0-100cm car speed test

my car would probably spin out before it gets past that far. Man i need some new tires. I havent tested mine but im sure i would do just about as much as you, or a bit slower, i dont know. I will go and see.

49 MHz Honda S2000
2 Clone Mazda RX7’s
Lots of spare stuff…

Is this metre measured from a moving start? Or is it from stop to go? The times will vary wildly given the differnces in the two.

It would be good to do this measurement along with what gear ratios you’re using. If this would be done for all stock bits / motors we could compile it into a table and for once have a good quick and accurate way to rate clone motors! 🙂

ph2t.

sounds like a good idea ph2t, i think we should do a standing still start, that would make it more accurate because of some cars cant go as straight as others and so on…

49 MHz Honda S2000
2 Clone Mazda RX7’s
Lots of spare stuff…

It would be good to be able to time it more acurately.

There was a link somewhere that was for a realy simple circuit that could be hooked up to a PC via the parallel port and used some basic DOS software to do timing measurement.

It used a couple of photo transistors and a Laser pointer for the beam, broken by the car.

I think it was originally designed for slot cars.

I’ll have a browse and see if I can find it again, because it would be ideal for doing what you guys are talkin about.

Actually, I might even make one for myself!!

8ch Ess Vee
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Turkey Hill Raceway http://community.webshots.com/album/64812360tweTQI
Compact Char-G, White R34 GTR 27mHz
2 x Nano Racer Clones
Micro Super Charger, Black WRX 27mHz

not only does running start affect time the surface your racing on will have an affect also… does any body else own some digi-scales that are sensitive to a tenth of a gram?

shells can vary by up to a gram streight out of the box, so keep this in mind too.:smiley2:

Great idea guys. Anyone else have a lap counter (or 2:). The counters could be set up at the metre and there is a count down type function on it that tells you when to go. All you have to do is drive. This would be a great application for it:).

I would suggest a stationary start, that way it is standard, don’t have to worry about run up distance and speed. You will also have to look at tyres a bit closer too.

Count me in. I would also suggest posting as much info on the car set-up as possible, to keep things honest:smiley2:

Sorry one more thing, I would suggest posting your surface as well, ie tile, wood, painted, carpet. If anyone wants to get picky, they can submit pics of car and surface as well.

Impreza :smiley16:

I have a twin cell bit that can out run my running treadmill at 20Km/h.:shock::D Yes 20…just before it burnt out its 3.8..:sad: And it doesnt flip over when you put it into corners. Hard to tell why its my favourite.:)
As far as timing goes, the Bit Racer lap timers are EXCELLENT for drag times, best lap times, and timed races. An absolute must for anyone who wants to do accurate timing of BGC speeds. Or speeds of any R/C car or even slot cars for that matter.
:)uA