Thread: Tach accuracy question
View Single Post
  #1 (permalink)  
Old 10-21-2003, 06:38 PM
Tony Radford's Avatar
Tony Radford Tony Radford is offline
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2002
Location: Dacula, (Atlanta), GA
Cobra Make, Engine: Unique 427 SC, Southern Automotive 427W Stroker
Posts: 1,649
Not Ranked     
Default Tach accuracy question
I'm running the MSD 6A contoller, MSD distributor and coil. My SW tach has operated correctly in the past, but when my engine was replaced, a new MSD distributor with a smaller diameter cap (the old distributor interfered with the new intake manifold) was installed. Now my tach has a 1,000 RPM higher reading and it won't zero. The tech at MSD told me that I needed an MSD 8920 tach adapter ($50) to fix the problem. Does this make sense? The wiring went back the same way it came off and the parts are still all MSD. I hate to drop the bucks if I don't need to. Any suggestions?
__________________
After a good hard ride.....oil pressure is over 50, temp is below 190, she idles and no new dents. LIFE IS GOOD!
Reply With Quote