Quote:
Originally Posted by digieditny
Do any of you have this Diesel Giant modification? I've been reading that the new 80c thermostats actually don't open up until 90c and that would keep the car's temp around 95c and 100c. Is this true? |
The bypass thermostat does not "open" at some precise temperature. It actuates progressively over a temperature range.
Quote:
Originally Posted by digieditny
If so, would drilling these holes help keep the temps down around 80c to 85c?
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The 617 turbo engine has a thermostat bypass passage already, built into the thermostat housing.
If you have had overheating problems, there is a good chance you have a pressure leak. A pressure test of the cooling system might be more helpful than drilling holes in the thermostat.