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Vanne's new racing seats.

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Beedub
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Vanne's new racing seats.

Post by Beedub » Sun May 22, 2016 8:23 pm

Viren wrote:Those seats look very cool, am I right in thinking you save around 25kg each side from this ( I think standard electric seats weigh around 30kg).

on zpost someone weighted a set and they are 36kg EACH.... so this is going to make a a serious difference, expensive change for this car however, lots of little pieces needed to make this work.
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Post by Vanne » Tue May 24, 2016 4:26 am

36kgs ... each... including hardware to mount and other bits and bobs, these weigh 8.5kgs.. so 27.5 x2 kgs.. I recon the roll bar with all bits will weigh in around 12kgs, so still a good weight saving.

I just spoke to Laura from Tillett, and recons seats should be done in 2 weeks...
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Post by tertius » Thu May 26, 2016 5:28 pm

I have Tillett seats (B5 though) in my car, with 6 point harnesses and the inertia belts retained, getting it all sorted is a right PITA I can tell you.

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Post by SonnyA85 » Thu May 26, 2016 6:02 pm

ONLY USE HARNESSES IN CONJUNCTION WITH A PROPER RACE SEAT, A ROLLCAGE AND A HELMET!

If you are using harnesses and no cage, you are pinned in place if the car rolls, placing the energy of the crash directly into your spinal column when the roof collapses and your head meets it.

Why the need for a helmet?

very big, very hard bit of metal right beside your head...Fancy headbutting it at 50mph?

Something else to make sure you do correctly if you have seats, cage and helmet is the angle of the rear straps of the harnesses.

Ideally, they should go straight back from the top holes in the seat to a SECURE mounting point; idealy a horizontal spar which is a properly braced and triangulated part of the roll cage...please...not a strut brace...I've seen that far too many times.

A lot of people angle them down to the rear seat mounting points.

Not a good idea.

What happens if the straps are angled sharply downwards behind the seat is that, in the event of an impact, your body is thrown forward, tensioning the straps which, due to their angle, place downward pressure on the back of the seat.

The seat is not designed to withstand such pressures and can snap.

This means that the lower part of your body is being held in place while the force of the upper part of your body moving forwards during the impact is being placed down your spinal column via your shoulders.

So...they're not something to do half-heartedly.

You should literally only use harnesses when they're properly anchored and in conjunction with a cage, proper seats and a helmet.

On the road, a harness offers zero convenience. Furthermore, used incorrectly, it will offer less safety.

If you're on track, a cage, seat, harness, helmet and neck restraint.

...Do you really want to drive around day to day with a helmet on? Should only be used on track cars and nothing else.

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Post by Simo » Thu May 26, 2016 8:03 pm

A lot of good points
?

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Post by tertius » Thu May 26, 2016 9:26 pm

Though perhaps a little bit hysterical.

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Post by Vanne » Fri May 27, 2016 7:15 am

Actually, all really good point and actually pretty much all spot on. :thumbsup:

Jonny, thx for your well thought out post, very much appreciated.

I have a roll cage, but unlike most e86 cages, mine is a little different, mine runs along the same line as the e85 roll hoops, so head strike is impossible, unless its also possible to hit your head on the e85 hoops.

Secondly, ill have both still installed, factory belts and harness for trackdays. My harness belts are going to be installed behind the bulkhead, coming through the bulkhead on a bar +- 25 degrees max from straight to the shoulders, as per rules.

The guy designing and fabricating my bar is very conversed in the safety of racing and wont do anything unless its safe.
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Post by cj10jeeper » Fri May 27, 2016 5:37 pm

cj10jeeper wrote:There's references to it on the internet about requirement of being inertia and one handed, but I cannot see a reference in the MOT handbook. The online version is however 4 years out of date, so not certain.

As it 'passed' I didn't challenge him, but will ask when I next see him of the rule or legislation referenced.
Vanne - just to update on this I spoke to the tester today and in fairness he immediately agreed he did not have the reference to the rule to hand. He remembered it from having an MOT test inspector flagging it and hydraulic handbrakes to him on a tester assessment, but would check it out and let me know next time I see him.
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Post by Vanne » Fri May 27, 2016 6:10 pm

No worries bud, thx for taking the time to check for me mate, much appreciated. :thumbsup:
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Post by Vanne » Thu Jun 09, 2016 6:24 am

tertius wrote:I have Tillett seats (B5 though) in my car, with 6 point harnesses and the inertia belts retained, getting it all sorted is a right PITA I can tell you.
Pics please and some inside info on what you did to get it all working together before my seats arrive would be awesome!! :)

Just a quick update on those who contributed to the roll bar thread.. car has been in a bit of limbo atm, still waiting for the seats to be finished, hopefully within the next week or so, need to seats to be installed to be able to finish the roll bar as the seatbelt bar must be within 25 degrees of the shoulder. My roll bar builder didn't want to guestimate the height , so we have to wait. Install seats, measure up where i sit in it, and then design and implement the harness bar.

