> > > " But 50/50 boils at 223F, > > open air, or under the cap? > > Oh right, 223F B.P. at atmospheric pressure. I can't seem to find a credible chart or formula for pressure vs. B.P. but two random pages stated 48 degrees increase in boiling point at 15psi. So coolant is NOT boiling in the head at 230F, so that is unlikely to be a problem. Still gotta find a chart or formula for this, but thanks Andrew!! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://list.amc-list.com/pipermail/amc-list-amc-list.com/attachments/20100718/913b6dc0/attachment.htm> _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com