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turbogrill

Chassis rust repair/reinforcement suggestions wanted

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turbogrill    0

Hi,

 

My 280zx is pretty rusty and I race it so I should fix this.

Initially I was going to rebuild the frame rails but after some research it turns out that the rocker panels and the pillars are the important structures.

 

I am looking for some inspiration on how to reinforce the chassi. I assume many of you have done this! Pics would be great!

 

This needs to be fixed:

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post-51874-0-23489300-1475689824_thumb.jpg

post-51874-0-89412400-1475689841_thumb.jpg

 

 

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grannyknot    11

I'm with FricFrac, you need more then inspiration, you need a solid car. If that is the visible rust then the stuff you are going to find when you really start digging is going to stop you in your tracks.  Here is a Z I had before I started work on it, I thought it would be pretty straight forward,

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Here is what I really had,

post-28202-0-26726300-1475706266_thumb.jpgpost-28202-0-65841100-1475706236_thumb.jpg

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redzedturbo    0

Hey man i had this same rust ( not as bad) but in the same area at the turn up at the end of the rail. I used 18 gauge sheet and bent it using a hammer and a vice to the correct width and length the cut in the middle to fold it upward to get the bend there. Cleaning to bear metal all around the area and mig welded it in there coating with self etching primer then rust proof black rustolium rattle can. I would look for another shell as i have thought of doing many times and yours looks much worse than mine. Good luck sir.

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Nelsonian    7

I would rather rebuild a cage then try to rebuild a chassis that is that far gone. Just my preference, I suppose. 

My thoughts exactly. My S30 build has had many hidden rusted surprises that added up quite a bit. I'm sure another, better candidate can be found with a little searching. 

Edited by Nelsonian

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turbogrill    0

My thoughts exactly. My S30 build has had many hidden rusted surprises that added up quite a bit. I'm sure another, better candidate can be found with a little searching.

A new cage is like $4000, maybe half that if reusing what we have (if possible).

 

I think it would be cheaper to just add tubing under the chassis to strengthen it a bit and also cut out the holes and weld in sheet metal.

Will see what my welder says.

Edited by turbogrill

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G-Tech    4

I didn't have it that bad but I had the same spots. I bent up sheet metal and replaced part of the rails. the corner part was for sure the trickier part but just piece by piece replaced it all. at some point I tell myself to stop looking and start doing. I did do afterwards frame ties out of stainless 1x3. welded it to the front frame rails, welded along the bottom of the car and made a piece that went up to the rear subframe and welded to that, that would help you a lot. hope this helps

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post-24014-0-29617800-1477499436_thumb.jpg

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