Jump to content
SAU Community

Can I Mount My 4 Point Harness Like This?

abcent

By abcent,
in Motorsport

 Share

Recommended Posts

Roy Grand Master

Roy

Posted
Posted

Even if you have a fixed back seat its easy to drill a whole in the tunnel with a pad un the underside for fastening the eye bolt for harness use.

Then for your lap sash you can easily weld a tab onto the new base frame that you use for the rails on the fixed back seat. The std seat belt botls on/off the seat frame on R32 GTSt, so its not that difficult to have the best of both worlds.

Best value seat on the market is Velo. Look great, very comfortable and very good quality

Esprit.jpg

G.P-90.jpg

I use to have the Espirit in my car before going to the carbon Momo. Soon to have a carbon Cobra...would have a matching pair but for...well thats another story :)

Link to comment
Share on other sites
  • Replies 75
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Posted Images

djr81 Grand Master

djr81

Posted
Posted
Even if you have a fixed back seat its easy to drill a whole in the tunnel with a pad un the underside for fastening the eye bolt for harness use.

Then for your lap sash you can easily weld a tab onto the new base frame that you use for the rails on the fixed back seat. The std seat belt botls on/off the seat frame on R32 GTSt, so its not that difficult to have the best of both worlds.

Best value seat on the market is Velo. Look great, very comfortable and very good quality

Esprit.jpg

G.P-90.jpg

I use to have the Espirit in my car before going to the carbon Momo. Soon to have a carbon Cobra...would have a matching pair but for...well thats another story :wave:

I was looking at the fat arse version (I have child bearing hips, all the males in my family have them) of the GP90. They have the benefit of being made here in Oz. Which is always nice. They are a damn fine seat.

I assumed the bottom two belts on a six point harness would go through the base of the seat & fix to the same anchorages as the lap belts. Or have I got this wrong, too?

Link to comment
Share on other sites
Beer Baron Grand Master

Beer Baron

Posted
Posted

no, they are anchored in the centre underneath the seat. you will need to drill a hole in the floor directly under the seat if you want to run the nut straps.

I had a velo GP90 too. yes they are a good value seat and can accomodate the 'ample gentleman' :wave:

Link to comment
Share on other sites
Roy Grand Master

Roy

Posted
Posted

From memory, from the final seating position, you have 20 deg of vertical either forwards or rearwards for mounting your crutch strap. So that means there is no way you can utilise any factory pick ups for those mounting points. Again, if you need to use a 6 point harness then its not that hard to frill through the floorpan and with a comp plate mount the eye bolt for the harness.

Have you ever driven a car with a crutch strap? I have driven an old Van Diemen and the harness almsot made my cry it was so painful. So 1st thing is to check if you think you can get comfortable with the your balls being cut in half by a strap. :wave:

Link to comment
Share on other sites
Beer Baron Grand Master

Beer Baron

Posted
Posted

yeah when I drive the race car (alfa) i leave the crutch strap off. it gives me the shits. I've tried both the T shape ones, and the V shape ones and they both suck. hence when i bought the willans for the GTR i bought it sans crutch breaker.

Link to comment
Share on other sites
djr81 Grand Master

djr81

Posted
Posted
From memory, from the final seating position, you have 20 deg of vertical either forwards or rearwards for mounting your crutch strap. So that means there is no way you can utilise any factory pick ups for those mounting points. Again, if you need to use a 6 point harness then its not that hard to frill through the floorpan and with a comp plate mount the eye bolt for the harness.

Have you ever driven a car with a crutch strap? I have driven an old Van Diemen and the harness almsot made my cry it was so painful. So 1st thing is to check if you think you can get comfortable with the your balls being cut in half by a strap. :)

So do they chafe your bollocks when you head out (ie when they are large) or on the way back after you have scared yourself silly? (ie when they have shrunk to the size of sultanas) :blush:

I drove a Mazda with a 4 point harness. As I said the lap belts just rode up over my guts - hence if I did have a bingle all that would have happened would be that my spine would have snapped in half. No biggy but I thought a 6 point would prevent that. :(

Looks like another hole in the floor. Goodo. More than one way to lose some weight out of the car.

Link to comment
Share on other sites
Roy Grand Master

Roy

Posted
Posted

If you tweak the harness lengths you can normally stop that from happening with a 4 point harness.

Also are you running the std seat, as most aftermarket seats will stop the lap straps from riding up. I find its best to never touch them. Move the seat back, do the lap straps only. Roll the seat forward as far as it goes using the rail to tighten the lap straps. Then click in the shoulder straps and tighten shoulder straps as required. Doesnt ride up at all

I hear what you are sayign about back injuries, seats and harnesses though...i share that same concern :blush:

Link to comment
Share on other sites
Beer Baron Grand Master

Beer Baron

Posted
Posted

i just try to avoid crashing. it's worked so far. and yeah, as troy pointed out, harness with stock seat is crap. harness with bucket means the harness guides keep the harness lap belt nice and low.

Link to comment
Share on other sites
djr81 Grand Master

djr81

Posted
Posted
i just try to avoid crashing. it's worked so far. and yeah, as troy pointed out, harness with stock seat is crap. harness with bucket means the harness guides keep the harness lap belt nice and low.

Well that was pretty much plan A - has worked a treat so far. The fact that the seat is too small & kills me by bruising the living @$%# out of my ribs & giving me back ache from no lumbar support is neither here nor there.

