Re: Exhaust manifold questions...

[DeWitt Harrison <de@aztek-eng.com>]

On Sun, 14 Dec 1997 09:18:58 -0500 (EST), Jeffrey Goggin wrote:
>[ ... ]
>Would I be better off using a Dialynx manifold (does it really deliver a
>performance improvement as claimed?) or making a two-piece manifold fit?
>I'd like to keep the costs in check, if at all possible, which means I'd
>really prefer to use Ben's old manifold but I'm willing to spend the money
>for a new one, if necessary...
>[ ... ]

I've been running the Dialynx but, with the flow bottlenecks still
choking my system, I can't report one way or the other on
performance yet.  However, I can tell you (a) it is built like a
brick shit house, (b) you have to do a little "custom" grinding
to get it to clear the intake manifold and (c) it will warp like
a wet board and you'll have to take it off and re-face it at least
once.

I haven't seen the two-piece, but I think that would be worth
a look in order to get away from the thermal stress/cracking
problems inherent in that oh-so-long hunk of I5 cast iron.

DeWitt Harrison    de@aztek-eng.com
Boulder, CO
88 5kcstq