My dyno results
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
My dyno results
Got my 06 MN6 dynoed today. Car has the following mods:
Vararam w/spacer
LS2 portworks intake manifold
Shaner ported TB
Stainless Works 1 3/4 headers w/off road x-pipe
160 stat
Tune by Lamar Walden
Before tune: All above mods on car.
358rwhp
352rwtq
After tune:
383rwhp
378rwtq
10,677miles
The care Rob at Lamar Walden took with my car is by far top notch. Rob was extremely professional and very easy to talk to. Thanks a ton to Rob at Lamar Walden!
Now from what I have seen from a few other cars recently posted on here I am @8-10rwhp and @10-15rwtq lower than other cars with same mods. The main difference I have seen is my header choice; could the 1 3/4" be the reason vs a set of kooks or LG's? The other cars I have seen in the 390+ range also were 07 models, maybe those are alittle stouter like the 04 C5Z vs the 02 C5Z's.
Any feedback or comments welcomed.
Thanks.
I didnt have much time to see what she is made of now, but he said he pulled the TM out and I could feel a difference when slamming second one time. The car before bogged itself and now the car feels like it's going to take off as the gear engages.
Vararam w/spacer
LS2 portworks intake manifold
Shaner ported TB
Stainless Works 1 3/4 headers w/off road x-pipe
160 stat
Tune by Lamar Walden
Before tune: All above mods on car.
358rwhp
352rwtq
After tune:
383rwhp
378rwtq
10,677miles
The care Rob at Lamar Walden took with my car is by far top notch. Rob was extremely professional and very easy to talk to. Thanks a ton to Rob at Lamar Walden!
Now from what I have seen from a few other cars recently posted on here I am @8-10rwhp and @10-15rwtq lower than other cars with same mods. The main difference I have seen is my header choice; could the 1 3/4" be the reason vs a set of kooks or LG's? The other cars I have seen in the 390+ range also were 07 models, maybe those are alittle stouter like the 04 C5Z vs the 02 C5Z's.
Any feedback or comments welcomed.
Thanks.
I didnt have much time to see what she is made of now, but he said he pulled the TM out and I could feel a difference when slamming second one time. The car before bogged itself and now the car feels like it's going to take off as the gear engages.
Pro
Joined: Feb 2006
Posts: 690
Likes: 0
From: VA
Got my 06 MN6 dynoed today. Car has the following mods:
Vararam w/spacer
LS2 portworks intake manifold
Shaner ported TB
Stainless Works 1 3/4 headers w/off road x-pipe
160 stat
Tune by Lamar Walden
Before tune: All above mods on car.
358rwhp
352rwtq
After tune:
383rwhp
378rwtq
10,677miles
The care Rob at Lamar Walden took with my car is by far top notch. Rob was extremely professional and very easy to talk to. Thanks a ton to Rob at Lamar Walden!
Now from what I have seen from a few other cars recently posted on here I am @8-10rwhp and @10-15rwtq lower than other cars with same mods. The main difference I have seen is my header choice; could the 1 3/4" be the reason vs a set of kooks or LG's? The other cars I have seen in the 390+ range also were 07 models, maybe those are alittle stouter like the 04 C5Z vs the 02 C5Z's.
Any feedback or comments welcomed.
Thanks.
I didnt have much time to see what she is made of now, but he said he pulled the TM out and I could feel a difference when slamming second one time. The car before bogged itself and now the car feels like it's going to take off as the gear engages.
Vararam w/spacer
LS2 portworks intake manifold
Shaner ported TB
Stainless Works 1 3/4 headers w/off road x-pipe
160 stat
Tune by Lamar Walden
Before tune: All above mods on car.
358rwhp
352rwtq
After tune:
383rwhp
378rwtq
10,677miles
The care Rob at Lamar Walden took with my car is by far top notch. Rob was extremely professional and very easy to talk to. Thanks a ton to Rob at Lamar Walden!
