 Bouncy Tach, ...I tried the fix |
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| yeahmag |
 Apr 28 2010, 11:04 AM
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Advanced Member  Group: Members Posts: 2,421 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California 
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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 |
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Posts in this topic
yeahmag Bouncy Tach Apr 28 2010, 11:04 AM
Dr Evil Maybe halving the farads will help? Apr 28 2010, 11:13 AM yeahmag My EE friend thought that changing the type is pro... Apr 28 2010, 11:17 AM Dr Evil Where did you get the info on the capacitor? I tho... Apr 28 2010, 11:24 AM yeahmag It's just what the EE stock room on campus had... Apr 28 2010, 11:27 AM Dr Evil IIRC, the 2200uF was the one used to convert to a ... Apr 28 2010, 11:47 AM Vacca Rabite Mine also bounces in the 2056. I just figured it ... Apr 28 2010, 11:52 AM JamesM
So once I got my 2056cc built the tach could no l... Apr 28 2010, 11:53 AM
yeahmag
[quote name='yeahmag' post='1310428' date='Apr 28... Apr 28 2010, 11:58 AM JamesM I am using the 6AL as well. Check out the pic tha... May 11 2010, 11:22 AM tat2dphreak
:agree: same here
more aggressive I drive, more ... Apr 28 2010, 11:54 AM DNHunt I'm not sure if this helps (free advice, take ... Apr 28 2010, 01:02 PM Dr Evil Jumping a resistor makes some sense as well. It is... Apr 28 2010, 01:04 PM DNHunt Magic smoke is still contained (knock on wood). Apr 28 2010, 01:06 PM BIGKAT_83 The Tach is dampend with a pin coming off of the m... Apr 28 2010, 01:52 PM Frost My tach justo bounce then i start the car one day ... Apr 28 2010, 04:32 PM D1A3 Had a similar problem and found the connection on ... Apr 28 2010, 04:47 PM sgetsiv Remember that capacitors add in parallel. You can ... May 3 2010, 11:15 PM yeahmag After my PCA event on Sunday I noticed it's re... May 4 2010, 09:43 AM ClayPerrine Just send it to North Hollywood or Palo Alto and t... May 4 2010, 11:07 AM yeahmag Thanks, but with the Mallory 6AL doing the rev lim... May 4 2010, 11:16 AM Dr Evil There are variable capacitors. You could mount one... May 4 2010, 03:59 PM yeahmag Holy Crap! I was just making that up! I ha... May 4 2010, 04:12 PM Dr Evil That was part of the tuning mechanism of old schoo... May 4 2010, 10:24 PM sgetsiv If you are running carbs then...
I cured my bounc... May 10 2010, 11:48 PM Spoke The right capacitor is not an exact science. What ... May 11 2010, 07:40 AM yeahmag I'm guessing some of the reason for my tach ne... May 11 2010, 08:23 AM yeahmag Will do. Might pull it back out of the dash tonigh... May 11 2010, 11:24 AM  |
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