6 Point Sub Belts - MY350Z.COM - Nissan 350Z and 370Z Forum Discussion

Notices
Autocross/Road SCCA Solo II, SCCA Club Racing, Redline Track Events, Speed Trial, Speed Ventures, Grand-Am Cup, JGTC, Procar Australia

6 Point Sub Belts

Reply

 
 
 
Old 03-12-2018, 05:55 AM
  #1  
mattm_415
Registered User
Thread Starter
 
Join Date: Nov 2016
Location: NY
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Default 6 Point Sub Belts

I am in the market for 6 point harnesses for my 03 Z. The car has a full cage and proper bucket seats. I would like to see some pictures of how people have mounted their 6 point sub belts before I pull the trigger on a set.

I want to mount them through the floor but my concern is the irregularities in the floor pan below the seat. It also seems like the frame rail passes directly below the optimum location for one of the sub straps.

Please post pictures below. Thank you!
mattm_415 is offline  
Reply With Quote
Old 03-12-2018, 06:06 AM
  #2  
dkmura
General & DIY Moderator
MY350Z.COM
iTrader: (62)
 
dkmura's Avatar
 
Join Date: May 2002
Location: Aurora, Colorado
Posts: 6,394
Thanked 583 Times in 403 Posts
Default

Sorry, the race Z is locked in the enclosed trailer and the belts are not visible anyway (already installed). So no pics. But rather than insisting they be mounted to the floor, why not mount them to the seat base instead? My custom base has a large support bracket almost directly underneath the slot in my Momo race seat that I drilled and attached my sub belt to.
dkmura is offline  
Reply With Quote
Old 03-13-2018, 07:30 AM
  #3  
mattm_415
Registered User
Thread Starter
 
Join Date: Nov 2016
Location: NY
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Originally Posted by dkmura View Post
Sorry, the race Z is locked in the enclosed trailer and the belts are not visible anyway (already installed). So no pics. But rather than insisting they be mounted to the floor, why not mount them to the seat base instead? My custom base has a large support bracket almost directly underneath the slot in my Momo race seat that I drilled and attached my sub belt to.
The car is actually a drift car but it has been built with SCCA specs in mind. Most of the organizations I drive with state the belts cannot be mounted to the seat or seat bracket.
mattm_415 is offline  
Reply With Quote
Old 03-13-2018, 08:10 AM
  #4  
MicVelo
350Z/370Z Tech Moderator
MY350Z.COM
 
MicVelo's Avatar
 
Join Date: Oct 2014
Location: Northern California
Posts: 6,274
Thanked 1,729 Times in 1,266 Posts
Default

Originally Posted by mattm_415 View Post
The car is actually a drift car but it has been built with SCCA specs in mind. Most of the organizations I drive with state the belts cannot be mounted to the seat or seat bracket.
Even a welded seat bracket? Interesting as I seem to recall that if you welded the seat brackets, they could serve as a mounting point.

I have no current experience with 6+ point systems but back in the day, welded structures were the hot ticket. In the case of the Z33, it might be that you'll need to fab a sub-belt plate to the floor and either mount the eyelets to a raised platform (box or steel plate) or form a mount that fits the floor to effectively spread the belt load.

I actually had a piece of angle iron bent and welded to the top of the floor pan, extending to the trans tunnel and the door sill; then drilled and passed the eye bolts through the floor and reinforced with another angle iron under the car with no impact on ground clearance. The funny thing was, it passed tech as the angle iron(s) served as the load spreader without load washers. (Mind you, this was nearly 40 years ago, used "only" a single/ball breaker sub-belt, and NOT on a Z.)

Oh, what made this amazing was the "angle iron" was fabbed from an old bed frame. (M-I-C.... K-E-Y.... EM OH YOU ESS EEE....)

Of course, I don't recommend doing this without first checking the GCR and/or talk to your local scrutineer to determine its legality. (I also have no idea how the floor/frame rails are oriented, sorry.)

Last edited by MicVelo; 03-13-2018 at 08:16 AM.
MicVelo is offline  
Reply With Quote
Old 03-13-2018, 11:56 AM
  #5  
Blurvision
Registered User
iTrader: (4)
 
Join Date: Oct 2012
Location: Tuxedo, NY
Posts: 566
Thanked 43 Times in 38 Posts
Default

Blurvision is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GeauxLadyZ
Interior
2
07-11-2012 06:29 PM
sentry65
Engine & Drivetrain
5
03-29-2006 06:25 PM
bigern1970
Forced Induction
29
06-19-2004 01:16 PM


Thread Tools
Search this Thread
Quick Reply: 6 Point Sub Belts


Archive Advertising Cookie Policy Privacy Statement Terms of Service

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.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: