Why water for coolant? - Page 2 - SV650.org

embee · 26-01-11, 04:25 PM

You've obviously thought through the options well. All I'd say is that it's usually ideal for the oil to be about the same as the coolant temp, but when all's said and done there are many ways to skin that cat.

punyXpress · 26-01-11, 04:38 PM

Ethylene Glycol:
Apparently VERY toxic for cats & they are attracted to it for some reason.

Bibio · 26-01-11, 05:13 PM

so in laymen's terms, basically the bike would take longer to heat up and harder to cool?

johnnyrod · 28-01-11, 12:39 PM

Ethyelne glycol is indeed toxic, it also has a sweet taste. There are various campaigns on to make it mandatory to add Bitrex or something else foul-tasting. As said above propylene glycol is non-toxic and is used in cough syrup etc. i read the stuff in th links on page 1, the main thrust of the efficiency increases seems to be based on fan power consumption, but in a car/bike the fan hardly ever runs. And for sure you could increase the running temp a bit, but is it really a good idea when the rest of the bike is made to run at its usual temp? Presumably you'd need to find a new mechanical thermostat to achieve this anyway? And mod the fan switch so it doesn't come on too early?

26-01-11, 04:25 PM	#11
embee Member Mega Poster Join Date: Jul 2003 Location: Warwickshire Posts: 2,804	Re: Why water for coolant? You've obviously thought through the options well. All I'd say is that it's usually ideal for the oil to be about the same as the coolant temp, but when all's said and done there are many ways to skin that cat. __________________ "Artificial Intelligence is no match for natural stupidity"

26-01-11, 04:38 PM	#12
punyXpress Member Mega Poster Join Date: Feb 2008 Location: Riding, North Posts: 2,664	Re: Why water for coolant? Ethylene Glycol: Apparently VERY toxic for cats & they are attracted to it for some reason. __________________ Was: K2 naked in rapid yellow - gone to a better? place Now: Street Triple R

26-01-11, 05:13 PM	#13
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: Why water for coolant? so in laymen's terms, basically the bike would take longer to heat up and harder to cool?

28-01-11, 12:39 PM	#14
johnnyrod Member Mega Poster Join Date: Jul 2003 Location: Doncaster, oop norf Posts: 2,128	Re: Why water for coolant? Ethyelne glycol is indeed toxic, it also has a sweet taste. There are various campaigns on to make it mandatory to add Bitrex or something else foul-tasting. As said above propylene glycol is non-toxic and is used in cough syrup etc. i read the stuff in th links on page 1, the main thrust of the efficiency increases seems to be based on fan power consumption, but in a car/bike the fan hardly ever runs. And for sure you could increase the running temp a bit, but is it really a good idea when the rest of the bike is made to run at its usual temp? Presumably you'd need to find a new mechanical thermostat to achieve this anyway? And mod the fan switch so it doesn't come on too early?

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