anouther crazy getto gokart 750cc

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rcman50166
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Thu Dec 10, 2009 7:53 pm

The weight and safety you gain with a rollcage is neglegible with an engine that size. It'll still go. Rolling is truly not a problem. The weight of that engine will keep the tires on the ground, not necessarily gripping the ground, but touching. :lol: A 5 point harness would be a good investment in your case. You are going to have to add at least 200 lbs to the frame to make it safe That metal will fatigue and break on you if you don't.
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maggotman
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Thu Dec 10, 2009 8:06 pm

if yah all think i will die on it you can bid for the right to have it if i kill myself on it ive taxed wors things than this lol
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starman
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Thu Dec 10, 2009 8:55 pm

The fact that you are even semi-seriously contemplating speeds in the 60 mph range, much less 135 mph in that contraption tells me you have no clue of the energies and thus dangers involved.

You could at least simulate a differential by putting a 3 to 1 or 4 to 1 chain gear ratio to the wheel....would certainly help with keeping your top speeds down. It looks like you have a roughly 1 to 1 ratio there now.

Maggotman, most things considered "ghetto" aren't really cool at all....this is one of them. This thing is a death trap. What's wrong with just throwing a 5hp Briggs and Stratton on there and living to tell about it??
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Thu Dec 10, 2009 9:47 pm

maggotman wrote: ive taxed wors things than this lol
We have a saying at the office that we use from time to time. I think it applies here....

Just because you've done something stupid 99 times and gotten away with it doesn't mean that you'll get away with it the 100th time.
Last edited by D_Hall on Thu Dec 10, 2009 10:16 pm, edited 1 time in total.
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hi
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Thu Dec 10, 2009 10:01 pm

Put some 35's on there and add an extra differential... along with a roll cage. its pretty sweet though. Even if you dont get the 4 wheel drive and 35's, spend 30 minutes to weld a roll cage on.

remember, saftey third.
"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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rcman50166
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Thu Dec 10, 2009 11:32 pm

Well if you don't listen to us you'll probably have an extremely unreliable go kart anyways. You are far too much concerned with the engine than with the practicality of the design.

This vehicle has a 3hp engine and a 20mph top speed. Notice the 1/8" square carbon steel tubing. It had 3 kill switches and an onboard fire suppression system. These are engineering standards for SAE. You fall quite short.
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psycix
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Fri Dec 11, 2009 7:47 am

Maggotman, lets put it this way: one push on the throttle, and that frame will scream in pain.
When something fails at 60MPH, you will have "a situation"
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maggotman
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Fri Dec 11, 2009 8:12 am

im happy with it if i thought it would snap i would not drive it i would like some better breaks but my last cart dint even have breaks so its some improvement
the engine is a 750 but its an oldie so it onleay got about 90 hp most 600s have the same more more hp you can see in the pictures but the frame has alot of 6mm plate undneth i have had 4 pepole bounce on the frame and it onleay moved buy about 1 cm in the middle i need to sort out the fuel sistem becuse the carbs would be gravity feed normaly so i need a pump to put out about 5 10psi
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rcman50166
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Fri Dec 11, 2009 9:33 am

Are you even listening to us?

:!: The engine is too damn big :!:

Also if you could try to use better grammar. I'm having trouble reading your posts.
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Willdebeers
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Fri Dec 11, 2009 10:25 am

To me it looks like it could feature in one of the "Saw" movies.
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maggotman
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Fri Dec 11, 2009 11:10 am

rcman50166 wrote:Well if you don't listen to us you'll probably have an extremely unreliable go kart anyways. You are far too much concerned with the engine than with the practicality of the design.

This vehicle has a 3hp engine and a 20mph top speed. Notice the 1/8" square carbon steel tubing. It had 3 kill switches and an onboard fire suppression system. These are engineering standards for SAE. You fall quite short.
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it may on leay go at 20mph but is that thing held together with bird sh#?

i ant an expert welder but if i dont get a good joint i get out the grinder and put it right .

have a look on moto karts website.


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thats got a much more powerfull engine

the onlay think i think need inprovement on my kart its the breaking sistem and it could do with a slightleay bigger pitch chain like 520

about the roll cage it is a stupid i dear im not saying it cant roll but have you seen how wide and low down the weght is on this thing if i go around a corner to fast it will just slide out or spin i have never seen a track gokart with a roll cage even the busa karts dont hav them ? any one watched the vids on youtube of track karts with bike engines ?
jeepkahn
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Fri Dec 11, 2009 2:20 pm

That looks to be a yamaha xj750 motor (maxim)... Shifter karts are old news, they don't need to be high tech to be functional, and they rarely flip, I personally see the engine getting torqued out of the frame before he goes fast enough to crash... If you try to be a little less ghetto, you'd be on the right track, ghetto for ghetto's sake is not always a good thing, u8nless your after the much coveted ghetto cannon award...

a vacuum operated lawnmower fuerl pump will fix your fuel supply issues... 1-1.5 psi is all that's needed when switching from gravity fed to uphill feed...
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maggotman
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Fri Dec 11, 2009 3:14 pm

yep its an xj

i dont think a vacume pump would work becuse as you might no the xj has a yics sistem with conects all the intake ports via a small pasageway in the head
i cant locate one ether

some pictures of the bild


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psycix
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Fri Dec 11, 2009 3:47 pm

Only 90 hp he says....
10 would be more then enough for this frame...

The fact that someone else has a weak frame with a too large engine doesn't mean you will be fine.
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Fri Dec 11, 2009 4:31 pm

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