[Gigolo Jason]

Originally Posted by tdeal28

It seems that theres a miss conception about boiling point of water/antifreeze. Water boils at 212 deg F.

Two things increase the boiling point of water:
1. By adding ethylene glycol (Antifreeze) to the water
2. Pressurizing the water/coolant within a sealed system

This is correct. The boiling point of a stock system on a 15psi cap with a 50/50 mix is somewhere around 263F.

Cutting the cap on a stock system will only result in an overheated bike.

Originally Posted by tdeal28

By running a 0psi radiator cap you are actually keeping the boiling point of water or water/antifreeze mix at the normal boiling point. By pressuizing the sytem you are raising the boiling point. Thats way ALL vehicles and motorcycles come with pressure caps.

If you are directing this comment to me then you have misread my post. I do not run a water based coolant system in my 954. I run a waterless oil based propylene glycol coolant which boils at 375F without pressurization. I now have a little over 2K miles on the clock while running Evans at 0psi.

[Firehawk]

has anyone tried a supplemental fan or changing the fan temp sensor to activate the fan at a lower temp?

[steingar]

There seems to be a misconception about how engines run. They breath air. In many parts of the world air has water in it. We call that humidity. That water can condense and corrode engine parts from the inside. Thus 220 degrees is a damn good temperature at which to run your engine.

Airplanes have aluminum engines. I actually have to block off the oil induction system on my Cherokee in cold weather to keep the oil temperature up around 220 degrees.

[Firehawk]

after two blown head gaskets, i'd tend to differ in my opinion.