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Post by millsc on Sept 27, 2013 14:49:30 GMT -5
I received the performance flywheel fan from scooter elements today its much smaller and quite a bit lighter than the stock fan. The top fins are reversed from the stock fan but the inner fins face the same way. I felt by hand the airflow and the performance fan actually blew out more air even though its smaller in size which surprised me. I took it for a long ride and the motor actually sounds a little better and it idled smoother. I ordered a temp gauge dipstick to get a comparison of the temp difference. But it seems to work well and looks cool to boot.  |
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Post by JerryScript on Sept 27, 2013 20:40:28 GMT -5
Thanks for letting us know! Looks like a good upgrade when I change my first belt.
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Post by skuttadawg on Sept 27, 2013 21:16:00 GMT -5
Interesting as I read where some said they bought a fan and it did not work as good as the stock one . Sure being lighter takes less power from the engine to spin it . You can get a thermometer for 30 at HF or Lowes that you point it at something instead of having to make contact . I will be borrowing one from a buddy to compare Prestone vs Engine Ice since my temp gauge does not have numbers
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Post by scooterelements on Sept 28, 2013 8:18:46 GMT -5
That's great to hear! Looks like i made a good choice in buying these fans lol. Let me know the temp difference. I got a few asking for CFM not sure how you can measure that. Here is the fan he is talking about. I provided one to him for free for him to test out and give an honest opinion. Also i posted a picture of the so called racing fans which i have heard lots of complaints about engines running a lot hotter with them. I stopped selling them because i got so many complaints from my customers from them.   |
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Post by JR on Sept 28, 2013 9:28:04 GMT -5
They are not trash, they are for racing and people who race on a short drag could care less about heat to an extent. They want HP and the less drag the More HP.
Now I'll wait to see how his performance fan is doing. Right now we are in the fall, put a GY-6 in his state in July and in my state with temps at 100F = and I think it'll run hotter? Why more fins = more air but more fins = more engine work = more heat. You have to have a happy medium.
I also by tests I've done myself in 100F heat know what a GY-6 will do at various speeds with a stock fan so this will be interesting and the best way to measure the heat is by the engine oil temp.
JR
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Post by scooterelements on Sept 28, 2013 10:29:20 GMT -5
They are not trash, they are for racing and people who race on a short drag could care less about heat to an extent. They want HP and the less drag the More HP. Now I'll wait to see how his performance fan is doing. Right now we are in the fall, put a GY-6 in his state in July and in my state with temps at 100F = and I think it'll run hotter? Why more fins = more air but more fins = more engine work = more heat. You have to have a happy medium. I also by tests I've done myself in 100F heat know what a GY-6 will do at various speeds with a stock fan so this will be interesting and the best way to measure the heat is by the engine oil temp. JR We race here all the time at drag strips and racers at the drag strip do not run fans, fan covers or shrouds. So there is no point to use that fan when your only gonna have your scooter on for less than a minute and turn it right off after you made your pass. Most people buying those fans see them online see the word "Racing" and think oh my engine is going to be cooled even better. Most people dont realize that the word racing usually means "lighter" less weight the crankshaft has to turn. I stopped selling them because the ones buying those fans were not drag racers or for there race scooters. They were normal everyday people going back and forth from work or cruising. It may be fall but its still hot in most parts of the country. Here its  degrees today and we are now running this new fan in our scooters including the new Taida 232cc Engine we just built and so far everything has been running great. |
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Post by millsc on Sept 28, 2013 11:25:44 GMT -5
My friend has a laser heat gun gonna test it when rain stops I'll post results and when temp gauge dipstick arrives I'll test that too
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Post by scooterelements on Sept 28, 2013 11:30:18 GMT -5
My friend has a laser heat gun gonna test it when rain stops I'll post results and when temp gauge dipstick arrives I'll test that too careful with that temp gauge dip stick. I bought one from ebay i think and it does not seal right and leaked so much oil. I had to JB Weld it because it comes in two parts. The bottom part has the o ring in it but the other part that screws into it does not. |
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Post by millsc on Sept 28, 2013 11:32:38 GMT -5
Ok ill jb weld it just gonna use it for testing and put the stock dipstick back
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Post by JR on Sept 29, 2013 5:16:23 GMT -5
They are not trash, they are for racing and people who race on a short drag could care less about heat to an extent. They want HP and the less drag the More HP. Now I'll wait to see how his performance fan is doing. Right now we are in the fall, put a GY-6 in his state in July and in my state with temps at 100F = and I think it'll run hotter? Why more fins = more air but more fins = more engine work = more heat. You have to have a happy medium. I also by tests I've done myself in 100F heat know what a GY-6 will do at various speeds with a stock fan so this will be interesting and the best way to measure the heat is by the engine oil temp. JR We race here all the time at drag strips and racers at the drag strip do not run fans, fan covers or shrouds. So there is no point to use that fan when your only gonna have your scooter on for less than a minute and turn it right off after you made your pass. Most people buying those fans see them online see the word "Racing" and think oh my engine is going to be cooled even better. Most people dont realize that the word racing usually means "lighter" less weight the crankshaft has to turn. I stopped selling them because the ones buying those fans were not drag racers or for there race scooters. They were normal everyday people going back and forth from work or cruising. It may be fall but its still hot in most parts of the country. Here its degrees today and we are now running this new fan in our scooters including the new Taida 232cc Engine we just built and so far everything has been running great. You just made the point of what parts dealers were doing to many and that was selling fans that not only allowed engines to run hotter but were a gimmick to start with because they weren't made