Manualy operated kickdown pedal idea. - Hot Rod Forum : Hotrodders Bulletin Board
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Old 01-29-2004, 07:13 PM
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Manualy operated kickdown pedal idea.

So I just got through installing a Weland manifold and two barrel holley on my dodge W150 with a 318 motor and NP203 tranny. Now, due to the fact that the Action Plus manifold places the carb a few inches higher, the stock kickdown linkage is to short to reach the side of the carb. I was thinking of all the ways to elongate it to fit when I came up with this idea:

Connect some kind of pull cable (throttle cable, mountain bike brake cable, twine, etc) to the lever on the tranny, and the other end to a small pedal about where a clutch would be.

This would theoretically give me infinite control over when it downshifts, right? Is there some key piece of information about kickdowns that I am missing here, or would this work flawlessly?

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Old 01-30-2004, 12:01 AM
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Almost anything can be done, the question is: Is it worth it. I your case it's not really worth the trouble. You'd be far better of adding a piece to the linkage and forget about it.
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Old 01-30-2004, 08:43 PM
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The biggest problem with this idea is that the kickdown (aka throttle valve ) linkage does not just trigger kick down. It's position is also one of the things that regulates part throttle upshift points and fluid pressures. A tranny without a properly connected and adjusted KD linkage will burn itself up in short order.
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