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Post by geh3333 on Jul 6, 2015 19:18:54 GMT -5
What exactly are looking for as a top speed ? You can easily reach 60+ with a 58.5 bbk and some carb and exhaust work . if you do some CVT , and head work , with a few other smaller mods , you should be able to reach 65+ on straight runs. It starts to get a little pricey when it comes to wanting a 150 style scoot to reach the 65+ range. Off the top of my head your lookin at around $700 bucks. Depending on the top end your looking at between 150 & $200 . with a big flow exhaust , carb , and unifilter your lookin at around $175+ . when it comes to the CVT you will need a high performance variator, and clutch assembly which will run you around $200 . then you have the final drive gears , a high performance cam , high performance cdi and coil which would run near $75. I probably missed something but that's pretty much it. And that's if you don't the work yourself. The gy6 engine is actually pretty cheap to modify compared to brand name engines . Your 59mm bbk will actually be a 58.5 . I have a 58.5 bbk with many mods and I'm at 69 mph on straight runs, about 76 mph down some medium longer hills. It takes a good variator to reach these speeds . I went with a k&s variator. The koso variators are junk , do not buy one. |
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Post by heruk on Jul 6, 2015 19:24:11 GMT -5
Thanks guys good stuff
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Post by geh3333 on Jul 6, 2015 19:31:22 GMT -5
To be honest , I think I have the fastest carbed 58.5 bbk'd scoot . I don't even know of anyone with a 61mm bbk that can reach these speeds. I have taller tires then usual and I'm the only one I know of who has a K&S variator. I also weigh around 215 lbs . before I even had the k&s variator I had one of my neighbors who weight about 145 lbs or so take the scoot on a run . he said he had it up to a little over 70 mph up a slight incline I usually only hit around 60-61 mph . man I need to loose some weight, lol.
Just to let you know , my speeds are GPS verified. I made a speed video before I was able to full tune the K&s variator. I hit 66 mph on straight runs and 76 down hill.
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Post by heruk on Jul 6, 2015 21:52:54 GMT -5
Oh,
to answer your earlier question 70 to 75 mph would be legit. looking at your sig it looks like you do have a ton of upgrades on your bike. My budget is limping at the moment. what would be the cheapest upgrade for the most significant top end in your opinion? my only upgrade so far is a performance coil
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Post by JoeyBee on Jul 6, 2015 22:00:01 GMT -5
As Alleyoop would say. "There's no replacement for increased displacement."
The BBK will help. Tuning your carb then CVT would be next.
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Post by heruk on Jul 6, 2015 22:00:59 GMT -5
"Depending on the top end your looking at between 150 & $200 "how much top end will this upgrade give me?
"with a big flow exhaust , carb , and unifilter your lookin at around $175+" and this set up?
"high performance variator, and clutch assembly which will run you around $200" this?
"final drive gears , a high performance cam , high performance cdi" and this?
haha Im gaining weight fast and approaching 210. Maybe the cheapest thing for me to do is to save money on food and lose weight. lol
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Post by heruk on Jul 6, 2015 22:01:47 GMT -5
As Alleyoop would say. "There's no replacement for increased displacement." The BBK will help. Tuning your carb then CVT would be next. ok so displacement is dealing with the cvt and carb? |
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Post by rcq92130 on Jul 6, 2015 22:05:22 GMT -5
Oh, to answer your earliest question 70 to 75 mph would be legit. looking at your sig it looks like you do have a ton of upgrades on your bike. My budget is limping at the moment. what would be the cheapest upgrade for the most significant top end in your opinion? my only upgrade so far is a performance coil Best single upgrade would be engine displacement. Here is a complete 60mm Taiwan BBK (piston, jug, rings, performance head, cam). Missing only is a larger intake manifold ($20) and large carb ($varies), which can easily be added later: www.ebay.com/itm/SCOOTER-GY6-HIGH-PERFORMANCE-TAIWAN-60MM-CYLINDER-KIT-CYLINDER-HEAD-CAMSHAFT-/181785340901?hash=item2a53402be5This drops into most 150cc GY6 engines without any mods to the crankcase - just remove the stock parts and bolt in the new kit. Note: without also adding better breathing ~~~ carb, intake manifold, and air filter, plus better muffler ~~~ you will NOT get the full upgrade performance. But this is where i would start. |
