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Horsepower estimates on build; Will I hit 13's?

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Old 07-07-2015, 06:27 PM
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Horsepower estimates on build; Will I hit 13's?

I have a 88 L98 IROC, here's the list of parts I'm bolting on

GM vortec heads 1.94/1.5 brand new from summit
Scoggin Dickey lower intake
Comp cams 1.6 roller tip rockers
BBK 3 pc underdrive pulleys
Hooker shorty headers
Hooker Hi-flow y pipe
24lb injectors
BBK adjustable fuel pressure regulator

Leaving everything else alone, no money for a cam right now, if I ever have to crack into the shortblock I will.

The car will be professionally tuned for 93 octane at a local shop with a chassis dyno

I'm just curious what you guys think the hp/torque possibility is with this combination. I know it will obviously be a low rpm torquer, with stock upper and runners.

I'm hoping for a 13.99, or 100mph trap speed... I'd be happy. It's a stock 700R4 and 3.27 gears, launching off the brake on street tires.
Old 07-08-2015, 07:19 AM
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: Horsepower estimates on build; Will I hit 13's?

Yes you should. If you don't smoke the tires off..
Old 07-08-2015, 08:23 AM
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Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
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Re: Horsepower estimates on build; Will I hit 13's?

Should be making somewhere around 300-320hp at the crank.

A bolt-on L98 with the stock heads should be solid 13's, for that matter, so should a LB9 as well as long as it doesn't have the peanut cam.

With vortec heads/base you should be able to run 13's without much issue.
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