Paul, while we are thinking about CCF radiators, what thickness
aluminum would you suggest for the end tanks and pressure bottle.
Looks like a good winter project.
C. Smith

0.049" if you have a good tig welder.

BTW Randy I found that picture of the Scirroco two pass rad.
Here it is.

Paul Lamar


Hi group,

Speedway motors has them on for $189.99.

Dale Davies


Link please.
C. Smith

I think I may have created a bit of confusion here.
The  Scirroco two pass is not the one I recommend
for fabricating a cross counter flow.

It is a Dodge Neon core with plastic end tanks you can
order from any rad shop. I removed the plastic end tanks.

A two pass rad with inlets and outlets on the same end
like the Scirroco are good for quick and simple mounting
on the bottom of the fuse. The main reason to use a two
pass rad is to simplify the plumbing :) Randy has a one
rotor so the Scirroco is large enough by itself.

For two rotor quick and simple use I recommend a larger
frontal area double pass rad the thinner the better.
This one is 28 inches high.

http://tinyurl.com/3xh7avn

Of course it is not mounted vertically... face on to the air stream.
It is mounted under the fuse near horizontal with a Kays & London
wedge shaped diffuser.

It can also be mounted horizontal or near horizontal
under the engine with a Kays & London wedge shaped
diffuser.

It can be mounted vertically on the cool side of the
engine as well with a Kays & London wedge shaped
diffuser. Here is my Sea Wind recommendation for Doug
using a stock cowl.

The theory here is; the larger the frontal area AND the thinner
the core the lower the aerodynamic drag for a given core volume.

Paul Lamar


Oh, that's OK. I just wanted to see it for reference. I already have a pair of
neon radiators I bought off of eBay for somethng like $30 each. Right now I see
one for $29. If you combine 2 for shipping you can save a bit there too.
I guess the only tricky part is the dividing partition on the in-out side. One
way would be to make 2 separate tanks, the other would be to weld in the
partition on a shared base, then split the channel and make a three way butt
weld along the top to close it all up.
C. Smith

They must be separate tanks on the in and out end. If they are welded together that defeats the cross counter flow system. In other words they are thermally
isolated from each other. I once sent a sketch to a welder to have
one made and it came back welded together. His attitude was; "what
does an engineer know? I am a welder!!!" :)

If you want to make it slick you could do something like this.

Paul Lamar