Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Efficiency increase with a warmer engine? (195F vs 165F)

Christ · 12-10-2009, 10:03 AM

If the electric water pump is ECU controlled, why would you need a t-stat at all?

I mean, the ECU could just shut off the pump and monitor temps until the pump needed to move the hot coolant.

12-10-2009, 10:03 AM	#10 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	If the electric water pump is ECU controlled, why would you need a t-stat at all? I mean, the ECU could just shut off the pump and monitor temps until the pump needed to move the hot coolant. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"