This is a stock $200 single pass all aluminum Summit Howe racing rad modified
by Ed Klepeis to a two pass design. The core is 15 inches wide
and 24 inches long 2.25 inches thick. A bit overkill for an NA
engine if you do the ducting right. I will go turbo eventually
so I think I will need the extra core volume.

Ed did a beautiful job modifying this rad from a single pass to a two
pass and reworking the front tank. Ed is a real artist with a
tig welder. Not that two pass is any better or worse than a one pass
rad but a two pass simplifies and shortens the water plumbing.

The rad will be mounted horizontally under the engine with air coming
in on the top below the oil pan and going straight down and out the bottom of the cowl.
I can adjust the angle slightly down at the front if I need more cooling
during climb out. In my testing on the Dodge van this core flowed 40% of forward
velocity with a simple Kays & London wedge shaped diffuser duct.

I had Ed put the input and output as far over to the left as possible 
so the water pump plumping length will be minimized. The stock 
oil cooler will be mounted along side on the right. If I had it to
do over I would try to find a shorter core than 24 inches. 19 inches would be
much easier to squeeze into the stock KIS Cruiser cowl.

Paul Lamar
 
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