Kevin Klepies wrote:

  Dear Paul
       I was looking at your drawing and I have afew questions: why do you 
want 1 3/8 dia inlets and outlets, why 1 3/8 thick
cores these cores are much more cost.because of there odd size. 
A 1''or 15/16 core i think would be o.k in double pass
system.Food for though a stock mazda 1989 rad I took out of car 
that my welding jig eng came out of is 16'' x21'' x1/2'' I cut
it up to measure in side and it was copper not alum. If you can 
come up with some dim. I would give you a price on building one
for your dyno eng.

Regards

Ed

techwelding@comcast.net

The 1 3/8" was to fit a wiggins coupling. If you are using hose
1 1/2" is the standard. The headers will have to be made larger 
for 1 1/2". Core thickness is not critical. You can use what ever
you can get.

I'll run the dyno engine with what I have. I'll let some one else
test the cross counter flow. If the dyno engine cools well and
it is promising with the turbo engine (months down the road) I might
try a smaller cross counter flow on the flight article.

Paul Lamar
 
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