Tach problems, 6 conversion |
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Tach problems, 6 conversion |
GulleyGulley |
Apr 13 2014, 07:03 AM
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#1
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Member Group: Members Posts: 67 Joined: 12-March 12 From: CNY Member No.: 14,243 Region Association: None |
Installed a 86 3.2 into my car with a tach from the donor. Everything works but the tach. It reads about double what it should. Any ideas why it's off?
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timothy_nd28 |
Apr 13 2014, 10:55 AM
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#2
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Advanced Member Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest |
You have many different options. You can buy a tach adapt, or follow my tach conversion thread (if you want to do it yourself) or buy a 911 tachometer or wait for my son to finish his tachometer conversion.
My son asked me for starting a weekly allowance. Instead of handing out free money, I asked him if he would be interested in converting tachometers. This past week, we worked together on converting a 914 tachometer over to a modern tachometer. I asked him what we should make this tach work for, and he responded 6 cylinder! I agreed, since there are some folks on here that swapped out their type 4 to a 6 cylinder. If you can wait a few months, I'm working on a totally new design which is universal for the 914 tachs and 911 tachs which will span from the late 60's to the early 80's. I'm using a new air core motor that is micro sized, and a better circuit that will make the tach more responsive and accurate thru out the whole rpm spectrum. |
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