18 degrees - Rock on!

 

This is why we have 4x4's

 

cdubya, listen to Hanson and 94rt10Ohio. I had a (what I thought was a stock 190 degree thermo, but it turned out to be a) 203 or something odd like that. Anyhow, swapped it for a 180 Jet Thermo and have seen no POSITIVE gains (neither HP nor MPG)...but I have notuner. Which makes me wonder about what HuntinHanson said...about the fact that he saw no gains without one either. So does that mean that it's worthless to swap it, if you do not have a tuner or just worthless to change it out PERIOD? I mean the only difference has been the temp gauge reading. Instead of reading about 50%, it'srunning a hair above 25%.Then, 94rt10Ohio stated that low temp is better for an engine. Bottom line, you've got some good advice. It's up to you what you want to do with it.

 

But wait a minute, Brother B, didn't you order a Diablo Predator like months ago?

 

I notice my truck is alot quicker when the engine is cold but when it was stock it seemed to be quicker when it was warmed up all the way. So it makes sense to get a 180 stat when u have mods especially a Superchips.

 

All I can say is it is one of the easiest and cheapest mods to do. So if you are bone stock and want to test the mod waters so to speak it is a great place to start.

 

eh... I'll throw one on when its a little warmer.... i am not a cold weather person... only when it comes to killen stuff

 

I bailed. It was taking FOREVER. Besides, after that last thread about the new Diablo tuners blowing up engines...it was time to get out. I ordered a Superchips Flashpaq instead. It should be here any day now.

 

There is not much difference from 180-200 or more
but below 180 degrees of coolant temperature
the metal bore walls of an engine will wear away much faster.

Why?

Because acids are naturally made in the burning of fuel in the cylinder
and below boiling point (212)
the acids will condense as liquids on the metal walls
and more quickly corrode the metal.

The same thing happens in large power plant chimneys.

If you install a 'super efficient' natural gas furnace in your house
they will install a plastic exhaust pipe for the 'warm' exhaust gas
which seems crazy
unless you know that a metal exhaust pipe would corrode away fast
due to the carbonic and nitric acids in the wet fog of the exhaust.

Hot bore walls in an engine
warm the oil the piston rings are rubbing against
and the hotter lubricating oil will give less friction
than if the oil were colder and more sluggish.
This is why hotter thermostats are being put in engines at the factory
for the slight MPG gain.

A hotter thermostat actually makes NOx pollution slightly worse,
as does anything that makes the cylinder hotter,
so higher temperature thermostats are not for pollution control
as is commonly said by WAG'ers.

If your intake manifold is made of a material that insulates the incoming air from engine heat,
there is not much horsepower gain from a colder thermostat.
Old engine designs did not keep the intake air isolated.
Modern engine designs do a better job.

 

Did someone say something?..... [sm=confused06.gif]