Question on LS1 HP and Torque
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
GM answered the DYNO question way back when Ford failed to produce the fly wheel results that it represented by actual FLYWHEEL Dyno HP/TQ figures. There are NUMEOUS GM and C5 owner certified dyno result figures on a STOCK C5 LS engine output results.
Spend the $50-$75 DYNO Fee and base line your STOCK RWHP results. If you make any significant MODs younwill be able to actually see the Net gain from YOUR base line.
Spend the $50-$75 DYNO Fee and base line your STOCK RWHP results. If you make any significant MODs younwill be able to actually see the Net gain from YOUR base line.
Thread Starter
Racer
Joined: Jul 2004
Posts: 474
Likes: 0
From: Pa
GM answered the DYNO question way back when Ford failed to produce the fly wheel results that it represented by actual FLYWHEEL Dyno HP/TQ figures. There are NUMEOUS GM and C5 owner certified dyno result figures on a STOCK C5 LS engine output results.
Spend the $50-$75 DYNO Fee and base line your STOCK RWHP results. If you make any significant MODs younwill be able to actually see the Net gain from YOUR base line.
Spend the $50-$75 DYNO Fee and base line your STOCK RWHP results. If you make any significant MODs younwill be able to actually see the Net gain from YOUR base line.
Drifting
Joined: Aug 2008
Posts: 1,494
Likes: 146
From: Saint John's, Florida
Rough #'s
If I remember right, I read here a couple of weeks ago...
For a M6 (manual trans) car multiply the GM listed HP by .85 and you should roughly have the rear wheel HP.
For an A4 (automatic trans) car multiply by .80
So 350 at the GM# is 297.5 at the reer wheels for an M6 car and 280 for an A4 car.
Please feel free to chime in..
For a M6 (manual trans) car multiply the GM listed HP by .85 and you should roughly have the rear wheel HP.
For an A4 (automatic trans) car multiply by .80
So 350 at the GM# is 297.5 at the reer wheels for an M6 car and 280 for an A4 car.
Please feel free to chime in..
Advanced
Joined: Apr 2005
Posts: 74
Likes: 0
From: DEXTER NM
Great question and answers! After buying a GeTech Pro G-meter and then seeing what it reported as my RWHP, I was really shocked!...not even close to the 350 shown in the specs....but I figured the original 350 was flywheel (it HAD to be since my GeTech showed 267 hp!) 
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Thread Starter
Racer
Joined: Jul 2004
Posts: 474
Likes: 0
From: Pa
If I remember right, I read here a couple of weeks ago...
For a M6 (manual trans) car multiply the GM listed HP by .85 and you should roughly have the rear wheel HP.
For an A4 (automatic trans) car multiply by .80
So 350 at the GM# is 297.5 at the reer wheels for an M6 car and 280 for an A4 car.
Please feel free to chime in..
For a M6 (manual trans) car multiply the GM listed HP by .85 and you should roughly have the rear wheel HP.
For an A4 (automatic trans) car multiply by .80
So 350 at the GM# is 297.5 at the reer wheels for an M6 car and 280 for an A4 car.
Please feel free to chime in..
Safety Car
Joined: Oct 2004
Posts: 4,816
Likes: 132
From: Plano TX
If I remember right, I read here a couple of weeks ago...
For a M6 (manual trans) car multiply the GM listed HP by .85 and you should roughly have the rear wheel HP.
For an A4 (automatic trans) car multiply by .80
So 350 at the GM# is 297.5 at the reer wheels for an M6 car and 280 for an A4 car.
Please feel free to chime in..
For a M6 (manual trans) car multiply the GM listed HP by .85 and you should roughly have the rear wheel HP.
For an A4 (automatic trans) car multiply by .80
So 350 at the GM# is 297.5 at the reer wheels for an M6 car and 280 for an A4 car.
Please feel free to chime in..
Thats it... As Bill Curlee said,, you really need a baseline.. As I have said many many times. Dyno numbers vary.. I've seen them from 270rwhp on a mustang dyno to 345rwhp on a dynojet
Thread Starter
Racer
Joined: Jul 2004
Posts: 474
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From: Pa
Le Mans Master
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