Do you think you will satisfy all the requirements for the contest?
2016 - Arachnid
- Thread starter alexV
- Start date
- Status
I've spent two extended weekends working on the kart, managed to get 2 more people to help 
- engine, transmission, gas pedal, electrics, paint and orange spinning light are done
- to do: install brake line and fluid, steering column and steering rods
First some pictures
- engine, transmission, gas pedal, electrics, paint and orange spinning light are done
- to do: install brake line and fluid, steering column and steering rods
First some pictures
Attachments
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OjErOga.jpg -
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KCryOIN.jpg -
MEn9x9w.jpg -
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TQamC9M.jpg -
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JJLPgPI.jpg
Let's see if I remember how to post videos.
Edit: I'm behind the camera, the guy you see is the electronics expert
https://www.youtube.com/watch?v=sTV5RFMz9ds
Edit: I'm behind the camera, the guy you see is the electronics expert
https://www.youtube.com/watch?v=sTV5RFMz9ds
OzFab
New member
So, just the important things still to do? 
You have just over 2 weeks to finish...
You have just over 2 weeks to finish...
OzFab
New member
I would think brakes & steering are more important than piant; a nice paint job may get you an extra vote or two but, without brakes & steering, you're not even in the race...
I can see rear brakes in the last pic? Alexv, are they connected?
dwcopple
backyard hooligan
uh, you need a clutch...
He has a 2:1 reduction box with a wet clutch inside
Here is the clutch again. And it's quite heavy duty. It's layered: two clutch discs sandwitched between three friction discs makes for a total of six friction surfaces. With oil inside too, for cooling and durability.
I found a good thing about Honda original parts: there are manuals available online, with all the possible specs
For example, the idle rev of the engine is 1400 rpm. The clutch starts to engage at 1800 rpm. It's fully locked at 2100. Cool stuff.
Once the project is finished later this month I will post some of the challenges faced, what is truly awesome about the kart and what are the weak points.
I found a good thing about Honda original parts: there are manuals available online, with all the possible specs
For example, the idle rev of the engine is 1400 rpm. The clutch starts to engage at 1800 rpm. It's fully locked at 2100. Cool stuff.
Once the project is finished later this month I will post some of the challenges faced, what is truly awesome about the kart and what are the weak points.
Attachments
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iV4URNd.jpg
just the brake line is missing. brake disc, caliper, hidraulic pump and pedal are all fitted.
i also have the steering wheel (a great find from a local craigslist) but need a steering column. the tie rods need a bit of work to match the american steering rack with non-standard imperial units
OzFab
New member
Just a heads up, you now have a week to fiinish & qualify...
Lucky7
New member
Is that a plastic flywheel? BTW nice kart.
OzFab
New member
A stock Honda/clone flywheel is steel with a plastic fan attached...
Finished !!Attachments
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iCWOxUX.jpg -
u54p1LJ.jpg
Definitely have to take it to the back roads for a run. It's so awesome
Thank you fabroman and landuse for the advices. The 7.2:1 gear ratio is the sweet spot for this kart. My initial idea of 6:1 may not have moved the kart from a standstill on a slight slope.
A lot (A LOT) of research effort was spent for bump-steering. In practice if your wheels look parallel to each other and perpendicular to the ground then this is very good. Forget about how suspension travel changes the geometry for this kind of project
Yes, I need to use a proper throttle line instead of my improv, the break pump is leaking, the engine I suspect can run better, doesn't really matter now
The project was slightly under the budget of 6000 lei (~1500 USD) The most expensive part was the engine, sourced locally for 1300 lei (~300 USD) followed by the axle, clutch and steering rack, all imported. Fun fact: nuts&bolts cost me 150% of what I spent on the steel.
I will post another video when we go for a real test run. This is just for meeting deadline.
Cheers!
Alex
Thank you fabroman and landuse for the advices. The 7.2:1 gear ratio is the sweet spot for this kart. My initial idea of 6:1 may not have moved the kart from a standstill on a slight slope.
A lot (A LOT) of research effort was spent for bump-steering. In practice if your wheels look parallel to each other and perpendicular to the ground then this is very good. Forget about how suspension travel changes the geometry for this kind of project
Yes, I need to use a proper throttle line instead of my improv, the break pump is leaking, the engine I suspect can run better, doesn't really matter now
The project was slightly under the budget of 6000 lei (~1500 USD) The most expensive part was the engine, sourced locally for 1300 lei (~300 USD) followed by the axle, clutch and steering rack, all imported. Fun fact: nuts&bolts cost me 150% of what I spent on the steel.
I will post another video when we go for a real test run. This is just for meeting deadline.
Cheers!
Alex
OzFab
New member
AWESOME! Great work 
Fun fact: A vid of the kart moving under its own power, turning & stopping & the engine being shut down from the drivers seat will also help you qualify Even if it's just around your yard, try to get that up before or soon after the deadline
Fun fact: A vid of the kart moving under its own power, turning & stopping & the engine being shut down from the drivers seat will also help you qualify
Even if it's just around your yard, try to get that up before or soon after the deadline
Nice work Alex!! I really like this kart. So many people who start the arachnid never finish. It is one of the more difficult karts to make, and you did a great job in completing it.
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