Safe Water Temperature
- Thread starter Idrees
- Start date
scot-ish
Member +
yeh thats not clever like with just water, that could cause probs, i wouldnt reall drive it too hard with only water, even if you just mix it with some cheap halfords stuff for now, untill you get the pink stuff in it
100 degrees is pretty high i would say, ever noticed, but do yuou have a midget radiator?? damaged radiator??
100 degrees is pretty high i would say, ever noticed, but do yuou have a midget radiator?? damaged radiator??
Dane_Bristol
Member +
My fan comes on at 89-90 Degrees. The cools to around 84 Degrees.
General driving around it is sitting at 82 Degrees according to the Power FC Commander.
General driving around it is sitting at 82 Degrees according to the Power FC Commander.
Jay
Admin
Regular driving I see around 80-90 on the gauge.
Sitting in traffic can bring it up to around 100 but the fan kicks in and brings that down pretty handy.
For reference the stock gauge isn't very accurate. It will sit at the midway point well past 94 degrees (when the stock fan cuts in) and only rises above this is there is a problem.
Sitting in traffic can bring it up to around 100 but the fan kicks in and brings that down pretty handy.
For reference the stock gauge isn't very accurate. It will sit at the midway point well past 94 degrees (when the stock fan cuts in) and only rises above this is there is a problem.
Mike@TD.co.uk
Registered Trader <a href="http://www.Tuning
are you pushing any water out into the overflow? would be careful running the temps upto 100c especially on just water.
Texx
Super Moderator
Anywhere between 80-98°C I would say is normal. If your regularly seeing engine coolant temperatures above 100°C then it would suggest that the cooling system isn't performing sufficiently. Although this isn't a major problem, as depending on the pressure rating of your rad cap the water you have in there shouldn't boil and turn to vapour until it reaches around 119°C (0.9bar cap) or around 125°C (1.3bar cap), but it's not something that should be left unchecked and the system certainly should never be allowed to reach the boiling point of it's maximum pressure rating.
The additives in engine coolant are mainly there as a anti-freezing, anti-vaporising and anti-corrosion measure, they help a little with the efficiency of the cooling system, but the cooling is mainly carried out by the water content itself.
The additives in engine coolant are mainly there as a anti-freezing, anti-vaporising and anti-corrosion measure, they help a little with the efficiency of the cooling system, but the cooling is mainly carried out by the water content itself.
Starlet_Sam
Moderator, Regional Area Reps Supervisor & Gay Car
Water by itself if a better coolant than coolant. Water is extremely efficient, you only put coolant in to stop it freezing in winter and to stop rust and limescale inside the engine. If I lived in a warm country I'd ude de-ionised water only in my system.
Water also has infinate octane, someone should start using water injection (water injection isn't for cooling, like most people believe).
Water also has infinate octane, someone should start using water injection (water injection isn't for cooling, like most people believe).
Franza1
Supermoderator & Area Reps Manager
Not Necesseraly, You also add coolant as it raises the boiling point of the water, the pressure in the system does this also.
Idrees
Banned
That's what I got told too.
I'm reading this on a PFC commander. It's on the rare occasion it reachers 100, and now you mention it, it's only once I stop the car after giving it some.
I will report back once these bloody silicone hoses have arrived and I've got some coolant in there. I'm using a half size dual core radiator with a Tom's 1.3 bar cap. And no, not pushing water to the overflow..
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Starlet_Sam
Moderator, Regional Area Reps Supervisor & Gay Car
But raising it's boiling point doesn't raise it's efficiency, which is what I was referring to. People were saying that he should be careful with only water in there but it makes no odds, as it'll be more efficient with just water.
Raising the pressure using a 1.3bar cap raises the boiling point to 130.9 degrees c. Most coolants are based on anti freeze mainly as road going temperatures are rarely so high. Even with the standard 0.9bar cap the boiling point is 123.4 degrees c.
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dac69er
Super Moderator
the higher boiling point itself doesnt raise the efficiency, but the higher pressure does. a higher pressure means that a higher boiling allows more heat to be absorbed and then exchanged in the rad.
thats isnt written brilliantly, but hopefully you can get the jist of what i mean
