James, from what I understand, wrapping the header helps with heat but it
shortens the life of the header. You may want to consider this if it is a
street car and just run the heat sheilds.
Mike Faggart
SEROC
>From: "James B. Horn" <jamesbhorn@outerbounds.net>
>Reply-To: "James B. Horn" <jamesbhorn@outerbounds.net>
>To: <datsun-roadsters@autox.team.net>, <bholland@hayes.ds.adp.com>
>Subject: Re: In General Comments
>Date: Thu, 3 May 2001 22:25:54 -0700
>
>When I got the great deal for the carb's ($150 Pair new) I assumed that
>this
>was a common occurrence. then I went looking for a manifold -- no luck, so
>I
>asked this remarkable machinist that I had the pleasure of knowing to make
>me adaptor plates. He machined out of 1" aluminum plate these two identical
>works of art. The bores exactly match the carb bore and the manifold bore,
>so each hole is eccentric and conical. I went with K&N filters and have
>room
>to the fender well. I also wrapped the exhaust manifold with fiberglass
>tape
>to try to cool it down. So now I am at the difficult stage.
>----- Original Message -----
>From: "Brian Hollands" <bholland@hayes.ds.adp.com>
>To: "James B. Horn" <jamesbhorn@outerbounds.net>
>Cc: "Datsun Roadster Mailing list" <datsun-roadsters@autox.team.net>
>Sent: Thursday, May 03, 2001 6:43 AM
>Subject: RE: In General Comments
>
>
> > I went looking for Weber info (as an alternative to the high cost of
>solex
> > carbs) and found very little. There is no Weber manifold for the U20 so
>you
> > have to have a solex manifold. The linkage works backwards, push
>instead
>of
> > pull. Neither of these are major problems. The general consensus from
> > those that I spoke to is that the Weber's can never quite get dialed in
> > right. I think this is likely a problem related to taking time to set
>them
> > up properly as they seem to run well on Z cars. The problem is that for
> > most application you can call the Weber tech line and they will give you
>a
> > set up that gets you in the ballpark. With the roadster they have no
>such
> > info to share. The flat spots and such that the Weber's experience in
>all
> > likelihood comes from not having the right emulsion tube (Jet block in
>solex
> > speak). Weber lists 16 different emulsion tubes at least a dozen of
>which
> > are possibilities for the roadster. With so many choices it seems
>certain
> > that you could find the right set up but it might take a very long time
>to
> > come up with it. It's also possible, though I would think unlikely,
>that
> > there isn't a good emulsion tube for the roadster. There just doesn't
>seem
> > to be much info out there.
> > BTW the 45 DCOE would be the equivalent of the 44PHH solex
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