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Posted

There has never been a Practical one.Milk Carts n Golf Trolleys are the nearest PRACTICAL things so far.

nonsense! On the inception they were as practical as their ICE counterparts.

Posted

There has never been a Practical one.Milk Carts n Golf Trolleys are the nearest PRACTICAL things so far.

Wot E said...

Sinclair thing could hardly be described as a car or practical

It has to be the little tiny one which is exempt from London's congestion tax and probably national road tax.

I would have to Google to find the name but that would be well..whistling.gif not in the spirit of the topic.

Posted

Racing karts also used split rims whistling.gif With an O-ring.

So did my Lambretta without O-ring.............smile.png

FYI With Karts the o-ring did not go between the halves, it sat in a groove created by joining the halves.

Posted

Racing karts also used split rims whistling.gif With an O-ring.

So did my Lambretta without O-ring.............smile.png

FYI With Karts the o-ring did not go between the halves, it sat in a groove created by joining the halves.

We just had inner tubes.........smile.png

Posted

There has never been a Practical one.Milk Carts n Golf Trolleys are the nearest PRACTICAL things so far.

Wot E said...

Sinclair thing could hardly be described as a car or practical

It has to be the little tiny one which is exempt from London's congestion tax and probably national road tax.

I would have to Google to find the name but that would be well..whistling.gif not in the spirit of the topic.

Sinclair was not the first "practical" electric car by any definition.

As it happens I've driven Sinclairs extensively, some fascinating design features, which have appeared subsequently on other unrelated vehicles....... but completely irrelevant to the question.

you might check out the first land speed record too....and some of the following ones....and the first vehicle to exceed 100kph.
Posted

Back in the 50's we had electric delivery vehicles, milk, bread etc. I can still remember when these delivery rides previously had a horse to pull it...whistling.gif

Posted

Back in the 50's we had electric delivery vehicles, milk, bread etc. I can still remember when these delivery rides previously had a horse to pull it...whistling.gif

way before then! although I'd say they qualify as "practical" vehicles. Don't forget trolleybuses too.

SAAB and Volvo both toyed with the idea of electro-turbine hybrids in the 90s I think it was. I believe Jag amongst others have resurrected the idea again.

Posted

One for the technical which I stumbled onto the other day whilst researching something for the another "bike" forum

Which production car has the fastest piston speed.

Posted

your right with Honda but wrong sort of vehicle....and include a couple of German mnfrs too.....

S2000

Posted

There was one in the seventies before the s2000,with a screamin bike engine, little boxy rag top.

S600

Posted

My Honda CB400/4 redlines at 12 or 14 k

My 1964 CB250 SS (yeh 50 years back) would valve bounce at 11000rpm, sure it would scream well past that with springs. smile.png

Posted

My Honda CB400/4 redlines at 12 or 14 k

out right RPM is only part of the calculation to determine piston speed though.

never suggested otherwise - talking about "revvy" Hondas.

(The piston speed at 10k rpm was 3281 fpm)

Posted

My Honda CB400/4 redlines at 12 or 14 k

..and has a piston speed of 16.8m/s compared with S2000 25.2 m/s

CBR 250R red lines at 19,000 and has a piston speed of 21.4.m/s about the same as MY NSR at 12,000.

Posted

My Honda CB400/4 redlines at 12 or 14 k

out right RPM is only part of the calculation to determine piston speed though.

An engine doesn't have to be a performance engine to have high piston speeds. A small bore and long stroke (Undersquare) are the main factors. As Spoony says, RPM is only part of the equation.

Can anybody tell me the motor with the fastest accelerating piston speed? You will probably be surprised I imagine.

Edit: Not racing motors

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