boredom project. please help

[dizzee]

I was bored so i thought up this little project.

a petrol powered wheelchair.

powered buy a 50cc bike engine or something like that .

Im new to all this diy-ing. can someone recomend a good engine please, wanna go around 50 to keep up with traffic going to drive it to work 0.4 miles away. going to be so funny. ill wear a helmet and a seat belt.. and its going to have a roll bar

im going to mount the engine on the back on a plate. chain driven. im going to customize the front so i can use a gokart steerting setup but use it verticaly but with handle bars with twist and go style setup.brakes on handle bars aswell


i dont really know what i need, sprokets,brakes,ect

please help. i really wanna do this for looks ang giggles

thanks callam

 

[Tony]

ok so i think you are saying you are going to have a stering wheel right? for the rear wheels on a wheel chair they have bearings in them and turn seperatly not together. i would sugest a 1 wheel drive since it is setup perfectly for it. all you need to do is put a sprocket on one of the wheels and hook it up with your engine. i would put a wheelie bar on it for looks and it will probly be weghted down on the back. the engine could be from a snowblower a moped etc. i think a 49cc pocket bike engine on ebay would be good since they can be bought cheap. brakes will need to be very good. i would sugest disk brakes. do you have acces to riding lawn mowers? they have some parts that you could use like the brakes, wheels and some steering parts. i like your idea it is cool, if u need help just message me. post pics of the wheels and frame.

 

[Tony]

also a clutch will be needed these 49cc have lots of preformance upgrades for cheep. it just depends on what you can get or have avalible to use.

 

[Kaptain Krunch]

Riding lawnmowers barely stop themselves at 5mph let alone 50. There steering components are also very cheaply made.

 

[Tony]

mine mower does alright it will completly lock the rear up. it might be easier to get the stering of a mower if you dont now some of the steering like ackerman.

 

[Kaptain Krunch]

Trust me, they use like 3" disks with aluminum brake pads, there useless for anything above 5mph. And the steering is also unsafe and weak, i cant tell you how many tie rod ends i have broken from normal mowing use. I dont care if he doesnt even know what a tie rod is, if a few more hours of research could save his life its worth it (losing steering at 50mph wouldn't be fun).

 

[Kenny_McCormic]

Trust me, they use like 3" disks with aluminum brake pads, there useless for anything above 5mph. And the steering is also unsafe and weak, i cant tell you how many tie rod ends i have broken from normal mowing use. I dont care if he doesnt even know what a tie rod is, if a few more hours of research could save his life its worth it (losing steering at 50mph wouldn't be fun).

people who modify Cub Cadet shaft drive tractors for pulling competition often run aluminum clutch disks. Less slipping.

 

[dizzee]

i was worried about the steering too. so i decided to use moto bike forks with handle bars instead..

i was going to make a custom axel and chain drive both rear wheels like a kart. use a karts braking system aswell.

customize the frame to reach the forks so really it b like a light trike. anyway i hope its fun

 

[Tony]

Trust me, they use like 3" disks with aluminum brake pads, there useless for anything above 5mph. And the steering is also unsafe and weak, i cant tell you how many tie rod ends i have broken from normal mowing use. I dont care if he doesnt even know what a tie rod is, if a few more hours of research could save his life its worth it (losing steering at 50mph wouldn't be fun).

the brakes should be ok with somthing that light. steering can be made to hold up thats what they do with the racing mowers and they go 50 up.

 

[Kaptain Krunch]

the brakes should be ok with somthing that light. steering can be made to hold up thats what they do with the racing mowers and they go 50 up.

Have you ever actually looked at what a lawnmower brake is? the disc is so small and has so much leverage, and the pads are wimpy, its just not worth the risk when you can get a decent drum brake setup for under $30. And again with the mower steering, you look at any racing mower build, they do not use one piece of the stock steering setup, they use U-joints, with solid shafts, high quality tie rods, and they make a whole new front end with different spindles and brackets.
Here is your standard peerless transaxle disc brake 3 inch wide disc, with 1 inch aluminum pads. One pad is on a bracket that is pushed back and forth, the other is stationary, there is no caliper really, and the disc is "floating" meaning it can move back and forth.

people who modify Cub Cadet shaft drive tractors for pulling competition often run aluminum clutch disks. Less slipping.

They way they are made is cheap, and with a 3inch disc there is so much leverage on those 2 little 1"x1/2" pieces of aluminum, that it wont stop a wheelchair at 50mph very well at all. besides, im sure if you you could find a disc brake setup for under $10 at a junkyard, i get mine from sleds, some have a perfect 1" bore and are heavy duty, there free or under $10 almost every time.

 

[Tony]

Mine does not have an aluminum pad it has the same material the automotive industry uses. It will completly lock up the rear wheels on cement. You could upgrade yours to a beter pad and it would work way better trust me.

 

[lemegacool]

this is THE best imo http://cgi.ebay.ca/ws/eBayISAPI.dll...Category=46092&_trkparms=algo=LVI&its=I&otn=1

 

[Raywelder]

this is THE best imo http://cgi.ebay.ca/ws/eBayISAPI.dll...Category=46092&_trkparms=algo=LVI&its=I&otn=1

The best would be a motorcycle caliper and rotor,
I have a motor rotor welded to a 1" bore hub and Im going to using it along with a motorcycle caliper.

 

[lemegacool]

The best would be a motorcycle caliper and rotor,
I have a motor rotor welded to a 1" bore hub and Im going to using it along with a motorcycle caliper.

yeah your option is better but it's not everyone that have acess to motorcycle part easily... oh well

 

[EagleTalons]

Mine does not have an aluminum pad it has the same material the automotive industry uses. It will completly lock up the rear wheels on cement. You could upgrade yours to a beter pad and it would work way better trust me.

My lawn mower can lock up the brakes too... It doesn't mean anything.

 

[Kaptain Krunch]

Plus all mowers use differentials, so its really only locking up one tire, and at 5-10mph thats not all that impressive.

 

[Tony]

My lawn mower can lock up the brakes too... It doesn't mean anything.

it means you can stop good duh...

 

[Raywelder]

yeah your option is better but it's not everyone that have acess to motorcycle part easily... oh well

Ebay, Rotor for 10 bucks, Caliper for 15, Hub for 10 Welding- Me.

 

[Kaptain Krunch]

or you can go to a junkyard and get a whole setup for under 20.

Or you can be like me and get a disc brake setup off an old sled, and most of the time the rotors off sleds are a perfect 1" bore keyed. I got two hydraulic calipers, two rotors, and two master cylinders for a total cost of -$30, thats right -$30 and i havent even parted out the sleds yet, that was just off the pure profit of the trade. One of the sleds i payed $5 for, took off the caliper, master cyl, and rotor and a few other good parts, then took it to scrap and got $13.

(yes Eagle, i know sleds...)

 

[Raywelder]

or you can go to a junkyard and get a whole setup for under 20.

Or you can be like me and get a disc brake setup off an old sled, and most of the time the rotors off sleds are a perfect 1" bore keyed. I got two hydraulic calipers, two rotors, and two master cylinders for a total cost of -$30, thats right -$30 and i havent even parted out the sleds yet, that was just off the pure profit of the trade. One of the sleds i payed $5 for, took off the caliper, master cyl, and rotor and a few other good parts, then took it to scrap and got $13.

(yes Eagle, i know sleds...)

Sleds arent as common in florida as one might think.