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Post by enigmas on Jun 20, 2017 2:15:10 GMT
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Post by petervdvelde on Jun 20, 2017 18:41:30 GMT
Vince,
I have been thinking about fitting such a thermostat in the cooler lines. I am not sure but i believe not many modern cars are equipped with a thermostat but on the other hand, these are rather simple to install as i need to make the pipes for my project Rover. The best thing is to fit a temperature sensor to measure the transmission oil temperature in different circumstances and seasons
Peter
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Post by eightofthem (Andy) on Jun 20, 2017 19:52:33 GMT
From memory Peter I think your ZF already has a thermostat fitted, I will have to look through your build sheet to double check.
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Post by enigmas on Jun 20, 2017 21:30:27 GMT
Hi, Richard, Peter and Andy, the reason I posted this info was that I was always aware that the transmission in my car changed much more smoothly when warmed up. Obviously this is more noticeable during the winter months in Melbourne (where I live) when at times the weather can go drop to 3°C - 4°C...but apart from that, I'm aware that all transmissions have an optimal running temp. It just seems like a very sensible device and quite easy to fit. Interestingly the company also sell trans pans with air cooling tubes incorporated in the base of their pans. So if you live in a country with weather extremes IMHO it would make sense to fit the device.  |
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Post by Warwick on Jun 22, 2017 3:26:41 GMT
Nice Vince.
I still don't understand why LPG converters are not thermostatically controlled. I might make one one day. While you need to ensure that the liquid is vaporized and the converter doesn't freeze up, it doesn't make any sense to run the engine on hot gas.
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Post by enigmas on Jun 22, 2017 9:38:02 GMT
Is the LPG (in a gaseous state) hot? Ive always thought that when it changes (vapourises) from a liquid to a gas (under reduced pressure conditions within the convertor) it became colder hence the need to heat the convertor as it typically freezes if there is no coolant circulating.
One of the prime differences as a gaseous fuel, when vapoourised, is that it is not as dense (compact) as petrol and air, so benefits from larger volume manifolds...single plane manifolds...typically race manifolds work very well.
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Post by Warwick on Jun 22, 2017 10:49:30 GMT
That's right, Vince. The phase change from liquid to gas results in a significant drop in temperature, so if the converter isn't heated by circulating coolant from the engine, it will freeze. But if you provide more heat than is necessary, you're producing hot gas. It seems to me that it would be better if the coolant flow through the converter was thermostatically controlled so as to prevent it from freezing, but heating it no more than that. It would be easy to do, and it would be interesting to see what effect it had on performance or consumption.
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