WS6 same mods more HP!
Thread Starter
Safety Car
Joined: Dec 2006
Posts: 4,188
Likes: 1
From: Chino California
St. Jude Donor '08-'09
WS6 same mods more HP!
Don't know what the hell is going on, but a buddy of mine has a WS6 with Kooks headers, just got a dyno tune, and is putting up over 360 HP. My 01 Coupe goes in for it's dyno tune tomorrow, but I'm starting out with 318 HP. Headers aren't going to give me THAT much of a bump up to match or beat his numbers. What the hell?
My car:
01 Coupe
6 speed
Halltech Stinger Intake
American Racing Headers
High flow cats
X pipe
Borla Stingers
His car:
02 WS6
6 speed
SLP intake
Kooks headers
after the headers unknown.
My car:
01 Coupe
6 speed
Halltech Stinger Intake
American Racing Headers
High flow cats
X pipe
Borla Stingers
His car:
02 WS6
6 speed
SLP intake
Kooks headers
after the headers unknown.
Le Mans Master
Joined: Sep 2006
Posts: 9,105
Likes: 166
From: PA
He says they are both 6spds.
I dont think theres a logical answer for that other than some cars do better than otheres and some dont.
Are you basing the dyno #'s off the same dyno, same day? There are some decent differences between just those 2 factors.
In my experience a Fbody 6spd loses approx 11-12% through the drivetrain and a c5 6spd loses approx 13-14% to the wheels. However the corvette is usually equal or better in some areas due to weight and aerodynamics.
Just go race him and have fun!
I dont think theres a logical answer for that other than some cars do better than otheres and some dont.
Are you basing the dyno #'s off the same dyno, same day? There are some decent differences between just those 2 factors.
In my experience a Fbody 6spd loses approx 11-12% through the drivetrain and a c5 6spd loses approx 13-14% to the wheels. However the corvette is usually equal or better in some areas due to weight and aerodynamics.
Just go race him and have fun!
Melting Slicks
Joined: Jun 2006
Posts: 2,983
Likes: 6
From: Redondo Beach Ca
The tune, as well as the things mentioned above could be the difference. I'm about to put my car back on the dyno next month since the weather is cooler and then see if I gain any hp. I'm also going to eventually try out another tuners dyno, just to see again if their are any differences. 
Jason
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
There is more drivetrain loss due to the C5's independent rear suspension vs the F body's solid rear axle.. Also, there is more horsepower loss on an automatic vs a manual transmission.. Last but not least.. The WS6 and CamaroSS both have ram air with the same exact LS1 as the C5.. GM downplayed the horsepower ratings on the F bodys, so yes they are under rated... The F body has 150-175lbs of extra fat to push around and is less aerodynamic which makes up for the drivetrain loss at the track. Go to the track and it will be a good race.. I take dyno results with a grain of salt.. Members on this Forum have quoted Dyno numbers on a bone stock C5 from 270rwhp to 354rwhp.. Different dynos give different numbers.. There are also SAE, standard, and SAE corrected settings for the dyno operator to choose .. These settings make totally different numbers.. Take it to the track Jack
Last edited by David426; Nov 24, 2007 at 12:16 PM.
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
The tune, as well as the things mentioned above could be the difference. I'm about to put my car back on the dyno next month since the weather is cooler and then see if I gain any hp. I'm also going to eventually try out another tuners dyno, just to see again if their are any differences. Jason
Regarding the WS6, I guess I have a hard time believing 360 rwhp with just a set of headers. I've never seen so much BS in my life as people talking about their dyno results.
Ed
Last edited by C5XTASY; Nov 25, 2007 at 09:50 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Former Vendor
Joined: Apr 2007
Posts: 1,331
Likes: 4
From: Jacksonville Florida
Don't know what the hell is going on, but a buddy of mine has a WS6 with Kooks headers, just got a dyno tune, and is putting up over 360 HP. My 01 Coupe goes in for it's dyno tune tomorrow, but I'm starting out with 318 HP. Headers aren't going to give me THAT much of a bump up to match or beat his numbers. What the hell?
My car:
01 Coupe
6 speed
Halltech Stinger Intake
American Racing Headers
High flow cats
X pipe
Borla Stingers
His car:
02 WS6
6 speed
SLP intake
Kooks headers
after the headers unknown.
My car:
01 Coupe
6 speed
Halltech Stinger Intake
American Racing Headers
High flow cats
X pipe
Borla Stingers
His car:
02 WS6
6 speed
SLP intake
Kooks headers
after the headers unknown.
Second, assuming a 15% drivetrain loss on a 6 speed, that would mean your buddy is makeing 414 crank horsepower, which is a 94 horsepower increase over the stock rated 320, no way headers alone are gonna give him 94 horsepower
Drifting
Joined: Jan 2000
Posts: 1,660
Likes: 9
From: Charlotte, NC
I had a '98 SS Camaro that dynod 361-rwhp. I had intake, exhaust, GM hotcam, and LT headers. Your friend's car sounds pretty incredible and would be possibly the highest hp LS1 with just those modifications. This would lead me to think he failed to mention one of his modifcations to you or the dyno was not corrected for the weather and he made the pull on a cold Saturday morning.
FYI - There was no 'ram air' effect on the SS Camaro. Yes the plumbing was there and that is how GM marketed it, but the aerodynamics of the hood actually caused air to slide over the hood's intake.
I could wash my car and do a high-speed run to dry it off. Without fail, the hood would be completely dry except for some water drops in front of the intake because that is the only place where the air passes over the hood instead of along its surface.
I saw the same effects when it snowed on my car. All of the snow gradually blew off the hood as my speed increased, except for the portion directly in front of the intake. I miss that car.
FYI - There was no 'ram air' effect on the SS Camaro. Yes the plumbing was there and that is how GM marketed it, but the aerodynamics of the hood actually caused air to slide over the hood's intake.
I could wash my car and do a high-speed run to dry it off. Without fail, the hood would be completely dry except for some water drops in front of the intake because that is the only place where the air passes over the hood instead of along its surface.
I saw the same effects when it snowed on my car. All of the snow gradually blew off the hood as my speed increased, except for the portion directly in front of the intake. I miss that car.
