Operating coolant temps
Thread Starter
Melting Slicks
Joined: Sep 2002
Posts: 2,329
Likes: 0
Operating coolant temps
this has nothing to do with the current heatwave - I live in Hilton Head,SC - warm this time of year!!
What is your operating coolant temp when air temp is above 90* and the car is in motion?
What is your operating coolant temp when air temp is above 90* and you are stationary?
fans seem to be working - passenger side is going full blast - driver side is completely enshrouded in plastic!! not sure what it is up to...but there is a horizontal crack where the front shroud piece meets the engine side plastic shroud that encloses this fan and using a piece of paper it seems that there is suction into the slight opening that would say that the fan is drawing air ---would like to be able to see it though!!
thanks!!!
Trusting that the Republic will stand through all this!!!
What is your operating coolant temp when air temp is above 90* and the car is in motion?
What is your operating coolant temp when air temp is above 90* and you are stationary?
fans seem to be working - passenger side is going full blast - driver side is completely enshrouded in plastic!! not sure what it is up to...but there is a horizontal crack where the front shroud piece meets the engine side plastic shroud that encloses this fan and using a piece of paper it seems that there is suction into the slight opening that would say that the fan is drawing air ---would like to be able to see it though!!
thanks!!!
Trusting that the Republic will stand through all this!!!
Tech Contributor
Joined: Jan 2007
Posts: 19,454
Likes: 1,163
From: Dyer, IN
Instructor
Joined: Mar 2011
Posts: 219
Likes: 0
I'm sorry for posting my thing in your thread but you might get more answers aswell.
I did in the last few months lets say about 2k milles after replacing coolant tank that had a small hole at top nipple.
Parts i changed with new in the last year:
- Waterpump
- Thermostat 160degree
- Coolant reservoir
- 15 PSI coolant cap
- Also running now a CoolIt(from SacCity), when activated it runns passanger side vent on full speed.
I always see temps around 200-234. when it hits 235 fans do they're job and cool down on 226! Yes, that is a good thing! my worries are more about how safe it is to run 225-230 constantly- ON A HIGHWAY!(with a/c on and CoolIt operating..) sometimes it seems i run cooler in city stop & go then on highway..
otherwise on the good side- there is no leaks and i dont seem to lose any coolant when i check level in morning and after reservoir replacement, i didnt 'overheat' or geting coolant steaming out.
system properly blurped 2 times
I did in the last few months lets say about 2k milles after replacing coolant tank that had a small hole at top nipple.
Parts i changed with new in the last year:
- Waterpump
- Thermostat 160degree
- Coolant reservoir
- 15 PSI coolant cap
- Also running now a CoolIt(from SacCity), when activated it runns passanger side vent on full speed.
I always see temps around 200-234. when it hits 235 fans do they're job and cool down on 226! Yes, that is a good thing! my worries are more about how safe it is to run 225-230 constantly- ON A HIGHWAY!(with a/c on and CoolIt operating..) sometimes it seems i run cooler in city stop & go then on highway..
otherwise on the good side- there is no leaks and i dont seem to lose any coolant when i check level in morning and after reservoir replacement, i didnt 'overheat' or geting coolant steaming out.
system properly blurped 2 times
Thread Starter
Melting Slicks
Joined: Sep 2002
Posts: 2,329
Likes: 0
I'm sorry for posting my thing in your thread but you might get more answers aswell.
I did in the last few months lets say about 2k milles after replacing coolant tank that had a small hole at top nipple.
Parts i changed with new in the last year:
- Waterpump
- Thermostat 160degree
- Coolant reservoir
- 15 PSI coolant cap
- Also running now a CoolIt(from SacCity), when activated it runns passanger side vent on full speed.
I always see temps around 200-234. when it hits 235 fans do they're job and cool down on 226! Yes, that is a good thing! my worries are more about how safe it is to run 225-230 constantly- ON A HIGHWAY!(with a/c on and CoolIt operating..) sometimes it seems i run cooler in city stop & go then on highway..
otherwise on the good side- there is no leaks and i dont seem to lose any coolant when i check level in morning and after reservoir replacement, i didnt 'overheat' or geting coolant steaming out.
system properly blurped 2 times
I did in the last few months lets say about 2k milles after replacing coolant tank that had a small hole at top nipple.
Parts i changed with new in the last year:
- Waterpump
- Thermostat 160degree
- Coolant reservoir
- 15 PSI coolant cap
- Also running now a CoolIt(from SacCity), when activated it runns passanger side vent on full speed.
