ScootDawg Scooter Forum
« which gear to get »

Welcome Guest. Please Login or Register.
May 23, 2013, 10:44am

[Home] [New Topics] [Help] [Search] [Login]



ScootDawg Scooter Forum :: The Garage :: 50cc Scooters and up.... :: which gear to get
   [Search This Thread] [Share Topic] [Print]
AuthorTopic: which gear to get (Read 446 times)
bonnietonton
Great Big Dawg
****
member is offline





Joined: Mar 2012
Gender: Male
Posts: 61
which gear to get
« Thread Started on Aug 2, 2012, 10:09pm »
OK. I broke down and going to get new gears. But which one? I'm not looking at going 60mph. I just want to be able to go about 50mph so I can pass some cars if need be and not be right next to them. I almost got side swiped a few times cause I can't go faster. Here's my set up now.

50mm bbk with matching head
free flow exhaust
going to change back to 18mm carb w/85 or 88 jet
stock airbox
prodigy variator w/6g
1.5k torque spring - thinking of changing to 2k
currently stock clutch spring but want to change to 1.5k - just having problems taking the springs off

right now I can go about 40ish. A little decline 41-2mph. If I can go 30+mph up a slope, that would be good. I can go uphill about 27-28mph now. But change in weather and I'm down to 25-26mph. I really think it's the gearing though that's limiting me uphill. I might be wrong.
Link to Post - Back to Top  IP: Logged
mikeinaus
Great Big Dawg
****
member is offline





Joined: Jul 2012
Gender: Male
Posts: 30
Re: which gear to get
« Reply #1 on Aug 2, 2012, 11:37pm »
i dont know if your scooter has it in it for hills at the speeds you want. up gearing would increase your top speed but it would lower your torque and hill climbing power...

is your belt getting to the top of the variator? maybe you could play with your weights a bit?
Link to Post - Back to Top  IP: Logged
boosterb16
Great Big Dawg
****
member is offline





Joined: Jun 2012
Gender: Male
Posts: 89
Re: which gear to get
« Reply #2 on Aug 3, 2012, 2:06am »
my 50cc scoot with a pod filter and 90jet goes 37-40 on flats and 30 uphill. You should be hitting some higher numbers than me with a 50bbk.
Link to Post - Back to Top  IP: Logged
bonnietonton
Great Big Dawg
****
member is offline





Joined: Mar 2012
Gender: Male
Posts: 61
Re: which gear to get
« Reply #3 on Aug 3, 2012, 4:38am »
My belt dose go to top of variator. 8g kills me on hills. If I'm stuck with 28mph on hills, then I'll live with that. I'm just thinking the gearing is limiting me at 28 uphill. I was able to go at about the same speed stock w/prodigy variator. Nothing changed much other than quicker takeoff and more torque against headwinds. There were no winds today uphill and was able to go 29.

I forgot but I have the longcase with 12" wheels.

I was looking at mainpeace hoca gears or scrappy's. I heard scrappys only increase about 5mph, is this true? If I go with mainpeace, which one would get me to 50 but not kill me uphill? If I stay at 28-29 uphill, then I'll live with that.
Link to Post - Back to Top  IP: Logged
bonnietonton
Great Big Dawg
****
member is offline





Joined: Mar 2012
Gender: Male
Posts: 61
Re: which gear to get
« Reply #4 on Aug 4, 2012, 11:49pm »
Can anyone give me suggestions? Thanks.
Link to Post - Back to Top  IP: Logged
David
Great Big Dawg
****
member is offline





Joined: May 2012
Gender: Male
Posts: 71
Location: Louisville, KY
Re: which gear to get
« Reply #5 on Aug 8, 2012, 11:36am »
http://www.ebay.com/itm/Performance-Part....f355294&vxp=mtr

The only experience I have with changing gears was on my sportbike. I wanted quicker acceleration since I didnt really need to go 180mph+ so I went down in the front and up in the back. I would guess that the opposite would be true to go faster, up in the front and down in the back.

