View Single Post
Old 08-14-2017, 01:48 AM   #26
SAJ
Senior Member
 
SAJ's Avatar
 
Join Date: Jul 2010
Location: Auckland, New Zealand
Posts: 514
Default Re: Noisy metal timing gear cured by torsional damper

Sponsored Links (Register now to hide all advertisements)
Ha ha Bill. Yes noticed that but many are far too picky and love to jump on mistakes. As you said the heavier crank with weights lowers the frequency and in both my cars I suspect this may have moved the resonance into the driving range where it might not be heard at cruising speeds without the weights on.
Both cars have 26% Mitchell o/d s. So 55 mph is about 2000 rpm from memory in the roadster and 2100 rpm in the Tudor with V8 wheels- right on the critical revs for harmonic vibes.
.SAJ in NZ
SAJ is offline   Reply With Quote