pocketDYNO?


zeff

zeff

Member
Joined
Jun 8, 2009
Messages
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guys..any one of you here have tried this app for the itouch or iphone?

is it reliable?(%?)

pocketdyno does it really works?

coz if it works ill be willing to give it a try since we dont have any DYNO's here in our place..
 
I will download it now and have a play.

Will let you know what I think of it and how accurate I think it is.
 
i havent tried it yet tho..5-0's are lurking due to the upcoming elections here check points here and there. decibel like for sound meter? how would it work?
 
how could an application on a phone tell you how much power you're running?

hahahahahahahahahahahaha.
 
i believe it has something to do with the iphone's or itouch's accelerometer...even its clearly not accurate..its worth a try for the fun of it.
 
ecksjay said:
how could an application on a phone tell you how much power you're running?

hahahahahahahahahahahaha.
Click to expand...

A G-Tech works in the same way. And that is proven to be pretty accurate. It's pretty simple: an accelerometer simple calculates how fast you're going by measuring the g-force created by accelerating. Lot's of telephones have accelerometers these days. The G-Tech is proven to be pretty accurate, the question is how accurate the accelerometer in the phone is. If it's accurate enough, then it shouldn't be a problem. If you also put in the weight of your car, the device can calculate through an algorithm, with the acceleration forces combined with the weight, how much peak power you have. Still, it is not specified on which RPM. And to get the most reliable results, you need a straight road and a pretty good estimate or the real precise weight of your car.

That's where the G-Tech comes in that I have, which also measures your rpm and outputs complete graphs :p

Boozer_Matt said:
It's not that good.

Best I got was 118bhp. LOL
Click to expand...
118bhp is not a weird result mate. Remember that it's not measuring you wheel power, but wheel power with added wind resistance since you're really moving. Roughly 30-35 percent of the power to the flywheel is lost through drivetrain losses and wind resistance. When you take that into calculation and that most EK9's rather have 175bhp left instead of 185, it's not so weird: 175 x 0,65 = 114hp, 175 x 0,7 = 122hp.

These tools are nice for an estimate of what you have, but most of all to compare. To compare different cars, to compare what a modification has done for your car.
 
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thanks for backing up _JT

G-tech is a nice gadget
 
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ecksjay said:
how could an application on a phone tell you how much power you're running?

hahahahahahahahahahahaha.
Click to expand...

oh dear, you may want to think twice before you start laughing so hard... As pointed out already the gtec does a similar thing and has been proven accurate to 1/10th of a second in 1/4 readings and within 10whp for power figures by myself personally and i didn't even set mine up 100% properly.
 
so i finally have gave it a try its an app called dynolicious it has it reviews in google

so it says:

1/8 mi 9.66sec@128.0 km/h

1/4 mi 14.57@159.2 km/h

the other miscellaneous are:

max speed 160.2 km/h
max acceleration 0.55 G's
peah HP 58HP

here is the graph it showed:
$IMG_0003.JPG

what do you guys think?:p
 
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