What do most ls3's baseline?
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Burning Brakes
Joined: Jan 2007
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From: Spring City Tn
What do most ls3's baseline?
I just got my '08 a6 pace car yesterday. I want to at least get a tune and maybe a stage I at MTI. They did a stage I on my '05 mn6 coupe and I really liked the improvements. My '05 had a rwhp baseline of 334 and 389 rwhp after the stage I. What can I expect with my ls3 a6?.......thanks
Team Owner
Joined: Jun 2005
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From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Ask them; I'd bet they have some stats on existing LS3's they've dynoed, before and after. I'd think that from what I've read here on CF, probably for an A6 somewhere in the 370s.
Thread Starter
Burning Brakes
Joined: Jan 2007
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From: Spring City Tn
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Melting Slicks
Joined: Apr 2001
Posts: 3,034
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From: NY-South Florida
We have seen an "average" between 370-390 RWHP. I just finished another cam/header intake package that made 492 RWHP.
A tune with airbox gets you between 390-410. Add headers 435-445.
That LS3 is a awesome engine!
Howard
A tune with airbox gets you between 390-410. Add headers 435-445.
That LS3 is a awesome engine!
Howard
Team Owner
Joined: Feb 2000
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From: Texas
CI 1-4-5-8-9-10 Vet
St. Jude Donor '03 thru '10, '17
Your "before" numbers were obviously manipulated to the low side by your tuner to make him look like a hero.
Melting Slicks
Joined: Apr 2001
Posts: 3,034
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From: NY-South Florida
I don't think baseline numbers look low. Why would you assume the tuner manipulated the numbers?
Team Owner
Joined: Feb 2000
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From: Texas
CI 1-4-5-8-9-10 Vet
St. Jude Donor '03 thru '10, '17
The majority or MN6 LS3 cars are dynoing around 385 to 390 at the wheels. 375 is low. I'm sure most tuners would like us to believe they can provide a 23 RWHP increase on a stock car but most people know better.
Let's give it the benefit of doubt. All of the "+25 HP" tunes that I have seen (cough cough
) on stock LS3s, start with what I consider to be artificially low "before" numbers - like 360 - 370 RWHP. Assuming some dynos read lower than others (I believe this to be true), if a 25RWHP gain is totally valid, then why don't we see more tunes with 390 before, and 415 after? I have seen none.**edit**
I just looked at your signature :
2008 LS3 Z51 (390/389) STOCK!
Last edited by need-for-speed; Jun 28, 2008 at 11:45 AM.
Team Owner
Joined: Feb 2000
Posts: 45,388
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From: Texas
CI 1-4-5-8-9-10 Vet
St. Jude Donor '03 thru '10, '17
absolutely. Dynos should be used for observing a change in before and after numbers i.e - the delta, and not so much for the absolute value. But then again, some might purposely manipulate the "before" numbers to make the "delta" look bigger.
Who wouldn't want that kind of tune?
Unless one knows better.
Burning Brakes
Joined: Oct 2005
Posts: 1,057
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From: Michigan
From what Ive seen, on a Mustang Dyno - from Vector Motorsports in Clinton Twp Michigan.
A typical 08 manual does ~385 RWHP = 12% loss ~ 436/437 flywheel
A typical 08 manual with headers ~ 430RWHP = 12% loss ~ 488 Flyheel
A typical 08 auto does ~ 358 RWHP = 18% loss ~ 436/437 flywheel
A typical (mine) 08 with headers ~ 396 RWHP = 18% loss ~ 483 Flywheel
Soooo... If you see - the auto losses 18% roughly and the manual losses roughyl 12%.
A typical 08 manual does ~385 RWHP = 12% loss ~ 436/437 flywheel
A typical 08 manual with headers ~ 430RWHP = 12% loss ~ 488 Flyheel
A typical 08 auto does ~ 358 RWHP = 18% loss ~ 436/437 flywheel
A typical (mine) 08 with headers ~ 396 RWHP = 18% loss ~ 483 Flywheel
Soooo... If you see - the auto losses 18% roughly and the manual losses roughyl 12%.
Pro
Joined: Jul 2007
Posts: 740
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From: Lynchburg VA
Well like some have said dynos are just for tuning. Some have told me my numbers are low,....but I'm just as fast as any LS3 with the same mods showing 420-440 at only 409rwtq 409rwhp. I have run 7.48@ 96.6 and the car with go faster still on a better hooking pass.