Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 43 users online :: 3 registered, 0 hidden and 40 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

chainsaw bike...

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
Sponsored 
  • Author
    Message

Unread postAuthor: FLCLcowdude » Fri Jun 01, 2007 11:15 pm

I am thinking about making one of these. I should just go to the goodwill and buy a bike. Then mod the hell out of it with a 2 HP Echo 60S saw. I think that it would work well.
  • 0


FLCLcowdude
Private
Private
 
Posts: 23
Joined: Thu May 31, 2007 11:38 pm
Reputation: 0

Unread postAuthor: pyrogeek » Sat Jun 02, 2007 1:13 am

deusXmachina wrote:I've seen bikes powered by turbine engines the size of your palm, so I don't see why a chainsaw engine wouldn't work. Also, keep in mind that two stroke engines have twice as many power strokes as four strokes, so less horsepower but more torque. (I think I have that right someone feel free to correct me if I have it backwards)

No, it's 2x as many RPMs, but 1/2 the torque. But with the correct gearing, it all works out. And they are lighter and don't burn out like a 4stroke would in this application.
I would suggest using the bike chain, since it won't cut your leg or arm up if you get in it's way. Or you could go with a spindle drive, using a bike peg on the crankshaft of the engine. That is easy, but it wears the tire out fast. Although a chain drive is a little more dangerous and harder to set up. And a chainsaw would be sufficient, since people have used weed eater engines successfully.

I'm actually building a little scooter using a snow blower engine. I will post pictures and a write up when it's done. Shouldn't be too much longer, maybe a week. Although it may be longer, I'm talking to a girl online all the time now. :)
  • 0

I'm weird, I know it, you don't need to tell me.

pyrogeek
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 457
Joined: Sat May 13, 2006 7:43 pm
Location: moline Illinios
Reputation: 0

Unread postAuthor: pyrogeek » Sat Jun 02, 2007 1:31 am

The ideal setup would be a 2cycle snowblower engine, chain drive, and a clutch. You can find snowblowers in the garbage that need just a little work, they don't have much wear, and the engine can run in any position without burning up. Just need to make an air cleaner for it.
  • 0

I'm weird, I know it, you don't need to tell me.

pyrogeek
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 457
Joined: Sat May 13, 2006 7:43 pm
Location: moline Illinios
Reputation: 0

Unread postAuthor: SpudBlaster15 » Sat Jun 02, 2007 1:28 pm

There is no linear relationship between the torque output of 2 stroke cycle and 4 stroke cycle engines. Given identical displacements and carburation setups, the torque will depend upon the porting/port timing of the 2 stroke engine, the valve size and timing of the 4 stroke engine, the exhaust setup of the engines, the overall rotational mass within the engine, and so forth. Generally, 4 stroke engines will have more low powerband torque (but not double), and 2 stroke engines make more upper powerband torque (but not double). Horsepower means squat.
  • 0

People should not be afraid of their governments. Governments should be afraid of their people.
User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: potatoflinger » Sat Jun 02, 2007 3:24 pm

It has been done before with a scooter, here's the link http://www.instructables.com/id/E78HEILHBUEV2Z3BRP/
  • 0

User avatar
potatoflinger
Brigadier General
Brigadier General
 
Posts: 1136
Joined: Thu Nov 02, 2006 3:26 pm
Location: Maryland
Reputation: 1

Unread postAuthor: VH_man » Sat Jun 02, 2007 3:29 pm

i would keep the sprocket switchers on the bike itself so you have some sort of control over your speed........... if its too hard just keep the back one at least.......

and also, im not skeptical aobut this at all. my dad has a chainsaw he never usues, mught want to chekc this out!
  • 0

User avatar
VH_man
Major General
Major General
 
Posts: 1827
Joined: Sat Dec 09, 2006 6:00 pm
Location: New Hampshire
Reputation: 1

Unread postAuthor: FLCLcowdude » Sun Jun 03, 2007 12:18 pm

I don't think that a mountain bike would be ideal. Get a one speed bike, like a BMX bike.
  • 0


FLCLcowdude
Private
Private
 
Posts: 23
Joined: Thu May 31, 2007 11:38 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: schmanman » Sun Jun 03, 2007 12:26 pm

a mountain bike with gears would be better, especially if you are planning to go up any hills.
  • 0

Persistence is a measure of faith in yourself
User avatar
schmanman
Major General
Major General
 
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Country: United States (us)
Reputation: 0

Unread postAuthor: Kenny_McCormic » Sun Jun 03, 2007 12:47 pm

lukemc wrote:
mopherman wrote:what would you reccomend?

i recomend building one from scratch or at least from a frame that is ment to cary a engine mounting a big enough one on a bike would be very tricky

if you can weld make one if you cant find someone who can and design it all out with some where to put a good size lawn mower engine

something like this

Image

thats a minibike
  • 0


Kenny_McCormic
1st Lieutenant
1st Lieutenant
 
Posts: 283
Joined: Wed Jan 03, 2007 8:59 pm
Reputation: 0

Unread postAuthor: VH_man » Sun Jun 03, 2007 3:40 pm

i looked at my chiansaw today and i realized that the chain would fit perfectly aorund bike chain sprockets. my parents wouldnt let me rip the thing apart though, even though they NEVER use it. made me a little mad. i was gonna get the 3 speed transmision i found on e-bay for 20 bucks too! oh well. i guess ill stick with making airsoft guns......
  • 0

User avatar
VH_man
Major General
Major General
 
Posts: 1827
Joined: Sat Dec 09, 2006 6:00 pm
Location: New Hampshire
Reputation: 1

Previous

Return to Non-Spudgun Related Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Yahoo [Bot]

Reputation System ©'