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Re: [Fot] TR4 Valve guide shape

To: "Jim Gray" <toodamnfunky@comcast.net>, <fot@autox.team.net>
Subject: Re: [Fot] TR4 Valve guide shape
From: "Kas Kastner" <kaskas@cox.net>
Date: Tue, 2 Nov 2010 15:10:15 -0700
I've tried every manner possible and after running then in the dyno I think 
that grinding the thing flush gave the best results.  BUT, very difficult to 
really see any power difference.  I have been lead down the garden path so 
many times with flow bench numbers I don't believe any of them now. 
Experience will cover the testing. If you do a head job a couple times a 
year then I think that is the way.  You do remove part of the support for 
the valve so if you do not pay attention to valve gear and replace stuff in 
a reasonable time fashion then, I recommend making the top of the guide into 
a cone and then put them in after the porting job.

--------------------------------------------------
From: "Jim Gray" <toodamnfunky@comcast.net>
Sent: Tuesday, November 02, 2010 2:13 PM
To: "Friends of triumph" <fot@autox.team.net>
Subject: [Fot] TR4 Valve guide shape

> FoT
>
> I'm looking for opinions on how to treat the valve guides as
>
> they are in the intake and exhaust runners.
>
> I've seen bullet shaped guides and heard of guides shaved flush with
>
> port wall.
>
> Input is appreciated as always,
>
>
>
> Jim G
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