Do these things work?

[Larry" <rocco16v@netzero.com (Larry)]

Heat conduction in the engine compartment is by two means; convection and
conduction.  There is so little by radiation that you can virually disregard
it.
(radiant heat only becomes a factor when the heat source is above 'black'
heat and into the "glowing red" range...you turbo owners may take notes)
I would think Brian's suggestion of a heat shield between the intake and
exhaust is one that would be of greatest benefit.

Larry

----- Original Message -----
From: Brian Haygood <scirious@hotmail.com>
To: Scirocco-Al <scirocco-Al@insight.rr.com>; <Scirocco-l@scirocco.org>;
<flaatr@yahoo.com>
Sent: Friday, March 01, 2002 3:31 PM
Subject: Re: Do these things work?


> On our race cars, the intake side of thing doesn't usually get above
200°F,
> and since that is where this thing goes, I doubt it would have temp
trouble.
> I don't see how it could work much though, just because I think more heat
> comes into the intake via radiation than conduction via the head.  I guess
> it only claims 3hp gain, and I guess I could see that.  I'd be more
> interested in seeing the last part of the intake manifold made out of some
> composite, and a heat shield between exhaust and intake.  Probably still
not
> worth the trouble, but who knows.
>
> What do the rest of you think?  Is heat conduction into the intake
manifold
> significant?  How do you suppose it compares with radiant heating.  I
guess
> a simple test on a hot manifold with an IR gun would tell you how hot the
> ends of the manifold get.
>
> Just ruminating.
>
> BH
>
>
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
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>

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