to do proper cooling. And some racers do use them for minimum cooling especially for the ones who sometimes run back to back races. Also just because it's fall and warmer in one place doesn't mean that's the way it is everywhere? Hi here today in the deep south = 80F. Also tests mean real tests not just I put my hand up there and it "felt" like more air and "my customers are happy". Tests should be on a stock GY-6 which has less than 10Hp not a modded up 232cc engine. I would think this engine would pull the fan well. Let's also remember the GY-6 like any air cooled engine when running in extremely hot weather will bog down to a degree just because of the heat as any engine will, even humidity effects engine performance. As a fellow who has worked in all fields of maintenance and fabrication designing and building air flow systems and the study of them was one of my expertizes over the years and like I said more fins = more air = more work = more drag = more needed HP and can result in more heat if the load is too great. Just like maximum performance on the rpm to HP curve is needed for best engine performance so is air flow and most engine designers rate a fan at a happy medium to the engine. Even the terrain you run in will determine heat. I run in a variety and if you're running in the hills in July you don't need any extra engine drag and it's a given more air from any fan will need more HP. Tests I conducted centered around same distance, same speed, same temperature, humidity and a very accurate thermometer to conduct the tests. Also they were all conducted on the worse temps of 100F+ days and there is a lot of difference even in 95F weather versus 100F+ and even the fact it has been raining where he is at will not be the same as in July. He's in the deep south also and believe me he'll tell you that if you can keep a engine cooler in July you're doing good. Want to eliminate the it feels like it's putting out more air by hand? Want to know how to measure CFM? Get one of these and you can get one on Ebay cheap and yes I have one. www.instrumart.com/products/24158/extech-45118-mini-thermo-anemometerDo wind tests with the stock fan at designed RPM's and lastly check engine speed at WOT on the stock fan and if you got a tach record that also then go to the performance fan and do identical tests, go it on a stock engine which is what lots of people have and then tell me the results so I can base a decision on real facts not a sales gimmick. JR |
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Post by tvnacman on Sept 29, 2013 8:56:40 GMT -5
We race here all the time at drag strips and racers at the drag strip do not run fans, fan covers or shrouds. So there is no point to use that fan when your only gonna have your scooter on for less than a minute and turn it right off after you made your pass. Most people buying those fans see them online see the word "Racing" and think oh my engine is going to be cooled even better. Most people dont realize that the word racing usually means "lighter" less weight the crankshaft has to turn. I stopped selling them because the ones buying those fans were not drag racers or for there race scooters. They were normal everyday people going back and forth from work or cruising. It may be fall but its still hot in most parts of the country. Here its degrees today and we are now running this new fan in our scooters including the new Taida 232cc Engine we just built and so far everything has been running great. You just made the point of what parts dealers were doing to many and that was selling fans that not only allowed engines to run hotter but were a gimmick to start with because they weren't made to do proper cooling. And some racers do use them for minimum cooling especially for the ones who sometimes run back to back races. Also just because it's fall and warmer in one place doesn't mean that's the way it is everywhere? Hi here today in the deep south = 80F. Also tests mean real tests not just I put my hand up there and it "felt" like more air and "my customers are happy". Tests should be on a stock GY-6 which has less than 10Hp not a modded up 232cc engine. I would think this engine would pull the fan well. Let's also remember the GY-6 like any air cooled engine when running in extremely hot weather will bog down to a degree just because of the heat as any engine will, even humidity effects engine performance. As a fellow who has worked in all fields of maintenance and fabrication designing and building air flow systems and the study of them was one of my expertizes over the years and like I said more fins = more air = more work = more drag = more needed HP and can result in more heat if the load is too great. Just like maximum performance on the rpm to HP curve is needed for best engine performance so is air flow and most engine designers rate a fan at a happy medium to the engine. Even the terrain you run in will determine heat. I run in a variety and if you're running in the hills in July you don't need any extra engine drag and it's a given more air from any fan will need more HP. Tests I conducted centered around same distance, same speed, same temperature, humidity and a very accurate thermometer to conduct the tests. Also they were all conducted on the worse temps of 100F+ days and there is a lot of difference even in 95F weather versus 100F+ and even the fact it has been raining where he is at will not be the same as in July. He's in the deep south also and believe me he'll tell you that if you can keep a engine cooler in July you're doing good. Want to eliminate the it feels like it's putting out more air by hand? Want to know how to measure CFM? Get one of these and you can get one on Ebay cheap and yes I have one. www.instrumart.com/products/24158/extech-45118-mini-thermo-anemometerDo wind tests with the stock fan at designed RPM's and lastly check engine speed at WOT on the stock fan and if you got a tach record that also then go to the performance fan and do identical tests, go it on a stock engine which is what lots of people have and then tell me the results so I can base a decision on real facts not a sales gimmick. JR I gots one of them there tools , and depending on the season you measure hot or cold air . The better HVAC techs use then to check if designed air flow is being delivered by a register or how many cfm's a return is pulling . It has been more critical with high efficiency variable speed air handling units . Some will give you dry and wet bulb temp , dew point and RH% . JR , I give you credit you nailed this one !!!! I did skim your post , your head on with humidity and ambient temp even elevation plays a part in it . Too bad we never worked together , I think it would have gone to one extreme or the other . I think it would have been on the positive . John |
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Post by jeepsteve92xj on Oct 5, 2013 9:33:03 GMT -5
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degrees today and we are now running this new fan in our scooters including the new Taida 232cc Engine we just built and so far everything has been running great. 
