1960's twin engine cart frame

[Roy Vanas]

 

[bucky242]

like this click here

 

[Walter Keller]

or like this

Another twin from a book called "Exploring Power Mechanics" copyright 62', 67' and 73' an oldie but a goodie.

 

[Kenny_McCormic]

That thing looks like it could make 100mph no problem.

 

[Walter Keller]

100 plus

Add expansion chambers on the exhaust and a neat fairing - to infinity and beyond!!!!!!!

 

[Roy Vanas]

I see that both of the examples you have posted have Twin engines hooked up to a solid axle....the one i posted has the sprockets hooked to the rims & the axle is a part of the frame...ive wondered how i could get 2 of the same engines with shafts on the oppisite sides & still having pull start
recoils

 

[Kenny_McCormic]

You could run one with a jackshaft with both sprockets the same as the clutch. Be easier that tracking down motors.

 

[Russ2251]

Some 2 cycle manufactures made clockwise as well as counter clockwise engines (as viewed from PTO). 2 cycles can run in either direction and is determined by ignition sequence.
Clinton Panther A400 was one of the more popular 2 cycle engines that was used on this type of kart. Reverse rotation was determined by a mirror image flywheel and breaker point cam. These engines could be purchased in this reversed configuration or retrofitted by the end user by changing recoil, flywheel and cam. Very rarely they show up on Ebay and can fetch some big bucks.
To my knowledge there is only one manufacturer that makes ccw and cw engines.
Here's a link:
US820
Here is pic of twin Clinton kart (courtesy of Mr. Kibble):

 

[Kenny_McCormic]

Some 2 cycle manufactures made clockwise as well as counter clockwise engines (as viewed from PTO). 2 cycles can run in either direction and is determined by ignition sequence.
Clinton Panther A400 was one of the more popular 2 cycle engines that was used on this type of kart. Reverse rotation was determined by a mirror image flywheel and breaker point cam. These engines could be purchased in this reversed configuration or retrofitted by the end user by changing recoil, flywheel and cam. Very rarely they show up on Ebay and can fetch some big bucks.
To my knowledge there is only one manufacturer that makes ccw and cw engines.
Here's a link:
US820

How much is one of those engines?

 

[Russ2251]

Varies. 11 hp probably is around $500 or more.
A '50's Clinton sold for around $50 but was only 2½ to 3 hp.

 

[sayre315]

i've been wanting to make a cart like this only to turn you exelerate on the right side to turn to the left

 

[Kenny_McCormic]

Varies. 11 hp probably is around $500 or more.
A '50's Clinton sold for around $50 but was only 2½ to 3 hp.

Cheaper than a couple KT 100s and a jackshaft. and a 50s clinton sold in the 50s.

 

[Russ2251]

I'm just thinking that with 2 independently driven wheels, the inherent problems associated with live axles would be eliminated.
Such as the tendency for a kart wanting to go straight when turning on hard pavement. Just a thought...as usual, I could be wrong.

 

[Kenny_McCormic]

I'm just thinking that with 2 independently driven wheels, the inherent problems associated with live axles would be eliminated.
Such as the tendency for a kart wanting to go straight when turning on hard pavement. Just a thought...as usual, I could be wrong.

Only if it had independent throttles and you knew how to use them to slow down the inner wheel in a turn. Both engine running at same RPM=both wheels turning same RPM. But im not taking into account the possibility of one engine bogging down.

 

[Russ2251]

But im not taking into account the possibility of one engine bogging down.

Certainly has to be taken into account.
A live axle forces wheels to turn at same speed regardless of conditions.
In an independent configuration, when turning, the inside wheel would turn slower than outside wheel.
It could be argued that inner wheel bogs down while outside wheel spins faster (less resistance).
It seems to me that this would be as close as you could get to a standard automotive differential. Each engine/wheel would be free to do it's own thing.
Envision 1 wheel in sand with other wheel on clean dry pavement. What happens when you punch it?

 

[gocartkid]

The only real way to solve the issue when turning (other than seperate throttles, that might be interesting) would be to let off the throttle when turning, that way both wheels to freewheel. But I'm no expert in this kind of setup...

 

[Kenny_McCormic]

The dry one bites and drags you into the sand. How do racing carts turn on pavement with 1.25" live axles?

 

[Russ2251]

How do racing carts turn on pavement with 1.25" live axles?

Takes a lot of power and a fair amount of driving savvy. Enough to break wheels loose and create a drifting situation.

The only real way to solve the issue when turning would be to let off the throttle when turning, that way both wheels to freewheel.

Absence of live axle is freewheeling regardless of throttle position.

 

[jr dragster T]

Wow. Russ and everyone else saying its hard to turn a live axle on pavement. Well guess what ITS NOT HARD AT ALL!!. Just like kenny mentions race karts with 1 1/4 live axles. Just like my jr dragster. And I have two slicks 8 inches wide each and its not hard to turn around at all.

 

[kibble]

My diff lets me corner like a fiend! :biggrinjester:

LOL, just thought I'd throw that in, I'm not trying to be an a-hole.

Unfortunately, I can't drift, well, much. I did manage to break loose once at the school yard and drift for about a 1/4 of a turn.