Had the car Dynoed this weekend...Dissappointed...
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Senior Member
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Joined: Jun 2004
Posts: 647
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From: South Jersey
Car: 1991 RS Convertible
Engine: 96 LT1
Transmission: T5
Axle/Gears: 3.45 9-Bolt
Had the car Dynoed this weekend...Dissappointed...
Hey everyone,
Had the car dynoed this weekend. I did four pulls, the first one was the best. 158hp/255ftlbs corrected. I was pleased with the torque numbers, but the horsepower was a bit low from what I expected. My mods are:
305 TBI/5-Speed-
Headers
Intake w/ K&N
High-Flow Cat
Cat-Back
Hotter ignition
Aluminum Driveshaft
If you add 15% drivetrain loss to the dyno numbers, you get 181hp/293ftlbs. How can those mods add almost 40ft/lbs but only 11 hp? Does that sound right? I will post up the dyno chart which includes A/F ratios later today.
Had the car dynoed this weekend. I did four pulls, the first one was the best. 158hp/255ftlbs corrected. I was pleased with the torque numbers, but the horsepower was a bit low from what I expected. My mods are:
305 TBI/5-Speed-
Headers
Intake w/ K&N
High-Flow Cat
Cat-Back
Hotter ignition
Aluminum Driveshaft
If you add 15% drivetrain loss to the dyno numbers, you get 181hp/293ftlbs. How can those mods add almost 40ft/lbs but only 11 hp? Does that sound right? I will post up the dyno chart which includes A/F ratios later today.
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iTrader: (2)
Joined: Jan 2002
Posts: 9,962
Likes: 5
From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Had the car Dynoed this weekend...Dissappointed...
That sounds about right. You could probably sqeeze some more power out of it with tuning, but the stock 305 isnt exactly a performance piece to start with.
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