I always see temps around 200-234. when it hits 235 fans do they're job and cool down on 226! Yes, that is a good thing! my worries are more about how safe it is to run 225-230 constantly- ON A HIGHWAY!(with a/c on and CoolIt operating..) sometimes it seems i run cooler in city stop & go then on highway..
otherwise on the good side- there is no leaks and i dont seem to lose any coolant when i check level in morning and after reservoir replacement, i didnt 'overheat' or geting coolant steaming out.
system properly blurped 2 times
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Tech Contributor
Joined: Aug 2008
Posts: 2,902
Likes: 21
From: Oak Hill Virginia
Your fans bear the bulk of the responsibility for cooling while you're either stopped or moving very slowly. At highways speeds the air moving through your radiator far exceeds that which your fans are capable of putting out.
I would suggest that your thoroughly clean your radiator and a/c condenser screens. You wouldn't believe how much crap accumulates between the two and blocks airflow.
thanks much, the coolant level is consistent and I do not think there are any leaks in the system...have a 160 thermostat...temps are comparable to yours at speed...with a/c off my temps will drop...I believe both fans are working well...outside air temp plays a big role...thinking of an insulating barrier in the car hood to keep engine bay cooler...thanks again..
Drifting
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
Irish Whiskey;1581212631] thanks have a 160 thermostat
thinking of an insulating barrier in the car hood to keep engine bay cooler...thanks again..
Thread Starter
Melting Slicks
Joined: Sep 2002
Posts: 2,329
Likes: 0
First; those temps are not outside normal range so I wouldn't worry too much. That said; they are probably a little higher than you should be running.
Your fans bear the bulk of the responsibility for cooling while you're either stopped or moving very slowly. At highways speeds the air moving through your radiator far exceeds that which your fans are capable of putting out.
I would suggest that your thoroughly clean your radiator and a/c condenser screens. You wouldn't believe how much crap accumulates between the two and blocks airflow.
OP; I've read your posts several times and still have no idea what your question/problem is... Can you clarify?
Your fans bear the bulk of the responsibility for cooling while you're either stopped or moving very slowly. At highways speeds the air moving through your radiator far exceeds that which your fans are capable of putting out.
I would suggest that your thoroughly clean your radiator and a/c condenser screens. You wouldn't believe how much crap accumulates between the two and blocks airflow.
OP; I've read your posts several times and still have no idea what your question/problem is... Can you clarify?
Thread Starter
Melting Slicks
Joined: Sep 2002
Posts: 2,329
Likes: 0
Tech Contributor
Joined: Aug 2008
Posts: 2,902
Likes: 21
From: Oak Hill Virginia
thanks much, the coolant level is consistent and I do not think there are any leaks in the system...have a 160 thermostat...temps are comparable to yours at speed...with a/c off my temps will drop...I believe both fans are working well...outside air temp plays a big role...thinking of an insulating barrier in the car hood to keep engine bay cooler...thanks again..
If that's the case then you're not really out of range. I've seen temps over 230 sitting in traffic on a hot day though I typically run a little cooler than that.
As I've already said; you would probably benefit from having all of the crap that has built up between your radiator and A/C condensor removed. Some use a long extension on an air compressor to blow them out while they're still installed in the car. I always pull them out to make sure they're cleaned thoroughly (typically twice a year).
Some on here have reported that adding Water Wetter to their coolant was good for knocking off a couple more degrees but I wouldn't expect a huge difference.
Also, your 160 degree thermostat is not helping you while sitting still or moving at low speed. The only way that will make a difference under those conditions is to reprogram your fans to come on at a lower temperature setting. This is done either through tuning software or a handheld tuner like the diablo predator.
Intermediate
Joined: Feb 2012
Posts: 46
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I didn't like that wavering when I got my car either. I bought a real icemaker of a radiator. A double core. I picked up a 160 thermostat then replaced it with the stock 180 something, I had the computer flashed and now it runs at 180 - 185 degrees, sometimes at night it runs as low as 175-180 up and down. The hottest I was able to get it in the desert was 195. I could have gone with it a little warmer I guess, like a steady 195 but at the time, I was not sure how efficient the new capacity of the radiator would be.
Instructor
Joined: Dec 2011
Posts: 181
Likes: 0
I didn't like that wavering when I got my car either. I bought a real icemaker of a radiator. A double core. I picked up a 160 thermostat then replaced it with the stock 180 something, I had the computer flashed and now it runs at 180 - 185 degrees, sometimes at night it runs as low as 175-180 up and down. The hottest I was able to get it in the desert was 195. I could have gone with it a little warmer I guess, like a steady 195 but at the time, I was not sure how efficient the new capacity of the radiator would be.
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Hmm, running stock except with an under drive balancer and the fan operating temps changed. I was seeing about 200*F running 60mph with mid 90's temps over the weekend. My high fans come on at 210*F so I was seeing about that or a few more degrees in town. I really do need to clean my rad and condenser though.
Tech Contributor
Joined: Jan 2007
Posts: 19,454
Likes: 1,163
From: Dyer, IN
Also, your 160 degree thermostat is not helping you while sitting still or moving at low speed. The only way that will make a difference under those conditions is to reprogram your fans to come on at a lower temperature setting. This is done either through tuning software or a handheld tuner like the diablo predator.