Turbo manifold design.

[Shirley, Mark R]

Did you allow for thermal expansion of your flange?  Make the holes that 
the studs go through larger than the stud.  Use a washer head nut for
retention.

-----Original Message-----
From: Jörgen Karlsson [mailto:jurg at pp.sbbs.se]
Sent: Monday, January 08, 2001 2:05 AM
To: diy_efi at diy-efi.org
Subject: Turbo manifold design.


Hi!

I am sorry for wasting the bandwidh, but I know many of you guys know a lot
about this subject.

I have built a new manifold for my car, the stock manifolds are no good.
They crack and snap the header studs. The stock manifold has separate
flanges for each runner.

Should I use separate flanges or should I use one large flange?

The flange will only be in contact with the head on a small surface around
the ports.

Jörgen Karlsson
Gothenburg, Sweden

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