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Thread: Evaluating Aero effects

  1. 11-22-2019, 01:27 PM #1
    Brd.Prey
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    Evaluating Aero effects

    I was looking at some way to measure shock travel so I could evaluate wing angle and front chines etc. RacePAK at $1200ish was out of my range. I found sensors on eBay from an Australian auto sports company. I have looked at stuff on Alibaba before but never purchased it. I found sensors that were the same specs as the Australian pones for $23.00 each including express shipping!!! Here they are: I am going to use 1/2 coupling nuts to mount the rod ends on to the end of the shock mount bolts. Awesome huh. $94 for all 4 shocks I will be able to also compare chassis roll with and without a swaybar.

    shock sensor (2).jpg
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  3. 11-22-2019, 04:08 PM #2
    Hobby Racer
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    Very interested in doing something like this to evaluate aero loads. Can you post the details of where you got those linear sensors?
    MK3.1 Roadster completed 2011
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  4. 11-22-2019, 05:35 PM #3
    Brd.Prey
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    Search Alibaba for the below page.
    25A5B6BC-A6E5-45DA-98DD-E46C71D96D2B.jpg
    DD63E280-0A7C-41F7-89B4-E868B3D95F5F.png
    Let me know if I can be of anymore help?
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  5. 11-22-2019, 06:21 PM #4
    q4stix
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    If those work I may have to order a set for myself just because I'm curious how my suspension redesign will act. Are they just an analog voltage output vs. deflection?
    Gen 3 Type 65 Coupe builder
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  6. 11-22-2019, 07:10 PM #5
    Brd.Prey
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    Yes, DC in up to 48vdc and a variable output vdc as a result of its position.
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  7. 11-22-2019, 10:44 PM #6
    Bob_n_Cincy
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    About 10 years ago i need to do a data aquisition system monitor an EV during a driving cycle. It worked very well and was cheap. this would work great for moitoring 4 shocks.

    https://www.dataq.com/products/di-11...4aAt9GEALw_wcB
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  8. 11-22-2019, 11:38 PM #7
    Brd.Prey
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    I’m fortunate I’m running the Haltech ECU, with an I/O board I can monitor them with that and over lay g forces speed and gps data.
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  10. 11-23-2019, 10:08 AM #8
    lance corsi
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    Quote Originally Posted by Brd.Prey View Post
    I’m fortunate I’m running the Haltech ECU, with an I/O board I can monitor them with that and over lay g forces speed and gps data.
    Are you using the 1500 unit? I’m running that one myself. Lots of input options.
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  11. 11-23-2019, 06:21 PM #9
    Brd.Prey
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    Yes 1500 elite. Not hardly enough inputs, I am having to add a canbus A and B I/O box.
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  12. 11-28-2019, 08:05 PM #10
    DanielsDM
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    Quote Originally Posted by Brd.Prey View Post
    I was looking at some way to measure shock travel so I could evaluate wing angle and front chines etc. RacePAK at $1200ish was out of my range. I found sensors on eBay from an Australian auto sports company. I have looked at stuff on Alibaba before but never purchased it. I found sensors that were the same specs as the Australian pones for $23.00 each including express shipping!!! Here they are: I am going to use 1/2 coupling nuts to mount the rod ends on to the end of the shock mount bolts. Awesome huh. $94 for all 4 shocks I will be able to also compare chassis roll with and without a swaybar.

    shock sensor (2).jpg
    Awesome. Please let us know how they work out.
    818R Build date 10/31/15
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  13. 12-02-2019, 09:31 PM #11
    Brd.Prey
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    Will do
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  14. 05-04-2020, 09:40 AM #12
    Brd.Prey
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    Installation was easy. I am wiring them in to a I/O extender for the Haltech. I made up Deutch connectors for it all. Now get the car done and out on the track.
    RR sensor.jpg
    RR Sensor2.jpg
    LF Sensor2.jpg
    LF Sensor.jpg
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