Tubular seat rail installation

Discussion in 'Track Prep & Tech' started by A.N. Other, Aug 14, 2006.

  1. A.N. Other Banned after significant club disruption Dec 5th 2

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    Tube was CDS ie seamless, 38mm, 12 guage, 13.50+VAT, from Merlin Motorsport, Combe.

    Can someone translate 12 guage into mm? Alien to me...

    Just to pick up on the crotch strap mounting mentioned in the thread, this was a decent Mk4 Golf DTM car - captive threads for crotch strap just visible on rear seat rail:

    [​IMG]
     
    Last edited: Feb 22, 2007
  2. Dub20vt Forum Member

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    12 gauge is approxamately 2mm chris. Might be worth double checking with a zeus book though [:$]
     
  3. IanCarvell Forum Member

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    Chris, you dont usually put spreader plates on the tunnel side of the seat tubes.

    The theory is that when you have a "visitor" coming into your door at a fair rate of knots the tubes intentionally punch thier way into the tunnel so the driver moves with the shunt away from the incident.

    Nice job though...did you do your own welding?
     
  4. TrackCab16v Forum Member

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    top job chris
     
  5. A.N. Other Banned after significant club disruption Dec 5th 2

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    Ah, interesting point. I'd broadly copied what I'd seen around the VW paddock and WRC/S1600 cars, but I must check whether the inner rails were backplated. The BBT R32 was one I looked at a lot.

    I've just had a look at the SBG/Schmidt Golf over on here and I think it has plates on the tunnel (p. 31), but maybe as with the cage design, that the thinking has moved on over the years?

    I guess the flipside is whether a rail is as well tied into the tunnel on a roll, without the backplate?

    My welding [:$] done in the run up to the '06 'Ring trip. Finally got to grips (I think!) with just 'spotting' a MIG, after much studying of the appearance of welds on the S1600 Fiesta at Autosport '06.
     
  6. IanCarvell Forum Member

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    If you look at the Mk2 Grp.A picture on page 135....they have spreaders on the sill side but not on the tunnel.
     
  7. A.N. Other Banned after significant club disruption Dec 5th 2

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    Yep, indeed [:s] There must be some difference of views on this (I wasn't aware!) since here's the Wood-Scott Mk4 Golf GT car, which presumably was done by ART?

    Anyway, seems we've unearthed a bigger reason to get those OE seat rails out, which is why this forum melting pot is so good [:D]

    [​IMG]

    Edit: Neuhoff Diesel Mk4 Golf just checked and, yep it has them [:s]
     
    Last edited: Feb 22, 2007
  8. PhatVR6 Forum Junkie

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    I thought that car was built by Frazero?
     
  9. A.N. Other Banned after significant club disruption Dec 5th 2

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    Ahh, yep, think it was.

    Edit: ART claim shell prep in a Golf article! [:s]

    :lol:
     
    Last edited: Feb 22, 2007
  10. DEX

    Dex Paid Member Paid Member

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    IIRC 16 Gauge is 1.6mm, so 14 Gauge is 1.8mm, so 12 Gauge would be 2mm
     
  11. A.N. Other Banned after significant club disruption Dec 5th 2

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    Nice one

    (I can tell you look after rubbish with titanium UNF threads on .......:lol:)
     
  12. Dub20vt Forum Member

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    woohoo my guess on the last page was right then. Good job really as i've just aquired some :lol:
     
  13. Yoof Forum Member

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    16 gauge = 1.6129mm
    14 gauge = 1.9939mm
    12 gauge = 2.7534mm
    10 gauge =3.5103mm
    8 gauge = 4.2697mm

    Hope that helps.

    Cheers

    Yoof
     
  14. A.N. Other Banned after significant club disruption Dec 5th 2

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    Yep, really useful reference material :) Thanks
     
  15. Briankl Forum Member

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    Spreader plates on seat rails are actually required here in Denmark according to the national motorsports association.

    The idea of letting the seat rail punch through the sill and/or tunnel doesn't really appeal to me, because that'll mean that the seat is loose inside the cockpit, and you harness is in no shape to do what it is supposed to do. It really requires your seat to be stationary to keep you tight against it as to avoid back injury and such.
     
  16. stephcasscar Paid Member Paid Member

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    Great thread, a very interesting read,

    The seat rails I made in the Jetta were a bolted down box type, but a botch compared to that tubular set up[:$]

    I think I'll use the tubular set up from now on.
     
  17. gillm

    gillm ***** User

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    nice job mate hope mine turn out like those
     
  18. gillm

    gillm ***** User

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    just started to do this on my mk1 . but slightly diffrent .

    gona to be using 2by1" box section with nuts welded inside the to allow the seats to be bolted down . also im gona put a hole in the raer of the front section and the front of the rear section so if the nuts come lose i can fit new ones .

    i have removed the 2 side runners today but im leaving the front as i dont need it moved as im long legged , plus it will give it more strength (and less work :) )

    gona do a bit more next week as im on lates this week but i hope to have some plates and the box section in by this time next week .

    put the seat in and played hanger pilot for 5 mins too which boosted my moral in the car lol
     
  19. gillm

    gillm ***** User

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    did abit more yesterday .

    stripped back the sound proofing and removed the passenger side and made up so plates to cover up where the rails were .

    quick question tho .

    what is the disc that is on the floor ? mine is covered in some white sealent and is a pig to get off (the sealent)

    i will get some pics up soon
     
  20. A.N. Other Banned after significant club disruption Dec 5th 2

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    Leave the discs in imo - they're only from where access holes were put whilst the shells are welded/assembled together (I assume).

    You'll only have to bond / tag them back in.
     

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