are these dyno numbers low?
Thread Starter
Racer
Joined: Dec 2006
Posts: 408
Likes: 0
From: Houston TX
are these dyno numbers low?
2003 corvette
stock engine
dynatech supermax headers, cat and x-pipe
corsa pacecar exhaust
callaway honker intake
new plugs, wires and 93 octane gas.
somehow i was expecting bigger numbers before and after the tune.
what do you think? do these numbers seem low or have i been drinking the after market cool aid?
thanks for looking.
stock engine
dynatech supermax headers, cat and x-pipe
corsa pacecar exhaust
callaway honker intake
new plugs, wires and 93 octane gas.
somehow i was expecting bigger numbers before and after the tune.
what do you think? do these numbers seem low or have i been drinking the after market cool aid?
thanks for looking.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
manual shift or automatic?
I'll assume 6 speed. Using the drivetrain loss figure of 15% for a manual shift setup, that puts you near 390hp at the flywheel. For the mods of yours that really matter; I'd say you are right where you should be after a dyno tune.
I'll assume 6 speed. Using the drivetrain loss figure of 15% for a manual shift setup, that puts you near 390hp at the flywheel. For the mods of yours that really matter; I'd say you are right where you should be after a dyno tune.
Racer
Joined: Aug 2007
Posts: 290
Likes: 0
From: Riverview FL
Those numbers seem fine. Mine is an 02 A4 with (that matter) a vararam and ssac headers w/ xpipe and dyno'd at around 310rwhp. I think my stock engine was one of the ones that was a little weaker coming out of the factory unfortunately.
Melting Slicks
Joined: Jul 2006
Posts: 2,094
Likes: 5
From: The 7th layer of hell - Western Washington
I have the dynatech package and callaway honker plus a tune on my '02 Z06 and just made 380 RWHP/372 RWTQ SAE corrected. Figuring I was ~50 HP/TQ above you at the flywheel stock I think were pretty darn close...
did your tuner tell you what was causing the power dip right about 95mph on the stock tune? mine was doing the exact same thing in the 3,500 RPM range - turned out to be the knock sensor pulling a bunch of timing and killing my curve all the way up. fixed it with the tune, but funny to see what seems to be the exact same thing on a coupe with the same mods as me...
did your tuner tell you what was causing the power dip right about 95mph on the stock tune? mine was doing the exact same thing in the 3,500 RPM range - turned out to be the knock sensor pulling a bunch of timing and killing my curve all the way up. fixed it with the tune, but funny to see what seems to be the exact same thing on a coupe with the same mods as me...
Last edited by jbauch357; Nov 19, 2007 at 12:14 AM.
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
I would have thought bigger numbers too, but not too much bigger. Maybe around 350 Hp or so. I base this off of my buddies results. He tunes his own car with HPtuners, has headers, an x pipe and no cats, and all the free mods. He made these numbers on the dyno at Cruise In VIII last summer.
Directly from his sig.
Directly from his sig.
ebay headers
magnaflow x-pipe
corsa pace car
ported tb & maf
blackwing
ls-6 Intake
C6 Z06 shifter
Z06 swaybars
hp tuners
352 rwhp, 358 rwtq (and still gets 32 mpg
magnaflow x-pipe
corsa pace car
ported tb & maf
blackwing
ls-6 Intake
C6 Z06 shifter
Z06 swaybars
hp tuners
352 rwhp, 358 rwtq (and still gets 32 mpg
Last edited by Eddie 70; Nov 19, 2007 at 08:36 AM.
Thread Starter
Racer
Joined: Dec 2006
Posts: 408
Likes: 0
From: Houston TX
I have the dynatech package and callaway honker plus a tune on my '02 Z06 and just made 380 RWHP/372 RWTQ SAE corrected. Figuring I was ~50 HP/TQ above you at the flywheel stock I think were pretty darn close...
did your tuner tell you what was causing the power dip right about 95mph on the stock tune? mine was doing the exact same thing in the 3,500 RPM range - turned out to be the knock sensor pulling a bunch of timing and killing my curve all the way up. fixed it with the tune, but funny to see what seems to be the exact same thing on a coupe with the same mods as me...
did your tuner tell you what was causing the power dip right about 95mph on the stock tune? mine was doing the exact same thing in the 3,500 RPM range - turned out to be the knock sensor pulling a bunch of timing and killing my curve all the way up. fixed it with the tune, but funny to see what seems to be the exact same thing on a coupe with the same mods as me...
do you have your dyno sheet? i would like to see it posted so i can see the curve difference.
thanks
Melting Slicks
Joined: Jul 2006
Posts: 2,094
Likes: 5
From: The 7th layer of hell - Western Washington
Here is my dyno sheet - please keep in mind this is SAE corrected not actual HP/TQ, my actual numbers were 398/389. My numbers stay higher towards the end cause the Z06 heads/cam flow better on the top end than the LS1 components...
Are your headers jet-hot coated? I wonder how many other people with the same setup are having similar issues, could be an issue with the dynatech system...
Are your headers jet-hot coated? I wonder how many other people with the same setup are having similar issues, could be an issue with the dynatech system...
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Melting Slicks
Joined: Jul 2006
Posts: 2,094
Likes: 5
From: The 7th layer of hell - Western Washington
so you have the full dynatech setup with cats and x-pipe, but not jet hot coated... and are getting the same knock retard at the same RPM as me, but with an LS1...
I don't see how the honker could cause knock retard so it has to be the header system - now it's killing me, I would like to see if there are others with the same issue on the same headers, or if it's a header issue in general...
I don't see how the honker could cause knock retard so it has to be the header system - now it's killing me, I would like to see if there are others with the same issue on the same headers, or if it's a header issue in general...
Drifting
Joined: Nov 2003
Posts: 1,539
Likes: 3
From: South al
well these two motors are identical the Ls6 is gonna make more power ,each motor is uniquie in its own , ,just like our dna,I wouldnt look @ The guys Dyno Sheet for His Ls6 car & Make comparisons based off what your car is doing @ The dyno ,jmo
Team Owner
Joined: Nov 2001
Posts: 34,124
Likes: 105
From: Pensacola FL
2003 corvette
stock engine
dynatech supermax headers, cat and x-pipe
corsa pacecar exhaust
callaway honker intake
new plugs, wires and 93 octane gas.
somehow i was expecting bigger numbers before and after the tune.
what do you think? do these numbers seem low or have i been drinking the after market cool aid?
thanks for looking.
stock engine
dynatech supermax headers, cat and x-pipe
corsa pacecar exhaust
callaway honker intake
new plugs, wires and 93 octane gas.
somehow i was expecting bigger numbers before and after the tune.
what do you think? do these numbers seem low or have i been drinking the after market cool aid?
thanks for looking.
Did you get a baseline dyno? If not, let's say 300rwhp...that's a 38rwhp gain for LTs with cats, x-pipe, CAI and tune. I would have guessed about 7-10 more rwhp, but they're still not terrible numbers.
Team Owner
Joined: Nov 2001
Posts: 34,124
Likes: 105
From: Pensacola FL
So you picked up 50rwhp through an A4 with a CAI and a tune? That's...um...interesting.
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
Whats really funny is the 3.14 perf axle