[Kartbuilding] Go Kart
sburke at burkesys.com
Mon Apr 30 09:56:45 IST 2007
None of the karts I built had suspension. It would have been difficult to
implement suspension on the karts. I also found that when taking the kart
off-road, letting some air out of the tyres sufficed and provided a
reasonable ride, with the 3/4 air filled tyres taking some of the bumps
(at the cost of been a little slower off-road).
As for the estimated speed of the 125cc 4 speed manual 4stroke engine, I
would put it at ~50mph on-road. For off-road you would need a flat
straight with no bumps to get that speed. I would put an estimated
30-40mph for off-road on a hilly environment. The speed can be adjusted
by changing the size of the rear sprocket to suit the environment you are
on also. A large sprocket on the rear axle would be good for high torque
on off-road. A smaller sprocket on the rear axle would give better top
speed for on-road surfaces.
As for putting a turbo on the engine, I would definately leave this until
the kart is built and working. Putting a turbo on the engine can be
complicated and take some time. If this went wrong you would have no
engine for the kart. I suggest getting the kart going, test it and then
decide if you need/want to put the turbo onto it.
Best of Luck,
On Sat, 28 Apr 2007, reza tabanfar wrote:
> Hi Stephen,
> I am planing on building a go kart in a few weeks. For a fast
> go kart, which might go on bumpy roads occasionally, do i need
> suspension or will the chasis suffice? Also what do you think the max
> speed and acceleration would be with a 125cc 4 speed manual
> transmission, four stroke engine with about 13 hp and a total weight
> of (go kart) of about 140 kg. One last question, is it worth it to
> find a an old turbo to put on the engine?
> P.S. Your site is very informative.
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