Luckily its stinking hot in Dubai atm, so wouldn't be driving that much anyways, but have been missing seeing my car terribly.. :|

can't wait for this part of the project to be finished.

here's is something i haven't thought about.. with the harness in place, should we keep the airbags in place? Just putting it out there..
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Post by Vanne » Thu Jun 09, 2016 6:31 am

Beedub wrote:exactly same route ill be taking, with a twist...... mine fell through as you know vane but imo this is the perfect way to get some real weight out the car, they really add to the feel of the vehicle too, with my being a strict weekend toy, i have no issue with them at all... Well done, your car is turning into something rather special!!
Thanks Byron, mate i gotta say, you've been an inspiration. :thumbsup:
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Post by Beedub » Thu Jun 09, 2016 7:41 am

thanks man, means alot actually :-)

keep the pics coming!
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Post by tertius » Fri Jun 10, 2016 5:21 pm

Vanne wrote:
tertius wrote:I have Tillett seats (B5 though) in my car, with 6 point harnesses and the inertia belts retained, getting it all sorted is a right PITA I can tell you.
Pics please and some inside info on what you did to get it all working together before my seats arrive would be awesome!! :)

...
here's is something i haven't thought about.. with the harness in place, should we keep the airbags in place? Just putting it out there..
Here's a couple of pics:

Image

Image

Here are the bits and bobs I needed:

1. two seats!
2. two sets of harnesses
3. two pairs of side mounts
4. two pairs of runners (fore/aft adjustment)
5. two Sparco seat brackets/frames - these bolt to the floor of the car and the runners bolt to these
6. lots of 10.9 bolts, nuts and washers in various sizes
7. lots of Tillett seat spacers - these came with the seats
8. eight FIA eye bolts
9. four FIA eye bolt backing plates
10. four non-FIA eye-bolt backing plates (for the lap belts)
11. a drill and a large drill bit - the right size for an FIA eye bolt
12. passenger seat occupancy mat/sensor
13. code reader able to reset the airbag light
14. a lot of patience

I have the lap belts going to eye bolts fixed to the side mounts - in order that they will move with the seat.

The crotch straps attach to a cross bar that is part of the Sparco seat bracket/frames

The inertia belt is retained and has all the same fixing points as standard except that the belt receptacle (tunnel side of the seat) is now retained by an FIA eye bolt, which in turn has the tunnel side lap belt attached.

Regarding the airbags if you are retaining the inertia belts then I would definitely keep the airbags as well.

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Post by Angelus666 » Fri Jun 10, 2016 8:46 pm

Nice, very nice! Do you sit lower in the car than the standard seats? I'd love to find a seat that would allow me to be 1 or 2 inches lower than the lowest setting on the standard set up

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Post by Vanne » Mon Jun 13, 2016 10:09 am

tertius wrote:
Image

Image

1. two seats!
2. two sets of harnesses
3. two pairs of side mounts
4. two pairs of runners (fore/aft adjustment)
5. two Sparco seat brackets/frames - these bolt to the floor of the car and the runners bolt to these
6. lots of 10.9 bolts, nuts and washers in various sizes
7. lots of Tillett seat spacers - these came with the seats
8. eight FIA eye bolts
9. four FIA eye bolt backing plates
10. four non-FIA eye-bolt backing plates (for the lap belts)
11. a drill and a large drill bit - the right size for an FIA eye bolt
12. passenger seat occupancy mat/sensor
13. code reader able to reset the airbag light
14. a lot of patience

I have the lap belts going to eye bolts fixed to the side mounts - in order that they will move with the seat.

The crotch straps attach to a cross bar that is part of the Sparco seat bracket/frames

The inertia belt is retained and has all the same fixing points as standard except that the belt receptacle (tunnel side of the seat) is now retained by an FIA eye bolt, which in turn has the tunnel side lap belt attached.
This is great, love what you've done and no doubt ill be doing something very, very similar…

I have a bunch of questions if I may.. hopefully you've got some more pics of the seat install and progress?

as you've kept your original seat belts, did you also keep your original pre tensioners and buckles? if so, where /how did you mount them?

Would you mind sharing how you've attached the harnesses at the back of the seat? and a few pics of said mountings please :)

Does the seatbelt light come on if your drivers buckle isn't pushed in?

Id love some more pics of how you've attached the sliders to the floor and the seats to the sliders..

hope thats not being to much trouble.. :thumbsup:
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