Thermostat

[gripit]

I like the new Site! Best wishes on its success!

Whats the difference between a Sierra, Merc, & Hardin Marine High Performance Thermostat (140F) ? Also would drilling three holes it it make it High Performance.

Thanks

[Blue Thunder]

They are probably all three made by the same manufacturer, just guess though. The holes you drill just lets air pockets out from under the stat so it works properly. I don't know what defines a hp tsat, never heard of that. For hp applications I believe they switch to just restrictors instead of tsats.

BT

[jet]

yep restrictors on the water and tstats on the oil

[gripit]

Thanks!