Right Side Nets in 911's?
05-10-2007, 11:38 AM
#16
Drifting
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Originally Posted by Gary R.
Not happening in my car, but thanks for the info.
05-10-2007, 11:54 AM
#17
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Originally Posted by Bryan Watts
What are the problems associated with mounting the inside nets in Porsches? Most of the BMW folks are simply making a slit in the dash and wrapping the strap around the cage bar that runs under or behind the dash. If that's not possible, some are just welding a mounting tab to the firewall and having it poke through the dash.
Is that correct Sean?
05-10-2007, 11:57 AM
#18
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Originally Posted by Gary R.
I guess if you don't mind cutting the dash in half (or opening a hole up high) there is really no problem.
05-10-2007, 12:08 PM
#19
NASA Racer
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Yeah, it's hard to get it mounted high enough in a 911. We went through the radio hole and welded a tab to the firewall. It's just too low and is about as high as you could get, I think. It will be even worse with stock seat rails. John put mine on the floor so I'm lower than most would be in the cockpit. I may try a different net to see if it's any better.
Here are some pictures of mine:
Here are some pictures of mine:
05-10-2007, 12:11 PM
#21
Three Wheelin'
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Hold on fellas... let's get back to the point. I have spoken with a few fabricators that have gone through the dash in 911 cars-- the clock hole to be precise. But some of the cars have an instrument/gauge/clock in that opening. 911 cars are very different from BMWs... I know a lot of the BMWs already have them and how they are fit up in those cars.
I have been in touch with Joe Marko at HMS (he is the US Schroth importer and is very knowledgable and helpful), and he is working on something that should be better for 911 cars. I don't officially have to have one because of my seat... I am just trying to collect info for our "loose confederation of enthusiasts" called the Porsche Racing Club.
I have been in touch with Joe Marko at HMS (he is the US Schroth importer and is very knowledgable and helpful), and he is working on something that should be better for 911 cars. I don't officially have to have one because of my seat... I am just trying to collect info for our "loose confederation of enthusiasts" called the Porsche Racing Club.
05-10-2007, 12:14 PM
#22
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I think that would help Bryan, but I'm not sure what is behind there. You would need to cut a hole in the top of the dash and might need to cut a channel in the front of the dash for the strap to come through.
05-10-2007, 12:17 PM
#23
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Here's the info on mounting the net from the BMW CCA rules...Joe Marko at HMS consulted on all of the safety related items:
C. INTERIOR – RIGHT SIDE NETS – Interior nets are strongly
recommended and are likely to become mandatory in 2008. Interior
nets are designed to capture the head and shoulder in angled and side
impacts. The triangular shaped net should be attached to the roll cage
just behind the seat with the upper part capturing the head just below
the line of sight and the lower part capturing at least 6” below the top of
the shoulder. The net should wrap around the seat at least a few inches
to provide additional support to the upper part of the seat. It should be
attached to the front part of the cage with a quick release lever towards
the front attachment point for emergency exit.
In Stock class cars, the radio or center console vents may be altered or
removed, as required, to facilitate the installation of a right side net.
The right side net can be attached to either the cage, the chassis or a
combination of both. When a car’s roll cage has no dash cross bar, a
cable may be run from the firewall (connected to the firewall using
heavy backing plates) to just past the dash (after removing the radio or
center vent as required). The interior net’s front connection may then
be made to that cable.
recommended and are likely to become mandatory in 2008. Interior
nets are designed to capture the head and shoulder in angled and side
impacts. The triangular shaped net should be attached to the roll cage
just behind the seat with the upper part capturing the head just below
the line of sight and the lower part capturing at least 6” below the top of
the shoulder. The net should wrap around the seat at least a few inches
to provide additional support to the upper part of the seat. It should be
attached to the front part of the cage with a quick release lever towards
the front attachment point for emergency exit.
In Stock class cars, the radio or center console vents may be altered or
removed, as required, to facilitate the installation of a right side net.
The right side net can be attached to either the cage, the chassis or a
combination of both. When a car’s roll cage has no dash cross bar, a
cable may be run from the firewall (connected to the firewall using
heavy backing plates) to just past the dash (after removing the radio or
center vent as required). The interior net’s front connection may then
be made to that cable.
05-10-2007, 12:19 PM
#25
NASA Racer
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I'll be interested to see what he comes back with. I can't think of how the clock hole would work unless the attachment point behind on the bars was far over on driver's right which doesn't sound good. I think the clock hole is too close to the seat.
05-10-2007, 12:22 PM
#26
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Originally Posted by 1957 356
I'll be interested to see what he comes back with. I can't think of how the clock hole would work unless the attachment point behind on the bars was far over on driver's right which doesn't sound good. I think the clock hole is too close to the seat.
05-10-2007, 12:24 PM
#27
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Originally Posted by Gary R.
Why the heck are we talking about BMW's?
05-10-2007, 12:30 PM
#28
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You BMW guys really ARE touchy aren't you.... and no, there are fitment issues in a stock class 911 that don't correlate well to a BMW so what experience are you referring to? Your general racing experience is greatly appreciated though!
05-10-2007, 12:43 PM
#30
NASA Racer
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Wow, here is the video that shows why a net is better than the halo seat. Yikes. Scary stuff.
click on "why you want a right side net" under the heading documents
http://www.hmsmotorsport.com/store/t...age-nets/#2296
click on "why you want a right side net" under the heading documents
http://www.hmsmotorsport.com/store/t...age-nets/#2296