I know nothing about this stuff, but I need a metal shop project.

[qtband]

You have half of a torque converter set-up. You have the jackshaft with a driven unit (the pulley) on it. Most people prefer the torque converter over a centrifugal clutch. It kind of acts like an automatic transmission with overdrive. Geared properly it will give you good torque at take-off and a nice top speed. The part that you're missing is the driver. It goes on the engine.

 

[Scarface]

http://www.generatorfactoryoutlet.com/gfo/products/XP16HP.asp?rt=2
How many rpm's do you guys think this would be spinning if I took the governor off this engine? I know most engines are governored at 3600rpm but what are the rpm's when that governor is turned off, does it just depend on the engine?

 

[Doc Sprocket]

A ballpark is 5000-5500 RPM. Lots of variables involved.

 

[Scarface]

You have half of a torque converter set-up. You have the jackshaft with a driven unit (the pulley) on it. Most people prefer the torque converter over a centrifugal clutch. It kind of acts like an automatic transmission with overdrive. Geared properly it will give you good torque at take-off and a nice top speed. The part that you're missing is the driver. It goes on the engine.

centrifugal clutch, I have to look this up...

 

[Scarface]

A ballpark is 5000-5500 RPM. Lots of variables involved.

Oh so in theory if was hitting 25mph at 2,500rpm then when I was hitting 50mph would it be spinning around 5,000rpm, or does it not work even work anywhere close to that?

Oh and since it is 16hp that would give me great take off and make the tires spin in the dirt for a second before the tires grab, if it is geared correctly?

Has anybody used one of these duro max engines for there go kart? My dad has a 10,000 watt duro max generator that runs great.

Sorry alot of questions.

 

[Doc Sprocket]

Oh so in theory if was hitting 25mph at 2,500rpm then when I was hitting 50mph would it be spinning around 5,000rpm, or does it not work even work anywhere close to that?

Basically. With a fixed gear ratio, this would be true in theory. With a CVT, it's going to vary.

Oh and since it is 16hp that would give me great take off and like make the tires spin at first if it is geared correctly?

Yup. Lotsa torque.

 

[r97]

Post some pictures of your kart, CVt, and jack-shaft. If you want to use that 16hp we are going to need to determine whether or not the CVT you have is up to it. I have seen those duromax engines before, most people seem to be happy with them, although mysteryboy doesn't like them.

 

[Scarface]

Ok I will get pics up on here monday night.

 

[Scarface]

My go kart!

Ok so here are some pics i took today.

 

[Scarface]

and the last one.

 

[Doc Sprocket]

Nice kart! You've got the driven half of a Comet 40. It is well worth the money for you to track down the drive unit.

 

[Scarface]

Thanks. Drive unit, which would be the other piece that would drive the belt? One guy (my dads friend) said if you make a kart just make it chain driven what is the purpose of that belt exactly?

Would this be it? http://www.hotgokartpart.com/193-new-mini-chopper-go-kart-comet-40-drive-driven-clutch-system.html

"Recommended for 8-18 H.P. engines. Drive clutch engagement range min. 1600 RPM and max. 3100 RPM."

I will be running it over 3,600rpm so will this still work, or do I have to get a different kind?

 

[kendelrk]

the two parts : driver and driven. this is not the same exact series but basic operation remains the same, i beleive the 40 is flipped from the 30, so dont refer to this video as any sort of way it should run http://www.youtube.com/watch?v=OjhY33f40ds. A torque converter changes your gear ratio on the fly to provide low end torque, then as the centrifugal force opens the driven and closes the driver it changes into an operation for high end speed. a regular centrifugal clutch would cause a major drop in torque and speed and if not geared correctly you could burn up your clutch

 

[Scarface]

Also the back tires are flat but that big sprocket gaurd is only like 1-2" off the ground, is it possible to make some kind of suspension on the kart to raise it just alittle and or get a smaller sprocket. (of course small sprocket is going to change stuff but I don't know what the resaults would be)

 

[Scarface]

the two parts : driver and driven. this is not the same exact series but basic operation remains the same, i beleive the 40 is flipped from the 30, so dont refer to this video as any sort of way it should run http://www.youtube.com/watch?v=OjhY33f40ds. A torque converter changes your gear ratio on the fly to provide low end torque, then as the centrifugal force opens the driven and closes the driver it changes into an operation for high end speed. a regular centrifugal clutch would cause a major drop in torque and speed and if not geared correctly you could burn up your clutch

That video was wild looking lol, never saw that before. So another wards I should have a touqe converter like I have?

http://www.google.com/imgres?num=10...201&start=0&ndsp=18&ved=1t:429,r:10,s:0,i:107
That is what your saying will decrease my tourqe and speed, jsut have it chain driven like that?

 

[kendelrk]

yeah itll go right down the drain, you have a torque converter on your cart, but not of a 30 series, yours is a 40 series which many times before has been said to be bomb proof. heres one in action from what i think to be an ipod by some dude holding it, warning: it is loud http://www.youtube.com/watch?v=M9xmoN3eA2o

 

[Scarface]

Ok, well I am going to buy a new tourqe converter and a sprocket (once I know the size I want) because the ones on my cart are so rusty, I want my kart to look almost like it came right out of the factory.

 

[Scarface]

What should I be doing right now? Picking the engine I plan on running in this go kart and go from there or look at stuff I want to do to the frame? Because i am going to take the roll cage on it now off, then weld on this kind of roll cage on it. I also will need to move my seat back a little because my knees are hitting the steering wheel, I also may just want to get a whole new seat. So right now I am lke where do I start, so can you guys guide me along of what I should start doing?

 

[Scarface]

...

 

[Scarface]

Ok nvm I got it, I need to start looking at brake set up right now.