First Generation Firebird-L Mailing List
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From: "Mlueker"
"Also, a Tstat does not perceptibly slow down coolant flowing in the engine,
thus pulling out a Tstat will not impact heat transfer."
Really, that's the first time I've heard that. Do you happen to know the flow
characteristics of the T-stat when fully open? If I recall it's less than the
volume of the radiator hose. Everything I've read over the years suggests
there's more negatives than advantages when running sans T-stat.
I realize these are considered muscle cars, but those that are concerned about
combustion efficiency and emissions should retain the t-stat. The higher the
head temp the cleaner engines run. As mentioned the Powertrain Engineers use a
t-stat to get the engine up to temp ASAP.
Also, just a reminder, these engines are sensitive to the coolant to water
ratio - 50/50 seems to work best.
PeteJD
E/M Engineer
Lic. A&P Mechanic
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