MC engine swap minutia

[C1J1Miller at aol.com]

Marc writes:

>> how about a giant expansion tank for greater overall coolant volume?

:I'm not sure what that would do?  If I have my physics :right that would only
:keep your car cooler untill the coolant volume heated :up to operating
:temp... at which point it can only be cooled at the max :cooling rate allowed
:by the rad...

The thermostat controls the engine temp, which would be the same.  The max cooling rate, remember, is the high-speed fan on mode, which isn't that often.  Big advantage to larger coolant volume is the storage capacity for heat; you could run at WOT that much longer before hitting hurricane mode.  Should absorb heat spikes better with larger coolant volume.  Better to add that volume within a radiator, though.  Several audi models add an auxiliary radiator for just this purpose.

Chris