17hp 5 speed shifter kart plan
- Thread starter huseyinozsut
- Start date
- Status
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
It is for spindle again, I guess the outer radius of this hub is same with axles (1" or 1-1/4") so you can connect a brake hub on it (see the locker holes? I guess they are also in same size with axle locker holes.)
Or it is vice-versa... this is the brake disc hub, and we will be connecting rear wheel hub on it.
Or it is vice-versa... this is the brake disc hub, and we will be connecting rear wheel hub on it.
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
edit: ----sorry----double post----
Anyway, I mailed http://www.robertskartshop.com for shipping prices of Maxxis EL slicks and douglas wheels; but I couldn't get an answer. Are they active still?? Or is it another ghost website?
Anyway, I mailed http://www.robertskartshop.com for shipping prices of Maxxis EL slicks and douglas wheels; but I couldn't get an answer. Are they active still?? Or is it another ghost website?
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
I found a differential with reverse gear. I'll buy it. It looks like this:
It is a Muravey Trike differential.
Also found axles which fits directly muravey differential:
And found hubs which will fit directly to axle:
But here is the question. This hub is for 8" standart wheels. I want to use 6" douglas go kart wheels. That hub's radius is 4.33" and I don't know whether an 6" go kart wheel has that much radius inside the mounting place? Can anybody help?
And with this way it is very hard to mount disc brakes just before the tire. My plan is to mount them just after the differential. So I'll also force my axles. What do you say about it? Can my axles tolerate that?
It is a Muravey Trike differential.
Also found axles which fits directly muravey differential:
And found hubs which will fit directly to axle:
But here is the question. This hub is for 8" standart wheels. I want to use 6" douglas go kart wheels. That hub's radius is 4.33" and I don't know whether an 6" go kart wheel has that much radius inside the mounting place? Can anybody help?
And with this way it is very hard to mount disc brakes just before the tire. My plan is to mount them just after the differential. So I'll also force my axles. What do you say about it? Can my axles tolerate that?
Doc Sprocket
*********
I think so. Inboard brakes are not a particularly new idea, and those axleshafts look pretty solid.
fowler
New member
they look like standard mechanical pto shafts with a small conversion shaft in one end
i diont think any thing u are going to do is going to break them
i diont think any thing u are going to do is going to break them
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
Thank you!! I'm buying all of them then. Now I need to find suitable front and rear A-Arms, spindles, steering components, and wheel/tire. Then I'll begin to build my chasis...
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
I bought differential and axles. I understood that I need to increase the length of the kart. Also I saw that I need to use 8" rims. I plan to use around 8" wide tires on rear (7.5 to 8.5), 6" wide tires on front (6 or 6.5). For example 16-6.5-8 for fronts, 18-8-8 for rears.
My rear hubs are ready. I'm searching for front spindles and hubs right now. For both hubs and spindles I can use ATV parts. But reather using go kart spindle; because I don't know camber of ATVs and don't know wheather it is fine for me or not. Also I will need to modify the ATV spindle for right ackermann angle. So I would like to use kart spindle with ATV hubs. How can I do that? By changing the bearing dimentions of hubs, can I make them to use with kart spindles?
drum brake/hub for fronts:
Or Disc brake/hub for fronts:
Or can you suggest me a reasonably cheap solution for using 8" tires on front with brakes?
My rear hubs are ready. I'm searching for front spindles and hubs right now. For both hubs and spindles I can use ATV parts. But reather using go kart spindle; because I don't know camber of ATVs and don't know wheather it is fine for me or not. Also I will need to modify the ATV spindle for right ackermann angle. So I would like to use kart spindle with ATV hubs. How can I do that? By changing the bearing dimentions of hubs, can I make them to use with kart spindles?
drum brake/hub for fronts:
Or Disc brake/hub for fronts:
Or can you suggest me a reasonably cheap solution for using 8" tires on front with brakes?
machinist@large
Active member
Do you have access to a machine shop? And, do you have some experience using machine tools? How about a friend with both? The photo of the hub you posted makes me wonder if you could add spacers to ad your rotors on the back side of the hub (like the photos of the ATV hubs you showed) using longer bolts to thru bolt every thing together. I don't know what skills/ mechanical resources you have at your disposal; just speaking as a machinist, it wouldn't take the fanciest shop in the world, just a little care and patience.
If you don't mind my asking, are you by chance an engineering student? Your post seem to be well thought out, and the questions you've been asking remind me of some of the ones I've met while they were doing their internships. Good luck with the build; looks like fun.
If you don't mind my asking, are you by chance an engineering student? Your post seem to be well thought out, and the questions you've been asking remind me of some of the ones I've met while they were doing their internships. Good luck with the build; looks like fun.
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
Actually I'm from Turkey, and I studied on Business Administration. We are 4 people who are building this kart and two of them are engineers; but I'm the designer and the problem solver!? 
