Comments on: In the Name of Science, Seven Thousand RPM

By: CharlieBrown

CharlieBrown — Sat, 08 Nov 2008 03:47:27 +0000

0% drivetrain loss?
MUAHHAHAHAAA :D
Peter, Peter…

Approximately 15 percent for stick-shift cars and 25 percent for automatics.

http://www.superstang.com/horsepower.htm

By: xtal

xtal — Thu, 21 Aug 2008 21:42:05 +0000

if you want exact values, get a PDA and an OBD2 interface:
http://www.qcontinuum.org/obdgauge/
(or with a tool like DigiMoto PDA, you can also read and erase OBD error codes.)

the OBD2 port in the E92 is in the legroom on the driver’s side, next to the engine hood release lever.

By: Peter Orosz

Peter Orosz — Mon, 18 Aug 2008 18:34:43 +0000

And to think that I used to be fairly competent in understanding basic science. Mein Gott!

On the other hand, Dynolicious has suddenly become the iPhone’s unique selling proposition.

By: tallian.miklos

tallian.miklos — Sat, 16 Aug 2008 15:56:06 +0000

“I’m not so sure how that factors in with g-loads.” – g, itself is the value of the acceleration of a free-falling body, 9.81 m/s^2. g-force or g-load is the measured acceleration expressed in g-s. So 9.81 m/s^2 is 1g, 19.62 m/s^2 is 2g, so on. Don’t know how good the iPhone’s measurement system is, but it should be capable of detecting high accelerations – a sudden move of the apparatus can cause tens of gs. I don’t think this is the weakness of the system. But try to measure the acceleration of something vibrating – an old washing mashine, for example, I suspect that iPhone won’t be to good at that…

By: immortalis.blog.hu

immortalis.blog.hu — Sat, 16 Aug 2008 12:47:41 +0000

Nice ride, but I’d prefer SL MB to Bimmers… Otherwise, i gotta checkout this iphone-thingy…

By: Peter Orosz

Peter Orosz — Thu, 14 Aug 2008 17:11:45 +0000

The application is really cool, do you need a jailbroken iPhone / Touch(?) to run it?

You can buy in the App Store for $10 and use it on any phone running 2.0 I guess.

I’m wondering how precise the measurements are, coming from the iPhone accelerometers. I don’t think they are meant to measure any high g’s, taking into account their original role. (eg. turning around the screen orientation)

I’d have to get in touch with some serious hardware geeks for that—all I know is the stats we measured were very believable. As far as I remember, the manufacturer claims to measure acceleration times down to 0.01 of a second. I’m not so sure how that factors in with g-loads.

By: g

Thu, 14 Aug 2008 11:01:08 +0000

The application is really cool, do you need a jailbroken iPhone / Touch(?) to run it?

I’m wondering how precise the measurements are, coming from the iPhone accelerometers. I don’t think they are meant to measure any high g’s, taking into account their original role. (eg. turning around the screen orientation)

By: omm

omm — Tue, 12 Aug 2008 09:56:53 +0000

Maybe you have right.
But I think, the atmosferic straight 3-3.5 litre straight six is The Engine.
It s linearity and metallic roarring in revs are in the top of 6 cylindre voice toplist among with the bubbling porsche boxer.

Oh, and if you want G’s, try the Nose. It’s very very horrible.