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Thread: Fixed back seat mounts for bigger guys

  1. #26
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    '00 Z3C, '70 XJ6
    Thanks gents, I'll tally everything up and work on getting them made asap

    While I'm at it, I must say they miraculously fit even better with a 6 speed box


  2. #27
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    oskaloosa,ia
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    '01 3.0 ZCoupe
    Quote Originally Posted by Bryson View Post
    Thanks gents, I'll tally everything up and work on getting them made asap

    While I'm at it, I must say they miraculously fit even better with a 6 speed box
    I see what you did there. Nice.

  3. #28
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    St. Louis, MO
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    1996 328i race car
    OK, officially count me in for driver side only. Thanks.
    Chris

  4. #29
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    Socal LA
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    02 LSB MCoupe
    can you tell me the measurement from floor to the top mounting bolt for front and rear please

  5. #30
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    2001 M Roadster
    Are the pole positions narrower than the SPG XL and would these brackets work with them? I've yet to really see a definitive thread for plug and play seats for these cars.

  6. #31
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    Quote Originally Posted by Aw0802 View Post
    can you tell me the measurement from floor to the top mounting bolt for front and rear please
    Rear is 5.25" and front is 5.5" - I'm using the second front bolt which is 4.625" however

    edit: I had thought about your situation, and you could presumably drill new holes in the floor mount to move the seat a little over an inch farther forward. This would allow you to use the top front bolt and get more tilt out of the seat. I may actually do this for the passenger side..
    Last edited by Bryson; 06-01-2017 at 01:05 AM.
    2.8 Z3 coupe + 6 speed || 200kW electric 1970 Jaguar XJ6

  7. #32
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    Quote Originally Posted by JWin View Post
    Are the pole positions narrower than the SPG XL and would these brackets work with them? I've yet to really see a definitive thread for plug and play seats for these cars.
    Recaro has the pole position seat bottoms as the same measurement, so they should work. The pole position has a narrower upper body and much lower seat belt mount holes. I've sat in both and read recaro specs, but I can't say for certain that the pole position will bolt up and fit as well as the SPG XL.


    Tomorrow I have a little less work to get through at the office so I'll see what I can do about getting the order in.

    Question: Should I pre-drill seatbelt mount holes or leave them blank so you can fit to your liking?

    I have totals of:

    Driver only: 1 set (cfries)
    Passenger only: 1 set (99ls)
    Driver + Passenger: 6 sets (bionicbelly, remotion, danomite, kornfeld, jb1856, tommy1394)
    Last edited by Bryson; 06-01-2017 at 01:46 AM.
    2.8 Z3 coupe + 6 speed || 200kW electric 1970 Jaguar XJ6

  8. #33
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    1996 328i race car
    I would prefer that you do not drill the seatbelt holes on mine, thanks

    Sent from my Nexus 6 using Tapatalk
    Chris
    NASA GTS2

  9. #34
    Join Date
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    2001 Z3 3.0 Coupe
    Do we have an idea on price for one side vs both sides? Not sure if I missed that or not.
    2001 Z3 3.0 Coupe--Sterling Gray/Sunroof Delete/5MT

  10. #35
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    Nov 2005
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    Finland
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    Z3 Coupe individual
    Quote Originally Posted by Bryson View Post
    I have totals of:

    Driver only: 1 set (cfries)
    Passenger only: 1 set (99ls)
    Driver + Passenger: 6 sets (bionicbelly, remotion, danomite, kornfeld, jb1856, tommy1394)
    I am not ordering at this point. Thanks. Also propably not in future either because seats I am going for have 375mm width between mounting holes.

    Z3 & E36 RamAir systems, send private message for more information.

  11. #36
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    Quote Originally Posted by kornfeld View Post
    Do we have an idea on price for one side vs both sides? Not sure if I missed that or not.
    Two more questions:

    -Can you post the distance from the roundel on the steering wheel to the corner your butt goes and the back and bottom of the seat meet? Or from the brake pedal to that point? I want to get a sense of how far back the seat is.

    -Is it possible to use sliders with mounts like this? I'm guessing the answer is a solid no, but I figure it can't hurt to ask.
    2001 Z3 3.0 Coupe--Sterling Gray/Sunroof Delete/5MT

  12. #37
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    BMW Z3 3.0 VF SC'd
    Did I miss the pricing???

    I'm definitely interested, but I'd like to know the price for a set first. LOL

    $1,000,000!!!

    "You don't win silver....you lose gold."

  13. #38
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    Patience gentlemen! I'm no manufacturer and am doing this in my free time, I'll have numbers for you as soon as I've got em

  14. #39
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    No pressure whatsoever! Take your time.
    2001 Z3 3.0 Coupe--Sterling Gray/Sunroof Delete/5MT

  15. #40
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    Quote Originally Posted by Bryson View Post
    Patience gentlemen! I'm no manufacturer and am doing this in my free time, I'll have numbers for you as soon as I've got em
    I assume these are fixing the seat as far back as possible? What if we want sliders?


    Sent from my iPhone using Tapatalk
    1999 M Coupe

  16. #41
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    You're on your own for sliders! That's correct, these push the seat back as far and as low as possible. There is a lower setting that will work for cars without door panels and interior trim that is 7/8" lower than I am running.

  17. #42
    Join Date
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    Kansas City
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    6.0 Z3, E36 & F80 M3
    I can't tell from your pictures, but is the back of the seat touching the wall behind seat or is there still space/gap behind the seat?

  18. #43
    Join Date
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    Eastern Washington
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    01 M Coupe
    This appears to be a necro thread, but I'm curious if it happened. Are there any left? How much extra headroom results from this mod? Thanks!

  19. #44
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    I've since dropped the seat a peg lower. It now contacts the seat back carpet and I had to trim a hole in the b pillar cover but it sits easily 3" lower than stock

    D940A51B-F338-43A5-A953-C746F1A18EF2.jpg
    0F1C5D1F-2267-4A2B-9BA9-AE5D1C354E22.jpg
    34CA266E-C708-49A8-BD77-68F315D514E1.jpg
    Last edited by Bryson; 01-18-2018 at 10:57 PM.

  20. #45
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    E46 ZHP touring & Z3 3.0
    Holy Thread Revivalllll. Does anyone happen to have this guys contact information? I am hoping and praying he still has the CAD drawings as I would love to snag them from him!

  21. #46
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    Old files but these should be them. You can move the holes on the lowest flange to bring the seat closer to the steering wheel if needed. The position in CAD has the seat backed all the way into the firewall. Hope this helps!

    https://drive.google.com/file/d/1Hdk...w?usp=drivesdk
    2.8 Z3 coupe + 6 speed || 200kW electric 1970 Jaguar XJ6

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