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Rule Change Re: Data Collection 
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This new rule applies to most PCA classes in 2016 including sp1, 2 and 3?


General Compliance
Data collection:
-Cars, other than in the GT1-6 and GTP classes, must have provisions for the use of PCA compliance testing data systems on the track and at tech.
1) Cars which came from Porsche with OBD data ports must retain that port in an easily accessible (preferably stock) location and with all its wiring intact (i.e., don't cut any of these wires in order to attach data or other systems).
2) Cars whose model year is 2001 or earlier must have a lead from the tachometer signal input terminal, terminated with a standard ~0.176" insulated female bullet connector, located in a conveniently accessible area below the dash on the passenger side. The connector must have enough slack to be conveniently used and to reach the right side roll cage front hoop upright, but may be lashed up out of the way with a Velcro or Gear Tie or some other easily fastened/unfastened tie (no zip ties, as they have to be cut).
3) All cars must have a source of 12 volt power, accessible as the tachometer lead described above, so that the compliance data systems can be plugged in and operate off of it. Cars must have installed a two wire/pole standard flat trailer type connector (the kind with one protruding male bullet connector, and one insulated female bullet connector). The insulated female connector shall provide the 12V current using the red wire and be protected with a 7.5 ampere fuse, and the other wire shall be attached to a chassis ground. This power lead must be connected to an "always on" circuit in the car - that is, one which is only not powered when the kill switch is turned off, or the battery disconnected.

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As this change indicates, PCA plans to do more with data collection to ensure the cars are legal. AIM can produce a horsepower rating. That can be compared with a scatter diagram which illustrates the envelope of performance for complying cars, and outliers will show up. At a minimum this singles out cars for further checking. Gears checks with AIm may also be in the offing down the road.

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Dave Derecola
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Wed Nov 18, 2015 8:28 pm
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If anyone has a question on the data collection and tach wire requirement, shoot Brent Knoll, PCA scrut, an email or give a call and he can help you through it.

Brent
615.969.8212
brent.knoll@gmail.com

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Dave Derecola
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Mon Dec 21, 2015 11:15 am
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The requirements have changed a little from the email blast you received in November, so please take a look at the official requirements.
PCA will be converting the data collection unit to run from the race car's auxiliary power and eliminate the battery currently used with the unit.

Beginning in 2016, 944 race cars will be required to supply a fused (7.5A) power lead in the passenger side footwell with enough wire to run along the passenger side impact bar to the main hoop. PCA recommend using a Geartie or similar to coil and attach the wire to the side impact bar for use/reuse. Please do not wire tie the coil/plug as the scrutineers will not have equipment to cut a wire tie and replace it.

Originally this was going to be a 2 pole flat wire plug but, after the email blast, some racers responded with a suggestion using a standard 4 pole trailer plug. This will allow us to put power (brown wire) and ground (white wire) on the bottom two wires and the tach input on the top (green) wire. Yellow is not used. This plug is available at most automotive stores, \Talmart or online with Amazon or others.


Attachments:
4 prong plug.jpg
4 prong plug.jpg [ 8.55 KiB | Viewed 8203 times ]

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Tue Dec 29, 2015 10:02 am
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I assume the picture will be the half attached to the PCA unit with the car getting the other half? This will keep the hot lead protected by the plastic plug and only the ground (white) tip will be exposed? Please verify.


Tue Dec 29, 2015 11:40 am
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ramagar3 wrote:
I assume the picture will be the half attached to the PCA unit with the car getting the other half? This will keep the hot lead protected by the plastic plug and only the ground (white) tip will be exposed? Please verify.


Correct

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Tue Dec 29, 2015 12:35 pm
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You are correct, that is the PCA side of the connector. Attached are the in car wiring requirements from PCA.


Attachments:
Connector.jpg
Connector.jpg [ 158.39 KiB | Viewed 8203 times ]
Tue Dec 29, 2015 12:42 pm
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Could someone provide details on how you wired the data port? Where did you tie into the tach signal, etc.

Thanks.


Fri Feb 24, 2017 1:55 pm
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Ned,

Sent you a PM

John


Sun Feb 26, 2017 9:47 am
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