At back, we are planning to use disc brakes just after the differential. Our axles are extremely solid (my 185hp 94 saab 900 turbo had much normal axles), so I don't think that using disc brakes before the axle will be a problem. But we are also considering to use brakes also at front. Because we will use this kart at normal road, which has up and down hills. We want a good brake ability (There is a lake here, which is a restricted area, only METU University members can go in and we plan to drive our kart there, an asphalt road, makes a loop around the lake. There will be minimal car traffic. But again, with uphills and downhills.
Our skills are good; but we don't have any equipment. Now we are getting the parts, as we have all the parts, we will check our design, and change it according to the parts we own. Then we will use several shops to build the chasis, cnc jobs and milling jobs.
At back, we are planning to use disc brakes just after the differential. Our axles are extremely solid (my 185hp 94 saab 900 turbo had much normal axles), so I don't think that using disc brakes before the axle will be a problem. But we are also considering to use brakes also at front. Because we will use this kart at normal road, which has up and down hills. We want a good brake ability (There is a lake here, which is a restricted area, only METU University members can go in and we plan to drive our kart there, an asphalt road, makes a loop around the lake. There will be minimal car traffic. But again, with uphills and downhills.
Our skills are good; but we don't have any equipment. Now we are getting the parts, as we have all the parts, we will check our design, and change it according to the parts we own. Then we will use several shops to build the chasis, cnc jobs and milling jobs.
Merhaba,
Actually, The question as to whether you have access to a machine shop is a valid question. Avett - we understand that you are in Turkey. They have machine shops in Turkey (at least they did when I worked there).
..
Your Go Kart project is intriguing.
..
I don't think 4" of ground clearance is enough (you should go to 6-8" clearance. Back in the 70's we built a Go Kart (actually three Karts) outside of Karatas. We found that the 6-8" ground clearance was a better choice (Chok Guzel). Yes, Turkey has a lot of pot holes, and even the road to our site (a concrete road) had pot holes.
...
We usually had more fun at the Beach on the Mediterranean though. The Karats Village kids loved it.
..
Good luck with you GoKart (we call then scatt carts, because they scatt....).
Dave Mason
Actually, The question as to whether you have access to a machine shop is a valid question. Avett - we understand that you are in Turkey. They have machine shops in Turkey (at least they did when I worked there).
..
Your Go Kart project is intriguing.
..
I don't think 4" of ground clearance is enough (you should go to 6-8" clearance. Back in the 70's we built a Go Kart (actually three Karts) outside of Karatas. We found that the 6-8" ground clearance was a better choice (Chok Guzel). Yes, Turkey has a lot of pot holes, and even the road to our site (a concrete road) had pot holes.
...
We usually had more fun at the Beach on the Mediterranean though. The Karats Village kids loved it.
..
Good luck with you GoKart (we call then scatt carts, because they scatt....).
Dave Mason
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
Hahaha!! Is it Ankara Karatas? Or somewhere else?? If it is Ankara Karatas then you would know my father and my uncle! They were building two 12 meters fiber yachts there in 80's.
From 70's to now, roads became much better; but the place we are going to use the cart is a restricted area (only uni. member can come in). Because of that uni. didn't care about the roads so there are filled old holes in the road, which makes small bumps. I plan to build the cart's clearance adjustable. I also began to think 4" is a bit low; if I can manage to adjust it between 4" and 7" I think it will be perfect.
We know lots of good machine shop owners. Actually my plan is like this:
1) Exhaust shop will cut the chasis material. There are lots of angled cuts in my design. The machines in exhaust shop can cut them exactly I like.
2) I know one of the finest welder in Ankara and he will do the welding for a very reasonable price.
3) If I need cnc or milling job, there is also someone I know.
So design and supervision will be by us and cart will be built by professionals. Because buying a simple welding machine is way much expensive than having the whole chasis welded to our guy. And yet he will weld it much better then us. Our final aim is high speeds, so wrong welding should not be an option also.
For months the cart will be transferred from one shop to another...
I'm trying to buy spindle and front hubs for the kart. I'm looking for ATV hubs; because some of them have hubs with disc brakes. But I don't know wheather I can use it with go kart spindles. Most spindles are 1 1/4" ; but there is nothing written about ATV hubs. So can anybody help me about that?
From 70's to now, roads became much better; but the place we are going to use the cart is a restricted area (only uni. member can come in). Because of that uni. didn't care about the roads so there are filled old holes in the road, which makes small bumps. I plan to build the cart's clearance adjustable. I also began to think 4" is a bit low; if I can manage to adjust it between 4" and 7" I think it will be perfect.
We know lots of good machine shop owners. Actually my plan is like this:
1) Exhaust shop will cut the chasis material. There are lots of angled cuts in my design. The machines in exhaust shop can cut them exactly I like.
2) I know one of the finest welder in Ankara and he will do the welding for a very reasonable price.
