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Beautiful fabrication by everyone!
I am very impressed! Love to see what you guys are doing!!
Post them if you got them!
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944Sand951,
Hey brother, I just have been too busy with things to follow up & with the new laptop my first stop is Rennlist (its my home group). You have made a lot of good suggestion and I appreciate it all!
Please don't take offence that I don't always follow advice (it's not you, its just my nature).
YES 944Sand951 is correct, this is a street and sometimes track car. When you love the 944 as much as I do you want it EVERYDAY. I'm a junky! I'm hooked baby.
This is why I am moving the driver's position rearward and downward to buy more headroom for safer un-helmeted street use.
I am keeping full HVAC. I suspect many of the builds seen here are track specific & the a pillar and dash bar designs reflect that.
-Would love to see pics of a pillar bars with the window net mounts welded. I don't have a net but perhaps I can weld a front one in based on pictures and later add the bolt on style rear net mounts (I have room at the back for the bulky clamp on at rear but not front).
big step forward tonight. dropped the cage to weld the top of the joints, then started reattaching to the main hoop. In 2 days I will make some plates for the a-pillars.
What he's failing to mention......this is a street car.....!
Further reason to pay very careful attention to padding. Padding is its own subject.
This should be prefaced that a cage is not ideal in a street vehicle. To continue..
The immediate interior is padded for a reason (as it is in any other modern cockpit). Padding is strategically placed on any area of possible impact. The pillars, roof, dash, etc.
When you took off the headliner you would've seen several medium-density foam pieces glued to the roof. Additionally, foam is underneath the upholstery on the dash, horn pad, pillar trim, visor panel, etc. etc.
Originally Posted by Noahs944
I would consider the angle at which you attach the bar to the sill.
If you have them angled that way for ingress/egress then you should consider moving them forward of the dash, then coming straight down. I think 951and944S's setup is like this (on pelican)?
Originally Posted by Noahs944
Could be an illusion, but the welds look a bit funky on that rear plate.
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I don't think anyone is against your ambition.
However, you should really consult someone licensed in structural engineering if you are building your own cage.
I imagine they would have a few questions:
-Why do the A-pillars join the sill at an angle that is not 90 degrees?
-What is the purpose of the vertical beam coming off of the tunnel? While it would transfer some load, I think (could be wrong) it is negligible unless it is there purely to hold something.
-Have you determined that the X-brace does not interfere with the proper location for the shoulder belts?
I am not a structural engineer. Nor is the internet. Best to talk to someone in person.
Following other designs only takes you so far. And just because it is a racecar, doesn't mean it is built well.
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Last edited by FrenchToast; 06-20-2017 at 01:45 AM.
I did a "Double hoop" so I was able to put the main hoop as far back as possible. Then I did an offset bend Down the B Pillar, This allows for a couple of things, 1) Room 2)Ability to finish weld through the sunroof. 3. VERY sturdy door bars.
And My knee Bar is behind dash nicely... Although its a Racecar.. Its actually on the road...
Hope this give you more ideas...
I did a "Double hoop" so I was able to put the main hoop as far back as possible. Then I did an offset bend Down the B Pillar, This allows for a couple of things, 1) Room 2)Ability to finish weld through the sunroof. 3. VERY sturdy door bars.
And My knee Bar is behind dash nicely... Although its a Racecar.. Its actually on the road...
Hope this give you more ideas...
2" x 2" x 1/4" angle iron fits the contour of the front doorsill perfectly. That's what we used for the front A-pillar base plates. Might save you time making base plates. Just make sure they are long enough so they meet the requirements for minimum base plate area.
FrenchToast "
I imagine they would have a few questions:
-Why do the A-pillars join the sill at an angle that is not 90 degrees?
-What is the purpose of the vertical beam coming off of the tunnel? While it would transfer some load, I think (could be wrong) it is negligible unless it is there purely to hold something.
-Have you determined that the X-brace does not interfere with the proper location for the shoulder belts?"
My response:
After studying various rally cages and the Hanksville SCCA944 cages, I determined this style and angle of a-pillar is "common" but probably safer than "s" bend a pillars which might bend in towards the occupants... and the design I chose while making ingress/egress easier and still allowing hvac vents user friendly in a street car. It's a compromise, but still strong.
The transmission tunnel at the rear seat panel is probably the single strongest part of the 944 body; it has everything going for it: multiple planes, multiple layers of material and great angles without compromise and it's also got the Torque tube underneath as a safety net! It's an overlooked strong feature in my humble opinion.
Yes this cage will allow use of oem or after market harnesses.
06-19-2017, 09:32 PM
