My Sidewinder off-road buggy build *VIDEO ADDED*

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zeusrekning:

--- Quote from: bogstandard on December 26, 2008, 04:31:14 AM ---
--- Quote ---I used to pick up the odd stolen/recovery vehicle to resell
--- End quote ---

Ahha! A used car saleman. You don't have a law degree as well?

Now I know where all the slick talk comes from. ::) ::)

Bogs

--- End quote ---

:lol: I love it.

zeusrekning:
Andrew, where you at man??? I talked with BrassMachine the other day and he recommened the GS500 engine for a few different reasons. Any chance you will be done with in the next couple months? :) If so make sure to let us know what you think. So far is there anything different you would do? I wondered if you could have cut the upper frame tube that the shifter linkage mounts to? Right above the engine head and shift the engine towards center anymore? I am not a little fella so I dont think the unbalanced weight would be as much of a factor but Ever inch over would help. Thanks
Tim

jones:
Hey zeusrekning,

I think the GS500 engine is a great engine for this buggy, but it is VERY wide. The buggy should be finished by the 1st of february. I've been working 9 hour days just on the buggy and I might have a friend come and help in a few days.

I had originally planned to cut the upper frame as you describe, but it is very lucky that I didn't. The seat I got only JUST fits in between the top frame rails. If I had moved the engine in a bit in wouldn't fit.
Also, the engine is air cooled so it gets very, very hot. I didn't want to have it too close to me during driving. Also going to put an aluminium heat shield between me and the engine.
Another reason not to do that is that at the bottom of the engine there is a large cylindrical protrusion in line with the crankshaft (maybe for the ignition, clutch or bearings I'm not sure). This part of the engine is already inside the frame. I will get a picture for you right now.

Cheers,
Andrew

jones:
OK, here's an update.

Finished modifying the steering rack. Instead of tacking a bush on one end, I decided to machine a press fit bushing on the lathe to press into the rack. I might have to bore it out a bit more, but at the moment it works perfectly.

Rear bearing plates arrived from Edge, so now the rear swingarm is 100% complete except paint

520 50 tooth sprocket from a motorcycle shop in Brookvale was $40 new. The guy went through all the 520 50 tooth sprockets to find me the cheapest, AND then he gave me a discount! I think it looks pretty good. The place was called APW motorcycles.

Picked up a seat on ebay. A friend and I bought the pair for $140, and I got the more faded one because I need the reclining lever on the left. It won't fit on the right because of the engine.

Mounted the oil cooler at the back of the buggy. If I was to do it again I would save some money by using rigid steel pipes, rather than the expensive oil cooler pipes.

Removed the rear brake assembly from the bike

Made the suspension pivot pins. The rear one is a bit longer than stock because I made the pivot wider.
Instead of threading the end of the pins I decided to use cotter/split pins through the end of the bars. I also bored out the nuts to weld them on the pins, rather than threading them on.

Seat rails without the holes drilled in them

One of the wing supports done. It was easier to cut the correct angles than I expected

Also, I fitted the front suspension mounts. I had to tack and grind off the top suspension mount like 10 times to get it in the right spot and square to everything. Magnets helped hold it in place but made the arc (during welding) go a little bit strange

I hope to have the buggy done by the 1st of feb. It will be close, but I think I can make it, especially if my friend comes over to help.

Andrew

SPiN Racing:
Looking great! Im watching closely, as the ZX-9 is going to go along a similar route to that.. but likely 3 wheels.. so I can keep it licensed as a Motorcycle...

Unless I get a wild hair after cleaning out garage space.. and make a small dar like the DP1 or something.

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