Normal Operating Temps

[fiyota]

I tried searching for a thread talking about this but wasn't able to come up with something usefull. I installed an aftermarket temp gauge today and I just want to make sure everything is in check as far as temps go. Please let me know if any of this is not normal.

External temps - Mild, around 20-25C out at night.

Cruising (any speed) - 180-190F
Idle - starts to climb up to about 195F tops then goes to 180-190 @ cruise
After turning off - Climbs up to about 210F after shutting off and sitting for a few minutes.. highest i've seen it go is about 212F

Now are those temperatures normal? After I shut it off it may climb up to about 212F but as soon as I turn it back on it drops down to about 180-185 almost imediately. And a final note, the probe is installed on the outside housing of the thermostat.. so since it flows through the upper rad hose to the rad it would be after the thermostat on the rad side (make sense?)

Thanks guys!

 

[Poodles]

that's normal (it's right around the temp your t-stat opens which is good)

 

[fiyota]

Alright, so climbing up to about 210 after shutting off is normal then?

I haven't put my undertray back on since I did my swap (was trackign down a coolant leak, and didn't feel like taking the tray on and off untill it was fixed) and I have to put all the heat sheilds back on still so that should help lower my crusing temps a little bit aswell.

 

[Fletch124]

The reason the temp rises after you shut off the car is because the water pump isnt circulating water through the system. So your coolant just soaks in the block and obviously the temp rises.

 

[fiyota]

I just wanted to make sure that it wasn't get too hot, never had an acurate temp gauge before so I wanted to make sure.. and it is so thanks guys!

 

[bwest]

pending what model (turbo, AT/MT) and year, the aux fan swtiches kick on at 212F and 234F (http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=AC&P=33)

so yes, you are in the normal range for a stock cooling system (mine acted the same way stock)

 

[starscream5000]

Completely normal. Let us know how much cooler the car runs on a comparable weather day once you have your undertray installed .

 

[fiyota]

Will do

Ya I have that aux fan hooked up to a switch inside the car so when I shut the car off I can have that fan on to circulate the air throughout the engine bay a little bit.

 

[Force Fed]

Most engines usually have to reach around 250+F before any damage will occur.

 

[maitai69691]

SRY for jump in on your thread had a quick ? on the stock temp guage on 88t where should the needle be mine sits at just below half

 

[Poodles]

Alright, so climbing up to about 210 after shutting off is normal then?

I haven't put my undertray back on since I did my swap (was trackign down a coolant leak, and didn't feel like taking the tray on and off untill it was fixed) and I have to put all the heat sheilds back on still so that should help lower my crusing temps a little bit aswell.

what heat sheilds? the ones on the manifold are CRITICAL to the protection of the sensors and the wiring harness on that side of the engine...