3) If I need cnc or milling job, there is also someone I know.
So design and supervision will be by us and cart will be built by professionals. Because buying a simple welding machine is way much expensive than having the whole chasis welded to our guy. And yet he will weld it much better then us. Our final aim is high speeds, so wrong welding should not be an option also.
For months the cart will be transferred from one shop to another...
I'm trying to buy spindle and front hubs for the kart. I'm looking for ATV hubs; because some of them have hubs with disc brakes. But I don't know wheather I can use it with go kart spindles. Most spindles are 1 1/4" ; but there is nothing written about ATV hubs. So can anybody help me about that?
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
Ok I think I found something to mount a disc brake to front... A double flange wheel hub can do my work I guess...
http://www.bmikarts.com/item/Double-Flange-Wheel-Hub---White-262030-768
http://www.mfgsupply.com/m/c/8-10083.html
One of these flanges has 2-3/4 total length. So it will fit most of the spindles. The thing I didn't understand is they say it has 2-7/8 bolt circle. Will it fit 3" bolt circle wheels?
And another thing, I will use my kart at high speeds. With decent bearings will this hubs be a problem at high speeds?
Edit:
After some research I understood that it is not possible. I can build a converter hub here; but it won't be cheap. So what I understand is this: there is not a double flange wheel hub with 4" bolt circle. If there was it would be a very cheap solution.
Solution 1:
I can buy this and weld a disc hub on it
http://www.mfgsupply.com/m/c/AZ2297.html
Solution 2:
I can buy two of this and buy long studs, with long studs I can connect disc, hub1, hub2, wheel together... A little bit more expensive; but much easier.
http://www.bmikarts.com/item/4-on-4-Billet-Aluminum-Idler-Hub-380100-or-380104-6187
http://www.bmikarts.com/item/Double-Flange-Wheel-Hub---White-262030-768
http://www.mfgsupply.com/m/c/8-10083.html
One of these flanges has 2-3/4 total length. So it will fit most of the spindles. The thing I didn't understand is they say it has 2-7/8 bolt circle. Will it fit 3" bolt circle wheels?
And another thing, I will use my kart at high speeds. With decent bearings will this hubs be a problem at high speeds?
Edit:
After some research I understood that it is not possible. I can build a converter hub here; but it won't be cheap. So what I understand is this: there is not a double flange wheel hub with 4" bolt circle. If there was it would be a very cheap solution.
Solution 1:
I can buy this and weld a disc hub on it
http://www.mfgsupply.com/m/c/AZ2297.html
Solution 2:
I can buy two of this and buy long studs, with long studs I can connect disc, hub1, hub2, wheel together... A little bit more expensive; but much easier.
http://www.bmikarts.com/item/4-on-4-Billet-Aluminum-Idler-Hub-380100-or-380104-6187
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
Now while hunting for parts, I changed my design. I will make a-arms with rod-ends. All a-arms will have adjustable toe/camber and ground clearence. I want my A-arms to be flat like f1; and without changing that I want to have adjustable ground clearance. Here is my solution for rear a-arms:
fowler
New member
what u want are called Rose joints
they are used widely in the suspension system of many custom vehicals
also id try to keep the shock absorber closer to the centre of the a arms
the way u have it will put too much twisting force on the a arms
also where is the engine going?
they are used widely in the suspension system of many custom vehicals
also id try to keep the shock absorber closer to the centre of the a arms
the way u have it will put too much twisting force on the a arms
also where is the engine going?
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
Ok I googled rose joint. What is the difference between rose joint and same looking rod end? (I think same thing? I'm not used to English technical terms, sorry) ı was planning to use rod ends. Shocks will be as closer to center; but my axles are huge, I can move it 2-3cm nothing more. So I can put another shock (100% same shock), at the back symetrically. In the photo it is not seen; but there is like 40cm between the seat and upper A-arm mounting place. We can increase it when building.
fowler
New member
i think it is just a case of differant terms in differant contries
to me rod ends are the ones with built in balls at the end and used on the steering of cars
to u rose joints and rod ends may be the same
sorry
to me rod ends are the ones with built in balls at the end and used on the steering of cars
to u rose joints and rod ends may be the same
sorry
huseyinozsut
New member
- Messages
- 28
- Reaction score
- 1
Thank you for you responses. I'm redesigning the front end now. For a full suspensioned racing kart, what would be the ideal Kpi and camber? At least in a range? I love to corner at high speeds, so our aim is the best handling possible at high speeds.
In a site I read that there are 12 degrees of kpi in most of the racekarts. Is it ok for me? I won't be able to change kpi and caster. So I should set kpi an caster. Is there a way to calculate them? I couldn't find until now.
In a site I read that there are 12 degrees of kpi in most of the racekarts. Is it ok for me? I won't be able to change kpi and caster. So I should set kpi an caster. Is there a way to calculate them? I couldn't find until now.
- Status