Now from what I have seen from a few other cars recently posted on here I am @8-10rwhp and @10-15rwtq lower than other cars with same mods. The main difference I have seen is my header choice; could the 1 3/4" be the reason vs a set of kooks or LG's? The other cars I have seen in the 390+ range also were 07 models, maybe those are alittle stouter like the 04 C5Z vs the 02 C5Z's.
Any feedback or comments welcomed.
Thanks.
I didnt have much time to see what she is made of now, but he said he pulled the TM out and I could feel a difference when slamming second one time. The car before bogged itself and now the car feels like it's going to take off as the gear engages.
My car is very similar to yours, Callaway CAI, self ported intake, American Racing 1 3/4 headers, tune by Jeff at CAM in NC. 386RWHP, 378RWTQ on a dynojet. Main diff is I do have high flow cats and an unported TB. Car is a 06 M6.
So I don`t think the 1 3/4 part is hurting you. The 1 7/8`s are more for heads and large cam or blower apps. I would say your car was a little lower than some to start, or the stainless works headers are not as effecient as some. Do they have merge collectors? The offroad pipe should have been good for 4-8rwhp over high flow cats. The ported TB`s are next to nothing unless you have more mods, internal`s blower ect...
Never the less thats good power from such minimal mods!
From my searches most are in the 380 range w/ the mods you list just a couple in the 390`s...The high 390`s are not on dynojets and dyno`s are not created equal...
Last edited by GMRULZ; Mar 21, 2007 at 09:43 PM.
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
Yes the SW headers have a 3" merge collector that goes down to a 2.5" through the x-pipe.
Really wanted to hit 390 at least but I guess 7hp away isnt much to complain about. Rob did say he left it conservative as the VR will cause it to run leaner at higher speeds.
What are you guys a/f ratio's throughtout the rev band?
Really wanted to hit 390 at least but I guess 7hp away isnt much to complain about. Rob did say he left it conservative as the VR will cause it to run leaner at higher speeds.
What are you guys a/f ratio's throughtout the rev band?
Melting Slicks
Joined: Oct 2005
Posts: 2,515
Likes: 3
From: Goleta California
My 06 Z51 MN6 made 400 rwhp and 397 rwtq with the following mods:
American Racing headers 1 3/4
LPE CAI
Ported stock intake by C. Harris
Tune by Charlie at A&A.
The dyno chart is posted on Cory's website if you are interested.
American Racing headers 1 3/4
LPE CAI
Ported stock intake by C. Harris
Tune by Charlie at A&A.
The dyno chart is posted on Cory's website if you are interested.
Race Director
Joined: Feb 2006
Posts: 11,733
Likes: 15
From: SC
IMO your right were you should be. I'll be doing very similar mods and expect to hit between 370-380rwhp, if I get anywhere over 380 I'll be surprised.
Right now stock I'm at 341rwhp 334rwtq.
Mods to come
K&N aircharger
Vararam TB spacer
Ported LS2 manifold
American Racing 1 7/8ths headers
Tune
Right now stock I'm at 341rwhp 334rwtq.
Mods to come
K&N aircharger
Vararam TB spacer
Ported LS2 manifold
American Racing 1 7/8ths headers
Tune
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Pretty nice results, congrats. Could you enlighten us a bit, tho? Who is Rob, and where is Lamar Walden? It'd be nice if you filled in your profile a bit so it'd be obvious as to about where this all took place. Thanks!
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Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
Rob is the tuner at Lamar Walden in Doraville, GA.
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
The SAE smoothing at the top right corner looks like 5. My dyno time was set at 3 so what would be the difference?
It's also hard to tell but your a/f looks like 14 most of the way across and more so in the upper range. I believe mine was @12.2 above 4rpm which might explain the difference in power and tq.
I told the tuner, Rob, that I planned to autcross the car so he made sure it was safe at low speeds but high rpms caused by autocrossing. If those that are making 385 and up are in a much leaner state from the tuning I would better understand and except my results. Again he did tell me it would lean out once going at higher speeds so in reality the car should be making 390+ once above 60mph. Right?
