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| From | Message |
| Michael GenI   12/31/2000 15:36:05 |
 Subject: 180 Degree ThermostatIP: Logged Message: Considering doing a swap from the 195 to the 180 on my 2001 Dak (well doing it this spring). My only concern is winter. I live in central Canada, and we regularly get periods (usually lasting a couple weeks at a time) were the daytime high in below -20C. Any comments? |
| Bob/ Unregistered 12/31/2000 16:51:40 | RE: 180 Degree Thermostat IP: Logged Message: Michael I ask on one of the old posts about changing the t-stat to a 180.As I told Bernd...my 2000 4.7L will not shift into OD un-till my t-stat is open all the way,and my heat gauge is all the way to the normal range.As cold that it is where you live,I wonder if it would shift to OD.If you look in your manual it will tell you when it is suppose to shift to OD.I am not going to change mine ever to a 180,but I do wander about the shifting thing if some one changs to a 180 t-stat. FOOD FOR THOUGHT! Bob/ |
| Bernd GenIII   1/01/2001 20:21:27 |  RE: 180 Degree ThermostatIP: Logged Message: The funtion of a Thermostat is to get the engine up to a certain temperature and then keep it there by opening and closing at the specified temperature. (Most T'Stats run at 5 degrees above they're advertised rating.) However, if you live in a very cold area (like what Bob was describing)...the radiator may not get warm enough due to the windchill factor. (Moving air is colder than stationary.) So...you can run the 180 in the cold weather but I would suggest that you either let the vehicle warm up slightly longer or get a radiator blanket to help keep it warm. If your weather is in the extreme cold, stick with the factory t'stat. Bernd D. Ratsch 1997 Dodge Dakota SLT Supercharged w/Nitrous |
| Bob Unregistered 1/01/2001 23:19:50 | RE: 180 Degree Thermostat IP: Logged Message: Michael- disregard my post to you.At the time I didn't know you had a V6 auto,the trans in the 4.7L is different than your's.Bernd would have the answer for you.I rest my case. Bob |
| Michael GenIII 1/02/2001 08:45:03 | RE: 180 Degree Thermostat IP: Logged Message: actually I have the V6 5-speed 2001 Silver Dakota CC 4x4 v6 |
| Bernd GenIII 1/02/2001 10:31:44 | RE: 180 Degree Thermostat IP: Logged Message: Michael...You can try it but again, I personally wouldn't change it to the 180 if the weather is that cold. Bernd D. Ratsch 1997 Dodge Dakota SLT Supercharged w/Nitrous |
| Mike Rule Unregistered 1/02/2001 15:42:45 | RE: 180 Degree Thermostat IP: Logged Message: Correct me if I am wrong, but "in the old days" (early 1990's) if the engine did not acheive a ~190 to 195 degree operating temp, it would never go into closed loop, and fuel mileage would drop 2 or 3 mpg minimum, sometimes more. I've been out of the dealership for 10 years, but this should be considered! Mike |
| Bernd GenIII 1/02/2001 16:15:45 | RE: 180 Degree Thermostat IP: Logged Message: In my old BAR-90 days, if 170 degrees wasn't reached, you got stuck in Open-Loop. (Systems varied at that time on temps though.) Closed-Loop operation is determined by MAP, TPS, IAT, and Coolant Temp now. The OBD-II systems are a lot smarter than the "old days" (I still remember them...god what a pain) and you can run a 180 without any degradation in mileage. Bernd D. Ratsch 1997 Dodge Dakota SLT Supercharged w/Nitrous |
| Mike Rule Dakota Enthusiast 1/03/2001 08:03:02 | RE: 180 Degree Thermostat IP: Logged Message: Thanks Berndt. Upon further pondering it seems that it did achieve closed loop at a lower temp, but fuel mileage was still affected until full operating temp was acheived even in closed loop. I'm really dusting out the cobwebs in the old grey matter here. Thanks for the update on the newer tech. Mike BTW, how did you make out with that regulator? |
| Bernd GenIII 1/03/2001 10:21:27 | RE: 180 Degree Thermostat IP: Logged Message: If you're referring to the MAP Adjuster, i'm just about finished with the final product. It now includes an adjustment for the IAT and MAP allowing you to control the fuel and timing slightly in the process. Bernd D. Ratsch 1997 Dodge Dakota SLT Supercharged w/Nitrous |
| Mike Rule Dakota Enthusiast 1/03/2001 11:12:52 | RE: 180 Degree Thermostat IP: Logged Message: Bernd, I was reffering to the Neon regultor we discussed. Sorry for the confusion. Although the other update is good too! :) Sorry I mispelled your name last time! Mike |
| Bernd GenIII 1/03/2001 11:25:33 | RE: 180 Degree Thermostat IP: Logged Message: Oh...yeah...now I remember. I checked with one other person as well (Marty - KRC) and he's almost done with his return system. Bernd D. Ratsch 1997 Dodge Dakota SLT Supercharged w/Nitrous |
| Mike Rule Dakota Enthusiast 1/03/2001 11:27:52 | RE: 180 Degree Thermostat IP: Logged Message: Let me know how it goes! |
| Oh BABY Dodge Dakota JOIN HERE 2/08/2005 01:48:44 |  RE: 180 Degree ThermostatIP: Logged Message: Oh, BABY! |
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