Quote:
Originally Posted by Elombard
At first I thought - this will be brittle and could fail in a wreck.....then I remembered the seats are made out of CF or FG. Only as strong as the weakest point.
If you glue the mounts to the tunnel they wont be moveable? I thought you wanted to be able to move them 2" back if needed?
Can you remove them if they are glued - with out getting too crazy? I like this way better than welding against that tunnel with out adressing fuel lines (like id did - roll eyes).
Another thought we cut off the stock mounts like you did and made a frame with 1" square tube and some flat.
I wonder if you could use the square CF tube that is available to cross brace for added strength or maybe even instead of the custom brackets you made. I have never looked I suppose the CF tube is $$$
I love this and I am going to go this route if I ever do it again.
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Erik,
No I don't think that the CF will be to brittle and the failure modes looks like and they flex quite a lot before breaking. Mine are stronger that steel of Al of the same size so they should be plenty strong enough. Planes, cars, spars, racing sailboats and many other things are being built from this stuff.
Yes the intent is to permanently glue and bolt (M8's) the rails to the tunnels. My feeling is that I wanted lots of surface area to apply the stress to. So taking them out won't be an easy option. They will be part of the car just like the original seat mounts but ~1.5" lower. The glue I'll use will either be Hysol or a 3M made for composite to steel.
The way I'll be able to mount the seat up to 2" further back is I'll have 3 sets of mounting holes with nuts on the top. The front ones in the standard position and then two more 1 and 2" back. So if you need more leg room no problem. I made the mounts almost 18" long for that reason which is a bit longer than the stock mounts.
I choose this method because I am familiar with working with CF, molds, etc. I wanted the seats to be easily mounted just like the stock ones, be adjustable back, and provide a surface that you can mount any other type of mounts to.
Sure I could have purchased CF L channel but in my case I could easily make my own.
Terry