Performance measuring on the cheap

**Whubbsie** · 30-07-2008, 12:10 PM

Here's one for any Iphone owners

http://www.autoblog.com/2008/07/29/d...ormance-meter/

One app that has us really psyched is a new automotive performance meter called Dynolicious from BunsenTech. It uses the accelerometer inside the iPhone to let you record 0-10 through 0-100 times, quarter mile and trap speed, Lateral Gs, horsepower and more. Results are also displayed in real-time on the phone itself with graphs and a speedometer

okay not so cheap if you don't have an Iphone

**Timbo** · 30-07-2008, 12:54 PM

Accelerometer based tools, such as G-tech, are a bit hit and miss. If this also hooks into GPS, it might be a bit more accurate. As an unapologetic gadget freak

I'll probably get this, and report on results

**JustCruisn** · 30-07-2008, 01:32 PM

Go for it Timbo
Take it on a real drag strip and post back the different times + speed.
Accurate to 1.5 mph

**Whubbsie** · 30-07-2008, 02:16 PM

Even if it's not that accurate it would still be a good way to test out ball park improvements from mods, till you can get some real tests done wouldn't it?

**Sharkie** · 30-07-2008, 03:48 PM

I've seen reports from dragstrip tests against the G-Tech Pro with only thousands of a seconds difference. Its pretty good.

Who cares if it is 0.003s out over 400m

**RhysQ** · 30-07-2008, 03:57 PM

Originally Posted by Sharkie

I've seen reports from dragstrip tests against the G-Tech Pro with only thousands of a seconds difference. Its pretty good.

Who cares if it is 0.003s out over 400m

it could be the difference between a 13.997 sec pass and a 14sec pass

**Timbo** · 30-07-2008, 04:34 PM

Originally Posted by Sharkie

I've seen reports from dragstrip tests against the G-Tech Pro with only thousands of a seconds difference.

In my experience, even when you set it up with painstaking care, the G-Tech Pro is not consistent, ie, against a set of time slips. You're right, on some runs it might be 0.03s out, but on the next it might be 0.3s out

**JustCruisn** · 31-07-2008, 09:55 AM

For 15bux it would be worth it for the fun factor, thats about it.
I rekon you could have a comp with your mates to get the biggest G reading around a corner.

**RhysQ** · 31-07-2008, 10:04 AM

Originally Posted by JustCruisn

For 15bux it would be worth it for the fun factor, thats about it.
I rekon you could have a comp with your mates to get the biggest G reading around a corner.

my head unit in my car (Kenwood XXV-01D 25th Anniversary Edition) has a g-force meter in it...works a treat. good fun from the lights and on the twisties watching the little ball on the LCD display getting thrown around.