 Lets talk tachs |
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| Ductech |
 Apr 19 2011, 12:58 PM
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#1
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Member  Group: Members Posts: 356 Joined: 16-July 10 From: AridZona Member No.: 11,949 Region Association: Southwest Region  |
I just finished up my ej22 subaru swap. after drag racing a rx7 in the boonies and self destructing my shifter, i have stopped to take a look at all the little stuffs. now my tach is a little bouncy compared to a nice new digital being fed by an obd2 car computer. As the wiring i used was the original tach signal wire, im wondering if a little bit of noise is most likely the issue or if the tachs on these were never that amazing in the first place. Thanks for the your help guys.
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| jaxdream |
Apr 20 2011, 07:27 AM
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#2
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Senior Member Group: Members Posts: 974 Joined: 8-July 08 From: North Central Tennessee Member No.: 9,270 Region Association: South East States |
Spoke , you say place the 2200uF cap across the needle winding , can this be done on the conections on the back , or does one need to dismantle the tach and solder the cap inside ??? Sounds like a great remedy. (IMG:style_emoticons/default/piratenanner.gif)
Jack / Jaxdream |
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| Spoke |
Apr 20 2011, 09:54 AM
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#3
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Jerry Group: Members Posts: 7,052 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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QUOTE(jaxdream @ Apr 20 2011, 09:27 AM)  Spoke , you say place the 2200uF cap across the needle winding , can this be done on the conections on the back , or does one need to dismantle the tach and solder the cap inside ??? Sounds like a great remedy. (IMG:style_emoticons/default/piratenanner.gif) Jack / Jaxdream You have to open the tach to get to the winding of the needle. Here's a pic of how I mounted the cap. Attached image(s) 
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Posts in this topic
Ductech Lets talk tachs Apr 19 2011, 12:58 PM
SirAndy Do you still have the stock relay board?
A bouncy... Apr 19 2011, 01:54 PM Ductech Thanks for the reply, alas i did eliminate the rel... Apr 19 2011, 01:59 PM whatabout1 The tachs were always great but are now 30 + yrs o... Apr 19 2011, 07:46 PM Spoke Can you define bouncy? At steady RPM, is the tach ... Apr 19 2011, 07:52 PM
DBCooper If you're making things more modern anyway why... Apr 20 2011, 11:12 AM
chuckc
I just finished up my ej22 subaru swap. after dra... Apr 20 2011, 03:11 PM |
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