The Aim EVO5 Data Logger System

[rhyary]

Originally Posted by roastbeef

fair enough. can you at least show the brand you go with, method of execution, and compatibility or usability issues?

Do you mean the brand of the potentiometers?

AiM.

[rhyary]

Good News.
A new harness AiM sent me worked like a charm. I had to rig a test.
The GS screen updated it self for a new firmware and my page came up as expected.
The GPS also connected.
Car goes back to the shop Friday for reworking the install and adding pots.
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[rhyary]

Potentiometers arrived.
100mm front
075mm rear
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[maicol76]

Originally Posted by rhyary

Potentiometers arrived.
100mm front
075mm rear
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good~

After installing these, plz upload pictures in detail.

[rhyary]

EVO5 installed and working
GS Display good
GPS is good
Potentiometers installed and report data
Car is still at Autocouture so I can't take pictures yet
The first harness was the culprit, second harness sent had a minor issue on one pot cable but it was fixed.

The installation is a master piece and meets the car objective of been a stock looking interior as much as possible.

From @Dogbone thread, we can see benefits to data logging an HPDE sessions.

Only the next season will tell how truly is adding suspension travel into it.

I am sure cost questions will come up. Let's just say it cost less then the amount spent on tires and track days.

So from cost analysis perspective, if you do a TCO analysis, making each track day count more toward enjoying and progressing toward better driving thru data, the one can justify the cost.

Pictures will be coming but have this:
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The control shows:
on/off switch for evo5
Reset button for the Voltfreak battery
Female stereo for external microphone
USB port for direct connnect to EVO5
and the hub for GS Display and AiM camera

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[rhyary]

Quick Update,

The EVO5 is beautifully installed and now with off/on switch i can turn if on when ever I want, rather than on every time the car is on.

The potentiometers are a bit more complicated.

First the channel definition AiM told me to use was inverted. when the pot got longer, it shows less mm.

A call to Aim revealed that if set not to auto calibrate mode, there is a option to "reverse" the reading. But you can only do that when live connecting to the unit. Another words, the reverse option is on the EVO5 itself, not in the config file.

Another difficulty was one of the rear pots broke immediately after leaving the shop for unknown reason.

The car is back at the shop to sort out the final settings for the pots.

In the mean time, I am spending time learning the software by playing with it and watching learning videos on Youtube Aim Sports channel.

The more I am exposed to the system and the software, the more I get excited about the possibilities.

[rhyary]

Here is a simple screen i programmed to show the car suspension in mm.

I also created 4 math channels that calculate each corner to show 0 mm. That screen shows me the movement of the suspension from stationary position.

The picture shows the formula. The formula is not accurate because I reversed the direction of the Front Left Pot. The formula now should be "-34". but hopefully you get the idea.
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[rhyary]

Broken rear potentiometer.
I taped it with blue tape and it worked fine. So i doubt it was the mounting choices:
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[rhyary]

Regardless of the broken pot that was fixed with tape, the right side was not generating data. The Front left and Rear Left shows data as it should.

All of this is being sorted out at ACM this week and hopefully ready end of this week.
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[M3 Number 86]

That's pretty cool!

[M3 Number 86]

Originally Posted by rhyary

Camera mount found!
After getting frustrated with a location for the camera mount, that shows my hands and the track, a salvation found in my basement.

I was digging through a box of mounts from my Hang Gliding days (that was before I was engaged in the dangerous sport of HPDE) and found the perfect bracket.

The bracket used to mount the variometer. An instrument that tells you hight, and if you are going up or down. It turns out that once you fly
at a certain hight, a human lose the orientation of the G forces and you can't trust your feelings of which direction you are going. On the track it is an inconvenient. In aviation, it is critical.


It mounts to the passenger seat in ideal angle.
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could you let me know the brand of this or maybe a link to where you can buy this mount please?

[rhyary]

It has been so many years ago that I wouldn't know where to look. There is no brand on it, and it came with a variometer instrument.

[rhyary]

OMG, these are still around

http://www.flytec.com/brackets.html
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search google for
"hangliding variometer mounting bracket"

and you can see options

[rhyary]

Autocouture showing their skills.
Custom bracket version 3.
accomplishing two things.
mounting slide to equalize both sides
Near vertical orientation.
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[rhyary]

I got the car back from ACM and it is just incredible. I now have a production car with the ability of a race car like logging. I love it.

Now it is time to put the installation behind me and fully focus in the data.

So today I was driving around, looking at what my front and rear suspension is doing.

Pretty quickly it was looking that the front and rear are not in sync in terms of stiffnes

while the display was showing the rear is active reacting to road imperfections, the front was hardly moving.

I adjusted both front and rear to a softer settings and took a test drive

The rear was now moving a lot more and the front was more responsive.

Then adjusted the rear to stiffer, and left the front "softer"

Now the data was showing the rear moving less, and the front was still reacting

Another test drive and the car felt closer to what the data was showing.

Very happy with the system

continuing learning the AiM software and discovering more as I go along.

complicated but satisfying

[TZANIDO777]

http://www.rsport.us/Rsport_Damper_Pot_Bracket.html

You could use these to clamp directly to the damper so they are linear. Just need to work out the top mount with a simple L bracket off the top hat.

[rhyary]

Originally Posted by TZANIDO777

http://www.rsport.us/Rsport_Damper_Pot_Bracket.html

You could use these to clamp directly to the damper so they are linear. Just need to work out the top mount with a simple L bracket off the top hat.

Very nice find. thank you

[rhyary]

Looking for recommendations on what to put on the first screen. I think I can do 6 screens with few layouts to chose from.

[rhyary]

The Potentiometers project turns out to be a difficult challenge. Tom at ACM had to come up with few variations.

In the rear we finally have a solution using Paul's brackets and Tom's invention of a mounting bracket at the top of the shock.

Public thank you to @tzanid0777

This will be tested at Lime Rock but at least it survived the ride home.

Here is the current rear arrangements.
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[rhyary]

Here is what unhappy potentiometer looks like.
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[ajsmithvmi]

Ouch, did you bottom out?

[rhyary]

Originally Posted by ajsmithvmi

Ouch, did you bottom out?

underestimated the compression range