The fan on temp is 205*F.
Tell me why lowering this temp is a good idea, and good for your engine.
Steve
Tell me why lowering this temp is a good idea, and good for your engine.
Steve
The fan on temp is 205*F.
Tell me why lowering this temp is a good idea, and good for your engine.
Steve
Can you inform us?no winners yet...
Fan on temp, not thermostat temp.I can't answer the question, and see it as a bit of a red herring. The thermostat is just there for engine warm-up and has no direct impact on overall system cooling capacity. Maybe there are some slight secondary effects that you can point me to.
I can't answer the question, and see it as a bit of a red herring. The thermostat is just there for engine warm-up and has no direct impact on overall system cooling capacity. Maybe there are some slight secondary effects that you can point me to.
Fan on temp, not thermostat temp.
Good thing we leave the temp setting to the professionals (Stephen & Ivan).If you lower the water temp too much, it will result in the motor not reaching proper operating temp which results unnecessary engine wear. It also will reduce motor efficiency. I'm not about talking coolant efficiency but rather coolant temp.
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Run too cool and power is consumed by inefficacy and wear.To prevent power from being consumed by heat instead of propelling the bike.
First of all nobody calls me Stephen.Stephen lots of conjecture, guesses, hypotheses here - do you have some insight to share? Or are you asking the question as you are unsure?
oh goodness, Apologies Steve - some family and colleagues with same name and prefer Stephen, I didn't even think to check. Get yelled at one way or another on this name - LOLFirst of all nobody calls me Stephen.
I'm asking a question. Just because I ask a question doesn't mean I need to answer it.
Steve
oh goodness, Apologies Steve - some family and colleagues with same name and prefer Stephen, I didn't even think to check. Get yelled at one way or another on this name - LOL
Steve, apparently also my mistake, I was thinking you had the answer, was looking forward - sure many were - if there was something we could learn. Question was posed about a month ago and summer is coming quickly, some parts of the country faster than others!
Got it - think many look to learn from you, lots of experience and trusted pro.I know my opinion on the subject. My question was so I can learn what others think.
Steve
Steve,
I appreciate the question and find these discussions elevate understanding. So...I will take a stab and please don't call me stupid:
Lowering the fan turn on temp will slightly decrease overall water temp and will increase areas of nucleate boiling thus speeding heat transfer in hot spots.
Please be gentle.
I think Nick's answer is the best. {above}Its probably a good idea to lower your fan turn on temp so the fans have a chance to work, and stay ahead of the rising temps, before the water temp climbs too high and causes a problem, such as while stopped or climbing a long hill with a strong tailwind.
Nick
2014 C-14
My .02... I can't find any compelling reason to lower the fan on temp that actually matters. 203-205 is already low. Oil needs to get to 230-240 to boil out impurities. Keep your engine to cool, and it won't clean the oil, it won't be efficient, it won't make it's best power.
This isn't the 60's and 70's when a lot of us started driving. 50 weight oil and punched out 160* thermostats were the norm back then. Times, and our understanding of what really works for an engine, has changed. Think about it... "back in the day a 100,000 mile engine was DONE. IF it even got to that mileage. Now we say "it's just broken in" . Why? Because of better metalurgy, better closer machining, superior (and thin) oils, keeping the engine at higher temps to keep the metal expanded and the oil clean and working a long time.
And the theory that lowing the temp keeps the rider cooler in traffic... OK, so lets say you lower to 195. The Engine is going to produce the same BTU's. Your fan will actually blow hot air on you longer, time wise, at 195* and it's not like it's going to be a cool breeze, either.
JMO.
Steve
well, let me ask it this way... you're in traffic, and the fan comes on, runs, then cycles off. How much cooler was the air to your body when the fan shut off? That's 195 degrees coolant temp. I'm pretty sure you couldn't tell the difference in the air temp between when the fan started running and when it shut off.I was thinking if the 1st gen was higher and they lowered it to 205 in the 2nd gen. Really just a wild guess. I agree that rider comfort would be a superficial reason to lower the thermostat temp and would be better remedied with the different fairing.
I disagree with your last paragraph though or have different comfort levels. The cooler the engine, coolant, and radiator the less I feel heat on my legs. The air coming out of the fairing is cooler. True the fans would run longer but the heat is less intense. Probably a personal thing as to which feels better to an individual. . .
The only time it's a cool breeze is when ambient temps are no higher than 70F.
Pete
Well that's clearly the most information and wisdom to be found in this whole thread. I know I tend to get wrapped up in facts and data, and less about feels. Your comment is spot on.Short of doing the science and writing a paper on the thermodynamics of temperature gradients as they relate to heat exchangers, I don't think anyone will be convinced contrary to their personal belief.
Steve I would agree with that. My thinking tends to be focused more on how it feels when moving. I expect to be cooked somewhat in city traffic and frankly avoid it if possible (my commute to work is on country roads and interstate). And maybe at that point the fan has cut off. But after being in slow traffic and the engine is hot, then speeding up and as the engine cools at speed, the warm air coming out of the fairings on my legs slowly gets less warm. Thanks to the 140F thermostat! So the scenario I was thinking about is not really affected by fan-on temp, probably more by the thermostat.well, let me ask it this way... you're in traffic, and the fan comes on, runs, then cycles off. How much cooler was the air to your body when the fan shut off? That's 195 degrees coolant temp. I'm pretty sure you couldn't tell the difference in the air temp between when the fan started running and when it shut off.
Steve