Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

Race Seats: FloorBoard Modification

 
Old 05-23-2011, 07:33 PM
  #1  
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,558
Total Cats: 11
Default Race Seats: FloorBoard Modification

So I bought a Corbeau FX1 Pro with the aluminum side rails. I have not tried to place it in the car yet, but from what I have read the transmission tunnel hump can get in the way of the side mounts.

How many of you guys have hammered in the exhaust system hump in the transmission tunnel. Did that solve your issue? Did you remove the stock seat mounting locations? If so how are your seats mounted?

I refuse to use sliders and would really much rather have side mount than bottom mount. Any info would be great.

FOR REFERENCE:
96 NA miata
My current floor board:
Name:  IMG_8754.jpg
Views: 630
Size:  122.2 KB
And from this site:
http://houstonmiataclub.com/index.php?topic=1055.0





Last edited by 240_to_miata; 05-23-2011 at 08:01 PM.
240_to_miata is offline  
Old 05-23-2011, 07:59 PM
  #2  
Elite Member
iTrader: (51)
 
gospeed81's Avatar
 
Join Date: Nov 2008
Location: Spring, TX
Posts: 7,260
Total Cats: 26
Default

After removing the seat "bumps" as you've done I then had to do some serious coercing to get my Corbeau bottom mount in there. The solid Sparco rails came out of a C5 which obviously had more room there.

It CAN be done though. Just don't use anything with a sharp edge and do it on a hot day.
gospeed81 is offline  
Old 05-23-2011, 08:01 PM
  #3  
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,558
Total Cats: 11
Default

Look closer at my post. The pics I posted were just for reference from some other guy. Only the first pic is my car. I havent done anything yet.

So you are using bottom mount still. Not side mount?
240_to_miata is offline  
Old 05-23-2011, 08:15 PM
  #4  
Senior Member
iTrader: (1)
 
Join Date: Jul 2008
Location: Granbury, TX.
Posts: 1,273
Total Cats: 1
Default

The rear humps are really all that will need to be taken out. I have sparco side mounts for my pax seat and only had to remove the rears. If the front brace has to removed, I would look into a way to truss the floorboards a bit as then it becomes a nice big flimsy panel at that point. I see from the pics that the installer chose bar stock for that. If you have to clearance the tunnel then I would say it would be a very tight fit if door bars are in the future.
Machismo is offline  
Old 05-23-2011, 08:17 PM
  #5  
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,558
Total Cats: 11
Default

I am slowly regretting being a cheap *** hole and getting an FX1 Pro

I think I will just get the seat on the rails and see what I gotta do when the time comes.
240_to_miata is offline  
Old 05-23-2011, 09:23 PM
  #6  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,808
Total Cats: 691
Default

So your seat is side mount or bottom mount? Bottom is uber easy. Use the stock front holes and make your own in the back with giant washers underneath. If it's side mount, I really have no idea, you're on your own. Outside makes sense, but I have no idea how you'd tighten the inside bolts.
curly is offline  
Old 05-23-2011, 09:26 PM
  #7  
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,558
Total Cats: 11
Default

Yeah the FX1 Pro has both side and bottom. I think you get a little less flex from the sides, but I will most likely be doing bottom with large fender washers.
240_to_miata is offline  
Old 05-23-2011, 09:32 PM
  #8  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,808
Total Cats: 691
Default

https://www.miataturbo.net/race-prep-75/has-anyone-done-before-seat-rails-inside-57411/

Little helpful info in there. You'll need two strips of 1" wide, 3/16" thick steel, about 18" each I think? $4.xx at Home Depot. Like I said, for my height (5'10"ish), I could reuse the stock front holes, but couldn't reach the stock rears. I left them there so I could bolt in a stock seat if desired. Then I just extended the seat rails about 3-4" behind the seat, drilled a 1/2" hole, and used some bolts with giant washers underneath the car. Home Depot 1/2" fender washers aren't big enough, I had some left over from a harness eye bolt set, like this one:
http://www.saferacer.com/g-force-eye...?productid=883

Although on the passenger side for the eye bolts, I used one of Home Depot's 1/2" fender washers followed by a 3/4" fender washers, sourced from the same home improvement store.
curly is offline  
Old 05-23-2011, 10:35 PM
  #9  
Elite Member
iTrader: (8)
 
Join Date: Aug 2007
Location: Bellingham, Wa
Posts: 2,712
Total Cats: 3
Default

I believe keith used the fx1 in his targa car. Check the build site for details. I remember that the FX1 has stupid feet on the bottom which you really need to cut off for it to sit reasonably low in a miata.