I searched ebay and found this guy. It may not be the cheapest but I like name brand parts. I dont know how much top end you would gain from the 18T front and 46T rear but I may try that for mine in a few months after some other things are done.
Link to Post - Back to Top  IP: Logged
Velocity Scooter
72cc bbk #88 jet
NCY A9 Cam
Dr. Pulley Variator
5g slider
Unlimited CDI and Coil
Iridium plug
prelude2fast
Great Big Guru Dawg
*****
member is offline

[avatar]



Joined: Mar 2012
Gender: Male
Posts: 657
Location: Arkansas, USA
Re: which gear to get
« Reply #6 on Aug 9, 2012, 2:16am »
Mainelyscooters has the same hoca gear sets.. I posted on a thread a few weeks ago about the dif gear ratios.. The hoca gears all seem to be too much for top-end and no bottom.. So your going to be actually lowering everything because you won't have the torque to pull it on accelleration, I know scrappy had a set that ended up being 2.88 where the stock is around 3.40.. Which should equal out to abit more like 20% more top end, but not lose all ur take off and hill climbing.. The hoca gear sets start at about 2.62 down to 2.41.. Which even on a bbk is pushing it.. Just my .02 cents
Link to Post - Back to Top  IP: Logged
'08 Jonway YY50QT-6 83cc
50mm BBK
NGK Iridium plug
Uni Pod Filter
Unrestricted C.D.I
aftermarket coil
full exhaust
Hoca Transmission kit with 1K torque spring and 8G Hoca roller weights
'08 Baja SC50 project bike
[image]
Weeeee
Great Big Dawg
****
member is offline



Znen 4 stroke, 83cc kit, kehin carb, 88main jet, blue CDI, orange coil, impenetrable variator bolt!



Joined: Aug 2012
Gender: Male
Posts: 88
Re: which gear to get
« Reply #7 on Aug 9, 2012, 3:37am »
The gears arent limiting your uphill speed if you go faster on level ground. Its an engine power issue. Thats like riding a bike uphill and going to a higher gear to go up the hill faster, aint gonna happen, makes it harder and bogs down your legs/engine. Sounds like you need to tweak the upgrades you have now.
Link to Post - Back to Top  IP: Logged
peteyparado
Great Big Guru Dawg
*****
member is offline

[avatar]



Joined: Mar 2012
Gender: Male
Posts: 232
Location: hawaii
Re: which gear to get
« Reply #8 on Aug 9, 2012, 6:27am »
i use the hoca 2.41 gear..on my 50mm bbk with big valve head. i lost just a touch off bottom end power.but i know my 50mmbbk can pull.we have this here were i live an can pull up it at about 35+mph with the stock motor it would b trying to hit 20mph...i gained almost 15mph from stock gear to this hoca gears. i love it..my top seed on my stock gears was 40mph with the new hoca gear its 55mph cruising with more throttle to twist..
but if your looking for a good middle gear scrappys 2.88(17/49) is good or hocas 2.65(16/41) these are good all around gears...
Link to Post - Back to Top  IP: Logged
04 dayang dy50qt2
82cc bbk
50mm hoca big valve performance head,A9 cam
hot coil,iridium plug,cdi
20mm carb,100jet,ncy intake,naraku spacer,uni filter
7.5rollers,scooter ninja variator
prodigy racing clutch an bell,17/41(2.41) gearing
performance mrp exhaust
55mph (GPS verified)

acntvman
Great Big Dawg
****
member is offline





Joined: Jul 2012
Gender: Male
Posts: 195
Re: which gear to get
« Reply #9 on Aug 9, 2012, 7:58am »
How many miles since the bbk ? What are your rpm at top speed on flats ? You could be loosing the power in rpm or your bbk has not loosened up yet. Have you gone over your valves since your bbk, I would recheck the valves. Check rpm, , it could be in the roller/sliders.

John
Link to Post - Back to Top  IP: Logged
bonnietonton
Great Big Dawg
****
member is offline





Joined: Mar 2012
Gender: Male
Posts: 61
Re: which gear to get
« Reply #10 on Aug 12, 2012, 10:27pm »
Hey guys, thanks for responding.
I'm not too worried about takeoff, as long as I can get there decently. I think with the bbk I wouldn't take that long to get to top speed with the new gears.
I'm over 300 miles on it now. I think the engine or belt loosened up a little. I put on a new belt when I upped it. My rpm is just about 8000 on chinatach. I can go about 43mph now. Up 1 mile.

I think the engine is putting up the power because I can plow through head winds at 37mph on flats now. Before I would be down to 32-33mph.

