fot
[Top] [All Lists]

[Fot] Spitfire race motor 1296, Dual or single valve springs?

To: fot@autox.team.net
Subject: [Fot] Spitfire race motor 1296, Dual or single valve springs?
From: George Harmuth <harmug@us.ibm.com>
Date: Tue, 19 Oct 2010 14:40:34 -0400
I've been wondering what's the best approach. I've always run double
springs as an insurance policy against a broken spring dropping a valve but
I have to say I've never broken a spring. Are there any other advantages to
doubles, enough to offset the mass penalty? Neither engine has a
particularly radical cam, .450 and .470, zero lash, and I don't like to rev
over 7200. I know springs are made of sterner stuff these days, should I
use single springs and if so any suggestions?

thanks
mike

63 Spitfire
_______________________________________________
fot@autox.team.net

http://www.fot-racing.com

Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums


<Prev in Thread] Current Thread [Next in Thread>
  • [Fot] Spitfire race motor 1296, Dual or single valve springs?, George Harmuth <=