X-Mozilla-Keys:                                                                                 
Marvin Kaye wrote:

I for one am ready to go to 1.5 inch Wiggins couplings.
Why suck up more HP and burn more fuel?

I'm anxious to see a picture of this Wiggins thingie.  I'm also curious to
know what would be wrong with 1.5" tubing ends with a rolled rib just in
from the end (ie, a beaded nipple) attached to high quality hoses with a
pair of equally high quality SS clamps at each end.  (See
http://www.competitioncams.com/gatorbrand/features.html for what I would
consider excellent clamps).  If the concern is that the hoses are the weak
link, make them a swap out item every other annual and don't worry about
them.

  <Marv>

My main objection to hose clamps on aluminum pipes is the aluminum
expands more than the stainless hose clamps and compresses the rubber. 
Eventually the rubber takes a set. Yes even silicon. This is
a possible leak if not a blown off hose. With a 1.5 inch ID hose you
are looking at at a seperating force of about 50 pounds when the 
cooling system pressure is 30 psi. It is kind of a wonder they work
at all. Actually the best type IMHO are the spring hose clamps used
by almost all automotive OEM's as they can expand and contract.

I will upload a drawing of the Wiggins tomorrow.

Paul Lamar
 
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