guessing around 460 gross hp without and 480-90 with?
21st Century Muscle Cars... here I come.
Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
I'm very tempted to add a Lingenfelter GT11 cam (with upgraded springs) to an upcoming mod install package. Current package includes:
LG long tubes w/ cats
ported TB
ported intake
tune
(already have 160 stat, CAI and Stingers)
Driveability, gas mileage, idle, etc? Any thoughts would be great! I'm guessing around 460 gross hp without and 480-90 with?
21st Century Muscle Cars... here I come.
LG long tubes w/ cats
ported TB
ported intake
tune
(already have 160 stat, CAI and Stingers)
Driveability, gas mileage, idle, etc? Any thoughts would be great! I'm guessing around 460 gross hp without and 480-90 with?
21st Century Muscle Cars... here I come.
Safety Car
Joined: Jun 2005
Posts: 3,989
Likes: 5
From: DFW This user does not support or recommend the product or service displayed in the ad to the right
I am having the guys at 21st Century Muscle Cars do a LPE GT11 cam with stage 2 ported LS6 heads, stock ls6 valves and crane cams double springs in just a couple of weeks, I already have LG pro long tubes,CAI,tune, stat.
I will post when I get the final results around the first week of October.
I will post when I get the final results around the first week of October.
Last edited by C6400hp; Sep 25, 2007 at 09:16 PM.
Thread Starter
Racer
Joined: Jul 2007
Posts: 292
Likes: 1
From: Chandler Arizona
I have a 2006 A6 with your listed mods without a cam and put out 360 (before the ported intake and a tune). I'm hoping for 370 with the ported intake and a tune. You'll put out around 400 with your listed mods including the cam. Add a good set of heads and you can get to 450 (Tom Wong made 440 with PRC stage 2.5 heads and the GT11, but that was on a Mustang dyno, it would be a little higher with a Dynojet).
I am having the guys at 21st Century Muscle Cars do a GT11 cam with Livernois stage2 ported heads, stock ls6 valves and crane cams double springs in just a couple of weeks, I already have LG pro long tubes,CAI,tune, stat.
I will post when I get the final results around the first week of October.
I will post when I get the final results around the first week of October.
Instructor
Joined: Apr 2007
Posts: 200
Likes: 0
From: Hawthorn Woods Illinois
007,
DO not hesitate! Go for it ASAP. Sounds like you have a real solid plan and from my limited (although growing) knowledge it reads like your goals are very reachable. Even though I'm getting heads over the winter I have very little experience/knowledge on head choice. I do know though that with an outfit like Lingenfelter you can't go wrong. Good luck, have fun and be safe! Don't forget your "Brothers in Arms" and post results! Can't wait!
Fran
DO not hesitate! Go for it ASAP. Sounds like you have a real solid plan and from my limited (although growing) knowledge it reads like your goals are very reachable. Even though I'm getting heads over the winter I have very little experience/knowledge on head choice. I do know though that with an outfit like Lingenfelter you can't go wrong. Good luck, have fun and be safe! Don't forget your "Brothers in Arms" and post results! Can't wait!
Fran
Melting Slicks
Joined: Jun 2006
Posts: 2,690
Likes: 1
From: Northern Calif
guys, I got the LS2 cheatr with comp 921 springs staring at me every day next to my computer. I think that the two cams a very similar. Agree? If so then I am not hijacking the thread
Contimplating install of cheatr without head work or after market heads. Think I am wasting my $ if I dont do the heads with this cam?
Contimplating install of cheatr without head work or after market heads. Think I am wasting my $ if I dont do the heads with this cam?
Racer
Joined: Jan 2007
Posts: 410
Likes: 9
please note that LPE/21rst century have 2 different GT11 cams with similar specs but differ in LSA....114 versus 118. the 118 LSA is the one that is supposed to idle reasonalaby well....maybe either could chime in as I would like to know if they have any dyno graphs LS2 cam vesus GT11/118 LSA all other variables equal.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
please note that LPE/21rst century have 2 different GT11 cams with similar specs but differ in LSA....114 versus 118. the 118 LSA is the one that is supposed to idle reasonalaby well....maybe either could chime in as I would like to know if they have any dyno graphs LS2 cam vesus GT11/118 LSA all other variables equal.
