Fabrik8

I'm surprised you have come across one that someone's already done. There's a LOT of 240s with aftermarket seats.

All_Black_240

I have actually found some pretty decent write ups, but I want to do one that gets right to the point and offers one direct solution.

Fabrik8

Post some links if you still have them, especially if they have pictures.

All_Black_240

http://zilvia.net/f/tech-talk/284882...ent-guide.html

if you scroll about half way down the page you'll see what I mean by cutting out the "cat hump" but I plan on completely removing the hump and relocating the bolt hole that sits on top of it.

http://forums.nicoclub.com/my-240sx-...d-t368751.html

and if you scroll down on this one you can see how the floor looks when it is stock. (this dude did work on this coupe...extra clean!!!)

Fabrik8

If you can get someone to roll a new section of sheet metal to replace that hump then you should be golden. If you can just notch the hump (like that writeup) that may still be the simplest option though, and the least invasive. I wouldn't remove that stamped crossbrace if you can help it (it's been removed in the writeup) to keep the sills and floorpan rigid.

You definitely want to keep a generous radius along the transmission tunnel to maintain as much chassis rigidity as you can.

All_Black_240

I plan on removing the brace, but replacing it with a 1/4" steel strip. I'm going to try to take it out as one piece (without bending it) and bend the steel strip to match the contours, then weld the strip directly to the floor, with some spots reinforced by doubling up the steel. (like along the bends)

Fabrik8

That's a pretty heavy replacement for the stock brace...

All_Black_240

I figured as along as I'm in there ripping stuff out, I might as well put something good back in it. haha Plus I would rest a little easier knowing the car will hold up better if I were to ever get T-boned.

RE-SPECGARAGE

We always cut that hump out and weld a 1.5 x 3/4 rectangular brace. It allows you to put the seat about 2.5" lower

Fabrik8

Interior pics?

I love that color BTW, every time I see pics of that car I like it more. Wait, isn't there a build thread somewhere for that?