The problem is, like you say, that a standard or even reclineable seat with a 4 point harness sucks big time. On the other hand a fixed back with good hip bolsters & the holes to fit the harness doesn't work at all well with the standard belts.

Which pretty much leaves me up a well known creek.

post-5134-1176257072.jpg

Link to comment
Share on other sites
irokin Contributor

irokin

Posted
Posted

How do the GP90s (XL, XXL?) compare with the Sparco Evo XL? I know the Evo XL fits me....but Id rather not spend that much on a seat Im gonna use once every few months. What about the Cobras in GT width?

Cheers,

Ben

Link to comment
Share on other sites
Psymon Mentor

Psymon

Posted
Posted

When you say that, you mean the seat can still be in place but no one sitting there yes? That would work because i don't imagine i would have someone in the back seat at a track day! :)

Link to comment
Share on other sites
  • 3 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Rezz
      Japan Scrapbook

      By Rezz · Posted

      G.G.C. (Gibier German Cook) restaurant in Motomachi in Kobe: A tiny 2 floor restaurant that was founded in 1976. The original couple who owned/ran it retired and sold the business to a corporation who pretty much tried to keep it the same as it was.  Lots of lesser known (to me anyway) German beers available.  Venison with vegetables. The meat came from deer from Hokkaido. The chef told us that there's a whole industry around the use of all parts of the deer from the antlers to the hooves. Sure enough, directly accross the street from this restaurant is a shop that sells all manner of utensils, clothes and objet d'art all made from deer skin, bones and horns.... also owned by the same corporation. The venison was super tender 😋 Various decorations, a lot of which were quite old, no doubt from the original owners. A nice pilsner too which I'd never seen before.  It's well worth a visit but check the opening hours, they're closed on Wednesdays, only open 11:30am - 3pm on Mondays and Tuedays, 11:30am-3pm for lunch and 5pm-11:30pm on Thursdays, Fridays and Saturdays, and 11:30am-3pm and 5pm-9pm on Sundays. Last order is 30mins before close.
    • Rezz
      Japan Scrapbook

      By Rezz · Posted

      Yep around 2m long or thereabouts.  I made another post in the photo diaries 17 years later lol. I swear it has not been that long!
    • acsplit
      SAU Motorkhana Saturday 18th May Avalon including entry list.

      By acsplit · Posted

      Full results via link below https://docs.google.com/spreadsheets/d/1inu1mRRO0WjV2-3vGYsjnmYggVOzmApWOby68GwPGcI/edit?usp=sharing  
    • BK
      Another BK R32 GTR money pit...

      By BK · Posted

      Have I not posted since 2022 ? wow... Yes, it's pretty much finished mechanically. I'll probably sell it soon as the old man is 80 in November, so 99% he won't ever drive it again. I don't really need 3 GT-R's and I haven't driven any of them since September last year - correction, drove my 33 earlier this year on Australia day. All of them have been like this since then.
    • The Bogan
      MLR's Bogan cruise ship

      By The Bogan · Posted

      So, after talking to Tyson at Auto Tech Engineering about my "cunning plan", he suggested to "not piss money away on stuff that the car probably doesn't need" (the max IAT at the end of the 1/4 ever only seen around 30°C, which is in no way a issue, and as such, for what I use the car for I really don't need colder IAT anyway The whole point of the "upgrades" that I thought about doing was that my IAT started creeping up from 25°C to 30°C when cruising, then drop back down, then raise back up, rinsing and repeating, it has never done that before, so after talking to FI interchillers they assumed that it was the Bosch pump starting to fail, and if I was going to replace the pump....... I would do my usual thing of "while where in there" But, Tyson said he has seen similar things happen to IAT with failing or leaking AC compressors on other cars with interchillers, and as the AC compressor is 22 years old it is probably well on the way out anyway, and if a electric water pump fails it stays failed and doesn't just speed up and slow dow, but if a AC compressor starts to fail or is leaking, it will fluctuate and give a typical result to the IAT He said he could test the compressor and see how it is functioning and pressure test the whole system, but, as I do, I've just got them to order a new compressor to install to start with, and do a AC service and see if that fixes the issue That way, if it is the compressor, I wouldn't be spending lots of coin on something that wasn't the issue, and not actually needed, as the stage 2 kit, and pump, comes in at around $2k in parts alone, not including the plumbing and other parts that will be required or labour  And apparently the Bosch pump I have is really reliable and well up to task for the flow/pressure requirements that I need to keep my intercooler and massive amounts of boost heat (7 psi LOL) under control giving a nice and cold IAT A big shout out to Tyson for this, not many people will talk a idiot out of wasting money on car modifications, and the saved car budget funding can be wasted elsewhere on things that I may, or may not, need, like a nice new leather SS interior with red stitching......maybe I can convince the Minister for War and Finances into a nice trip down to Victoria for a week away to see the sights (I'll explain that I will need a hire car once we're down there so we don't have to worry about the Commodore being parked up on the streets at night, and it just so happens there's a joint that I can store it during that time) $1680 for all of the interior trims, + installation cost (I'll ask for a quote to install the trim if the new compressor fixes the issue)   https://leatherseats.com.au/products/leather-seats-trim-skins-kit-to-fit-vt-vx-vy-ser1-ss-green-black-diy-install  
×
×
  • Create New...