Bouncy Tach, ...I tried the fix |
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Bouncy Tach, ...I tried the fix |
yeahmag |
Apr 28 2010, 11:04 AM
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#1
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Advanced Member Group: Members Posts: 2,422 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California |
So once I got my 2056cc built the tach could no longer keep up and just flailed around worthlessly... Especially when running an autocross. So I finally got around to trying the 2200uF trick and now it's over damped... Sigh. Maybe I'll try a different variant of capacitor and see what happens.
Anybody else have a recommended type of capacitor for the application: http://en.wikipedia.org/wiki/Types_of_capacitor |
sgetsiv |
May 3 2010, 11:15 PM
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#2
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Former 914 Owner :( Group: Members Posts: 159 Joined: 20-June 08 From: Portland, OR Member No.: 9,192 Region Association: Pacific Northwest |
Remember that capacitors add in parallel. You can go from a 2200 uF cap to 2400 uF by wiring a 200 uF cap in parallel with the original cap. If they are electrolytic then they have a polarity and should be wired the same, + to + and - to -.
I just installed a 2315 engine in my ride and have the same bouncy tach issue. Need to get it dampened out so I'll be adding 200-400 uF at a time until I get the needle response I want. Steve |
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