Separation distance LI

Discussion in 'Laser Interceptor' started by Holla, Jul 27, 2017.

  1. Holla

    Holla Premium Member Advanced User Premium Member

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    Just picked me up a nice set of BWM style LI's and was curious as to whats the max distance you can run them and also does it matter if I run the Bubbles up or down when mounted vertically in my grill.
     
  2. smokinu454

    smokinu454 county road cruisin Advanced User

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    i think the rule with the LIs was 18" seperation. not sure on the bubles, I know horizontal heads bubbles typically go outward but im not sure on vertical.
     
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  3. chakeubeam

    chakeubeam To Be Determined... Advanced User MFG/Vendor Premium Member

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    ^X2 18 inches
     
  4. Fast n Frivolous

    Fast n Frivolous PSL +5 Intermediate User

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    It was always recommended that bubbles were place on the outside however I remember some testing many years ago that showed zero real world operational difference.
     
  5. smokinu454

    smokinu454 county road cruisin Advanced User

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    his heads are BMW (Vertical)
     
  6. Holla

    Holla Premium Member Advanced User Premium Member

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    I went with 17" and UP! gonna check them out with my LRB shortly!
     
    Last edited: Jul 28, 2017
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  7. Andrew21

    Andrew21 "All Blade, All The Time" Administrator Advanced User Premium Member

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    Not sure if 8.8's went vertical at that time but if they are 8.9's you should be okay either way on the orientation of the heads
     
  8. Holla

    Holla Premium Member Advanced User Premium Member

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    They are BMW 8.9 heads :)
     
    Last edited: Jul 28, 2017
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  9. DaveD

    DaveD Premium Member Intermediate User Premium Member

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    In regard to separation distance, (horizontal 8.9 heads) I saw 18" mentioned. In my particular situation the closest I can get them (for a realistically possible install) is 21". They are situated in the lower grills right on either side of the license plate. Is there a constant variable in play regarding 18", where anything over that separation distance would see severe performance differences, or is there room for error to the tune of a few inches?

    Posted from my Pixel using the RDF Mobile App!
     
  10. chakeubeam

    chakeubeam To Be Determined... Advanced User MFG/Vendor Premium Member

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    Would adding a third head be possible? 18 inches is a rule of thumb but testing is always the best way to find out for sure.
     
  11. DaveD

    DaveD Premium Member Intermediate User Premium Member

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    I'll shoot over some photos where I just sat the sensors in the spots you see them in. Have not secured them yet. I suppose a third head could be placed in the lower center of the main grille, but there's mesh behind it with nothing to grab into.

    And, I literally just got in from the garage where I spent 6+ hours tearing apart the back, upper engine bay attempting to figure out how to breach the firewall. Then ultimately had to succumb to using the driver's quarter panel space, into the door jam, and through the rubber flex hose, into the cabin. At this very moment, I'm not far from setting something on fire just watch it burn. Lol.

    Posted from my Pixel using the RDF Mobile App!
     
  12. DaveD

    DaveD Premium Member Intermediate User Premium Member

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    IMG_20180302_145226.jpg IMG_20180302_145335.jpg

    Posted from my Pixel using the RDF Mobile App!
     
  13. DaveD

    DaveD Premium Member Intermediate User Premium Member

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    Quick update here

    I used some 3M Body tape, clear, double-sided, and temporarily mounted the sensors in those locations depicted from above photos. I am in the process of acquiring radar and laser guns for testing these sensors as well as assisting others in the area as needed. I'll update the thread with results once they become available, as I imagine there are others out there who will benefit from verification of wider separation for LI heads.

    Posted from my Pixel using the RDF Mobile App!
     
  14. System

    System PSL รท 2 Advanced User Premium Member

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    I had mine similar distance as yours, in the same spot. I was never pulled over, but that was pre-VPR era. I was roughly 20 inches edge to edge. As long as you only face legacy guns, you should be fine! ^^
     
  15. DaveD

    DaveD Premium Member Intermediate User Premium Member

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    So I've ran these sensors in that spot all week. Being so close the the ground, it's been a guarantee to get some parking alerts when driving up or reversing out of driveways, which was slightly annoying. Then I thought about some other factors, like how unprotected the majority of the car would be if they were "live", being so low.

    After many hours, beer, thoughts, and more beer, I finally came up with a way to mount the sensors in the top grill. They will be at the left and right sides, in the middle row. I'm basically using 3" long machine screws and two nuts in front and behind the grill to create the grip to hold them in place. Washers will be used as well to make sure the compression force doesn't allow the nuts to push through the grille.

    Surprisingly, due to the random mesh grille pattern, there is very little leveling that needs to be done. And the wires can route along the middle row toward the center where I can make a larger hole with a dremel to fit the power connectors through and continue cable management in the engine bay.

    You may have gathered by reading this that I have yet to actually install the sensors. That is because of beer and it being too cold to manipulate my hands. I have done a fitting already without securing anything. Also, I need to go buy a dremel. Lol

    Best part of the higher placement is that they are now exactly 18" apart.

    Worst part is that I am taking a dremel to my grille

    Anyway, for anyone else that enjoys Acura, it's no longer impossible to install jammers on these cars, just requires lots of patience and some creativity. ( ...and )


    I'll post pics after installation tomorrow for all to marvel.

    Posted from my Pixel using the RDF Mobile App!
    [doublepost=1520840275,1520645967][/doublepost]I finished this install yesterday and posted a bunch of information and pics in the Show Off Your Install section; feel free to check it out.

    www.rdforum.org: 2013 Acura TL Countermeasure Setup (The Demon Install)
     
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