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12-23-2024, 08:08 PM
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#1 |
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Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,776
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Bouncy lagging tach
Pretty much like the title says. It bounces up incrementally as I wind up the motor. It also reads low most of the time. I've swapped the tach (Autometer) with another identical version. I've swapped the coil, I've tried a different ground. Tomorrow I'm going to swap the trigger wire to the HEI and I'm wondering what guage wire I should use for that as well as the 12V hot. I think it's all wired with 18 guage now. I can't think of anything left to try besides that, but if anyone has a suggestion please let me know. Thanks.... oh and I'm sure the tach itself is set for 8 cylinders too.
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Yesterday, 10:11 PM
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#2 |
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Registered User
Join Date: Jun 2019
Location: Chehalis, WA
Posts: 74
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Re: Bouncy lagging tach
Is the HEI getting a clean, direct 12V?
Does it steady if you turn on the headlights? |
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