lower temp thermostat

dieselbeef

dieselbeef

dick doggin
Joined
Jul 23, 2007
Messages
9,999
the 190 is done..never closes...

whattya think bout a 175 0180 or whtever is avail lower temp

im in fl...dont need super hot htr....

make more power cooler temp?

how bout run cooler when towing super hvy crap

whats avail?? CUMMINS GUYS SAYS CANT USE NOTHIN BUT A 190..i say bs

i need this today cuz i gotta deliver hay and tow the camper and want the truck warm enuff to not blow the hdgskt at 50 lbs of boost

thanks

gary
 
I'd say lower temps on a combustion idnition engine could ( MAYBE ) lesson the Efficiency of the motor.... But in FL it may not be an issue... Esspecially since its only 10 degrees...

Not sure this mod would really be beneficial for you..

For Towing heavy, It may be beneficial....


BTW, I used a 180 one time..... But with a decompressed motor, I went back to 190 for efficiency..
 
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i thought it might help to keep it cooler being it would open earlier...start cooling from 180 instead of 190 to give me a bit of a 10 degree start on the running over 200 towing...wasnt thinkin from a perf standoint really
 
dieselbeef said:
i thought it might help to keep it cooler being it would open earlier...start cooling from 180 instead of 190 to give me a bit of a 10 degree start on the running over 200 towing...wasnt thinkin from a perf standoint really
Click to expand...

I bet it would be fine then for towing...
 
too bad the doooosh at the dealer wont sell me what i want cuz the book says it has to have a 190 for emission crap..if i could wait id tell him to pound sand but i need the truck right now..at least they got one on the shelf.
 
I've got a 180* from cummins in mine. They won't sell it to you if you give them your engine serial number. You have to give them the part number which I used to have but when I exchanged my phone all my notes and part numbers never transferred over so I lost it. I didn't notice any difference going from a 190 to a 180 though.
 
well believe it or not i got a 180 from them. i know it calls for 190 what i got was a 180..so sweet for me.

maybe wont matter but its hot here and i just think it might help a little. if it dont no loss right!

didnt come in a box or nothin..just a themo with the gasket ring att already...

oh well...least i got it !

thanks guys
 
a colder cylinder will produce more carbon because of incomplete combustion. the short term affects will not be noticed but in the long run you might carbon up your injectors.

marine B's use a 160 thermostat but there working under 80% load 75% of the time. but they have the ultimate cooling package.. the ocean.
 
but the book also says the minimum operating temp recommended is 158 degrees.. (i double checked) so go to town boys..
 
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its not like the truck aint gonna get over 180..i aint in alaska where the truck will never get hot..itll open at 180 but im sure once it gets goin down the road w/10k-20k load on it it will makin plenty of heat...rarely does the temp gauage run at the thermo opening temp..truck is usually working too hard for that..even if it were too hang at 180 when im running empty ive got plenty of other oppurtunitys for it to get plenty hot

hell my egts get up to 1400 and thats when i see it geting over 200

i aint skeered

gary
 
BgBlDodge said:
I've got a 180* from cummins in mine. They won't sell it to you if you give them your engine serial number. You have to give them the part number which I used to have but when I exchanged my phone all my notes and part numbers never transferred over so I lost it. I didn't notice any difference going from a 190 to a 180 though.
Click to expand...


im figgering the same
 
On my 99', I picked up a solid 1.5 miles per gallon in fuel economy going from a broken thermostat that was halfway ripped apart and never let the truck get over 140* to a new 190* thermostat.

Going from 180 to 190 might not make a huge difference but going from 140 to 190 made a big difference on my truck.
 
Another interesting fact on the subject of thermostats and operating temperatures...
Anyone else notice how these days 100K miles is nothing on a vehicle, yet a few years ago, the engines were worn out and it was time to trade them off? Lets say the change also coincided with the advent of fuel injection, which also changed the thermostats to 195* from 160-180*. Engine blocks are most commonly cast iron, which happens to react a lot with temperature change. I forget exactly how much %, but it turns out cast iron cylinders are a lot "slicker" at 195* than at 160*, so engines wear better at higher temps.
 
NAPA carries the 180 t stat, it was used in pre 2000, or 2001 I think. They went to the 190 for emission crap is the way I understand it,
 
My $.02 worth (and don't ask for change!). The best way for a cooling system to cool is for the thermostat to be open and the temp be controlled by the cooling fan. The thermostat is best used for warm up, and the fan for operating temp. Winter fronts are a big helps with this in the winter.

In most engines the thermostat is on the exit of the cooling system. When the water gets to hot, the thermostat opens and allows water to circulate all the way through the engine before the thermostat sees it's to cold and closes. This has a tendency to "shock" cool the front cylinders.

Tyler is right also. The exhaust ports are in effect water cooled. Having the thermostat open helps the flow through the head, and helps eliminate hot spots at the exhaust ports/valve seats. When the water pump is recirculating water in the block, and not out through the thermostat, hot spots can develop.

I have a 180 thermostat in my 05, and a Opie bypass system. I like lots of flow through the head. In my 02, I have a 190 thermostat. Patty likes more heat from the heater. :lolly:

Paul
 
180 in mine....and opie bypass...helps big time getting a head start of cooling 900 hp runs.
 
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