Front engine kart idea and q's

[iswim_reelyfast]

Only concern with the driveshaft idea now would be that ill have to turn engine sideways. The engine I found that will fit is a slanted cylinder. Don't think it will fit sideways. I still have the briggs though. It's the straight up and down design.

One other question, should I really need a pulse pump? I will put the tank behind him, but will still be at the same height if not higher than it is on the engine. I'm hoping gravity and vacuum works for me here. Ill try to get pics up tomorrow, I have started cutting a donor frame I acquired. The other frame I have would have had to modify it a lot.

 

[EagleTalons]

Kap'n here has some cheap fuels pumps he could sell you.

 

[iswim_reelyfast]

Id like to know wether I need one or not before I go buying one.

 

[sideways]

Where could I find one of these?

i assume you mean a RAGB? check ebay and your local junk yard, they are nearly allways atached to big electric motors. if you have a friend that runs a farm then ask them if thy've got any spare that you could have. you could buy one new but it really wouldnt be worth it.

just wandering is the car a metal frame with a plastic body on top or is it just a plastic monocoque(all plastic)? if its all plastic you should build a metal frame for it.

you should get a fuel pump for it if you mounting the tank far away from the engine even if it is abit higher than the engine, you dont want fuel starvation problems. remember, the fuel has inertia, even if the tank is higher the fuel still might not get there and having a pump gives you the flexibility of being able to put the tank where ever you want.

Hayden

 

[BriggsTwins]

well I have been working on such a design, using a tractor trans, and an 18 horse twin up front. the way i am transferring power is a tensioner controlled belt, that will act as my clutch and means of power distribution, now. The engine is mounted perpendicular to the tranny, so using two pulleys i can take the belt from perp, twist it in the right direction to my trans and thats it. not complex but making the clutch work will be a treat

 

[BriggsTwins]

forgot this link too iswim, get one!!! they are SO worth it, and for less than 40 to get one its a must!

http://smallenginewarehouse.com/product.asp?PN=16700-ZL8-013&desc=Honda%20Engine%20Parts%20Fuel%20Pump%20Pump%20ASSY

 

[Adam]

Hi if it’s not to late maybe you could just drive the front wheels and steer with the rear wheels like a go-cart in reverse. But you would have to gear down the steering so the cart wouldn’t turn too sharply. You would have to work out the steering but it may save a lot of hassle.

 

[bigfootrules31]

what about make it electric? with a motor in the fromt and the back?

 

[sideways]

what about make it electric? with a motor in the fromt and the back?

its all ready electic!

 

[BriggsTwins]

Well using a smaller 4 stroke you can get away with chain, but hey its no fun!!! you might be able to use a weed wacker engine & driveshaft combo from the wacker, its a wound spring and if you ran it and welded some new ends on you can power a RAGB and do a small chain. Seeing as how a 1:1 box is not really practical you can get away with less power and have lower speeds of the 12:1 or what ever ratio. when you are ready to upgrade, put a larger engine in, but keep in mind that the shaft will have a higher break tendency due to excessive torque.

 

[toofarnorth]

Run that 2.5hp engine to a power steering pump, then run hydraulic lines back to a hydraulic motor that puts power to the axle. With that setup you could put the motor where ever you want you could also install a valve to switch the flow to the motor and give it reverse. Someone on here said the power steering pumps from some late '80s Chrysler vehicles can be used as motors. I don't know it this setup would hold up to a full size kart with a bigger motor but for your cart it should work fine. If you run the pump via centrifugal clutch it should make it more user friendly for a kid to operate it.

 

[iswim_reelyfast]

the body itdelf is all plastic as power wheels come. I used the base from a hover round scooter to build it once, was good and fast and carried me. I will be making a free donor frame fit underneath(with a little cutting and welding), i will put up some pics. Said that once before i know, but i work 6 nights a week and 12 hr shifts so sleep is golden.

 

[BriggsTwins]

I like the power pump idea, that would be cool

can we have some dimensions to your engine bay and engines

I have a MCam program i can draw up a pretty good base you may be able to work from, but still you gotta decide on what kind of power transfer your going to use

 

[iswim_reelyfast]

ok hope i did this attachment correctly, i have these pics so far. The frame is farther along than the pic, i have also put a square base between the front and rear wheels for body mounting and such. Have not mounted the rear wheels yet just measured and debated a lot. Plan to run the widest yet lowest profile tire in the rear. I have 8"x8" wheels from golf cart which are a bit too tall with the current 18.5x8 tires. The engine bay front to back is 14" and side to side is 18" it will only have about 10" or 11" top to bottom bit i planned on cutting the hood from day one.

 

[iswim_reelyfast]

And I failed to mention that the Briggs 5hp is 14x14 which would fit but would be a bit tighter than I want. And heat is a factor, not too worried but would like to have some clearance. The 2.5 I will have to visit my local harbor freight and measure.

 

[freakboy]

run a chain the hole way back is the only idea that would be easy to do that i can think of something like this

O:==========:O the O are sprockets the======== is chain and the : are idler sprockets.

 

[BriggsTwins]

Well, we can manage to fit a shaft drive in, using a weed eater shaft, but 5 horse is a bit much soooo a little les power is needed, OR!! run a 5/8 shaft from a sprocket driven off the engine's CENT clutch down to a miter, or bevel gear, and straight to the shaft. it is extremely simple and very easy to a acomplish the most important part is finding your self a couple bevel gears that you can use.

 

[iswim_reelyfast]

My engine of choice is gonna be the 2.5hp. I plan to run that to a jackshaft and from there run a chain to another j/s and one from there to drive sprocket. A driveshaft seems a bit much since the engine of choice has slanted cylinder like dirtbike engine, and the Briggs will be a bit much for weed whacker shaft, and engine compartment. I will run tensioners front and back on the long chain to keep it from jumping.

 

[iswim_reelyfast]

If all goes well with this one I'm going to get a Jeep power wheels and since ill have more room and time to work with it . I'm interested in this power pump idea.

 

[WI_Chopper]

cant you just port the exhaust back to the fuel tank to form pressure on the gas?