203* Thermostat, this has me puzzled.
#18
12-15-2010, 10:16 PM
#19
12-16-2010, 12:49 AM
Elder User
Join Date: Sep 2003
Location: New Baden IL
Posts: 582
Likes: 0
Received 0 Likes
on
0 Posts
I wish I was as confident as you are Clux.....but after two years, I've decided to go back. I think the final straw was the "hot" smell I started to notice coming from the front drivers side of the hood after a long highway speed drive.
#20
12-16-2010, 12:54 AM
Elder User
Join Date: Sep 2003
Location: New Baden IL
Posts: 582
Likes: 0
Received 0 Likes
on
0 Posts
The thermostat regulates your engine's minimum operating temperature. The water pump and radiator regulate the maximum temp. Once the Tstat opens, they're all the same.
Its more or less accepted on faith that raising oil temps a few degrees is harmful to the oil. As you've seen in this very thread, the Blackstone reports don't validate this belief.
International wants a 203 Tstat in the T444e, Ford lowered the combustion chamber temps a few degrees (before the Tstat opens) to cut down on NOx emissions. That's all I need to know.
I'd say install it and don't give it another thought. In fact, that's what I did.
Its more or less accepted on faith that raising oil temps a few degrees is harmful to the oil. As you've seen in this very thread, the Blackstone reports don't validate this belief.
International wants a 203 Tstat in the T444e, Ford lowered the combustion chamber temps a few degrees (before the Tstat opens) to cut down on NOx emissions. That's all I need to know.
I'd say install it and don't give it another thought. In fact, that's what I did.
#21
12-16-2010, 12:55 AM
Elder User
Join Date: Sep 2003
Location: New Baden IL
Posts: 582
Likes: 0
Received 0 Likes
on
0 Posts
#22
12-16-2010, 05:58 AM
well i did further research and came upon a thread on here that explained alot. I'm going to stick with OEM in this case. Thanks for the info!
Heres the link if anyone else wants to take a look,
203* thermostat install or not?
Heres the link if anyone else wants to take a look,
203* thermostat install or not?
#23
12-16-2010, 07:32 AM
Posting Guru
Join Date: Feb 2010
Location: Opelika, AL
Posts: 1,411
Likes: 0
Received 0 Likes
on
0 Posts
higher coolant temps cant Raise EGTs. I just cant see it, unless i am missing something. I can see Higher Oil temps, because i saw them during my live tuning, and i still need to change out my thermostat. Even with higher coolant temps, which leads to higher oil temps, im just not seeing higher EGTs.
You may be right but... if higher water temps equal higher oil temps, and the pcm use oil temp to calcualte the fuel curves and timing then it could effect EGT's (be it higher or lower i dont know).
I havent heard or read anyone explain if the 203* will in fact effect EGT's and if so in what direction?
Just looking at it from the surface (because i dont have any in depth Knowledge about this) an increase in oil temp would increase the temp of everything else in the system. or maybe the increase in oil temp causes more efficient combustion which will lower the EGT's. with the timing and fuel maps changing constantly i recon it's hard to say.
just thinking out loud not trying to argue a point....wheres Eugene when you need him
#25
12-16-2010, 11:06 AM
#26
12-16-2010, 12:34 PM
You may be right but... if higher water temps equal higher oil temps, and the pcm use oil temp to calcualte the fuel curves and timing then it could effect EGT's (be it higher or lower i dont know).
I havent heard or read anyone explain if the 203* will in fact effect EGT's and if so in what direction?
Just looking at it from the surface (because i dont have any in depth Knowledge about this) an increase in oil temp would increase the temp of everything else in the system. or maybe the increase in oil temp causes more efficient combustion which will lower the EGT's. with the timing and fuel maps changing constantly i recon it's hard to say.
just thinking out loud not trying to argue a point....wheres Eugene when you need him
I havent heard or read anyone explain if the 203* will in fact effect EGT's and if so in what direction?
Just looking at it from the surface (because i dont have any in depth Knowledge about this) an increase in oil temp would increase the temp of everything else in the system. or maybe the increase in oil temp causes more efficient combustion which will lower the EGT's. with the timing and fuel maps changing constantly i recon it's hard to say.
just thinking out loud not trying to argue a point....wheres Eugene when you need him
I have a hard time believing it would change EGT's... I mean, the EGT's are running several times warmer than your coolant and EOT's anyways. I highly doubt it, but I need a new thermostat myself and I'm trying to choose between an OEM and a 203*. I'm kinda leaning towards an OEM...
This is where i have been racking my brain. I dont see how a fluid that is cooler than the EGTs would have that much effect on the EGTs. If it does, it so minimal that u might not notice. I am currently running the 203* in my truck and since Live Tuning and seeing how high my oil temps got climbing the passes around ehre, im going to go back to the OEM 192/195. I will also monitor my EGTs, because i know where mine run right now. if i see a difference, it probably isnt going to be much more than a 25* difference
and Stewart, i dont think i want to go down that low to a 180, i really like a warm cab in my truck up here in the NW, lol
#27
12-16-2010, 01:50 PM
Thread
Thread Starter
Forum
Replies
Last Post
DanielT28
1994.5 - 1997 7.3L Power Stroke Diesel
13
12-13-2012 06:21 PM
