<VV> Manifold heat soak

[Crawford Rose]

The footprint guys at Eelco made corvair aluminum exhaust manifolds.  I 
think that these same materials would have to fair at least as well as the 
aluminum heads exposed to the same heat levels!!!
Crawford Rose

----- Original Message ----- 
From: "John Kepler" <jekepler at amplex.net>
To: "'Crawford Rose'" <crawfordrose at msn.com>; <virtualvairs at corvair.org>
Sent: Friday, August 03, 2007 8:47 PM
Subject: RE: <VV> Manifold heat soak


>
>
> Manifolds are iron, lead to heat soak? Maybe the vendors would cast them 
> in
> aluminum for us!
>
> Crawford
>
> The only place I've ever seen an aluminum exhaust manifold was on a boat
> motor where they could be cooled with LOTS of water.....otherwise they 
> just
> melt/burn!  FWIW, an aluminum sauce pan full of boiling water has already
> lost 80% of its strength....it's a good material, but it has limits, and 
> an
> exhaust manifold exceeds them by several orders of magnitude!
>
> John
>
>
>