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Post by rcq92130 on Jul 6, 2015 22:07:07 GMT -5
Oh, to answer your earliest question 70 to 75 mph would be legit. looking at your sig it looks like you do have a ton of upgrades on your bike. My budget is limping at the moment. what would be the cheapest upgrade for the most significant top end in your opinion? my only upgrade so far is a performance coil Best single upgrade would be engine displacement. Here is a complete 60mm Taiwan BBK (piston, jug, rings, performance head, cam). Missing only is a larger intake manifold ($20) and large carb ($varies), which can easily be added later: www.ebay.com/itm/SCOOTER-GY6-HIGH-PERFORMANCE-TAIWAN-60MM-CYLINDER-KIT-CYLINDER-HEAD-CAMSHAFT-/181785340901?hash=item2a53402be5This drops into most 150cc GY6 engines without any mods to the crankcase - just remove the stock parts and bolt in the new kit. Note: without also adding better breathing ~~~ carb, intake manifold, and air filter, plus better muffler ~~~ you will NOT get the full upgrade performance. But this is where i would start. No. Displacement is increasing the volume of air/fuel that is drawn in, compressed, ignited. It means, basically, a larger piston (or, if you get ambitious and want to completely disassemble the engine and put in a high performance crankshaft, that too). |
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Post by heruk on Jul 6, 2015 22:47:37 GMT -5
Oh, to answer your earliest question 70 to 75 mph would be legit. looking at your sig it looks like you do have a ton of upgrades on your bike. My budget is limping at the moment. what would be the cheapest upgrade for the most significant top end in your opinion? my only upgrade so far is a performance coil Best single upgrade would be engine displacement. Here is a complete 60mm Taiwan BBK (piston, jug, rings, performance head, cam). Missing only is a larger intake manifold ($20) and large carb ($varies), which can easily be added later: www.ebay.com/itm/SCOOTER-GY6-HIGH-PERFORMANCE-TAIWAN-60MM-CYLINDER-KIT-CYLINDER-HEAD-CAMSHAFT-/181785340901?hash=item2a53402be5This drops into most 150cc GY6 engines without any mods to the crankcase - just remove the stock parts and bolt in the new kit. Note: without also adding better breathing ~~~ carb, intake manifold, and air filter, plus better muffler ~~~ you will NOT get the full upgrade performance. But this is where i would start. thanks but i just sprung for the 59mm bbk, I was thinking of getting a unifilter since it seems to be the cheapest on the list of items. those and roller weights. |
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Post by heruk on Jul 6, 2015 22:51:35 GMT -5
geh3333 why are your roller weights so heavy?
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Post by geh3333 on Jul 7, 2015 3:30:54 GMT -5
geh3333 why are your roller weights so heavy? The K&S variator must have steeper angled ramps in the variator causing the need for heavier weights. With my koso I use to have , I was running 9 - 10 gram weights. The koso variator was much heavier also . i could never get the belt to climb fulley on the fave of the koso variators in owned , but after installing the K&S , I get 100% full belt climb. It just send like a much better quality variator all together. |
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Post by heruk on Jul 7, 2015 20:01:31 GMT -5
geh3333 "Depending on the top end your looking at between 150 & $200 "how much top end will this upgrade give me? "with a big flow exhaust , carb , and unifilter your lookin at around $175+" and this set up? "high performance variator, and clutch assembly which will run you around $200" this? "final drive gears , a high performance cam , high performance cdi" and this? haha Im gaining weight fast and approaching 210. Maybe the cheapest thing for me to do is to save money on food and lose weight. lol
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Post by heruk on Jul 8, 2015 17:17:58 GMT -5
Im up and running though but i have some squeaking like a mouse in a wheel. must be the new rings
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Post by pistonguy on Jul 8, 2015 18:39:25 GMT -5
New Rings, Old Rings, Wont make any Noise.
Not even a Scuffed or Seized Piston will make that Noise.
Check your Right Side Fan cover and your Left Side CVT Cover for something rubbing in there,
Most likely you will find that Mouse in there.
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