The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 03-27-2010, 01:32 AM   #1
old cruiser
Registered User
 
old cruiser's Avatar
 
Join Date: Mar 2010
Location: Camperdown Vic Australia
Posts: 230
tacho accuracy

Just fit an after market tacho , typical style power from ignition ,earth to ground and feed from -side of coil. Problem its reading inacurrate out by 600 rpm at idle then at about 2500rpm it reads around 4000. This is where it gets confusing when I hook up a tacho/dwell meter at the same time as after market one the after market one reads more accurratly? Any ideas whats going on?
thanks in advance
old cruiser is offline   Reply With Quote
 

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:51 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com