How much horsepower can an L98 make without...
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Member
Joined: Apr 2001
Posts: 246
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From: Destin, FL
How much horsepower can an L98 make without...
89 L98
HP, and torque, without touching cam, heads, internals? Only opening air induction system (INtake porting, runners porting, plenum porting, air foil, mass air sensor screens removed, open element) and exhaust (1 5/8" headers with cutouts).
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89 GTA Trans Am L98
Wins: 2 Early 90s Stang GT, 4 wheeler, Chevy Malibu
Losses: New Camaro...bastard
HP, and torque, without touching cam, heads, internals? Only opening air induction system (INtake porting, runners porting, plenum porting, air foil, mass air sensor screens removed, open element) and exhaust (1 5/8" headers with cutouts).
------------------
89 GTA Trans Am L98
Wins: 2 Early 90s Stang GT, 4 wheeler, Chevy Malibu
Losses: New Camaro...bastard
Joined: Apr 2000
Posts: 1,535
Likes: 322
From: South Windsor, CT
Car: '89 GTA
Engine: ZZ6TPI
Transmission: T56
Axle/Gears: Borg Warner 3.70:1
Probably around 260-275. Heads and aftermarket runners would get you over 300.
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89 Transam GTA, 350TPI, auto, 3.27 rear, dual cats, gray.
Magnaflow cat-back,
K&N open element,
Best E.T. 14.63@95mph
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89 Transam GTA, 350TPI, auto, 3.27 rear, dual cats, gray.
Magnaflow cat-back,
K&N open element,
Best E.T. 14.63@95mph
Supreme Member
Joined: Apr 2000
Posts: 1,338
Likes: 0
From: Chander, Arizona USA
Car: 2006 Silverado 1500
Engine: 5.3L
Transmission: 4L60E
at best i'd say 300 hp, but a better question would be how fast can you get a stock L98 long block to go. that i'd say low 13's to high 12's but with alot of money tied up in transmission, torque converter, rear end, etc. getting every little thing as good as it can be is the difference between a well tuned car that's fast and a fast car with just alot of money into it.
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