1G Which Thermostat?

[cookmeup272]

So I have run into a lot of problems lately that i dont want to think about anymore . Another part i want/think i need to replace is my T-Stat. I searched a little and i really only found 3 sites that offer one for 91. This one from dsmparts, https://www.dsmparts.com/customer/product.php?productid=183&cat=12&page=&js=n, this one from SBR, Slowboy Racing, Inc. :: Mitsubishi :: DSM :: OEM Parts :: Cooling :: OEM Factory Replacement Thermostat Kit - 1G 90-94 Models, and this one from STM but its weird because it is a 160*(isnt that really low?), STM - DSM COOLING | RADIATOR | FANS | HOSES | THERMOSTAT. What would you choose or is there somewhere else that offers one that you would recommend?

 

[My1GLaser]

The Stant Superstat at Adv Auto has worked well for me. I got the 160*, but I live in the south. Remember the number is when the Tstat starts to open. In reality, you end up running about 10* hotter than the Tstat rating on a stockish cooling system.

 

[cookmeup272]

Ok yea I do remember reading about the Stant. I think I will call my local part suppliers and see what they have. There is also a place called rock auto that i have ordered some parts from. What is the difference between a regular t stat and a premium one?

 

[cookmeup272]

Anyone know the difference between the premium and regulars?

 

[snakeyes711]

Anyone know the difference between the premium and regulars?

Regular...well is regular. premium is when its got a override so it doesn't ever stick shut. But my last Stant 192 PREMIUM wasn't any better it had my car running at 209* or more. I ended up with the 180*, and the car runs well at 192*-189* now.

its supposed to have a bypass in case it gets stuck. thats the only difference. I found it does work. but if the thermastat is bad it kinda masks he problem of it being stuck.

Anyone know the difference between the premium and regulars?

REgilar...well is regular premium is when its got a override so it doesn't ever stick shut. But my last Stant 192 PREMIUM wasn't any better it had my car running at 209* or more. I ended up with the 180*, and the car runs well at 192* now.

its supposed to have a bypass in case it gets stuck. thats the only difference. I found it does work. but if the thermostat is bad it kinda masks he problem of it being stuck.

 

[cookmeup272]

So then getting the premium IS worth the extra two or 3 dollars then? . And the 180* is the way to go for my 1g?

 

[snakeyes711]

Yeah go for it.

 

[OwninFools]

Your local Canadian Tire / Part Source, or even I think Walmart sells T-stats that will work for a DSM.

I run 2 different T-stats throughout the year, depending on the time of the year. Spring, summer, and fall I run a 160F t-stat, a colder engine in the summer is definitely the way to go. In the winter I run a 195F, for more heat and easily running during the cold months.

I will reply to this thread with some part #s when I go on Friday to grab my t-stat for the summer.

Also, always remember to get thermostat housing gasket maker, and an actual thermostat housing gasket. Apply a nice layer on both sides of the gasket, and tq. to spec.

 

[snakeyes711]

160* huh? Will that temp set the ecu into closed loop? I'd like to see that in action myself I think.

 

[cookmeup272]

Well i needed a tstat now so i went to my local autoparts international and picked up a premium stant 195* thermostat

 

[My1GLaser]

160* huh? Will that temp set the ecu into closed loop? I'd like to see that in action myself I think.

I don't believe the temp decides if it stays in closed loop or not. It will decide if the ST fuel trim values get moved into LT fuel trims. I think a 1g is set at 182* but there are other criteria that needs met too.

Start-up idle enrichment is based on coolant temp, but that is controlled by the FIAV in the TB and I don't what temp that valve closes at.

 

[1992awdlaser]

160* huh? Will that temp set the ecu into closed loop? I'd like to see that in action myself I think.

fueltrimupdatepoints [ECMTuning - wiki]

 

[snakeyes711]

Hey Pat, good info there Thanks. Thats pretty clear.