[John Rogers]

Can you post a pict of the from mounted radiator. I have seen a couple of conversions in 914 and also a couple of Mazda conversions to big ass Chevy V8s and all had cooling troubles until they got some well made ducting. The best place to get air is from the middle of the front bumper area and exhaust it either out the bottom of the front trunk or out the sides behind the front wheels. There has to be ducting though so the air will not just go in and and wander around and build up air pressure in the front trunk space.

As for cooling line size, search here and on the Pelican site for other conversions to see what people use. I know with front oil coolers that larger sized lines are better as the have less resistance to flow so the internal engine oil pump can move the oil easier. Oil pumps are a positive displacement type but the water pump is usually a centrifigal pump and they also like less resistance (less head to pump against) but then again I have never owned a water cooled Porsche!!??