 Hyfire and silver dot tach - Working!, Mod your tach to work with a hyfire box |
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| agrump |
 Apr 10 2005, 05:31 AM
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#1
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Member  Group: Members Posts: 141 Joined: 13-November 04 From: Atlanta, GA Member No.: 3,103  |
My early silver dot tach did not work at all once I installed a hyfire ignition box. This is caused by the fact that the stock tack is looking for a high voltage signal that no longer exist. I was able to modify the tach to run off of the Hyfire's tach port by placing a jumper over the initial signal resister. As a side note I experimented with the hyfire's tach testor and found that the stock tach is pretty acurate.
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Replies
| agrump |
Apr 11 2005, 05:39 AM
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#2
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Member Group: Members Posts: 141 Joined: 13-November 04 From: Atlanta, GA Member No.: 3,103 |
synthesisdv, it still bounces around like a squirrel in the middle of the road. That could probably be cured by place a capacitor across the needle leads but I didn't think to try it. It's kind of tough to see what is happening on the circuit board because it wraps around the needle mechanism.
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Posts in this topic
agrump Hyfire and silver dot tach - Working! Apr 10 2005, 05:31 AM
synthesisdv that's great.
I could never get mine to work ... Apr 10 2005, 06:21 AM Aaron Cox my hero!!!! ... Apr 10 2005, 10:26 AM Aaron Cox hmmm... mine looks different....
could be because ... Apr 10 2005, 02:55 PM synthesisdv hey dean,
you seem to know your way around a circ... Apr 11 2005, 05:46 AM Joe Ricard I don't think I will ever go back to stock tac... Apr 11 2005, 10:31 AM Aaron Cox ill be doing this on friday.
i didnt know the hyf... Apr 11 2005, 10:39 AM maf914 Okay, for the benefit of those of us who have neve... Apr 11 2005, 11:05 AM
Aaron Cox Apr 11 2005, 11:07 AM |
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