Z1 170 deg thermostat testing is done. I am seeing a reduction in temp and coolant pressure. Coolant temps use to run 195 deg. They now are running 185 deg. My max coolant pressure before was 25psi at the top of a run. They are now at 22psi. They decreased 3psi. The data looks good. The coolant pressure has also become more stable when the thermostat is closed. It is worth it to go to this thermostat on a boosted application.
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