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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > Rev for Track Days



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      01-23-2009, 06:15 PM   #1
Bubbles
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Rev for Track Days

Finally, I'll know when my timing gets pulled. Chart from the Rev iphone app.

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      01-23-2009, 06:42 PM   #2
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what's the time step and duration along the abscissa? What explains the spikes? How does this relate to timing? Sorry, but I'm curious.
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      01-25-2009, 09:29 PM   #3
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Originally Posted by satakal View Post
what's the time step and duration along the abscissa? What explains the spikes? How does this relate to timing? Sorry, but I'm curious.

Every 5-6 tenths of a second. The spikes are throttle blimps I performed with boost. I shocked to see how quickly the temps increase. I wasn't testing the timing yet, just practicing some runs prior to getting the real data. I want to see how the temps impact the timing in real time.
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      01-25-2009, 10:24 PM   #4
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How much did the whole thing cost you? I've been thinking about getting it because it's more convenient then my laptop logger.
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      01-26-2009, 07:59 AM   #5
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Quote:
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How much did the whole thing cost you? I've been thinking about getting it because it's more convenient then my laptop logger.
$280 ($230 hardware, $50 software) assuming you already have the iPhone.
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      01-26-2009, 09:20 AM   #6
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How much did the whole thing cost you? I've been thinking about getting it because it's more convenient then my laptop logger.

Ocha, you'll have to update your iphone to 2.2 prior to using this software. Just keep that in mid.
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      01-26-2009, 09:29 AM   #7
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Where did you buy the hardware? I thought I saw yours had cables instead of blue tooth? Is the sampling rate adjustable (.5-.6th tenths is a little slow)

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Originally Posted by Bubbles View Post
Ocha, you'll have to update your iphone to 2.2 prior to using this software. Just keep that in mid.
That doesn't bother me(iphone broke have 3g now), $200+ bothers me. If it was 100 or less I totally would have jumped on it.

Then again it's probably the only logger you can take out on track safely and mount in a visible place on the dash.
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      01-26-2009, 09:37 AM   #8
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Quote:
Originally Posted by O-cha View Post
Where did you buy the hardware? I thought I saw yours had cables instead of blue tooth? Is the sampling rate adjustable (.5-.6th tenths is a little slow)



That doesn't bother me(iphone broke have 3g now), $200+ bothers me. If it was 100 or less I totally would have jumped on it.

Then again it's probably the only logger you can take out on track safely and mount in a visible place on the dash.

The cable plugs from the OBD port to the wireless transmitter. I agree about the price, but it's portable.

The developers are working on the timing, I've emailed a few suggestions that will be implemented on the new update. They want "car guys" to send in suggestions to improve the product. They are working on reducing the data log intervals now. I'll take a pic of my setup and post it in a bit. With your set up, $100 bucks compared to strapping your laptop in there.
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      01-26-2009, 12:17 PM   #9
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Can you log everything that the ECU has access to? stuff like the yaw rates from the traction control, throttle position, steering angle?
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      01-26-2009, 12:28 PM   #10
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Quote:
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Can you log everything that the ECU has access to? stuff like the yaw rates from the traction control, throttle position, steering angle?
OBDII specification sensors, basically things that pretty much every car has. In other words throttle probably, yaw probably not.
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      01-26-2009, 08:35 PM   #11
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Ugh, screw you Sal man, I just bought one.
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      01-26-2009, 08:51 PM   #12
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Ugh, screw you Sal man, I just bought one.


Don't fight it....you can't overcome the power of the Rev.
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      01-26-2009, 09:08 PM   #13
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Quote:
Originally Posted by Bubbles View Post
Don't fight it....you can't overcome the power of the Rev.
Yea but I know as soon as the hardware ships some asshole is going to post about how you can use this cable with this Wlan interface to make yourself a $50 hardware piece that works.

In fact I'm pretty sure If I plugged one of my usb or serial OBDII cables in to a Wlan converter it would work. But it's not worth it for me to bother really.





Oh BTW my stuff is on the car, you're going to get pulled so hard next Sebring you'll think you're in limp mode.
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      01-27-2009, 08:16 AM   #14
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Quote:
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Oh BTW my stuff is on the car, you're going to get pulled so hard next Sebring you'll think you're in limp mode.
I hope so, with my rolly-polly family car.
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      01-28-2009, 10:45 AM   #15
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Ahahahaha, nice sig change. BTW did you ever check out safe?
http://www.safemotorsports.com/schedule.htm

1st 30 min 1 run group 2nd 30 min another run group, then the next 5 hours of track time is totally open session.
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      01-28-2009, 09:54 PM   #16
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Quote:
Originally Posted by O-cha View Post
Ahahahaha, nice sig change. BTW did you ever check out safe?
http://www.safemotorsports.com/schedule.htm

1st 30 min 1 run group 2nd 30 min another run group, then the next 5 hours of track time is totally open session.

I did, but the dates are so far away.
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      02-01-2009, 03:05 PM   #17
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Bubbles,

So where and how are you mounting your iphone? Are you putting it in the arm rest?
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      02-02-2009, 06:36 AM   #18
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Bubbles,

So where and how are you mounting your iphone? Are you putting it in the arm rest?

I am using a proclip mount here with a tilt swivel mount here and use a power supply tap to the glovebox aux power (BMW adapter $10). It's a bit expensive but very high quality, clean and secure.
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