I looked into getting one for a long time and finally decided that ultrashield seats are a better idea.
wayne_curr is offline  
Old 05-23-2011, 10:39 PM
  #10  
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,558
Total Cats: 11
Default

Yeah he cut off the feet, but didnt show any pics of the bracket.
240_to_miata is offline  
Old 05-24-2011, 03:08 AM
  #11  
Elite Member
 
Join Date: Apr 2010
Location: Newcastle, Australia
Posts: 2,827
Total Cats: 55
Default

Move to Australia, Buy RHD?

Lol
Dann
nitrodann is offline  
Old 05-24-2011, 01:26 PM
  #12  
Elite Member
iTrader: (4)
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,173
Total Cats: 39
Default

I mounted that seat in my miata, and to say the least it was a pain in the ****. I cut the feet off of mine, cut the front and rear stock mounting humps. I bottom mounted mine straight to the floor board with big *** steel backing plates, no bracket. I had to hammer out the trans. tunnel and after all that the left shoulder wing still kind of hit the inner door panel.

I'm 6'2" so I didn't really have room for sliders or a bracket, hence why I mounted it straight to the floor.
Efini~FC3S is offline  
Old 05-24-2011, 02:38 PM
  #13  
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,558
Total Cats: 11
Default

I'm only 5'10" so I'm Gunna see what I can get away with
240_to_miata is offline  
Old 05-31-2011, 02:08 PM
  #14  
Elite Member
iTrader: (11)
 
Join Date: Feb 2009
Posts: 2,959
Total Cats: 11
Default

Originally Posted by 240_to_miata View Post
I'm only 5'10" so I'm Gunna see what I can get away with
How did your seat install go? Did you used the stock rails? I just picked up a set of seats and am planning to use this method with stock rails. Anyone see a downside?

miatauser884 is offline  
Old 05-31-2011, 02:10 PM
  #15  
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: May 2007
Location: Cromwell, Connecticut
Posts: 2,558
Total Cats: 11
Default

Don't plan on doing mine for another month or so
240_to_miata is offline  
Old 05-31-2011, 09:13 PM
  #16  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,808
Total Cats: 691
Default

Stock rails raise the seat a good 1", +/-.25", and that's a big difference. Also, I have no real proof, but I don't think stock rails are the safest for racing seats, I'm not sure I'd trust the slider to stay put in an accident. They're also a pain to deal with, the rear holes are hidden and very hard to access.
curly is offline  
Old 05-31-2011, 09:30 PM
  #17  
Senior Member
iTrader: (4)
 
Join Date: Aug 2010
Location: Farmington Hills, MI
Posts: 505
Total Cats: 15
Default

Just to add to the downsides of the stock sliders: my brother's can only be adjusted a few clicks before the seat rubs the tunnel and can't move anymore.

My driver's side is almost done. I'll take pictures when it is finally in though because I have no idea what I'm doing.
njn63 is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full_Tilt_Boogie
Build Threads
67
03-16-2019 08:07 PM
emilio700
Wheels and Tires
151
06-02-2017 02:36 PM
Quinn
Cars for sale/trade
6
10-23-2016 07:58 AM
graexodus
Miata parts for sale/trade
5
10-26-2015 01:48 PM
chris101
Miata parts for sale/trade
2
10-09-2015 09:08 AM


Thread Tools
Search this Thread
Quick Reply: Race Seats: FloorBoard Modification


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.