now that i got my swap running im having some cooling issues. i set up my cooling system a little different then i have ever seen done, really just as a test to see how it would do. im running the entire 22re cooling system, the fan,clutch and radiator are all from the 22re.

i installed an autometer temp gauge on the outlet on top of the motor.

now on to the issue, how does the thermostat in the lower hose work? with the stock toyota thermostat that came in this engine it would sit and idle around 170 all day, but as soon as i would start to drive it would get to 220 (where i stoppped) within a minute. the top hose was very hot, but the bottom had no temperature at all. i replaced the thermostat and tried it again with identical results.

im now running a thermostat with 8 holes drilled in it, works great. on the street it runs 165-175, and on the freeway i never got it over 185.

whats with this weird thermostat on the bottom stuff?

 

Did you burp it?

 

I presume you swaped in a 3.4?

Why would you run a cooling system for a smaller engine with less power?

 

yes i swapped in a 3.4. like i said, im running this cooling system just to see how it does.

i do not think air is the issue because it does not overheat now. i let it run untill it got hot with the radiator cap off, even jacked the front end of the truck up about 2 feet to get the radiator as high as possible.

i just dont get how the thermostat on the bottom is suppose to work, it sits there in cold water.

 

soo anyone care to explain how the thermostat on the bottom is suppose to work?

 

had its first desert trip this past weekend. preran a 50 mile race course at about 75% race speed. hottest it got was 210 at full throttle up a sandy up hill section. still running a thermostat with about 12 holes drilled in it. not to bad for having a 22re radiator and fan.

also hit 92mph across the drylake.

no one has an explanation of the thermostat on the bottom hose?

 

I did my first summer run this past weekend too. It got a little warm for my taste for a bit. But I was going slow in steep sandy conditions, and it slowly crept up to about 215 at the hottest point. I am running the 3.0 radiator with an e-fan. And I have an oem 180 degree thermostat. Usually it runs around 195..

What is the hottest that these things get before damage occurs? 240? Also my temp gauge never moved a mm. Anybody know how hot it needs to get before that gauge will start moving?

Sorry for hi-jacking a bit. I figure this is still sorta on topic

 

i dont mind at all. i planned to let off if it got to 220, but dont not sure when damage would occur. are you running antifreeze?

mine is going out again the 13-15, we will see how it does this time.

 

ya I have 50/50 and some water wetter..

 

im running all water with water wetter, no antifreeze. if i ran 50/50 id most likely have some serious issues.

 

Well I went out again this weekend. This time it got to almost 220. I stopped once I got to the top of the hill, and opened the hood up to try and let the heat out faster. After about 5 minutes we left. When I started the motor back up, the temp gauge was actually just above the little thermometer icon on the gauge. After a few seconds it went back down though. I think my crappy single row radiator that I got from summit is not going to cut it for this motor. I am going to put my 3 row out of my truck in and see if it helps. And run just water and water wetter like you. Maybe some coolant too, because I don't think water wetter raises the boiling point of water does it? (Just in case)...

 

put over 200 miles on mine this weekend. outside temp where around 100 and even at 70 on the freeway on a 4k ft pass it never got over 210.

on another note, if you guys heard about the horrible accident that killed 8 at a truck race, that is where i was. i was only about 50feet from the accident. dont believe what you read/hear from the media. they are twisting the info and getting false info.

 

what do you mean by twisting the info? Please elaborate..

 

I heard about it

 

I have read and heard from more then 1 source that the truck was speeding, not true. there are not speed limits in that part of the course during a race. also, they are comparing it to illegal street racing, also false. this is a 100% legal race. there are also trying to put blame on one thing, it was a huge combo of things that led to this accident. the driver (very well known in my group or friends) is by no means at fault at all. if there had to be 1 "group" at fault it would be the spectators, they (including me, but in a safer spot) where the only ones breaking written rules (being closer then 100ft from the course).

 

Sorry you don't have your answer to drilling 12 holes in your lower thermostat, but to be honest I've never heard of that being done before. Do you think Adding an electric fan would help (if climbing at low speeds but high rpms?)

 

i dont thing that would help, it might stay a little cooler but the hottest i have gotten it since with the holes in the thermostat is 210. that doesnt seem to hot to me.

 

hmm I agree about the at fault. I would say nobody would be at fault. It was an organized race. The driver was racing. because he was SUPPOSE to! Wrecks happen. Yes the spectators were to close, but that is not the driver's fault at all! Stupid media. If you know the driver or any of the families of the deceased, please extend my condolences. I hope he recovers okay. That would be a tough thing to live with

And back on topic, I swapped out my single row cheapo radiator and put my truck's 3 row in. I also used Royal Purple ICE as well. And only about 30% coolant/antifreeze. It seems to stay a lot more even around 195 no matter my driving conditions. Though with the a/c on and at idle like a stop light it did get up to 201. Well within my comfort zone. I also read on the TTORA site about getting a VW e-fan, and then cutting up the shroud that it is a part of. You basically fit the shroud inside the stock fan shroud. I think I will do this, and see if that helps even better since the fan would be pulling air through the entire radiator...

 

where are you getting that temp reading from?

 

the computer's obd2 port. It is permanently connected to my mobile pc.