The Ford Barn - View Single Post - Cold weather driving with or without thermostat?

Richard in Anaheim CA · 11-24-2018, 05:23 PM

I always thought those tiny holes in the thermostat could pose a problem, so years ago I took my trusty Harbor Freight tapered step drill to the holes and have two .250" holes in my thermostats.

I measured the inside of the "barb" for a 5/8 heater hose and it measured .430.

The area of a circle is 3.14 X radius squared.
I ran into a problem squaring numbers less than 1 so am not sure how my [2].250 holes compare with a single .430 orifice. I guess I should have paid more attention to Mr. Redford in math class.

I do know that my cars do fine in all types of weather with my modified 160* thermostats.

11-24-2018, 05:23 PM	#40
Richard in Anaheim CA Senior Member Join Date: May 2010 Location: Anaheim California Posts: 551	Re: Cold weather driving with or without thermostat? I always thought those tiny holes in the thermostat could pose a problem, so years ago I took my trusty Harbor Freight tapered step drill to the holes and have two .250" holes in my thermostats. I measured the inside of the "barb" for a 5/8 heater hose and it measured .430. The area of a circle is 3.14 X radius squared. I ran into a problem squaring numbers less than 1 so am not sure how my [2].250 holes compare with a single .430 orifice. I guess I should have paid more attention to Mr. Redford in math class. I do know that my cars do fine in all types of weather with my modified 160* thermostats.