Battery Vehicle Society

Automatics can be done, but you either have to keep the torque converter and idle the motor to maintain hydraulic pressure, or run an external oil pump and pressure accumulator. Most automatic gearboxes are pretty much as efficient as a manual, it's the torque converter that's lossy. CVTs are fricti...

I just spent over an hour on the phone with Azhar Hussain, the man behind the TTXGP project. A few quick snippets; An ACU National licence is likely to be required. They are trying to arrange special transport to get teams to the IOM, so that they don't have to book in advance (like right NOW!). Thi...

I doubt that traction and ultimate road holding will be an issue, so there may well be some benefit in going for narrow tyres, to reduce rolling resistance and also reduce the rotational mass of the wheels (which will save power when accelerating). Narrow tyres will probably not be available in hig...

This caught my eye at the bike show last year. http://www.megelli.com Their 125r was a fabulous looking machine and quite light at 110Kg I spoke to their sales guy and he was quite interested in the idea of doing an electric version, but at the time they were bust just getting the 's' model into pro...

From what I can remember, the situation for motorcycles at least is that non 'E' marked bulbs are legal for pre 1983 machines. Many cars and bike do have OEM LED lighting these days, but they're 'approved assemblies'. In reality the use of LED replacement bulbs is unlikely to be a problem as long as...

PHEV, your original statement was I reckon my Aprilia could make it at 50mph average as it stands... and your signature says Aprilia RS motorcycle, 500A controller, Cedric's AgniMotor, LifeBatt batteries for 40 miles and 80mph top speed. 140kg On that basis I dissagreed with you, 40 miles street doe...

I reckon my Aprilia could make it at 50mph average as it stands Slightly different from. As I said, I will be testing to find out, and I did intend to have a larger pack.. Larger pack? My point was only that you could MAKE IT ROUND THE CIRCUIT with a bike the size of the aprilia...not that it would...

I wonder if The Killacycle will make a show Bill is an old friend of mine from the days of EV circuit racing at the Firebird track, South of Phoenix. He was one of the founder members of NEDRA (National Electric Drag Racing Association). http://www.killacycle.com Nigel, do you have any concept of t...

I'm sorry, but I think you're significantly underestimating the difference between ordinary riding on public roads and riding fast on a closed circuit. Driving my Scirocco EV around the Anglsea circuit and averaging 50mph took over three times the energy per mile as my 70mph commute down the motorwa...

If we assume you can do 60mph on 5Kw (probably optimistic) then it would take 5Kw times 60mph divided by 38 miles = 3.1Kwh. That's a constant speed calculation. No acceleration. No hillicliming. As I recall, you've got 40Ah at 72 volt = 2.9 Kwh It's going to take a very big battery pack, but you've ...