Lateral-g Forums - Hey Brett...Velocity rollbar "fittings"

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- - Hey Brett...Velocity rollbar "fittings" (https://www.lateral-g.net/forums/showthread.php?t=17414)

The door bars make it easy to get in and out but I think they are a lot lower than the sanctioning bodies would like.

Quote:

Originally Posted by Blown353 (Post 176174)

At least I don't see shoulder harness hardpoints or a harness crossbar on it... things could get very interesting in the liability department in that case; I'm guessing the absence of a harness bar is not an accident.

I wonder what the shoulder harnesses are tied to.

Quote:

Originally Posted by MarkM66 (Post 176216)

I wonder what the shoulder harnesses are tied to.

They are attached to a bar that is just below the clamp for the door bars.

Is that low? I thought they were supposed to run straight back off the shoulders to avoid spine compression.

I know others know more about this than me, but I think I have read that somewhere. I guess you could move the bar up.

Quote:

Originally Posted by wiedemab (Post 176228)

They are attached to a bar that is just below the clamp for the door bars.

In the picture in the original post, that appears to be the case... but I didn't see any mention of harness attachments in the description on the webpage. However, in the webpage picture there appears to be harness tabs on the crossbar that is pushed all the way down near where the door bars clamp on.

Harness mounting specs vary by manufacturer, but usually the manufacturers want them anchored level (+/- a certain tolerance) with the harness passthrough provisions in the seatback, and I believe some sanctioning bodies specify their own requirements but I would hope they follow the testing and requirements set forth from the manufacturer. Some manufacturers such as Schroth have versions specifically for street cars that tie into the rear seat lap belt hardpoints (and have built in retractors), but using 4-point belts on a vehicle without rollover protection is another safety matter as well.

Here's a tech sheet regarding shoulder harness angle; they specify -5 to +30 degrees from the seat passthroughs for maximum effectiveness and to avoid spinal compression injury.

http://www.vickracing.us/technotes/SFI_Harness.pdf

Re the harness bar, I noticed this as well. On the webpage, the bar is shown mounted low (as low as it can go on the roll bar tubes) which, as previously stated, isn't correct. However at Sema, on both the display and in Brett's car, the harness bar is up near shoulder height.

so what was the word?? will the clamps be offered for sale without a cage, or wont they??? also what is the dimension of the stainless tubing??

Quote:

Originally Posted by rwhite692 (Post 176099)

Anyone know the story about the brackets or fittings holding the downbars/door bars and roll bar together on Brett's car? Did he fab them up or....??

I have seen the swing-out bar ends used before (welded into the tubing ID) but not the receiving clamps that go over the tubing OD. Pretty slick.

Seems like a cool idea, easy to take the door bar sections in/out for doing the interior, etc...I'm wondering what the various sanctioning bodies would have to say about these...Since I see Brett has had the car out on the track quite a bit, maybe it has not been an issue...they look plenty stout.

http://inlinethumb10.webshots.com/17...600x600Q85.jpg

Can you PLEASE tell me where you got these seats? I'm hoping they are manufactured NOT custom....

Thx,

Jeff

Quote:

Originally Posted by Swairlines (Post 349431)

Can you PLEASE tell me where you got these seats? I'm hoping they are manufactured NOT custom....

Thx,

Jeff

.."custom Cerullo Seats"...

http://www.ridetech.com/garage/barre...2011-velocity/