Pro
Joined: Feb 2006
Posts: 690
Likes: 0
From: VA
Check out your dyno and have a couple of questions:
The SAE smoothing at the top right corner looks like 5. My dyno time was set at 3 so what would be the difference?
It's also hard to tell but your a/f looks like 14 most of the way across and more so in the upper range. I believe mine was @12.2 above 4rpm which might explain the difference in power and tq.
I told the tuner, Rob, that I planned to autcross the car so he made sure it was safe at low speeds but high rpms caused by autocrossing. If those that are making 385 and up are in a much leaner state from the tuning I would better understand and except my results. Again he did tell me it would lean out once going at higher speeds so in reality the car should be making 390+ once above 60mph. Right?
The SAE smoothing at the top right corner looks like 5. My dyno time was set at 3 so what would be the difference?
It's also hard to tell but your a/f looks like 14 most of the way across and more so in the upper range. I believe mine was @12.2 above 4rpm which might explain the difference in power and tq.
I told the tuner, Rob, that I planned to autcross the car so he made sure it was safe at low speeds but high rpms caused by autocrossing. If those that are making 385 and up are in a much leaner state from the tuning I would better understand and except my results. Again he did tell me it would lean out once going at higher speeds so in reality the car should be making 390+ once above 60mph. Right?
Matter of fact a guy w/ a 06 GTO, cut his mufflers off, CAI and a tune , no other mods, and put 399rwhp down according to the dynopack! No other mods.....Not sure what happened that day but that was supposed to be corrected...
So I know the dynopack reads higher. Heck even the same dyno`s can vary a little. Always ask what dyno someone was on when trying to compare numbers. That way you know you are comparing apples to apples. Another dyno, the Mustang Dyno`s reads lower than dynojets by the way.
I need to go to the dynopack shop and get a rwhp number on the vette so I can compare the dyno`s on this car. I`m betting I`ve got a good chance to hit that 400 mark...
To answer your question the leanest my a/f goes is 12.9 to 1.
Safety Car
Joined: Dec 1999
Posts: 4,148
Likes: 5
From: Roxbury NJ
Your dyno results look great to me. If anything, they are a little better than most get with your listed mods. Nothing to worry about at all.
With very similar mods, my car made 380 on a Dynojet.
As others have said, the cars that make 390+ with just headers and intakes are either on a different dyno, they were factory freaks, or they spent lots of time on the rollers with somebody tuning to absolute perfection for the conditions on the dyno on that one day. Not exactly the norm to strive for (or to expect).
With very similar mods, my car made 380 on a Dynojet.
As others have said, the cars that make 390+ with just headers and intakes are either on a different dyno, they were factory freaks, or they spent lots of time on the rollers with somebody tuning to absolute perfection for the conditions on the dyno on that one day. Not exactly the norm to strive for (or to expect).
Le Mans Master
Joined: Aug 2002
Posts: 8,472
Likes: 38
From: Houston TX
St. Jude Donor '11
Those are great gains from the tune and I think the post tune numbers are very good for your bolt ons. Your AFR must have been way off prior to the tune. I haven't seen LS2 spark tables being able to be bumped up like they could on the LS1/6's so the timing aspect of an LS2 is less important.
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
Thanks for the feedback guys. After reviewing some other graphs I am happy. I know the tuner left some hp on the table with keeping the tune conservative and alittle on the fat side, but this is what I needed for the style of driving I will be doing.
Thanks again for all your responses.
Thanks again for all your responses.
Pro
Joined: Feb 2006
Posts: 690
Likes: 0
From: VA
Thanks for the feedback guys. After reviewing some other graphs I am happy. I know the tuner left some hp on the table with keeping the tune conservative and alittle on the fat side, but this is what I needed for the style of driving I will be doing.
Thanks again for all your responses.
Thanks again for all your responses.
Your welcome.
12.2 to 12.9 probably would have conservatively bagged you another 6-10rwhp.
