L92s+Mild cam, LS2 in a 06 GTO
07-27-2008, 08:49 PM
#1
Teching In
Thread Starter
Join Date: Mar 2007
Location: Virginia Beach
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
L92s+Mild cam, LS2 in a 06 GTO I just wanted to post my dyno results up here and see if they're on par with where I should be. Dyno tuning was done by Ed Hutchings (edcmat-l1) at The HP Factory in Portsmouth, VA. He spent four-five hours on my car, with almost no notice, was happy to answer every dumb question I had about everything, and sent me away happy with my car, finally. Thanks, Ed
I'll be talking with you soon!
Car is a 6.0 LS2 GTO, six speed. Stock gears, stock bottom end.
Sorry for the tiny size, but the important numbers are 440rwhp, and close as doesn't matter to 400rwtq, with a big broad curve. Pulls hard from down low, with plenty of usable, drivable, lug-it-in-sixth torque.
Mods:
Twin-Filter cai, utilizes the hood scoops on the 06 GTO
Ported 90mm LS2 TB, ported L76
Bone stock L92 heads, double springs, titanium hardware, GM rocker arms
Mild cam, Stage I L92 cam from Livernois
(224/230 .581/.591 114LSA)
1 3/4 SLP long tubes, catted, Magnaflow catback
I know for a fact there is not one single horsepower left in the tune. How much performance am I leaving on the table with untouched heads? Ed said mine were the first set of box-stock heads he's tuned. How much would I gain from going up a size in camshaft? The car is a DD so reliability and streetability are a must.
I'll be talking with you soon!Car is a 6.0 LS2 GTO, six speed. Stock gears, stock bottom end.
Sorry for the tiny size, but the important numbers are 440rwhp, and close as doesn't matter to 400rwtq, with a big broad curve. Pulls hard from down low, with plenty of usable, drivable, lug-it-in-sixth torque.
Mods:
Twin-Filter cai, utilizes the hood scoops on the 06 GTO
Ported 90mm LS2 TB, ported L76
Bone stock L92 heads, double springs, titanium hardware, GM rocker arms
Mild cam, Stage I L92 cam from Livernois
(224/230 .581/.591 114LSA)
1 3/4 SLP long tubes, catted, Magnaflow catback
I know for a fact there is not one single horsepower left in the tune. How much performance am I leaving on the table with untouched heads? Ed said mine were the first set of box-stock heads he's tuned. How much would I gain from going up a size in camshaft? The car is a DD so reliability and streetability are a must.
07-28-2008, 07:56 AM
#5
Teching In
Thread Starter
Join Date: Mar 2007
Location: Virginia Beach
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
I have been to the track a few times, and I have a few good numbers, unfortunately not all in the same run though.
First time at the track, with just heads, cam, and headers, I was running 13 flats, at 112-113mph. I couldn't hook for *****.
Second time out, with a catback added, my best run was with a 1.8 60', 12.49 @ 107mph. The low mph is due to the fact that I missed fourth (yes, fourth) and was off the gas for a good half second right before I crossed the 1/4 mark before getting back on it. So I'm guessing with that decent 60' and not missing any gears, and now with the ported intake, I'd be in the low 12s, possibly 11s.
First time at the track, with just heads, cam, and headers, I was running 13 flats, at 112-113mph. I couldn't hook for *****.
Second time out, with a catback added, my best run was with a 1.8 60', 12.49 @ 107mph. The low mph is due to the fact that I missed fourth (yes, fourth) and was off the gas for a good half second right before I crossed the 1/4 mark before getting back on it. So I'm guessing with that decent 60' and not missing any gears, and now with the ported intake, I'd be in the low 12s, possibly 11s.
07-28-2008, 11:23 AM
#6
I think the power is very good considering the mild cam and compression. Not sure if this would be any more power than if you had left the 243 heads and added a FAST intake and the same cam, but like I said, very good power!
__________________
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
07-28-2008, 12:28 PM
#7
As for changing the combo completely, yes we could get him real close to 500 rwhp, but thats not what he wants. He wants a very mild, driveable car.
Theres hidden power in these heads, without ever porting. Just a few "tweaks" is all that needed on a combo like this. We can probably gain another 20-25 without even porting.
Trending Topics
07-29-2008, 02:34 PM
#13
Teching In
Thread Starter
Join Date: Mar 2007
Location: Virginia Beach
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
Indeed it is. It drives damn near stock, like I said I can lug it, start in second, ease out of first without touching the gas...
According to Ed, there is a lot more power to be had in the heads, without making any sacrifices. A bump in compression and his little "tweaks" should put me over 450rwhp, and keep the great street manners I've gotten used to. And, come the fall, help me break into the 11s.
According to Ed, there is a lot more power to be had in the heads, without making any sacrifices. A bump in compression and his little "tweaks" should put me over 450rwhp, and keep the great street manners I've gotten used to. And, come the fall, help me break into the 11s.
Last edited by Beach Goatxz; 08-02-2008 at 04:54 PM.
07-29-2008, 03:35 PM
#14
TECH Senior Member
iTrader: (6)
Join Date: Jul 2005
Location: Decatur, AL
Posts: 5,276
Likes: 0
Received 0 Likes
on
0 Posts
Good numbers.
Here is mine that is something similar to compare to:
All the specs in my sig + the L92's are pocket ported/bowl blended.
1 3/4" longtubes with x pipe and full 2.5" exh. no cats.
The heavy 275/55-20's and 5.13's are a hinderance when compared to car numbers.
Also, mine should have more in it since it was in the 12.5:1 range on the top end.
Timing is 32* through the mid-range and pulled back to 28-29* above 5800.
Here is mine that is something similar to compare to:
All the specs in my sig + the L92's are pocket ported/bowl blended.
1 3/4" longtubes with x pipe and full 2.5" exh. no cats.
The heavy 275/55-20's and 5.13's are a hinderance when compared to car numbers.
Also, mine should have more in it since it was in the 12.5:1 range on the top end.
Timing is 32* through the mid-range and pulled back to 28-29* above 5800.
Last edited by TurboGibbs; 07-29-2008 at 03:43 PM.
