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Kooks dyno'd

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Old Jul 9, 2004 | 03:47 PM
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Default 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
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Old Jul 10, 2004 | 11:33 PM
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nice #s

kooks rock!!! best c-5 headers on the market!!!
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Old Jul 11, 2004 | 12:31 AM
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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.

Last edited by Tsab; Jul 11, 2004 at 12:34 AM.
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Old Jul 11, 2004 | 03:35 AM
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Originally Posted by brent eb02
nice #s

kooks rock!!! best c-5 headers on the market!!!
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Old Jul 11, 2004 | 04:14 PM
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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.
The car is actually still very quiet with no interior resinance which is exactly what I wanted.Already own big H/C open exhaust cars,so this car is staying quiet.
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Old Jul 12, 2004 | 09:24 AM
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Originally Posted by brent eb02
nice #s

kooks rock!!! best c-5 headers on the market!!!






Thats debatable.
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Old Jul 14, 2004 | 05:35 PM
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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
Reply
Old Jul 14, 2004 | 09:43 PM
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Originally Posted by Slowhawk
Time to install the Procharger
That's not debatable
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Old Jul 14, 2004 | 11:59 PM
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yea it is cause it took 11 hours for my tech to instal it. might as well pull the motor.
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Old Jul 15, 2004 | 03:15 AM
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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.
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Old Jul 15, 2004 | 11:44 AM
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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.
I do them in 5 hours now
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Old Jul 15, 2004 | 12:25 PM
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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?
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Old Jul 15, 2004 | 12:36 PM
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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?
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
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Old Jul 15, 2004 | 06:32 PM
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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
I wasn't knocking your gains, it's great to see increases that justify the cash spent.
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.
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Old Jul 17, 2004 | 11:54 AM
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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--
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Old Jul 17, 2004 | 02:32 PM
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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--
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
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Old Jul 19, 2004 | 03:20 PM
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I went from 308.7 RWHP ON 99 A4 installed Kooks 1 3/4, cats x-pipe,Vararam and a tune. Results......321.5 rwhp :blush: So gaining 10 rwhp with just having no cats, I think is true.
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Old Jul 20, 2004 | 09:12 PM
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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
Blower now? Niiiiiiiiice... That should get ya down the freeway at a brisk pace!
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Old Jul 21, 2004 | 12:09 AM
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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.
I hope he didnt charge you 11 hours labor as I have seen it done in under 3 hours.
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Old Jul 21, 2004 | 01:18 AM
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Kooks are the best header out there IMO .
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