other Acceleratorometer

['76mintgrün'02]

Well, I made something to try and gauge acceleration, using a couple of bamboo skewers, connected by a Bic lighter spring and a stainless strip from a wiper blade.

 

 

 

It hangs from the visor clip and swings back with acceleration.

  

  

 

It is easy to peg it from a stop, but works well with this range of motion once the car is moving.

Rolling along at 2k rpm and flooring it moves it almost to the stop in second and not as far in third.

I need to add some reference numbers to it, so I can say "I hit thirty!"... or some such thing.
 

Silly?  My girlfriend sure thinks so.

I think it is sort of fun.

 

Tom

Edited April 8, 2016 by '76Mintgrun'02

[Healey3000]

How about a pair of fuzzy dice?  Play with the throttle till you get them going like Newton's Pendulum.

[adawil2002]

Thought there was an app for that.

['76mintgrün'02]

A fuzzy dice app?

 

What will they think of next??

['76mintgrün'02]

Degrees added

[ray_]

I have a fairly ancient version of this http://www.gtechpro.com/ss_fanatic.html

 

And, as Andrew noted, I think there's an iPhone app for that.

 

...But what's the fun in that?

 

Can you hook yours to some audio output of some sort? ;-)

 

Cheers,

['76mintgrün'02]

I had not thought of audio, but I was thinking lights might be nice.

Simple is amusing enough.  No wires.  Never needs winding...

 

I just took another drive with the new calibrations and tested it in second and third, at 2k rpm.

In second, that happens around 20 mph and the meter reaches 15 degrees, then tapers back.

In third, it is going 30 and the meter only reaches ten degrees.

When you first punch it, It will jump past those numbers by a couple degrees.  

That jump may be worth noting.

 

I am definitely going to have to plot the curves,

RPM vs Accelerometer Degrees in each gear.

 

I had Luna the dog with me on the last test run and she starts getting nervous at around six degrees, so the next test run will be done alone.

 

Those phone apps are definitely cool, but hard to use while texting/driving.

 

 

[TobyB]

I went looking for the fuzzy dice app...

 

t

[rapandi]

32 minutes ago, TobyB said:

I went looking for the fuzzy dice app...

 

t

Bahahaha.... 

[JohnH]

Good stuff, you should poke around Autospeed. Julian Edgar's been doing this kind of thing for years.

 

http://www.autospeed.com.au/cms/A_113237/article.html

 

[zinz]

Master Tinker strikes again!

 

Here's how I tell if I'm accelerating too fast...

 

 

Ed Z

Edited April 8, 2016 by zinz
pic didn't paste

[jimk]

Ed,

I'd say your car is tuned good enough!

[dpowell]

Even when there's just nothing left to fix, a tinkerer will still tinker.

My girlfriend recently asked me when I might be finished working on my '02. Finished? I told her I don't understand the question.

[burndog]

Can you create a G-Force measurement / scale? Now that would be fun!

[bruno615]

7 minutes ago, burndog said:

Can you create a G-Force measurement / scale? Now that would be fun!

 

You can, but the calculation for a bent solid rod isn't trivial.  It is much easier for a mass on a string and dead easy if you use the level gauge that the Autospeed guy does.