Posts

Monoposto Jan 2025 onwards

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 Jan 2025 - Battery management   Total loss system needs careful thought about energy storage during a race meeting and the necessary charging scenarios. The only approach is to estimate worst case. This system has three modes a) Monoposto running from 20AH Lithium M/C battery and expected duration b) Charging Monoposto battery from RV battery and c) Charging RV battery from the van starter battery during going home time.  Here is a table predicting the life of the M/C 20ah Lithium battery and RV battery (donor). AH = Amper Hours WH = Watt Hours. The table assumes the M/C battery is charged from the RV battery at some point in a two day weekend. a) Running from a M/C battery the table labeled LOAD shows 2 days running charging is expected after 10 runs from the RV battery. It is assumed 20 runs is a two day weeked and only loads the RV battery less than 50%. b) In the event of deciding to charge from the RV battery it must be done via a special charger that is designed fo...
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 Progress Jan 2024 till Jan 2025 Jan 6 2024 - Remote gear linkage (again)   The remote gear linkage with the Type 7 at remote end turned out to be too heavy so an alternative had to be found . More design and fabrication. Video link https://youtu.be/GN3WJG4qLAQ  Jan 8 2024 -  Oil pickup pipe, baffle and reinforcing block for securing head long bolts   This engine is pressure fed so it needs a pickup pipe that is immune to gravitational slosh on corners. This was designed in brass and soldered. The baffle is an aluminium plate. The extra securing blocks for the head can be seen on the bottom left.  Jan 24 2024 - 2CV clutch conversion progress More progress on the clutch conversion, most of this video is informative but please ignore the aluminium adapter (in red) as this turned out to be the dead end part of the design. There was no space for that part. See Terry Griffiths design (and his conversion notes). The main progress hear is the flywhee...
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Progress Jan 2023 - Jan 2024 Feb 2 2023 - Front suspension design The front suspension design was replicated in part from a Cooper design of the 1950's. After discussion with Paul we put our ideas together on CAD and exchanged comments (frequently). The upright assembly design generated the most discussion (about a month since the lsat video diary update). As it has  the most stressed out components.   Jigs made up for fabricating the front wishbones The upright design took at least a month with much too and frow design discussions. David at ??? machined the king pin supports out of EN24 solid bar.   Video link https://youtu.be/B4sd0vZ5A9c  Feb 11 2023 - Front suspension progress This complex piece of design required a design check by yacking the pieces to the frame and a quick geametery check.   Video link https://youtu.be/h3j1CcViWiM    Feb 15 2023 - Final tack welding and geometery check of front suspension Video link ...