[Fot] TR3 / 4 Piston to Wall clearance

[Norlin Engineering]

Steve

While I can't respond with a specific recommendation for the TR, I can speak
from experience that it depends upon the type of oil you are using.  Years
ago I had a well worn Formula Ford.  I raced it with Valvoline 20-50
conventional oil with no problems.  I got talked into trying some 20-50
Amsoil synthetic to reduce friction, etc.  The blow by was so great that I
blew out all the oil from the dry sump tank in just a few laps.

Jim Norlin

-----Original Message-----
From: fot-bounces at autox.team.net [mailto:fot-bounces at autox.team.net] On
Behalf Of Steven Belfer
Sent: Friday, October 31, 2008 9:59 AM
To: FOT
Subject: [Fot] TR3 / 4 Piston to Wall clearance


I have a well used race motor in the machine shop.  It's got Hepolite
Powermax cast pistons and 87mm sleves that have seen many races. The liners
may need a bit more than a light honing to freshen them
up.  What would you accept as the max allowable P to W clearance? I don't
really want to buy new liners if I don't have to.



~Steve
Fot mailing list
Fot at autox.team.net
http://autox.team.net/mailman/listinfo/fot