View Single Post
Old 07-15-2017, 02:50 PM   #11
Chris Hill
Senior Member
 
Join Date: Jan 2002
Posts: 653
Likes: 8
Liked 238 Times in 25 Posts
Default Re: Hollow stem valves

Quote:
Originally Posted by Rob Wright View Post
It generally just didn't look as smooth with more deflection near the nose and a little bit of drumming at the closing point. 150 lb less spring Force cleaned it all up and made it look beautiful.

High spring force is definitely not your friend all of the time.
Would you mind posting graphs of the data if available?

Chris Hill
Old valvetrain engineer
__________________
Chris Hill
https://ihmusedparts.com
Chris Hill is offline   Reply With Quote