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Old 01-02-2003, 07:37 PM   #1
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Hpi Rs4 3 Engine

I am putting a .15ss in place of my .15fe on my rs4 3.
My goal is to beat a stock traxxas 4-tec on parking lot draging.
Should this be all i need to do or will i need to change alot more on my car?
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Old 01-02-2003, 09:35 PM   #2
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Default .15ss in place of my .15fe on


If your talking about the Nitro 4-tec, then you may also need a 2 spd transmission on your car to level the playing field. Get the 13/18 clutchbell and matching spur gears and set the tranny to shift early after about 15' out. Should be enough to beat the Traxxas.

Good luck racing
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Old 01-04-2003, 06:21 PM   #3
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If you can change to a slide carburetor you will get much faster off the line acceleration as the air intake is a little bigger and the air flow is guided straight into the engine rather then around a bend as in the rotary valve type. He won't be able to keep up from the start.
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