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shubonker

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #15 on: June 08, 2010, 11:59:12 PM »
^yea what he said, i wanna know too.
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wordslinger

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #16 on: June 09, 2010, 12:01:04 AM »
..yeah me too...

..oh, that WAS me....
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zombie

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #17 on: June 10, 2010, 05:10:54 AM »
It only makes sense! The jug on a 4t will only increase torque thru the volume of fuel you can flo thru it. The head shape, and valve size can be manipulated, to increase the flow to a larger degree. Add a cam w/ higher duration, and in effect you have increased the working displacement of fuel/air. If it were mine I would find an old head, and a good machine shop. Have the biggest valves they can find cut into new seats. Keep the stock proportions/ratio. (100mm intakex150mm exhaust)=1000mm intakex1500mm exhaust. Any good valve can be cut to length, and any seat can be installed. ! would imagine 100-150 bucks out the door for a full race head. Just a thought.
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wordslinger

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #18 on: June 10, 2010, 12:18:14 PM »
..what about that head that i was looking at for the polini cylinder kit...think it'll work on the stock jug?
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zombie

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #19 on: June 11, 2010, 08:12:09 PM »
I thought about that but the combustion chamber is cut to a larger diameter. The piston in the jug kit may be set up differently also. (clearence for the valves). Maybe try looking up a shop that does motorcycle heads to get an idea on punching out a stock head. It may pay to buy a new stock, and have it worked. I imagine a pair of valves from a 150cc, and new seats would be around 50 bucks. the machine work 50-100.? the head 100? That would be my route.
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joeboy

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #20 on: June 20, 2010, 04:11:42 AM »
The thing is its a trade off between reliability and mpg when you mess with these engines. if you just derestrict them properly they stay reliable with only a slight increase in mpg. I see big bore kits for next to nothing on ebay but why bother. There a lot of hassle for not a lot of reward. If you really want more performance just put the bigger motor in it. Its got all the bigger bits in to be reliable.
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wordslinger

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #21 on: June 20, 2010, 04:13:21 AM »
..i worry not about mpg...only performance...
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joeboy

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #22 on: June 20, 2010, 04:17:07 AM »
Reliability is always an issue, if you upgrade only one part the rest of the engine wont cope for very long.
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wordslinger

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #23 on: June 20, 2010, 04:18:10 AM »
..i'm all about reliability..

my a50 is gettin' ready to trip 50,000kms...
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zombie

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #24 on: June 20, 2010, 04:31:51 AM »
Joeboy has a valid point. Y bother if you are going to blow it up? The answer for me is ....... Getting 13-20HP from a 3-6HP engine means the world to me. ANY DI<K head can put a big engine in any scooter. (Yeah I spelled scooter) Getting more HP from a smaller engine is the goal. I am trying to find a 125cc engine right now to fit my 50cc. That way I don't have any loss while I build my 50 into a 125 that will blow the wheels off any 250cc stock. I was afraid to build the HP into a frame that cannot handle the torque, but I figure at 53 years old if I crash, and burn on a scoot!!!!!!!!!!! So frigin what! At least I got done what I wanted
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zombie

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #25 on: June 20, 2010, 04:32:43 AM »
They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken.
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"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

wordslinger

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #26 on: June 20, 2010, 04:37:02 AM »
...45...55..65 mph..it'sall gona hurt like hell...

..dang..ur 53?...

..i've had a screamin' lil 4-stroke for a while now...she's ran wide th' fck open for the last year...comes a time for upgrading ...

..of course, bearings and seals will fail over time..it's just going to happen when you contnuously turn these engines to their max...

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joeboy

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #27 on: June 20, 2010, 04:38:30 AM »
If its just a hobby and a project to see what these motors can do then great, but if you want a fast reliable scoot for commuting and regular trips it makes sense to go for the bigger motor with the bigger transmission etc.
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wordslinger

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #28 on: June 20, 2010, 04:45:20 AM »
..i've been riding my '08 A50 nearly 50 miles every day since december of 07...
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joeboy

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Re: How can i make my kymco Agilty 50 cc faster?
« Reply #29 on: June 20, 2010, 04:46:41 AM »
Quote from: wordslinger on June 20, 2010, 04:45:20 AM
..i've been riding my '08 A50 nearly 50 miles every day since december of 07...


yeah but you have a clue what your doing... :)
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