Had my first test run with the spanish Vespa (El Vespa) some days ago. It's got some immense power. No licence plates yet, so just tested in the neighborhood. Some pictures of it before it goes back into the basement for some final touches (20+ final touches ) hopefully it's back out in the sunshine within a few months.
Crimaz hydraulic brake converter inspection and installation. Rear disc brake working liek a charm btw. Also some initial trial fitting of controller in what I thought would be the back wall in the controller room
Control room the way I thought it was going to end up. Pictures will show that it certainly did not end up like that. That black little box was my first try on a cable-to-potmeter throttle.
Also a detail shot of battery main discharge wire, and testing of complete battery pack at my brothers job. The BMS blew one transistor at 100A (roughly 6kW). It was rated for 150A continuous, so this was my first warning sign that I couldn't trust this BMS. better one on its way as we speak.
Those transistors are rated at absolutely the most optimistic and assume you have massive heat sinks and fan cooling, I've had similar problems with amplifiers in the past.
I like the work that your doing on this. Any idea on the amount of weight you are saving.
the transistors on the new BMS will have better working conditions, located in a stream of fresh(er) air, mounted to an aluminium surface, and with heatsink designed into the module. No fans though.
There will be no weight savings I think. If you have an approximate weight of a complete smallie engine I will be happy to calculate though.
the hub motor is 15kgs and the battery pack is 10+ kg. Swingarm also adds a few hundred grams I suppose.
Oh and add BMS, contactor, DC-Dc converter. Potentially also a charger at around 1kg. I think all in all the scooter is heavier, but I reckon it has double the torque as my tuned 130cc Polini smallie has. I guess the way it will handle will take a small toll though.
I do like this project, a damned good idea mate quite a bit of work and many things to work out. 10 years from now all the petrol fuelled engines will be getting taken out and Will be replaced with electric kits, It would be interesting to see this on a dyno would the expert tell you what jets to use lol.
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