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Speed Holes?

Discussion in 'Members' Lounge' started by machine, May 7, 2003.

  1. machine

    machine Banned

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    Ok i just got done reading an article on this fast ass integra from Florida, and it has a row of oval shaped holes drilled in the rear bumper. What gives? Less wind resistance? It seems ricey, but kinda makes sense. At the risk of a bonfire of flames, if I had a really fast car, is this a modification that makes sense? Just curious.
     
  2. BlackJDMdeath

    BlackJDMdeath Senior Member

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    it's called a diffuser. if you think about it... your back bumper is shaped like a parachute. also, the easier the air gets out from under your car the better ;)
     
  3. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    track car..... do what ever the fuck you want
    street car..... not worth it (and probly not legal)

    street cars have to keep safety in mind
     
  4. BlackJDMdeath

    BlackJDMdeath Senior Member

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    why on earth would it not be legal? do you have any idea what he is talking about? it's just holes cut in the rear bumper cover. if it helps you on the track to diffuse the pressure under the car and reduce drag, how could that not be good for the street?
     
  5. machine

    machine Banned

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    not arguing the track car/street car, but why would it be illegal. its just plastic bumpers isn't it? beat me to it blackjdm
     
  6. BlackJDMdeath

    BlackJDMdeath Senior Member

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    i'm also interested to hear your explanation how people do things to reduce safety on the track. while you're at it, tell me how that reduces safety AT ALL.
     
  7. vpSPOONsol

    vpSPOONsol Senior Member

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    by having like 6 big holes on ur back bumper, the bumper loses structural integrity....making it weaker. more prone to major damages in a rear end collison....
     
  8. BlackJDMdeath

    BlackJDMdeath Senior Member

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    since when did a plastic bumper have anything at all to do with a vehicles structural integrity? come on now.
     
  9. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    if all your doing is cutting ovals into the plastic bumper cover its not going to reduce safety
    if you are ripping out the bumper supports to make your new high fassion holes functional then it greatly reduces safety

    and removing the bumper supports is not legal in many places if any
     
  10. machine

    machine Banned

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    so when you buy one of those crazy ass bumpers with all the mesh in them your taking your life in your hands?Hmmmmmm i think not....seriously though that cheap ass bumper cannot have any impact on a collision. My wife bumped the rear of our Blazer and cracked the shit out of the front bumper.
     
  11. machine

    machine Banned

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    wow theres quite a collection of people in here huh? :lol:
     
  12. vpSPOONsol

    vpSPOONsol Senior Member

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    actually yes, my front street fighter bumper is fiberglass, and will get fu_ked up sooo bad if i ever hit somebody in the front. when puttin it on, it was also necessary to remove the impact bar, as with many cheap aftermarket front bumpers. so basically if i get hit in the front, im fu_cked....i know the consequences...
     
  13. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    also a diffuser isnt holes cut in a bumper

    its a solid smooth peice at the rear of the car usually with vertical fins on it used to reduce the turbulant swirl at the rear of the car (reduces drag)

    here is a CF diffuser for an NSX:
    [​IMG]

    here is a diffuser on a lotus elise:
    [​IMG]
     
  14. vpSPOONsol

    vpSPOONsol Senior Member

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    o, i wasn't refering to a diffuser, i was talkin bout the ovals i see on drag cars rear bumpers....cant find a pic though....
     
  15. Domeskilla

    Domeskilla Senior Member

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    Do you realize that fiberglass is just a fucking bumper COVER? Your bumper is the steel piece behind it. So fiberglass bumper is no different than your OEM bumper cover, except its heavier and probably a fucking picnic table.

    Cutting holes in the rear bumper does NOT hurt it, b/c you are just cutting the cover, not the actually bumper.
     
  16. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    i know what your talking about... i was responding to BlackJDMdeath he said that the holes were diffusers

    ive seed the holes done before... cant find a pic either :(
     
  17. Baker

    Baker Senior Member

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    For all the people spewing safety BS... even the beam doesn't do much for safety






    http://www.nhtsa.dot.gov/.........html
     
  18. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    ok so why is it illegal to remove them then?
     
  19. pissedoffsol

    pissedoffsol RETIRED

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    [​IMG]

    basically, you bolt that thing on, then cut out the holes.
    supposedly reduces drag.
     
  20. xionger1

    xionger1 Member

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    -Here's a pic of an STR diffuser.

    Over Rev
     
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