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Water Temperature question about R32 GTR???

Aya

By Aya,
in General Automotive Discussion

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Aya Collaborator

Aya

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I had my R32 GTR about 1 month and the car had the Trust Water temperature gauge, normally when the car is moving around 60km at city, the temoerature is around 80 - 83. The highest when drive in city is nearlly 93. The highest temperature when I give it a hit, its 97 - 99. Is that all rite? I asked ADVAN Performance, they said for GTR you can go up to 110 -115 if u had the 1.3 kg Cap on it. I bought the nismo one. But not sure about the temperature if its ok or not. They said I can change the water pump or put a Trust electric fan system to cooling down the temperature to 70 - 75. But I am not planning to modfi the car now. But I still worry about the water temperature. Anyone can help?

blind_elk Grand Master

blind_elk

Posted
Posted
boiling point of water is 100 degrees!!!
But, under pressure (ie with a 1bar radiator cap), the boiling point is raised considerably. Also raised by addition of anti-freeze. That's really the reason you don't remove the cap when the engine is hot - the pressure release causes the water to instantly boil and convert to steam.

The temperatures you are achieving sound quite normal given the circumstances they are achieved under.

Aya Collaborator

Aya

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But, under pressure (ie with a 1bar radiator cap), the boiling point is raised considerably. Also raised by addition of anti-freeze. That's really the reason you don't remove the cap when the engine is hot - the pressure release causes the water to instantly boil and convert to steam.

The temperatures you are achieving sound quite normal given the circumstances they are achieved under.

THx for that, u talk about the same things as ADVAN told me b4.

ferni Grand Master

ferni

Posted
Posted

as blind said... boiling point increases under pressure, thats the reason they pressurize the system... also anti-freeze helps too...

I only have standard water gauge, and mine sits a tiny bit under half way all the time..

mcnamg Veteran

mcnamg

Posted
Posted

yeah i have a nasty burn on my leg from about 2 seconds exposure to high pressure coolant line that split when i was checking the oil in my wifes car. Hose split right at the connection to the thermostat (on a foulcan) and the jet of coolant that came out and hit me was definately liquid but it took about 2 seconds to turn into high pressure steam and spray all over the garage wall in the spot that i had just vacated.

trust me that was definately hotter than 100 degrees the burn took about a month to heal

and left me with a nasty red mark on my leg. :D

but back to the question and yeah as people have said with the addition of coolant and with the system being under pressure the temps you are achieving are not unusual

Aya Collaborator

Aya

Posted
  • Author
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as blind said... boiling point increases under pressure, thats the reason they pressurize the system... also anti-freeze helps too...

I only have standard water gauge, and mine sits a tiny bit under half way all the time..

But on my normal water gauge, its always on the half line. is there any difference between R32 GTR and R33 GTR?

EVL R33 Experienced

EVL R33

Posted
Posted

My 33 GTR sits on 81 - 84 no matter how hard I drive it... Power FC Commander shows peak temp and it never gets over 84 unless I've stopped for fuel or whatever. When I get back in it's up to around 104 then drops back to 81 in about 30 seconds of driving. I wouldn't think 99 while driving around is a good thing, hows your oil temp when the waters that hot??

Also don't believe the stock gauge too much, mine hardly moves until the water gets over 70 degrees then moves quickly up to half way..

Cheers

Brett

Aya Collaborator

Aya

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My 33 GTR sits on 81 - 84 no matter how hard I drive it... Power FC Commander shows peak temp and it never gets over 84 unless I've stopped for fuel or whatever.  When I get back in it's up to around 104 then drops back to 81 in about 30 seconds of driving.  I wouldn't think 99 while driving around is a good thing,  hows your oil temp when the waters that hot??

Also don't believe the stock gauge too much,  mine hardly moves until the water gets over 70 degrees then moves quickly up to half way..  

Cheers

Brett

U r right, I find out the stock gauge doesnt show very well. Coz once the Geeready gauge goes up to 93, the stock still keep it on the half. I didnt check the oil temp. Coz what happen is when u in traffic like move very slow and stop and move, the water temp will goes up to 90. But once u drive up to 60KM and keep that about 12 sec. the water temp will goes down to 81. The normal temp is 80. That's what I worry about for the normal temp, is that too hot? But it never goes more than 100, the top temp was 98.

EVL R33 Experienced

EVL R33

Posted
Posted

I'm no mechanic, but I'd be checking to make sure your radiator fan is working when you are sitting at the lights, it should kick in when the thermostat gets to a certain temp and cool the water down.. It could also be your thermostat is buggered and isn't switching it on...

Other thing is you might want to check that the greddy gauge is not faulty just to count out one possibility...

cheers

Brett

Amaru Veteran

Amaru

Posted
Posted

Does anyone know what temp the fan is meant to kick in at? On my power fc, normal driving usually sits around 85 degrees, however after stopping for fuel it can go up to 100 - 105. I dont hear the fan while idling, but when the temp gets hot, when I start driving off you can hear it (the car sounds like a truck).

:)

Aya Collaborator

Aya

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  • Author
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sounds like my problem Amaru, I asked powerplay today, what they said is to change the thermostat. They also not sure about the normal temp on R32 GTR. The R34 is 75 - 79 for normally. I dont realli know. But it didnt show any bad things once the temp reach 90. Might just give powerplay to check.

BBQ_chiCkenWinG Newbie

BBQ_chiCkenWinG

Posted
Posted

Things you can do:

- Get your cooling system pressure tested for leaks.

- Inspect pressure caps for any deterioration, i.e. rubber has ripped, spring now returning etc.

- Check your t-stat if easily accessible

- Ensure you bleed your cooling system

- Adjust your Coolant/Water ratio (More water = more better cooling, more coolant = less likelyhood of boiling over)

- Flush your whole coolant system including engine block

- Inspect Radiator Fins

- Inspect Radiator Fans operations

- Improve Radiator Ducting (block off all air passages around your radiator at the nose cone, this will force ram your air thru your radiator

I have had cooling problems on my car (not a skyline) but cooling systems are very similar...if those don't work then maybe its time to look for an upgrade.

If you upgrade your water pump it will increase flow rate

If you upgrade your fans it will increase airflow through radiator

If you upgrade your radiator you will increase capacity and possible efficiency (assuming you buy the correct one)

Assuming you have looked at all the above, you are getting hot temps during hard runs I would go down the path of getting a larger-more pass radiator imo.

Amaru Veteran

Amaru

Posted
Posted
sounds like my problem Amaru, I asked powerplay today, what they said is to change the  thermostat. They also not sure about the normal temp on R32 GTR. The R34 is 75 - 79 for normally. I dont realli know. But it didnt show any bad things once the temp reach 90. Might just give powerplay to check.

My car has a brand new thermostat in it, I dont think thats the problem. From what I have been told, the temperature is meant to hold around 82 - 85 degrees. Naturally of course, if you stop this is going to go up as theres no airflow through the radiator. However, I am just wondering what temp the fan is meant to kick in at?

DAN00H Mentor

DAN00H

Posted
Posted

I'm not a big fan of the 'anti-boil' in corrosion inhibitor / anti-freeze (water will eat alloy heads without the inhibitor....). It is raising the boiling point of your system, but I'm not interested in running my engine hotter!

As BBQ Chook said, water is actually better at dispersing heat.

I did see some very interesting writings on this topic - it might be in the maintenance section.

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