My C6 Dyno'ed
Thread Starter
Drifting
Joined: Aug 2000
Posts: 1,969
Likes: 40
From: South Georgia
My C6 Dyno'ed
I took my car to EFI Alchemy in Jacksonville, FL to get a stock C6Z06 exhaust put on the car. Kudos to Doc and especially Jeff for a job well done.
Seems that the number 7 plug wire was not connected, it didn't throw any codes, yet the plug wire was corroded and unusable. Would have never found it had we not replaced the exhaust.
After the install, Doc threw her on the dyno and tuned it for me.
The only engine mods are a Cold Air Intake from AirRaid and the C6Z06 exhaust (the SLP Loudmouth 1 was getting old and the drone on the road was driving me nuts).
406 horsepower and 400 pound feet of torque. Gotta love the LS3's
Seems that the number 7 plug wire was not connected, it didn't throw any codes, yet the plug wire was corroded and unusable. Would have never found it had we not replaced the exhaust.
After the install, Doc threw her on the dyno and tuned it for me.
The only engine mods are a Cold Air Intake from AirRaid and the C6Z06 exhaust (the SLP Loudmouth 1 was getting old and the drone on the road was driving me nuts).
406 horsepower and 400 pound feet of torque. Gotta love the LS3's
Race Director
Joined: Oct 2005
Posts: 14,999
Likes: 200
From: Bay Area Ca.
I saw 407 rwhp and 398 rwtq with just a tune on a LS3 with 800 miles. MN6
Dynapack.
Just recently it was tuned, after the emission suggested work was done, by the same tuner and Dynapack. There is the addition of a differential gear change from 3:42 to 4:10.
This time it read 398 rwhp and 393 rwtq.
I have heard the Dynapack will account for this. It does show it on the printout.
Still I wonder how much is attributed to different dyno runs vs the addition of the gearing.
Or the addition of two new cats as well as another two additional cats. Due to the emission work done.
Probably all three factors and seeing 11 hp and 5 tq difference, which is rough to 2 1/2 and 1 3/4% difference. Seems plausible that different runs could account for this alone being 8 yrs apart too.
Car has 38,000 miles so I am not thinking age is a part.
Numbers is numbers, the car really responded well to my long tube headers and CAI. With the additional of the 4:10 gearing set up it was transformed. Saw 422 both hp and tq. Dynamometer this time though.
Just some numbers.
Dynapack.
Just recently it was tuned, after the emission suggested work was done, by the same tuner and Dynapack. There is the addition of a differential gear change from 3:42 to 4:10.
This time it read 398 rwhp and 393 rwtq.
I have heard the Dynapack will account for this. It does show it on the printout.
Still I wonder how much is attributed to different dyno runs vs the addition of the gearing.
Or the addition of two new cats as well as another two additional cats. Due to the emission work done.
Probably all three factors and seeing 11 hp and 5 tq difference, which is rough to 2 1/2 and 1 3/4% difference. Seems plausible that different runs could account for this alone being 8 yrs apart too.
Car has 38,000 miles so I am not thinking age is a part.
Numbers is numbers, the car really responded well to my long tube headers and CAI. With the additional of the 4:10 gearing set up it was transformed. Saw 422 both hp and tq. Dynamometer this time though.
Just some numbers.
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
Advanced
Joined: Jun 2015
Posts: 66
Likes: 0
From: Chesterfield, VA
Please with the fit and quality as well. Only issue is the ceramic coating is very thin. If you go that route, ask them if you could have them coated twice, with maybe you picking up the expense for the second coating.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
No problem with the install if you follow their advice. I tried to cut corners and it took me longer than it should.
Please with the fit and quality as well. Only issue is the ceramic coating is very thin. If you go that route, ask them if you could have them coated twice, with maybe you picking up the expense for the second coating.
Please with the fit and quality as well. Only issue is the ceramic coating is very thin. If you go that route, ask them if you could have them coated twice, with maybe you picking up the expense for the second coating.
NSF
