And if so why?

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Pete

Yes. Access to the fuel tank fittings.
Although there is also supposed to be a some trim protecting that edge that is messing.

WOW!
That is a beautiful under carriage!

Wonder if the tops as nice as the bottom is?

What's the "T" for? My car has only two hoses & four clamps.

You are missing the bottom pan that covers that whole area

Yup.

Thanks guys. I have the bottom cover- just removed it to pull the pedal box and do some rust proofing.

Even with the bottom cover though its obviously a place where water can get in. I'm embarking on rust proofing project. Does this area rust from water ingress from not being covered? I'm thinking of printing a cover for it after I wax the inside.

Pete

Next to the smaller drain tube in your picture, you'll notice a drain opening stamped into the metal which is supposed to drain any water that might get in there.

OMG what a great post....thank you very much!! My car was leaking gas so badly from the inferior rubber fuel lines I installed when I put my SS tunnel lines in that for the last 8 weeks I have been installing the correct R 30 9 fuel lines......so I have been looking at your picture the entire time and moved all of the connection to below the frame window.....so far it is working but what a difficult chore....nice to have someone in my same situation and working through it....I will prevail and so will you!!
gg

It’s an important easy access entrance for small homeless rodents.
From there they can access the paper heater tubes to allow them warm and cozy winter dwelling in the interior.

Would be cool if someone made a rubber or plastic plug for the hole.

Most likely 3 port pump relocated under the trunk

Seems like a pretty easy piece to 3d print

What's hanging out of your drainage slot?

4 inch Soffit Vent Screen... Easy, Keep rodents out...
http://www.914world.com/bbs2/index.php?s=&...t&p=2724414

Kind of a personal question.

That's what she said.

oh man…..


Anyway- there was a little m4 bolt hangin out of of the drain….

Thanks all- when I get the filament dried I’ll print up a little cover and post it.

Pete

+1, cheap, simple, easy

thanks for sharing

If I weren't in Japan this is the route I'd go..... shipping has gone up! For this reason every household will have a 3d printer in the future. Its the new microwave....

Pete

Looks like a 911 aluminum cross member? Does the OE cover fit that cross member?

CTTOI, Caplugs might have what you need. They used to provide free samples too.

I'm still stuck on the top being better than the bottom.

First draft: 100mm printed ring fits great. I’ll print it again with a full disc:

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In case anyone wants to print draw and print:

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Thats all folks!

Pete

Yes but 2 of the mounting points for the undertray have to be modified...no big deal.
And of course the support brackets off a 911 as Pete has,I made my own out of 19 x 6mm flat bar mild steel .

I know I'm treading near thread hi-jacking territory so, I'll keep it simple. The novelty of this mod interests me, but I wonder about the tangible benefits? Would love to hear experiences, if anyone, including OP would be able to offer a comparison of steel tube vs Al cast beam.

v/r,
Van

I know less than most as this mod was already on the car when I bought it. Aluminum obviously lighter but I did read a post stating that it flexes more than the steel. In that case I think it comes down to how hard the car will be driven. Personally on a street car I'm erring on set side of less weight.

You have to get the 911 cover that fits the aluminum crossmember and mounting brackets.

I have one on my big six if y'all need a picture.

This is what Doug had made for my car. Aluminum sheet:

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Beautiful work. I think your trunk drains (rubber pieces with flats) need to be rotated 90 degrees.