III II I I AMG

ive searched over and over on the forums and cannot find that thread nomore about this one application you can download for the iphone to dyno and do 1.4 mile runs..... someone help....

baldmike73

its called dynolicious

Vic55

Try this:

Dynolicious

NSX2NV

Just go to the apps store and search dyno. I have dynolicious that cost $12.99 I think. They have other ones but I don't think they are as good. Also with Dynolicious you can save multiple cars on there and it saves all your runs. It even graphs out progress. Also you can make notes on it when you add a new mod so you know what you did for that particular run. Hope this helps and Happy Racing!

III II I I AMG

does it actually work well?

t-bone

I think there's also a free one called PocketDyno.

Improviz

Seems to me that I read in Car & Driver that they'd gotten very consistent readings which were 0.3 slow with the device (i.e., if it says you ran a 4.3, you ran a 4.0), provided that a) you calibrated it very, very carefully (i.e., use a level or something with an L-shaped surface and a level to make sure it's perfectly vertical when you calibrate it), and b) make sure it is held in a location during your run so that it does not move. If you kind of wedge it down in a cup holder with the top of the phone facing towards the front of the car, it seems to hold pretty well.

hbr

I saw simething on SPEED where they compared it to a Gtech and Dynolicious was much closer to the real time .1 off I think.............

NSX2NV

Honestly I haven't used it that much but the times I have it seems to work great. For $12.99 you really can't go wrong. It's worth that just to be able to say you have a dyno/timer in your pocket

Improviz

Correction: I jumbled this of: it is best if you wedge it down in the cup holder with the top of the phone facing towards the *rear* of the car (the "|/| represents the cupholder with the iPhone wedged in):

front of car <- |/| -> rear of car

If you wedge it in there very carefully, it does a pretty good job, but you may have to stick something in there to hold it steady if you don't have one of those little rubber iPhone protectors (condoms, I call 'em) to keep it from slip-sliding around: if it moves at all in that holder, results will be waaaay off.

I did four back to back runs with cooldowns last night on the same stretch of road, and all four 1/4 mile runs were within 0.15 seconds and 1 mph of each other. 60' times also seemed pretty realistic (i.e., *****ty) given that it was in the 50's on concrete with traction control on.

Btw, this was using the freebie version of Pocket Dyno, which now does 1/4 mile runs in addition to 0-60 (which was all it did before).

Main thing is to take care to calibrate it very very carefully (NOT in the haphazard manner in which the guy in this video review of Dynolicious did it): you need to find a flat surface with a vertical "L" shape so that you've got it level both horizontally and vertically when you cal it, and then make sure that the temperature in the vehicle (the phone, mainly) is about the same as it was when you calibrated it.

Doing this gave the consistent results above. First time I calibrated it was in the car, in a manner more in line with the vid (although I did use the console rather than waving it around in the air ), and results were far less consistent. And hey, it's free! Just search for Pocket Dyno (or "speed" to see all of them) on the iPhone aps page.

dpavid

just installed on my iphone. will try soon after i calibrate on a perfect level surface.