We use 20 psi cap (3 deg/lb.). Which gives pure water a 272 deg. boiling
point. Coolant (50/50 solution) boils at 226 deg at atmosphere. Plus 60
deg makes it 286. We also have a small water line in the center of the
head to help purge any steam pockets.
The down side to our situation on gasoline is that it would be better to
leave the line at 180 deg, but we opt for a lower temp to help keep the
far end temp lower.
Tom, Redding CA - #216 D/CC
Sparky wrote:
> We Data logged and never saw over 240---we cooked the Brodix heads---ie they
>lost their hardness---we were told by them and Stewart, The water pump people
>we had been having steem pockets-----to solve the problem---high pressure
>radiator caps and a mechanical pump.
>
> Tom --how much cap pressure were you using to "not lose water at 260 deg???
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