The section drawing shows an easy way to add some power - continue the case water passage around up behind the RV , and have the majority of cold water enter the cylinder each side
of the boost port.
Then just a pair of small 3.5mm drillings up under each side of the Ex duct to ensure flow occurs right around this and isnt into a dead end near the Ex flange.
Having all the cold water heated first by the Ex duct is looses exactly 1 Hp in 50.
Also the water cavity should extend right up to the back face of the Ex spigot to cool this - no gasket.
I am about to test adding a water jacket system , as proof of concept , around the transfer ducts , right from the case split line upward.
So the whole transfer duct is cooled , not just the last part of the bend into the port.
Ive got a thing thats unique and new.To prove it I'll have the last laugh on you.Cause instead of one head I got two.And you know two heads are better than one.
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