Bill,

300-600 pounds could be easily done on a motorcycle. My bike weighs
in at about 250 pounds. The Killacycle is 625 pounds, and it's the
quickest electric motorcycle on the planet.
A junior dragster might fit that bill also.
Personally I like the motorcycle becasue you don't need extra
support tools like:
Large Tandem Trailer
Lift/Jack/Jackstands
Engine Hoist/Chain fall
Or as much space in your garage.

See what other guys are doing in the NEDRA records for an idea of
what it takes.

Darin
BadFishRacing

--- In NEDRA@yahoogroups.com, BllFs6@... wrote:
>
> Hi guys...
>
> New to this forum and have an interest in electric drag
racing...but of
> fairly short times and distances....which makes it much more
practical and safe
> and cheaper as well...
>
> Lets take a a pretty small vehicle...something along the lines of
300 to 600
> pounds..so thats something like a small bike or go kart like
vehicle with
> one person in it...
>
> Now, we want to accelerate as fast as we can with say a top speed
of 40 mph
> plus or minus 15 or so...
>
> Now. I can do the calculations for energy requirements etc etc but
what I
> really dont have a handle on is what is achievable with todays
technology at
> reasonable costs...
>
> So, I guess my 2 main questions are:
>
> 1 If you run an electric motor at really high power for only a
few
> seconds....and allow a long cool down time...or maybe even some
sort of active quench
> cooling...how many HP per pound can you get out of one?
>
> 2 The batteries...again a really short duration power burst as
above...how
> many amps/volts/watts per pound can you suck out em for such a
short time with
> a LONG pause between burst before you'll start to damage them
significantly?
>
> So, questions one and two really combine to answer the REAL
question which
> is how many HP per pound can you get out of a electric
motor/battery system
> for a few seconds? Also of interest would be how many HP per
DOLLAR for the
> same set up...
>
> Thanks in advance for any info
>
> BLLL
>