hi there could someone please tell me the operating temperatures for my TT300zx? i have a temp light i want to set to come on just before the motor reaches overheating temp. many thanks
mine runs 80 degrees every day . thats with a big rad etc.. id say on a stock rad anything above 95 and your getting into trouble(with AC off) . over heating is at 110 and
I personally wouldn't set it to 90, your still well within operating temp on a hot day at 90/95 and in high summer if it's coming on all the time with the aircon on t 90 degrees, you'll just ignore it. I'd set it to 100 as even on a hot day with aircon, 100 is starting to enter an area of concern, it's 5 degrees before your secondary fan kicks in, and it's before danger territory. But it will give you warning to pull over and let it cool down. Remember don't shut your engine down if it's over heating. As long as you have water in the radiator, pull the CTS plug and get your secondary fan running, open up the heater vents and let it cool down.
The OEM thermostat starts to open at 76.5 degs C, so 80-81 degs would be about right. You will see higher temps though depending on ambient temps and the load on the vehicle (Driving style, freeway vs City traffic and A/Cond etc).
I was just driving around with the aircon on and I was reaching 95 degrees and its a hot hot HOT DAY!
Im quite happy to see anything up to about 105 with a well maintained cooling system. Boiling wont occur anywhere near this if the system is sealed and holding pressure. However, as Andymac says, 100C would be a reasonable figure to take notice! If the cooling system is maintained and left STOCK, your unlikely to ever see temps such as this. Atermarket blingy-assed radiators, different electric fans, removal of the stock viscous coupled fan and or shrouds and overheating is going to be your friend. Simple as that. E
Holy Crap...... This is a thread dig worthy of the Tutankhamun Excavation It's nice to see somebody blowing the cobwebs off a 2007 thread :br:
What about autos? The average temperature on my auto TTZ with OEM setup was approx. 84-85deg C without air on a normal 25deg day and with external cooler. But on a 35-38deg day with air on and driving in traffic or stationary for long periods of time, the temperature 100+ I think the heat from the auto going through the radiator initially might add to the overall engine temperature. And even though an external cooler is used although useless while stationary. Whereas manuals, don't have that issue. I think the engine would run cooler. I also reckon warning at either 95-100 is spot on. 95 is slightly early, but good as a general warning to be mindful. I've installed the Nismo 68deg C thermostat now and hope this helps. But again, I don't think it will do much in traffic. Just my theory.
The concern is more about stability than temperature itself, your car will run perfectly fine with 100 degree water at the thermostat outlet, might pull a little timing and add fuel but will be safe and happy. If your temperature spikes quickly to 100 from 80 when you get onto the highway or when you stop in traffic for a bit then your system is probably not working correctly and the spot temps in the head may be much higher than for the same water temp after a long or aggressive drive. Low temperature thermostats don't do too much help a poorly running system, they increase how much heat you get rid of under good conditions but they won't show any difference once everything is heat soaked and you're running at 90 degrees.
Oh...sheeit... my bad. i didnt see the dates............. Got me there Ian. *hangs head and sad eyes*.............. E
At what point do you consider the temp a problem? You don't want a warning light to activate early or it will become distracting and annoying........Certainly 100c is too late..........as you won't ever get to 101c! So technically the lower the better but it depends on your highest temp Given two identical systems can run different temps means there is no specific temp, so you are best off taking your highest recorded temp with air con on your hottest day. This should normally be approximately 92-95 Celsius unless you live in a very hot or cold climate or your system is slightly different. Then set the warning light for one degree higher than that, this way it's set to your particular system and activates only when trouble is imminent so you can safely assess and remedy the situation before its too late. Its o.k. to dig ancient threads if you need too
What do you mean you won't get to 101? You know you're not supposed to run straight water in your car, right? Anti-Freeze/Anti-Boil raises the boiling point so you can most definitely pass 100*C
This is misinformation. 101 is not too late. I reckon I've seen that temp every summer in city peak hour traffic.
Most coolant manufacturers publish boiling points, eg http://www.nulon.com.au/products/Cooling_Systems/Long_Life_Concentrated_Coolant/#physical-properties consider too that if you are seeing 100 degrees at the sensor you will have much higher temps in the block and around the turbos which over time can cause wear via cavitation. Rings and bearings and head gaskets don't like running hot an a regular basis, either. The ECU is running "normal" maps from 70* to 90* -either side of that and it will make adjustments to compensate.
