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Bone Stock HP?

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Old Apr 21, 2005 | 02:15 AM
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Default Bone Stock HP?
I donno exact hp and torque of My 99 Z28
its 6 speed btw
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Old Apr 21, 2005 | 11:52 AM
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If it's stock it could be putting down anywhere from 290-315rwhp. It just depends on the dyno or the conditions. There are cars that don't make good power from the factory but they are rare.
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Old Apr 21, 2005 | 12:05 PM
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didnt get to dyno mine stock, but with a slp lid and magnaflow catback did 330/350 pulling timing
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Old Apr 21, 2005 | 02:23 PM
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I've had 2 LS1 cars. My 2001 did 309/319 bone stock and my 99 did 290/313 bone stock. Funny thing as both cars have had pretty similar mods and my 99 makes more power
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Old Apr 21, 2005 | 08:20 PM
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what about the data from Chevrolet, what they said about HP while selling these cars
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Old Apr 21, 2005 | 08:51 PM
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GM underrated these cars from the factory. Even the Vettes are a little underrated. All LS1's generally make the same power for the same model year.
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Old Apr 21, 2005 | 08:57 PM
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Originally Posted by WS-Sick
GM underrated these cars from the factory. Even the Vettes are a little underrated. All LS1's generally make the same power for the same model year.
Good I wanna know that same power
305 or 315?
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Old Apr 24, 2005 | 09:55 PM
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99 z28's were rated a 305 flywheel hp I believe.

01-02 z28's were rated at 315 flywheel hp.

Most get these numbers at the rear wheels though.
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Old Apr 25, 2005 | 04:26 PM
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I made 298hp/314torque with my bone stock SS M6.
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Old Apr 25, 2005 | 08:52 PM
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Originally Posted by SSCoulter
I made 298hp/314torque with my bone stock SS M6.
Your SS is nice man, is it still stock?
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Old Apr 25, 2005 | 09:27 PM
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Originally Posted by yekta
Your SS is nice man, is it still stock?
Thank you very much. My only mods are gears, Loud Mouth and lid. I plan on doing a cam/header/intake upgrade very soon.
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Old Apr 25, 2005 | 09:28 PM
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Originally Posted by SSCoulter
Thank you very much. My only mods are gears, Loud Mouth and lid. I plan on doing a cam/header/intake upgrade very soon.
How many hps now, did u took it to dyno?
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Old Apr 25, 2005 | 09:32 PM
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Originally Posted by yekta
How many hps now, did u took it to dyno?
It dynoed 308/324 after the loud mouth and lid. It was uncorrected however and was a very hot day. 98 degrees in the dyno shop if I recall. I'm not taking it again untill I get my cam/headers done. I just took it to the local track here and ran a 8.64 1/8 mile and based on a calculator I found online it said at my speed and weight for the car I should be making 324hp at the wheels.
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Old Apr 25, 2005 | 11:26 PM
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Originally Posted by SSCoulter
It dynoed 308/324 after the loud mouth and lid. It was uncorrected however and was a very hot day. 98 degrees in the dyno shop if I recall. I'm not taking it again untill I get my cam/headers done. I just took it to the local track here and ran a 8.64 1/8 mile and based on a calculator I found online it said at my speed and weight for the car I should be making 324hp at the wheels.
Hmm cool man, I never take it to dyno, it has various mods on it, but not that heavy, I am installing new rocker arms after that I ll go and dyno it, will put the pic of the paper into my cardomain when I do it, me and my friends expectation is 360-370hps, we'll see
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Old Apr 25, 2005 | 11:54 PM
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Scroll down the page, another thread just like this:

https://ls1tech.com/forums/dynamometer-results-comparisons/307931-anyone-have-stock-dyno-numbers.html
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Old Apr 25, 2005 | 11:59 PM
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wow, thanx
so everyone has different informations,
we will see what exactly we have in dyno then
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