ZR-1 Net Registry Forums - View Single Post - Cooler Thermostats, Thermostat Modifications and Engine RPM

Dynomite · 12-08-2018

Hi Craig.....You can hang on to the "holy" thermostat

I have found my coolant stays in the 190s and maybe up around 208 like yours on the warmer days as long as I keep the rpms above 2,000 while driving. Keeping the engine rpm above 2,000 at idle actually will raise the coolant temperature unless you have installed greater flow rate fans. It is amazing to watch that temperature gauge go up and down at 65 mph as I shift back and forth between 5th and 6th.

Have a great Christmas Craig

12-08-2018	#6
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,788	Re: Cooler Thermostats, Thermostat Modifications and Engine RPM Hi Craig.....You can hang on to the "holy" thermostat I have found my coolant stays in the 190s and maybe up around 208 like yours on the warmer days as long as I keep the rpms above 2,000 while driving. Keeping the engine rpm above 2,000 at idle actually will raise the coolant temperature unless you have installed greater flow rate fans. It is amazing to watch that temperature gauge go up and down at 65 mph as I shift back and forth between 5th and 6th. Have a great Christmas Craig __________________ Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 12-10-2018 at 02:13 PM.