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scottessex
10-22-2007, 03:31 AM
Installed new radiator on the dominator, The other rad was a VW rabit radiator, not the aluminum one, but the engine always ran cold, (582 model 90) I was lucky to see 130 degrees, at Wrens with the cooler weather it was running very cold, so i had a radiator from a 1979 honda goldwing, it is about 1/2 the size and about 3lbs lighter. Now I am seeing about 150+ with the cooler weather.
Racer
10-22-2007, 05:30 AM
Honda Goldwing radiator, What a great Idea, I never thought of that. Looks very good on your dom.
chuter
10-22-2007, 05:47 AM
Scott,

Have you posted about that prop setup before? How do you like it? Can you adjust both props with a single adjustment?
greg spicola
10-22-2007, 06:09 AM
Hey Scott you wouldn't have another one of those lying around the Essex
Sunk Works facility, I talked to Carl Schneider as Doug Riley was doing prop
air flow tests and he told me if there were any way to mount the radiator
horizonaley and allow cleaner air to reach the prop I would get much more thrust
and efficeny out of it but the vw radiator on mine is too big to mount that way.

Greg
gyromike
10-22-2007, 07:19 AM
Scott,

Are the hose outlets on the radiator the same size as the Rotax inlets?

I have 2 smaller radiators that I picked up, a Kawasaki EX250 and an EX500.
The radiator outlets are slightly smaller than the Rotax.

Can you measure the length, width, and depth of the finned area?

I always thought that the Rabbit radiator was too large, but I suppose it's inexpensive and easy to get.
scottessex
10-22-2007, 07:45 AM
Chutter, Yes the 4 blades adjust all at the same time, it is IVO's 4 blade model "X" prop.
Sorry Greg, That was the only one that I had it wouldn't mount horiz either,
Mike the rad is approx 12"x12" and about 2 1/2" thick, the inlet and outlet are 1", I had to cut the filler cap off and solder a copper cap on it, but it seems to work fine. trty Ebay, I think I paid less than $20.

The rabbit radiator is very light weight, at least the new aluminum ones are, readilly available, cheap and easy to mount, and will handle many different engines, The 618 needs the big rad, but the 582 doesn't.