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Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
Thanks,
Glenn
Le Mans Master
Joined: May 2006
Posts: 8,824
Likes: 3
From: The left Coast
St. Jude Donor '08
I have this cam (installed by Tom) with Texas Speed cnc ported heads and ARH. The car made approximately 440 rwhp with stock mufflers. Installed Borla touring which opened it up a bit more. The car is very quick especially with the DTE 4.10's. Very drivable too.
I'd like to see what the dyno reads now that its broken in and the new exhaust installed.
I'd like to see what the dyno reads now that its broken in and the new exhaust installed.
Melting Slicks
Joined: Jun 2006
Posts: 2,690
Likes: 1
From: Northern Calif
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Glen, While it would be great to have the heads in place as well. The cam will work well even with the stock heads. Your heads that are on the LS2 engine are basically the very same high flowing heads that came on the LS6 Z06 engines. The main difference is that the LS2 heads didn't come with the hollow stem intake and sodium filled exhaust valves that the LS6 engines had. Otherwise porting is identical to the LS6 heads. You will leave a few ponies on the table, but that cam will work well with your engine. And one other thing is, if budgets don't allow for buying the cylinder heads at the time of the installation, you can just add them later. The heads can be installed anytime. Just be aware that the appropriate valve springs are required for this cam.
Safety Car
Joined: Jun 2005
Posts: 3,989
Likes: 5
From: DFW This user does not support or recommend the product or service displayed in the ad to the right
please note that LPE/21rst century have 2 different GT11 cams with similar specs but differ in LSA....114 versus 118. the 118 LSA is the one that is supposed to idle reasonalaby well....maybe either could chime in as I would like to know if they have any dyno graphs LS2 cam vesus GT11/118 LSA all other variables equal.
Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
Glen, While it would be great to have the heads in place as well. The cam will work well even with the stock heads. Your heads that are on the LS2 engine are basically the very same high flowing heads that came on the LS6 Z06 engines. The main difference is that the LS2 heads didn't come with the hollow stem intake and sodium filled exhaust valves that the LS6 engines had. Otherwise porting is identical to the LS6 heads. You will leave a few ponies on the table, but that cam will work well with your engine. And one other thing is, if budgets don't allow for buying the cylinder heads at the time of the installation, you can just add them later. The heads can be installed anytime. Just be aware that the appropriate valve springs are required for this cam.
Glenn
Safety Car
Joined: Aug 2004
Posts: 4,067
Likes: 62
From: Houston Texas
IMHO this cam will run great with the stock heads, specially if you have a good set of headers. I have seen the #s of aftermarket heads with a cam and the numbers are usually just slightly better, but for 2k I want more than slightly better!
The cheatr and GT 11 were designed for stock engines and manifolds. The lower duration high lift is designed for those who want more bottom end tq. than high rev rpms that make power way up top. Not that one is better than the other, just depends on what you want. I have designed a blower cam with Patrick G from TR and we came up with a great design similar to there blower cam with specs of 214/228 .600 in .588 ex. 117+1. This will allow the procharger to make tons of tq. down low like a maggie and make great power through the rpm range. Andy at A&A ran a LS7 cam with a blower (210/230) and made 90rwhp, so the potiential of these style cams can make great power for those wanting a nice daily driver.
The cheatr and GT 11 were designed for stock engines and manifolds. The lower duration high lift is designed for those who want more bottom end tq. than high rev rpms that make power way up top. Not that one is better than the other, just depends on what you want. I have designed a blower cam with Patrick G from TR and we came up with a great design similar to there blower cam with specs of 214/228 .600 in .588 ex. 117+1. This will allow the procharger to make tons of tq. down low like a maggie and make great power through the rpm range. Andy at A&A ran a LS7 cam with a blower (210/230) and made 90rwhp, so the potiential of these style cams can make great power for those wanting a nice daily driver.