It seems like petey have already tried the 2.41 gears and is working quite good even uphill. I think I might go with that.
Link to Post - Back to Top  IP: Logged
millsc
Great Big Guru Dawg
*****
member is offline

[avatar]

tried it, been there done that save some money



Joined: May 2012
Gender: Male
Posts: 2,958
Location: saint joseph,missouri
Re: which gear to get
« Reply #11 on Aug 12, 2012, 10:32pm »
something isnt right i did gps on my 100cc kit today 83cc with 4.5 sliders max rpms 8000 it hit 47 gps on flat and pulled 35 uphill its not broke in and new i can run 35 on flat with half throttle im 200 pounds
Link to Post - Back to Top  IP: Logged
tapout scoot
24mm carb 150cc intake
performance exhaust A9 cam
hoca big valve head 16/50 gears orange coil&cdi
9.25 sliders koso variator performance clutch 1.5k torque spring uni filter
2012 vip cy50a s110cc big bore kit 52mm "88cc"
107 main jet 35 idle http://www.testedscooterparts.com/
bonnietonton
Great Big Dawg
****
member is offline





Joined: Mar 2012
Gender: Male
Posts: 61
Re: which gear to get
« Reply #12 on Aug 12, 2012, 10:55pm »
Maybe becuz I have the longcase w/12" rims? I know it has a lot more torque than before. Regardless if I 1/2 throttle or wot, it'll hit 43mph tops. The engine isn't even screaming like it's maxed out. Sounds like it still can go more w/out a prob. I can fly downhill 50mph.
Link to Post - Back to Top  IP: Logged
carasdad
Great Big Guru Dawg
*****
member is offline





Joined: Apr 2006
Gender: Male
Posts: 2,526
Location: South Haven Michigan
Re: which gear to get
« Reply #13 on Aug 13, 2012, 12:17am »

Aug 3, 2012, 4:38am, bonnietonton wrote:
My belt dose go to top of variator. 8g kills me on hills. If I'm stuck with 28mph on hills, then I'll live with that. I'm just thinking the gearing is limiting me at 28 uphill. I was able to go at about the same speed stock w/prodigy variator. Nothing changed much other than quicker takeoff and more torque against headwinds. There were no winds today uphill and was able to go 29.

I forgot but I have the longcase with 12" wheels.

I was looking at mainpeace hoca gears or scrappy's. I heard scrappys only increase about 5mph, is this true? If I go with mainpeace, which one would get me to 50 but not kill me uphill? If I stay at 28-29 uphill, then I'll live with that.


8 gram weights? That's a bit heavy...and explains a lot... 6 would be more like it... :o
Link to Post - Back to Top  IP: Logged
JONWAY Hornet 2 stroke
72 cc BBK
#90 main jet
5 gram Sliders
1,500 rpm clutch springs
1,500 rpm contra spring
Stock exhaust
Performance CDI
Koso oversized variator
60 watt Stereo,CD,MP3 player with subwoofer.
bonnietonton
Great Big Dawg
****
member is offline





Joined: Mar 2012
Gender: Male
Posts: 61
Re: which gear to get
« Reply #14 on Aug 13, 2012, 12:27am »

Aug 13, 2012, 12:17am, carasdad wrote:

8 gram weights? That's a bit heavy...and explains a lot... 6 would be more like it... :o


I know. That's why I have 6 grams now if you look at the specs. I was thinking with the bbk, I might have enough power to get away w/8g, but I was wrong. So I went back to 6.
Link to Post - Back to Top  IP: Logged
peteyparado
Great Big Guru Dawg
*****
member is offline

[avatar]



Joined: Mar 2012
Gender: Male
Posts: 232
Location: hawaii
Re: which gear to get
« Reply #15 on Aug 13, 2012, 2:59am »
the bigger cc u go the heavier weights u should get.. i tried weights from 5g to 8.5g an my scoot likes a mix of 8.5g with 6g... but every scoot likes um different.
Link to Post - Back to Top  IP: Logged
04 dayang dy50qt2
82cc bbk
50mm hoca big valve performance head,A9 cam
hot coil,iridium plug,cdi
20mm carb,100jet,ncy intake,naraku spacer,uni filter
7.5rollers,scooter ninja variator
prodigy racing clutch an bell,17/41(2.41) gearing
performance mrp exhaust
55mph (GPS verified)

bonnietonton
Great Big Dawg
****
member is offline





Joined: Mar 2012
Gender: Male
Posts: 61
Re: which gear to get
« Reply #16 on Aug 14, 2012, 5:24am »
Maybe my stock gears is best suited for 6g. I'll have to try 8g again when I do change to the hoca gears. Petey, did you change your cdi to a no-rev limit one?
Link to Post - Back to Top  IP: Logged
   [Search This Thread] [Share Topic] [Print]

Loading
Click Here To Make This Board Ad-Free


This Board Hosted For FREE By ProBoards
Get Your Own Free Message Boards & Free Forums!
Terms of Service | Privacy Policy | Notice | FTC Disclosure | Report Abuse | Mobile