Fabrication Custom fabrication ideas and concepts ranging from body kits, interior work, driveline tech, and much more.

5 point harness floor leg strap mount point new spot

Thread Tools
 
Search this Thread
 
Old 01-29-2012 | 02:28 PM
  #1  
Justin 87 GTA's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: Jul 1999
Posts: 844
Likes: 0
From: Long Island, NY
Car: 1987 GTA
Engine: 645hp/656 ft lb Blown 383
Transmission: 700-R4 3,000 stall
Axle/Gears: 3.55 moser 12-bolt
5 point harness floor leg strap mount point new spot

Hey all, I have a 87 gta with an 8 point cage and subframes.

I just got a 5 point harness (RCI) latch. I have a moubt spot on the roll bar for the shoulder straps. I will use the factory seatbeat spots for the lap straps.

My question is where to mount the crotch strap on the floor. (yes i searched and couldnt find pictures or a good description.

There is a bump and rail in the floor pan between where the two front seat mounts are. Do you dril through this? weld to it. please help me out. I would love to get this done today.

Pictures appreciated if possible.

Also, I would like it to be legal. Thank youvery much.
Old 01-29-2012 | 05:21 PM
  #2  
AlkyIROC's Avatar
Moderator
25 Year Member
 
Joined: Jul 1999
Posts: 17,174
Likes: 140
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: 5 point harness floor leg strap mount point new spot

Technically, the crotch strap needs to be attached to the frame as well or a reinforced point like the lap belts have. Something coming off a SFC directly under the floor where the mount will be will work. I used to have a piece of 2x2x1/8" angle iron welded to the SFC. The belt mounting bolt went through the floor and the angle iron to give it a good solid mount. Another option which should pass tech is to mount the crotch strap similar to the way the roll cage is mounted. Weld a steel plate to the sheetmetal then attach the mounting tab to that. Just make sure it's in some sort of a straight pull position.

My new setup has a framework attached to the cage. The seat and belts attach to the framework and nothing is attached to the floor.

Simply mounting the belt tab through sheetmetal with big washers on both sides won't pass tech if they look at it hard enough.
Old 01-29-2012 | 05:55 PM
  #3  
Justin 87 GTA's Avatar
Thread Starter
Senior Member
iTrader: (3)
 
Joined: Jul 1999
Posts: 844
Likes: 0
From: Long Island, NY
Car: 1987 GTA
Engine: 645hp/656 ft lb Blown 383
Transmission: 700-R4 3,000 stall
Axle/Gears: 3.55 moser 12-bolt
Re: 5 point harness floor leg strap mount point new spot

Thank you sir. I was thinking either of those two ways. Should it tuck under the seat or is it okay to put it just under the front edge? what is straight pull position, like facing upward? thanks
Old 01-30-2012 | 12:28 AM
  #4  
AlkyIROC's Avatar
Moderator
25 Year Member
 
Joined: Jul 1999
Posts: 17,174
Likes: 140
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: 5 point harness floor leg strap mount point new spot

You need to get a hold of a rule book. Both NHRA and IHRA say that the crotch strap must attach behind the chest line.

straight pull as in the belt loops under the seat and the mounting tab is in the same plane as the belts. You can't have it where the belt is horizontal and the mounting tab is vertical.
Old 02-02-2012 | 01:12 AM
  #5  
85z28kid's Avatar
Member
iTrader: (7)
 
Joined: Nov 2010
Posts: 179
Likes: 0
From: portland, michigan
Car: 85 iroc-z28
Engine: 049 headed bbc 4?? C.I.D
Transmission: T56
Axle/Gears: 3:73 posi
Re: 5 point harness floor leg strap mount point new spot

Doesn't racekraft make a bracket that bolts to the seat mounts that the crotch strap bolts to?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jorlain
Interior
12
08-24-2022 05:11 PM
Orr89RocZ
Power Adders
206
04-25-2016 08:28 AM
stalkier
Engine/Drivetrain/Suspension Parts for Sale
1
12-06-2015 11:25 PM
jharrison5
Engine Swap
5
08-19-2015 05:53 PM



Quick Reply: 5 point harness floor leg strap mount point new spot



All times are GMT -5. The time now is 12:22 PM.