Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Tach's - R. P. M.
View Single Post
  #7 (permalink)  
Old 01-06-2006, 06:08 PM
Rob Keller's Avatar
Rob Keller Rob Keller is offline
AKA:"SLOWRIDE66"take it easy!
Last wiki edit: How to post pictures on a forum
Last journal entry: 85 Suburban
Last photo:
Join Date: May 2004
Location: Central Florida U.S.A.
Age: 50
Posts: 4,296
Wiki Edits: 38

Thanks: 0
Thanked 1 Time in 1 Post
and what about a old time mechanical tach? with the cable its still measuring the RPM'S of the crankshaft

I know the electric tach comes off the dist but its measuring the crankshaft revolutions or showing the cranks RPM's

the crank turns 2:1 of the cam, so the cam is turning 1/2 the speed of the crank there for the tach must double time to produce a accurate RPM reading


"Illegitimis non carborundum"
Don't let the bastards grind you down!

Crankshaft Coalition Master List of Hotrodding Forums
Reply With Quote