Kooks dyno'd
Thread Starter
Former Vendor
Joined: Jun 2002
Posts: 2,045
Likes: 3
From: Bridgewater Ma
Kooks dyno'd
Before #'s were 325hp/345tq with Vararam and Z06 cat back,LS1 Edit tuned
Just swapped in Kook 1 7/8 longtubes and there 3" X pipe without Cats and made 345hp/365tq with A/F at 12.3-1 across the board.
Gained power everywhere.
Car started at 308hp/330tq stock
LS1 edit tuned and Vararam =325hp/345tq
add Kooks with no more tuning= 345hp/365tq
Dyno runs were on different days but with engine at full temp(180-190) and 3 back to back runs.No freaky high # run
Time to install the Procharger
Just swapped in Kook 1 7/8 longtubes and there 3" X pipe without Cats and made 345hp/365tq with A/F at 12.3-1 across the board.
Gained power everywhere.
Car started at 308hp/330tq stock
LS1 edit tuned and Vararam =325hp/345tq
add Kooks with no more tuning= 345hp/365tq
Dyno runs were on different days but with engine at full temp(180-190) and 3 back to back runs.No freaky high # run
Time to install the Procharger
Safety Car
Joined: Aug 2003
Posts: 4,988
Likes: 16
From: Hooterville, NJ
Kooks How does the car sound now? I know I was very surprized how good it sounded when I got it back with the Kooks and 3" intermediate with "x" pipe.
How does the car sound now? I know I was very surprized how good it sounded when I got it back with the Kooks and 3" intermediate with "x" pipe.
Last edited by Tsab; Jul 11, 2004 at 12:34 AM.
Drifting
Joined: Nov 2002
Posts: 1,708
Likes: 2
From: IF YOUR BIG DOLLAR PROJECT DOESN'T RUN 9'S OR BETTER ....BURN IT ! SHUT YOUR MOUTH AND GRAB A LANE ! CHICAGO IL. -------- HOME OF THE FASTEST STREETCARS BARNONE !
Originally Posted by brent eb02
nice #skooks rock!!! best c-5 headers on the market!!!
Thread Starter
Former Vendor
Joined: Jun 2002
Posts: 2,045
Likes: 3
From: Bridgewater Ma
Originally Posted by Tsab
Kooks How does the car sound now? I know I was very surprized how good it sounded when I got it back with the Kooks and 3" intermediate with "x" pipe.
How does the car sound now? I know I was very surprized how good it sounded when I got it back with the Kooks and 3" intermediate with "x" pipe.
Le Mans Master
Joined: Oct 2002
Posts: 6,799
Likes: 11
From: dudley MA
Originally Posted by Slowhawk
Before #'s were 325hp/345tq with Vararam and Z06 cat back,LS1 Edit tuned
Just swapped in Kook 1 7/8 longtubes and there 3" X pipe without Cats and made 345hp/365tq with A/F at 12.3-1 across the board.
Gained power everywhere.
Car started at 308hp/330tq stock
LS1 edit tuned and Vararam =325hp/345tq
add Kooks with no more tuning= 345hp/365tq
Dyno runs were on different days but with engine at full temp(180-190) and 3 back to back runs.No freaky high # run
Time to install the Procharger
Just swapped in Kook 1 7/8 longtubes and there 3" X pipe without Cats and made 345hp/365tq with A/F at 12.3-1 across the board.
Gained power everywhere.
Car started at 308hp/330tq stock
LS1 edit tuned and Vararam =325hp/345tq
add Kooks with no more tuning= 345hp/365tq
Dyno runs were on different days but with engine at full temp(180-190) and 3 back to back runs.No freaky high # run
Time to install the Procharger
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Le Mans Master
Joined: Jun 2004
Posts: 6,752
Likes: 3
From: Bethlehem PA
I might be missing something here. It appears as though you ran your original dyno through cats. Then we see a dyno with the "kooks" and also no cats which should be good for an immediate 10 hp or so increase.
Was the original dyno run with or without cats?
Was the original dyno run with or without cats?
Thread Starter
Former Vendor
Joined: Jun 2002
Posts: 2,045
Likes: 3
From: Bridgewater Ma
Originally Posted by simpleman68
I might be missing something here. It appears as though you ran your original dyno through cats. Then we see a dyno with the "kooks" and also no cats which should be good for an immediate 10 hp or so increase.
Was the original dyno run with or without cats?
Was the original dyno run with or without cats?
Le Mans Master
Joined: Jun 2004
Posts: 6,752
Likes: 3
From: Bethlehem PA
Originally Posted by Slowhawk
Your actually not missing anything.Of course the original dyno was with stock exhaust with stock Cats.I really don't think running the Kook cats will take out 10hp on a stock car.If I wanted to throw big #'s out,I would cool the car down and lean it out.That is easilly another 15rwhp.Instead I just hot pulled over and over till the temp hit 230 degree's with a 160 T-stat
Just wondered what the difference would have been with cats after Kooks. I thought cats were good for about 10 ponies.
I've been wanting to gut mine out, just not sure how difficult it is or if it's worth the extra noise.
Melting Slicks
Joined: Oct 2002
Posts: 2,855
Likes: 0
The cats off should be 10rw anyway and that means only 10rwhp gained with the kooks, additional tuning should bring out a good bit more, but it seems you have basically a bolt on car with 1 7/8" which is probably not optimal with a basically stock motor but the more you add to you motor the more power you will realize from a 1 7/8" header--I probably would have used 1 3/4" unless I planned on going nuts later which of course I did and everyone else does as well--bottom line you have a system that will grow with you--
Thread Starter
Former Vendor
Joined: Jun 2002
Posts: 2,045
Likes: 3
From: Bridgewater Ma
Originally Posted by NEPTUNEBILL
The cats off should be 10rw anyway and that means only 10rwhp gained with the kooks, additional tuning should bring out a good bit more, but it seems you have basically a bolt on car with 1 7/8" which is probably not optimal with a basically stock motor but the more you add to you motor the more power you will realize from a 1 7/8" header--I probably would have used 1 3/4" unless I planned on going nuts later which of course I did and everyone else does as well--bottom line you have a system that will grow with you-- You guy's need to relieze these are only dyno #'s which mean absolutely nothing on the street. That 12.3 A/F on the dyno was actually 13-1 on the street(I have a wideband).So if I tuned it to a better dyno # with the typical 13.2-1 the car would be too lean on the street and KR would knock down the HP
Le Mans Master
Joined: Jun 2004
Posts: 6,752
Likes: 3
From: Bethlehem PA
Originally Posted by Slowhawk
The 1 7/8's are there because now there is a blower on the car
You guy's need to relieze these are only dyno #'s which mean absolutely nothing on the street. That 12.3 A/F on the dyno was actually 13-1 on the street(I have a wideband).So if I tuned it to a better dyno # with the typical 13.2-1 the car would be too lean on the street and KR would knock down the HP
You guy's need to relieze these are only dyno #'s which mean absolutely nothing on the street. That 12.3 A/F on the dyno was actually 13-1 on the street(I have a wideband).So if I tuned it to a better dyno # with the typical 13.2-1 the car would be too lean on the street and KR would knock down the HP
Le Mans Master
Joined: Jul 2002
Posts: 6,147
Likes: 32
From: Dallas TX
Originally Posted by S1K C5
yea it is cause it took 11 hours for my tech to instal it. might as well pull the motor.
as I have seen it done in under 3 hours.
