tach reading too high
Thread Starter
Melting Slicks
Joined: Mar 2004
Posts: 3,365
Likes: 0
From: Farmers Branch TX
Cruise-In VI Veteran
St. Jude Donor '09
tach reading too high
Hello everyone, I wanted to find out about my tach readings, I have a 78, and my tach readings are way off, like it says 5000rpm at 30mph, and so forth. I pulled the needle off and set it to read correctly at idle, but still while crusing its way off. I dont have a tach filter on the car, is the filter a resistor or something that makes the tach read lower, or is the filter just to knock out erractic readings?
Thanks for any help.
--Chris
Thanks for any help.
--Chris
Race Director
Joined: Oct 2000
Posts: 17,102
Likes: 7
From: Fair Oaks, OK
Re: tach reading too high (Today's problem is..)
My tach acts squirrely sometimes, too. Mine will read what I believe to be correctly most of the time, but sometimes at slow idle or when the car is stopped and in gear it will read really low, like 100rpm or so. Give it a little gas and it perks right back up to where it belongs.
