DeTomaso Mailing List: July 99, Message #367

In a message dated 7/9/99 10:51:50 AM, pvperry@ix.netcom.com writes:
snip.....
<< Since cooling seems to be an on-going issue with these cars and they tend 
to run hot anyway (not necessarily boiling over but in the 220-30 range) - 
would running them without a thermostat altogether help lower the operating 
temperatures?  >>

Due to the unique way Ford engineers used in designing the 351C, running 
without a thermostat (except in one case) WILL CAUSE OVERHEATING. There's 
an-in-depth analysis of this in your Aug newsletter (in the mail), but 
briefly, the warm-up passage built into the block's nose will bypass the 
radiator with about 25% of the water going thru your block. And we haven't 
got that much reserve cooling capacity in the Pantera. Maybe in a Mustang, 
but not the P-car! The one case this is not true, is if you have the warm-up 
passage blocked off OR if you run a Weiand aluminum racing waterpump that has 
no bypass port machined in it. Cheers- J DeRyke