Re: Chainsaw engine. Working RPM?
 

Sounds good I'll take the head off today and look at the ports. Dumb question, but should I just make the ports bigger? How much bigger?

Re: Chainsaw engine. Working RPM?
 

.125" is about as thin as you can get the crank, you can go thinner on the head if it's got 1/2" that sleeves into the crank. exhaust ports in the head, along with the intake ports in the head/crank.

Re: Chainsaw engine. Working RPM?
 

Flatheads have significantly better bsfc and detonation resistance than any other engine design. Boost one, or go fist yourself!

Re: Chainsaw engine. Working RPM?
 

alrite bishes. Doin this straight up HMT style. I got a 2 wheel project and the 4 wheel project.


Got some work done today:

Here's the scooter:
http://67.33.14.41/cart/cart1.jpg


Here's the scooter's heart. :awww: I made the part that will come in contact with the tire out of some bushings and JBWeld:
http://67.33.14.41/cart/cart2.jpg

On to the cart:

The rear axle (Stock)
http://67.33.14.41/cart/cart3.jpg


Got the new sprocket tacked on, one new wheel temporarily on:
http://67.33.14.41/cart/cart5.jpg


Throttle lever for the cart. free and effective
http://67.33.14.41/cart/cart6.jpg


Mocked up rear axle on frame with risers installed
http://67.33.14.41/cart/cart7.jpg


Damn thats close. Good thing I have yet to put air in the tires
http://67.33.14.41/cart/cart8.jpg

Re: Chainsaw engine / Projects *PICS ADDED*
 

this is going to be cool...keep up the work i wanna see this thing

Re: Chainsaw engine / Projects *PICS ADDED*
 

Well guys i'm officially an idiot. Im sitting here at work thinking about the power transfer on the cart and realized I welded the small gear onto the chainsaw clutch itself and not the flywheel. Oh damn am I stupid. Hopefully it's not too FUBAR and I can "unweld" it and do it properly. :1

Re: Chainsaw engine / Projects *PICS ADDED*
 

For our high mileage cars in HS we used a tapered cone on the crankshaft and bolted the motor on a plate with tubes welded to the bottom, it would slide on smaller tubes to make the engine move so the tire would come in contact with the bigger or smaller part of the cone, the point on the outside to get us going and move it into the big part to get some speed, these things could really haul ass sometimes close to 50 mph at road america. thats movin when ur crunched up in a car that weighs less than 100 lbs. oh yeah we got 580 miles per gallon with that bitch.

Re: Chainsaw engine / Projects *PICS ADDED*
 

-----. I wanna see you running 90mph.

http://www.3w-modellmotoren.com/moto...ei3W212ib4.jpg

http://www.3w-modellmotoren.com/moto..._212b4_QS.html


Hubvolumen / Cylinder capacity / Cylindrée 212 ccm / 12.93 cu.in
Leistung / Power / Puissance 21,5 PS / HP / CV; 15,8 kW
Bohrung Æ / Bore dia. / Alesage 44 mm / 1.73 in
Hub / Stroke / Course 35 mm / 1.377 in
Drehzahlbereich / Speed range / Vitesse de rotation 1000 - 7500 min-1 / rpm
Gewicht / Weight / Poids 5730g / 12.61 Ibs - incl. Zündung / ignition
Kurbelwelle / Crankshaft / 5 Kugellager / 5 Ball bearings / 5 Roulement à billes
Pleuel / Connection rod / Bielle Nadellager an beiden Enden / Needle bearings on both ends / Roulement à aiguille aux deux cotés
Benzin / Gasoline-Version 1 : 50 - 1 : 80 Mix
IIS - Zündung / IIS - Ignition / V.cc allumage 6,0 V
Propeller / Hélice 34 x 10; 35 x 10; 35 x 12; 36 x 10
2-Blatt / 2-bladed / à 2 pales;
27 x 14; 30 x 12; 32 x 12
3-Blatt / 3-bladed / à 3 pales

Re: Chainsaw engine / Projects *PICS ADDED*
 

http://www.3w-modellmotoren.com/moto...84i_B4_TS.html

60hp madness..

Re: Chainsaw engine / Projects *PICS ADDED*
 

Took the cart for a ride. Not very torquy. lol. Chain keeps popping off so I gotta fix that. Scary at anything over ~5mph

http://img106.imageshack.us/img106/3...1mediumnp3.jpg

http://img400.imageshack.us/img400/8...2mediumun2.jpg

http://img47.imageshack.us/img47/504...3mediumzx5.jpg


Here's the scooter. Still a good bit of work to be done. Hopefully it will actually move once I'm done.

http://img485.imageshack.us/img485/1...4mediumds0.jpg

http://img385.imageshack.us/img385/1...5mediumsv7.jpg