Let's solve my 20V conversion problems

[jondee86]

Using a higher pressure radiator cap means that the cooling system
pressure will rise to a higher than standard value, before the cap opens
and relieves the pressure. This will place a higher pressure on any join
or sealing surface in the cooling system. If the joint is marginal. then you
can expect to find weeping from under hose clips, and from screwed or
bolted joints. Usually, just re-tightening the clips or bolts is enough to take
care of the problem.

Slightly off-topic: the factory designs an engine to run at a certain
temperature. The OEM ECU is configured to apply safety factors once the
design temperature is exceeded. I have never seen any evidence to
suggest that it is a good idea to raise the cooling system maximum
pressure (and hence engine temperature) on a road/sometimes track car.

Cheers... jondee86