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Post by monkeywrenchcycles on Sept 29, 2010 16:06:00 GMT -5
  Started out life as a Pierspeed TGB 150cc GY6 scooter. Now has a 59mm big bore kit, High performance cylinder head, performance camshaft, performance intake, performance 30mm carb, open air filter, NCY no rev limit CDI, performance exhaust, and kevlar CVT belt. With all that and going off of the stock speedometer, best so far has been 70mph at 1/4 throttle on flat ground(more throttle doesnt raise mph), I can maintain 70mph going uphill, and 0-60 in roughly 8 seconds. Biggest difference is 0-50mph. It has alot of get up and go now. All the testing was done sitting upright on the scooter also. I am going to be changing out to the stiffer "big variator spring", and lighter roller weights to get more acceleration out of it. Also this model came with an oil cooler stock so no need to add one. |
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Post by educatordan on Sept 29, 2010 19:02:33 GMT -5
Nice looking scoot! Keep us updated.
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Post by shadowwalker on Sept 29, 2010 20:25:34 GMT -5
Hate to pop your bubble but that chinometer is lying. At an indicated 75 mph most of our bikes only go 55 to 60 mph. Get a gps or use an app on a smart phone if you want to know how fast you are really going. Otherwise nice bike and great work on the mod up. Keep it rolling man.
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Post by netmare on Sept 30, 2010 7:15:19 GMT -5
Haw's that one strap muffler working out for you? I just ordered one and was concerned about that. I guess if it's not a Chinese strap, it may be stronger?
cg
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Post by shanghaid on Sept 30, 2010 8:06:59 GMT -5
Poor thing needs a bubble bath!  |
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Post by monkeywrenchcycles on Sept 30, 2010 9:08:12 GMT -5
Haw's that one strap muffler working out for you? I just ordered one and was concerned about that. I guess if it's not a Chinese strap, it may be stronger? cg It actually works really nice. It came with two straps and a bracket. Cost $150. It is plenty stong enough with only one strap and i made a custom bracket to mount to the shock bolt. |
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Post by monkeywrenchcycles on Sept 30, 2010 9:11:36 GMT -5
Hate to pop your bubble but that chinometer is lying. At an indicated 75 mph most of our bikes only go 55 to 60 mph. Get a gps or use an app on a smart phone if you want to know how fast you are really going. Otherwise nice bike and great work on the mod up. Keep it rolling man. I know its not accurate but based off of starting numbers from the stock speedo, the mods made a big difference. I dont think its off by to much. At 70mph i was in the fast lane passing cars so maybe off 5mph at that speed based off of flow of traffic in DFW traffic flow. |
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Post by monkeywrenchcycles on Oct 5, 2010 18:08:16 GMT -5
Update: With the yellow (2000 rpm) variator spring and 9 gram rollers (stock was 11g) it made a VERY noticeable difference especially up to 20mph. Now if you are rolling along at say 15mph and hit the throttle it will take off!!
I did notice while i was changing those that the new Kevlar CVT belt is not letting the CVT ride all the way in low gear though. On the back (clutch) pulley it is noticeably lower in there than it was before with the stock belt. It does have the right size belt, btw. I have heard that kevlar wont stretch so i wonder how much low end im losing with the kevlar belt...? Might throw the old belt back in there just to see what effect it has.
Next on the agenda is a racing clutch and 2000 rpm clutch springs.
Also have seen the engine gear sets. Has anyone experimented with those? I would like to mess with that next, so if anybody has any tips let me know
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Post by rocketdog on Oct 6, 2010 2:43:07 GMT -5
"I did notice while i was changing those that the new Kevlar CVT belt is not letting the CVT ride all the way in low gear though". Do you mean on the variator? If that's the case, you can shim the drive face out until it does. A machine shop could make you a few shims on the cheap I bet.
RD
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Post by robprid on Oct 6, 2010 3:57:14 GMT -5
I did notice while i was changing those that the new Kevlar CVT belt is not letting the CVT ride all the way in low gear though. On the back (clutch) pulley it is noticeably lower in there than it was before with the stock belt. Thats probably why you are getting such a fast top speed . If you equate it to a chain running on a bicyle you would change to the smallest sprocket at the back to get your fastest speed . |
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Post by monkeywrenchcycles on Oct 6, 2010 9:46:12 GMT -5
"I did notice while i was changing those that the new Kevlar CVT belt is not letting the CVT ride all the way in low gear though". Do you mean on the variator? If that's the case, you can shim the drive face out until it does. A machine shop could make you a few shims on the cheap I bet. RD When the cover is removed you will see that the front variator has the belt riding all the way inside it and the back pulley where the clutch is you should see the belt all the way up the pulley. That is low gear. Well it is lower in the back pulley than it was with the old belt because im sure that it is not as long and its causing it to be in a slightly higher gear than it would have been with the old belt. Now i understand why people who change to a new Kevlar belt always report a slightly higher mph. |
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Post by sprocket on Oct 6, 2010 15:28:14 GMT -5
Kevlar belts don't stretch well...I hate them...
just my 2cents
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Post by netmare on Oct 6, 2010 15:44:44 GMT -5
Kevlar belts don't stretch well...I hate them... just my 2cents What would suggest? I'm about to drop a new variator and some lighter weights into mine. I don't care about the top end as much as do acceleration and hill climbing ability. cg |
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Post by sprocket on Oct 6, 2010 15:56:34 GMT -5
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Post by monkeywrenchcycles on Oct 21, 2010 14:08:09 GMT -5
Had to replace the Starter clutch and went ahead and changed the clutch and springs with a Hoca racing clutch. Havent test rode it yet. Ill post the results when i do
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