Hi
I remember quite a few years ago seeing that some guys in the US were putting watercooled heads on their type 1 motors. Does anyone know if this actually worked?
Or would the high heat of an aircooled motor matched to watercooled heads be metallurgically to much for it and break up?
Pro's cons?
Just wondering is all, and thought someone may have some insight.

Cheers

I have just read something about then in an old VW Trends, I think some of the drag racers in the US were using them for a while before they were made illegal for racing. Cant tell you anything more than that though.

I've wondered about this - making a fuel injected oxyboxer from a wbxer from my Caravelle and using aircooled barells and watercooled heads.
Am I in la-la-land?

they were either street ellimenator or autocraft 910 that had their heat sinks welded up very successful and were banned.

This type of job has been done a lot ibn the past in racing gokart air cooled engines.

basically the machined away mont of the cooling fins and simply boxed up the once finned ares with ally sheet and piped water in.

The same has been done to the barrels but this mod seems to be less desireable than the heads.

If you can be bother with all tha hassle, you wont regret it.

The issue is controlling the flow of water around different areas of the the heads and barrels to prevent and normalise hot and cool spots which lead to weird expansion of metals with possible seizures and cracking.
Consider a straight six engine with the water pump at the front so feeding cool water straight around #1 cylinder and head and by the time the water makes its way along to #6 a fair amount of heat has bee taken up by the water.

You see the manufacturers of cars altering the size and shape of the water holes in head gaskets, sometimes even blocking completely some galleries, to influence the flow of water around different parts of engines to deal with this.
It tends to be an evolutionary thing and gaskets of different ages will have different water holes.
VW deal in a similar way by way of those clip on air deflectors between the barrels located in between the pushrod tubes.

Subjective dyno testing with, and without those deflectors resulted in a significant power loss as engine temps rose on our F-Vee engines.

Engine develoipment is fun isnt it!!!:blah

L8tr
E

Interesting stuff Tass.
What about running the watercooled type heads as aircooled, or alternatively, using type4 (efi) heads on an oxyboxer with the waterboxer efi system?

I think Pauter in the states are developing a water cooled head $$$$.

Is it possible to adapt the waterboxer heads onto the aircooled barrels?

Watercooled heads as air cooled? I dun think so. They dont work like that.
as far as adapting waterboxer heads to air cooled barrels, i dont know as I have not actually seen watercooled stuff.

l8tr
E