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The mkiv Supra Owners Club

Water Temperature


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well 100 is boiling point so you would be boiling over,....

:Pling:

where did this come from?:blink:

Apart from the system being pressurised (as said), the coolant mix has a higher boiling point compared to pure water.

 

Anyway, I've never seen my gauge go further than 1/3 of the way, and I've pushed it a lot.

If yours goes halfway or more, you may want to do a good flush.

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I'd bet that 99% of the Supras on here have guages that sit at exactly the halfway point. Everyone knows that the Supra temp gauge is pretty useless (or the cooling system is very very stable).

 

120deg maximum coolant temp is a good figure to work with. It isn't a modern, high pressure system that we're talking about. The stocker is only 1.1bar and I think the "uprated" rad caps run to 1.3 bar?

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The E-Manage Ultimate datalogs the stock water temp sensor, which is great, but unfortunately the calibration is miles off so it reckons my car runs at just under 60degC - hmmmm I don't think so :)

 

However, these datalogs are good for watching how much the temperature varies, and it's not by a lot - 2degC. That's with hard acceleration, housing estate tootling, 50mph traffic and 90+ cruises. Is that implausible or just the sign of a good cooling system?

 

-Ian

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