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Re: [Fot] Speaking of porting and Polishing???

To: "Mark Eginton" <markconsultation@twcny.rr.com>
Subject: Re: [Fot] Speaking of porting and Polishing???
From: Bill Babcock <Billb@bnj.com>
Date: Sat, 28 Feb 2009 06:13:25 -1000
Cold here, very cold. And dreary as hell.

On Feb 28, 2009, at 5:22 AM, Mark Eginton wrote:

> In reading the competition preparation manual they mention polishing  
> intake
> manifolds. I thought I read or was told when building a V8 years ago  
> that
> polishing is no longer recommended because fuel condenses on the  
> manifold
> surface with laminar flow. A slight texture e.g. minor grind or  
> casting marks
> keeps a turbulant flow which keeps fuel atomized. I wonder also if  
> this is
> only for aluminum manifolds e.g. heat loss and if it extends inside  
> the head.
> thoughts???
>
> I am currently doing some port matching and casting removal on both  
> the head
> and TR3 manifold.
>
> Can't wait for spring - more snow in upstate NY - california  
> dream'n...
>
> M
>
> BTW I don't need a maui weather update Bill... ;o)
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Bill Babcock
Babcock & Jenkins
Billb@bnj.com
503.936.7660
www.bnj.com

Editor
Ke Nalu e-Magazine
Paddlesurfing's Web Journal

Bill@kenalu.com
www.kenalu.com
blog: www.ponohouse.com/ponoblog
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