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Post by motorhead on Jun 28, 2011 7:49:28 GMT -5
Hello everyone. I wanted to talk about the prospect of taking a stock air cooled GY6 scooter on the interstate for hundred mile trips. one of these convertible beauties below fell in my lap and now i wonder what I can do with it. I want to take it on the interstate from Orlando to key west, 400 miles each way cruising at 65mph. I plan to go to 180cc, hot cam, kevlar belt, racing fan and fan shroud air scoop. Are my touring prospects feasible or not?  |
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Post by 90GTVert on Jun 28, 2011 8:54:54 GMT -5
Cool scoot. Looks like it would make for a pretty comfy ride. I dunno about 65MPH for 800 miles though. If I wanted to cruise at 65MPH and be reliable for long trips, I'd look into a 250cc+.
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Post by superk on Jun 28, 2011 9:32:30 GMT -5
Looks like the BMW C1  China rebuilds it ? My Tip: - 180ccm, good choice if you need flexible acceleration. Maybe you have to do a change of your main-nozzle. - Kevlar-Belt will be necessary for long rides. - I don't know if the effect of racing-fan and air-scoop is that big. Mostly it's just a optic thing ... - I would change the tires. The most china-made tires made by Maxxis or Cheng Shin are real bullshit. The mixture is way to soft, so you lose grip immediately by contact with oil or water! I recommend Heidenau oder Metzeler tires - you can fully trust on them! - Another step would be optimizing of the variator, because if you use tuning camshaft the rest better should adapted. - The clutch won't need any big change. |
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Post by motorhead on Jun 28, 2011 10:35:32 GMT -5
I've been thinking and I think that the best way to go is just get a GPS and tour by taking high speed back roads. I briefly looked into 250cc and they top out around 70-80mph. It seems like 400cc is minimum for long distance interstate travel and who wants one of those big cumbersome things, with no tuning parts available. You can power and gear up a GY6 to be as fast as a 250, but what about cooling. Have any numbers been produced to show airscoop, racing fan, and oil coolers actually lowering temperatures. What about this, anybody dare try this on a GY6.  |
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Post by 90GTVert on Jun 28, 2011 11:49:27 GMT -5
That looks like it would get the job done.
I've been meaning to try to get numbers on some fans and air scoop setups for minarellis. Just another thing on my list I haven't got to check off yet. They do make liquid cooled GY6s. Not too common.
I like your practical approach though, makes the most sense to me. Take it out and see how well it does and decide from there. I will note, I had a friend ride a 150 from Chincoteague, VA to my house in Preston, MD (just shy of 100 miles) and back on highways with up to a 65MPH speed limit. He did all of his riding late at night to avoid heavy traffic and said he was doing as much as 70MPH, but that was trailing a big rig to run in the draft. If you've never drafted a big rig, it's pretty fun. Feels like you have much more power all of the sudden. Regulars cars and trucks will do the same for you, but it's not as strong so you might just be able to use traffic to your benefit. It's not that these things can't do it, it's just not what they're meant for. He had exhaust, UNI filter,and carb tuning. I rode with him and his scoot was no faster than my 99cc 2T at the time, actually slower with equal weight riders, and I could hit the same 60MPH or so of flat ground as him at that time.
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Post by motorhead on Jun 28, 2011 14:11:18 GMT -5
Appearently Taida makes a 62mm water cooled gy6 cylinder, where to buy it? I don't know. But one thing about it is that the head is still air cooled. I guess you could just cut holes for the radiator and fit the shroud anyway but at least its an improvment just wish it was readily for sale.  |
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Post by Fox on Jun 28, 2011 14:41:15 GMT -5
Appearently Taida makes a 62mm water cooled gy6 cylinder, where to buy it? I don't know. But one thing about it is that the head is still air cooled. I guess you could just cut holes for the radiator and fit the shroud anyway but at least its an improvment just wish it was readily for sale. It looks like it's made for Kymco 150's. I'm not sure the cylinder/head bolt pattern is the same as a Chinese made GY6. It uses an electric water pump so yeah you still use the fan shrouds. www.cens.com/cens/html/en/product/product_main_51130.htmlThere's contact info at the bottom of the page but I bet they only sell them in bulk quantities. Maybe they will sell just one. :dunno: |
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Post by 90GTVert on Jun 28, 2011 15:23:42 GMT -5
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Post by stepthrutuner on Jun 28, 2011 16:00:12 GMT -5
I'd upgear around 20% so that baby wouldn't be wrung out all the time. The increased disp., etc. should handle it and there are not many hills in S. FL anyway. Don't know about how the overhead structure on a light scooter would handle those mean crosswinds ya'll get down there.
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Post by motorhead on Jun 28, 2011 18:23:59 GMT -5
Sounds like a plan stepthru. I am a hardcore veteran FL rider and just yesterday I rode home 7 miles from work in pouring rain on my Aprilia (thanks to the Pirelli rubbers), however i think that I will have to watchout for crosswinds on the velux. Plus, the ride on it is so carlike that I think it would be easy to get complacent riding it. Riding those, you don't feel as connected to the road as you do on a little scoot, so I think rain driving warrants more caution on it. BTW, here is a tip for rain driving, use the rear brake more and the front brake less.
Also: I highly advise against 250cc chinese scooters. They are so light on the front end that at high speeds that the front end wobbles, we've had a lot of customers complain about this. Also, the wiring system isn't grounded well and shorts out if you don't open the bike up and ground the electronics.
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Post by stepthrutuner on Jun 28, 2011 18:57:25 GMT -5
I know what you mean on the comfy thing. I see some of those with arm rests. I've ridden a fair amount in the rain. It keeps you on your toes. A couple of years ago I rode from the northern part of the county (about 25 mi.)in dusk-to-dark rain. Somebody in a pickup followed me all the way as if he were my guardian angel. :spin:
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Post by motorhead on Jul 3, 2011 9:28:41 GMT -5
I am thinking of getting a Head Temp Gauge to measure heat on the Velux but before I do I need to know what temperature must you hit on an aircooled scoot to do damage (warp heads, blow gasket, melt piston, etc)?
BTW: Happy 4th of July
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Post by jmkjr72 on Jul 3, 2011 11:05:32 GMT -5
well a lot of the temp you can run depends upon your actauly build
for an air cooled scoot you should soft seize before you warp anything
as for temps i dont know about 4 strokes
the 2 stroke rule of thumb i use
cast iron kits try to keep them under 350 375 and up can be the damage zone
al kits try to keep under 450 475 and up can be the damage zone
but things like piston to wall clerance play a big role into how hot you can get a bore before you have issues
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China rebuilds it 
