1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Street porting

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Old May 10, 2002 | 09:39 AM
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Street porting

Hi, i'm sure this has been asked, but i can't find it anywhere. What type of power increase can i expect when i get my 12A rebuilt and street ported
(2nd stage) I've heard from 15hp to 35hp. Any help is usefull, thanx.

Oh, and this is useing the stock carb for now with a high flow exhaust.
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Old May 10, 2002 | 09:53 AM
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Use the search option(right-top corner).

I think it was around 180 HP with the right intake, carb ect.
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Old May 10, 2002 | 01:39 PM
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High flow exhaust with stock Nikki will net about 130 HP at the flywheel...it's been dyno-proven by moi.... Of course, my ignition had been optimized with Accel 300+ racing wires and a couple of Jacobs' chrome 40K coils....
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Old May 10, 2002 | 04:25 PM
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From: Louisville KY
Well I just got mine done from pineapple racing stage 3 street ported. Its got some power, but the intake and exhaust is whats holding it back. Im guessing about 140 hp. maybe less. but with the stage 2 and exhaust maybe a bout 140 hp. Intake is the most important. Im working on that myself kinda out of money though.
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