[DeTomaso] PIpe sizing

[JDeRyke at aol.com]

The pipes as-received are 54mm or approx. 1-3/8". While this may be 
available in Europe, its not here. The vendors have come up with stainless steel 
replacement tubes that fit at reasonable prices, and that works better than 
the stock mild steel muffler tubing; first, stainless does not conduct heat 
well so heat into the cabin is reduced. Second, it's impervious to corrosion 
when we "forget" to change anti-freeze each year- permanent anti-freeze is 
not forever! 
I strongly advise NOT using copper or aluminum pipe for the straight 
sections because it will radically INCREASE the heat in the cockpit thru the floor 
and heavy insulation only partially fixes this. Using 1-1/4" copper 90 
degree sweat-solder fittings at the radiator and at the rear firewall, as 
substitutes for rare molded 90 degree rubber hoses is OK since their area is small 
and the fittings are away from the cockpit floor. Note these fittings are 
almost 1-1/2" OD so heating the hose ends in hot water expands & softens them 
enough to allow them to fit straight pieces of 1-3/8" Gates Green-stripe 
rubber hose. Good luck- J Deryke


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