Peter---Retarding the timing tends to overheat the engine/coolant, so
you don't want to go this direction, if you are already concerned with
overheating. This "retarding of the timing", thru vacuum applied at the
distributor pot, also included a vacuum interrupt on the later model
TR6's. It was known that the timing needed to be advanced, along with
engine speedup, to get the coolant temperatures back down after
prolonged idling. When this system is working as designed, there was
very little penalty in performance, as the only time it was in operation
was at engine idle speed, when the throttle was closed.
The Water Wetter formula breaks down water droplets into smaller
'pieces' which is supposed to carry away more heat. In theory, it should
help.
Oil coolers cool the oil. Duh...It should take a little of the load from
the cooling system, but not much. The temperature transmitter is in the
coolant flow.
Most of us at one time or another had a performance cam and high
compression. Higher engine temperatures were usually the end result,
unless a larger cooling system was used. I remember having to 'pop the
hood' while sitting in traffic, turning on the heater fan, etc..Anything
to help stay away from pegging the temp needle. However, your
particular cam and CR should not call for any drastic measures. In the
safety of your driveway, would the coolant really peg the needle, or
just merely go over normal? Worth a test?
Dick
|