<VV> Manifold heat soak

[John David Thomson]

>From Mr. Warren Leveque's solo articles, please note the following.



"Most conspicuous perhaps are the melted aluminum, correctly tuned, headers for the Stinger race car. They were aluminum from about a foot from the flange through the megaphones. They look like candle wax now. The idea was to reduce the cantilevered, pendulum weight.; still a good idea. I also used aluminum to build a flowmaster type muffler for the E/M LeVair Spyder. Did you know that a muffler pulses like a beating heart and that aluminum has no modulus of elasticity? The same cracking due to flexing doomed the beautiful all aluminum DeDion rear suspension. The aluminum hub carriers on the Velociraptor formula car suffered the same fate."
regards, Dave.....................
----- Original Message -----
From: Gary & Susan Lowell <sglowell10 at sbcglobal.net>
Date: Saturday, August 4, 2007 8:38 pm
Subject: Re: <VV> Manifold heat soak
To: Virtual Vairs <virtualvairs at corvair.org>

> Pontiac in 1963 on the 50 special super duty versions of 
> their  
> Catalina had aluminum exhaust manifolds.
> A friend of mine had one of these that he bought from Packer 
> Pontiac  
> after the 63 Drag racing season. Drove it on the street for 2 
> years  
> before he bought a Corvette.
> He never had a problem with the exhaust manafolds - just gas 
> pump  
> jockeys wanting to "clean" the Plexiglas windows or leaning on 
> the  
> aluminum fenders. It was the fastest accelerating car I have 
> ever  
> been in. Faster than another friends 67 - 427 Corvette
> Check it out:  http://auto.howstuffworks.com/1963-pontiac-
> super- 
> duty-421.htm
> Gary
> 65 Corsa
> Detroit
> 
> 
> On Aug 4, 2007, at 1:16 PM, Ron wrote:
> 
> > The aftermarket will make and sell anything that people will buy.
> >
> > RonH
> >
> > ----- Original Message ----- From: "Crawford Rose"  
> > <crawfordrose at msn.com>
> > To: <JVHRoberts at aol.com>; <virtualvairs at corvair.org>
> > Sent: Saturday, August 04, 2007 7:26 AM
> > Subject: Re: <VV> Manifold heat soak
> >
> >
> >> Look, if it doesn't work, then why did the aftermarket supply 
> and  
> >> market an aluminum product for that purpose? It should work 
> for a  
> >> normally aspirated motor with a 460 valve temps; I don't see 
> why  
> >> it would "fail". It might get soft; it might leak; it 
> might  
> >> corrode quickly. However, this is not to say it won't work to 
> pass  
> >> exhaust to the muffler. Using that reasoning, my 
> turbocharger  
> >> bearing housing should be molten scrap, adjacent to the 600 
> degree  
> >> turbo exhaust, after a hard run.
> >> Crawford Rose
> >>  ----- Original Message -----  From: JVHRoberts at aol.com
> >>  To: crawfordrose at msn.com ; virtualvairs at corvair.org
> >>  Sent: Saturday, August 04, 2007 6:58 AM
> >>  Subject: Re: <VV> Manifold heat soak
> >>
> >>
> >>  Sure, then you'd have cast aluminum in the shape of the 
> lower  
> >> shrouds. <G>
> >>
> >>  In a message dated 8/3/2007 9:08:34 PM Eastern Daylight 
> Time,  
> >> crawfordrose at msn.com writes:
> >>    Manifolds are iron, lead to heat soak? 
> Maybe the vendors would  
> >> cast them in
> >>    aluminum for us!
> >>
> >>    Crawford
> >>
> >>
> >>
> >>
> >>
> >>
> >> --------------------------------------------------------------
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