I really don't want to argue about this but a thought crossed my mind and I
thought I would throw it out there. Suppose your cooling system were in good
enough shape to be able to limit the engine temps to 15 degrees hotter than when
the thermostat opens fully (sounds reasonable). Now lets say you compared
running a 160 degree stat to a 195 (stock) stat in that same engine/cooling
system. With the 160, your engine temp max becomes 175 and w/the 195 stat, the
engine temp max becomes 210. Couldn't you say that this limited the maximum
engine coolant temp?
I believe I thought of this because its what happened in my case. Prior to the
180 stat, I had engine temps that reached 210 degrees (100 degree ambient,
sitting in traffic). Now it never gets over about 195.
Comments?
Latr,
Shane
Bob Tom wrote:
> At 02:55 AM 8/2/01 -0700, you wrote:
> >Hey, my 3.9L has always seemed to run hot, I mean, the temp gauge says it
> >ok, and I've never had any problems with it, but it just seems really hot to
> >me. I mean, there's usually so much heat coming into the cab it feels like
> >I have the heater on low. Would a 180 or 160 t-stat fix that? And if so,
> >how does going with a lower t-stat affect other things, like gas mileage,
> >power, stuff like that? Thanks :) Dave
>
> A lower degree tstat determines what the MINIMUM coolant temperature
> can be when the engine is operating and fully warmed up. It does not
> determine the MAXIMUM coolant temp. under those same conditions.
> MAXIMUM coolant temp. is determined by other factors, mainly the condition/
> efficiency of your cooling system and the type of driving conditions. HTH.
>
> Bob Tom Burlington, Ont., Canada
> '97 Dakota Sport, 4x2, CC, Flame red, 5.2L, auto., 3.92SG
-- '96 IndyRam-HisIndy-MPI TB Pulleys RTcam MPComp HVoilpump DynaGearDoubleRoller WindageTray CompTAs '96 IndyRam-HerIndy-numbered(#142)"Track Truck" '74 Triple-Black Dodge Challenger Rallye 360 EFI R&D vehicle '93 Dakota CC 318 - soon to be mine 8)
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