Typical gains on Dyno
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 792
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From: ME
Typical gains on Dyno
With a regular LS1, Borla stingers, Magnaflow X pipe, fresh tune up, and a halltech intake what kind of hp gains might I expect from a dyno tune (with the vette doctors). I know every car is different, but what seems to be the trend?
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Why not ask them, They see stock car all the time...they know the range of typical HP gains with their tune. Base car RWHP is anywhere from 295 to around 320. You may see 325 to 350 rwhp.
Thread Starter
Burning Brakes
Joined: Oct 2004
Posts: 792
Likes: 19
From: ME
Originally Posted by Evil-Twin
Why not ask them, They see stock car all the time...they know the range of typical HP gains with their tune. Base car RWHP is anywhere from 295 to around 320. You may see 325 to 350 rwhp.
I did and the response I got was " hard to say what you'll get as every car is different...." I was hoping someone who had a dyno tune done on an LS1 with intake and exhaust only would chime in with their results....
Racer
Joined: Oct 2005
Posts: 427
Likes: 2
From: joplin mo
i have a99 6spd cpe with similar mods i baselined 308 hp and 315tq ended up with 330hp and 337tq after dynotune at 21st century muscle cars, but the numbers don't tell the whole story the improvement in the overall responsiveness is really a kick in the azz 
john
john
Drifting
Joined: Jun 2002
Posts: 1,847
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From: Iowa
Cruise-In IV Veteran
Cruise-In V Veteran
Originally Posted by Evil-Twin
Why not ask them, They see stock car all the time...they know the range of typical HP gains with their tune. Base car RWHP is anywhere from 295 to around 320. You may see 325 to 350 rwhp.
Now, using the factory CHP figure of 350 as a guide, it can therefore be easily calculated that there is a 16% driveline loss there, with the A4 automatic.
If there is someone claiming to have 325 to 350 rwhp from a "bone stock" A4 corvette, that would mean that at the crank, their Vette would be putting out 377 to 407 chp.
Somehow, I just don't see that as being very realistic. That would even be pushing the reality envelope if the car was equipped with a 6sp, instead of an A4.
Just my opinion, of course.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
There are few other factors to consider too. for eg. Corrected dyno numbers///
take a car in a shop at 80 degrees, dyno it
Drop the temp by introducing 30 degree air and you will get a 8 hp increase.Thats why your car runs better in the winter than in the summer.
Corrected dyno numbers will show true HP gains.
take a car in a shop at 80 degrees, dyno it
Drop the temp by introducing 30 degree air and you will get a 8 hp increase.Thats why your car runs better in the winter than in the summer.
Corrected dyno numbers will show true HP gains.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by MagikDraggin
I find your 'estimates' to be rather interesting. I just had a base line dyno on my blackwing intake / Z06 TI catback exhaust, otherwise bone stock '04 A4 coupe, and the figures are 291.5rwhp & 311rwtq.
Now, using the factory CHP figure of 350 as a guide, it can therefore be easily calculated that there is a 16% driveline loss there, with the A4 automatic.
If there is someone claiming to have 325 to 350 rwhp from a "bone stock" A4 corvette, that would mean that at the crank, their Vette would be putting out 377 to 407 chp.
Somehow, I just don't see that as being very realistic. That would even be pushing the reality envelope if the car was equipped with a 6sp, instead of an A4.
Just my opinion, of course.
Now, using the factory CHP figure of 350 as a guide, it can therefore be easily calculated that there is a 16% driveline loss there, with the A4 automatic.
If there is someone claiming to have 325 to 350 rwhp from a "bone stock" A4 corvette, that would mean that at the crank, their Vette would be putting out 377 to 407 chp.
Somehow, I just don't see that as being very realistic. That would even be pushing the reality envelope if the car was equipped with a 6sp, instead of an A4.
Just my opinion, of course.
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