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Pieterholtz
09-23-2014, 07:05 PM
I acquired a build Badlands Sabretooth last year.

Had loads of fun thrashing at our local airport on Sunday afternoons. There is a decent Jeep trail with some medium to fast sections.
As with all my toys, I always attempt to "improve" an already build & designed unit.
After some modifications to the suspension, air intake system & took the buggy for a quick "Test Drive"....

Well, the test turned out to be one of the ultimate test....the Roll Test...
See the Video here:
750cc Suzuki Powered buggy rolling spectacularly! - YouTube (http://youtu.be/cexuUg5KXLY)

After assessing the damage done, it was time for some major modifications.

The fundamental flaw in the Sabretooth design is the lack in stability, so first on the list of modifications was to lower the center of gravity.
Lowering the seat
Removing the fuel tank from the highest point on the chassis to behind the seat..
Widening the entire unit by fabricating bolt-on extensions for the A-arms
Lowering the ground clearance and softening up the suspension..

See video of the modifications done:
Sabretooth walkaround - YouTube (http://youtu.be/_QO4VRj6swU)

Still some minor issues with the fuel supply, pumping to an intermediate tank, with return to tank, feeding the carbs via a inline filter which I think restricts the supply...need to work on that this weekend.

Hambam
09-24-2014, 02:01 AM
Glad your ok. Do you know what happened? looks like you caught a rock or blew a bead when the back end came out?

K-fab
09-24-2014, 01:20 PM
Oops!
Welcome to the "Sky, ground, sky, ground, sky, ground Club"!
Good to see you walk away. As you stated, working safety gear is good stuff.
Welcome to MBN also.

Pieterholtz
09-25-2014, 02:00 PM
@HAMBAM,I had the suspension set too hard & had road tires on the buggy. With the previous gearing, the motor would "kick" round 4700rpm, so lost traction, changed gears during the process....hit a rock and..***sky***ground***sky***ground...thud!!

Thanks for the welcome guy's!

LIDUNO
09-25-2014, 04:37 PM
Currently my odyssey only has the lap belt. I will be getting a full harness..lol
Glad you didn't get hurt.

Pieterholtz
09-26-2014, 10:13 AM
LIDUNO, this was my second major flip in a buggy, the first was a kart that i build with a 9hp Honda engine...As all fun goes, pushed the limits to far...
Luckily i had a 4 point harness, smacked my head properly but walked away from the crash!

Today I am such a fan of roll-cages & harnesses!!

LIDUNO
09-26-2014, 03:33 PM
I never liked the harness in my fl250 because I liked to lean forward a little to soak up the bumps. The fl 350 has rear suspension so there really is no reason for me not to strap in completely.

Pieterholtz
09-28-2014, 09:46 AM
A short video of the first ride after all the modifications..

750cc Sabretooth buggy....It rides again - YouTube (http://youtu.be/9v6ck-tHGlg?list=UUvt_2Of4tpOp5_mjy1tXCkA)

LIDUNO
09-28-2014, 02:37 PM
Looks good.

Pieterholtz
10-13-2014, 07:46 PM
Some more videos uploaded to my channel on you tube.
Sorted out the fuel issue, now it goes like a bastard.
Thrashing 750cc buggy - YouTube (http://youtu.be/TaNvW2H4BWY?list=UUvt_2Of4tpOp5_mjy1tXCkA)

On board Cam 750cc buggy - YouTube (http://youtu.be/MT97kxprmiA?list=UUvt_2Of4tpOp5_mjy1tXCkA)

Rat4020
10-13-2014, 08:14 PM
Nice job on the R&R :D

FJ1200Buggy
10-15-2014, 05:01 AM
Hi, nice buggy you got there.
How wide is your buggy now?

Pieterholtz
10-16-2014, 05:20 AM
1980mm or 78inches

After rolling the buggy, I manufactured adapter plates that just bolt onto the frame.
The additional width made a huge difference to the stability.
It was the easiest and quickest way of doing it.

The frames were laser cut and just bolts strait onto the existing mounting of the A-arms.
If you need the CAD files, contact me i could mail them to you.
andrecht@vert.co.zed-a
[smilie=thumbs_up.g:

Pieterholtz
10-16-2014, 05:20 AM
@rat4020.....Needed!![smilie=thumbs_up.g:

FJ1200Buggy
10-16-2014, 10:12 AM
Thanks For the offer Peter, but if I make it wider I will have to make my trailer wider. Maybe one day if I roll it :D
Have you considered doing the "Quads for quads (http://www.familyadventures.co.za/index.php?option=com_content&view=article&id=56&Itemid=227)" with it?
I did (or tried to do) it twice with mine when it had the Mini 1275 motor in, its an awesome experience.
Which airport is that where you took those videos?
O.R Tambo?

Pieterholtz
10-16-2014, 12:39 PM
Rand airport in Germiston...
There is a 8kmē run-off with some fast-medium tracks.
Its down the road from my house, convenient for testing and a quick ride.
Thrashing is great every now & then, but ideally i would I would love to do longer & technical trails. One of my aims during the modifications was to make the buggy as reliable as possible.:D
Had a look at your footage of the Quads for quads, looks like so much fun.
The other issue i have is I have no idea what my fuel consumption is. My new tank only takes 15 liters of fuel... bit of a oversight on my side...
Thanks for the link of the Quads for quads story....

Pieterholtz
11-13-2014, 04:44 AM
Down the road from my house is a 4X4 training center with a small motocross track....
As the devil has it, we could not resist taking the buggy for a quick workout...
Well, surprised is not the emotion that I was expecting..
Loads of torque, lack of weight and ground clearance apparently is what is missing on regular off road vehicles.
Video can be seen here:

750cc Buggy doing 4X4 Obstacle Course - YouTube (http://youtu.be/kuU7K3W_a6c)

Obviously we had to take the buggy on the motocross track....
Well, clearly the jumps are a bit short...[smilie=ecstatic.gi:

Video can be seen here:

Motocross Track Jump with 750cc Buggy - YouTube (http://youtu.be/XZvyTfVJSGk)

K-fab
11-13-2014, 07:52 AM
Great stuff Pieter!

Can you lessen the preload on the shocks at all? The suspension is barely moving and softer springs would make it work even better.

Pieterholtz
11-13-2014, 10:34 AM
K-fab, I have to agree, the lack of adjustment does make for a bumpy ride..
I intend to fabricate some ajustable coilovers in the new year, or see if I can get my hands on a set of Monroe Air Max...

K-fab
11-13-2014, 12:46 PM
Good plan - it will make your beast come alive if you can get the spring rates corrected.

Pieterholtz
11-14-2014, 08:35 AM
[smilie=thumbs_up.g: