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rayaapp2

Persephone '81 280ZX

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It looks like I need to modify the floor pan for the front diff mount hoop to clear, and both upper control arm mounts. I need to do some measuring to see if the floor pan is the same heights at the mounts for the S13 frame, and modify the new mounts to make the difference up. I did take some pictures from the front view and the frame is currently about 2" from seated to the chassis floor pan, and it appears the frame is clear of the ground(will not hang lower than the frame rails, which is what I was worried about after reading this 260DET? Im not sure how low you would have to be, to be concerned with sub frame height if the rails have the same or less ground clearance? Really wish you guys had some pictures... would go a long way!

 

Transplanted a rear S14 subframe assembly years ago for a race two seater S130 and the biggest problem by far was not being able to get the assembly high enough. It's a race car so low is good but it's not a disaster, it's done quite a few laps and drives great. 

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18595493_1519157438103626_3855353714077518582605_1519157501436953_6592410226216718623483_1519157534770283_79935942238645

 

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Playing around with geometry on the spare pan and subframe

 

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So I dont know about you all, but putting a nice seat in this car and having adequate leg room is an issue.

So Im removing the old sub frame box frame, since Ill be installing a new box frame further back... What a pain to get all those spots out, I gave up on the spot weld drill bits and just started going at it with the plasma cutter... 

18595613_1519157741436929_29827306121189

 

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I actually didn't have a problem with leg room, I had an issue with how high the seat was with the slider. I want to try to hard mount it to lower it.

 

Also it looks like you have to relocate the giant sub frame bolts also. and maybe shorten some of the suspension pick up points? 

 

Also I'm assuming you're going with a smaller fuel cell? or will the stock tank fit? 

 

Lastly, thanks for the great pics, this is the most documentation on this I think anyone has ever done. Some of the pics from the first few posts don't seem to show up anymore though. 

Edited by BluDestiny

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I actually didn't have a problem with leg room, I had an issue with how high the seat was with the slider. I want to try to hard mount it to lower it.

 

Also it looks like you have to relocate the giant sub frame bolts also. and maybe shorten some of the suspension pick up points? 

 

Also I'm assuming you're going with a smaller fuel cell? or will the stock tank fit? 

 

Lastly, thanks for the great pics, this is the most documentation on this I think anyone has ever done. Some of the pics from the first few posts don't seem to show up anymore though. 

 

Yeah, Im knocking that floor back a couple of inches. I spent a few hours cutting up mounts and stuff on the mockup floor. Now I have a good idea where to cut, once I get it squared on the floor pan, Ill jig up some alignment mounts to transfer to my car. What was interesting is the stock S13 brackets that go over the front mount bolts to the floor pan, are nearly identical to what I need if mounted to the outside holes on the ZX floor... But the old box frame isnt needed to mount the sub frame. Ill be cutting it up and moving it back just far enough to mount the interior compartment floor that holds the speakers and stowage bins. Its needed for rigidity between the rockers and floor pan so it cannot just be removed completely.

 

I have plenty of room for the stock tank, and Ill be leaving in the center of the rear box frame that has the tank strap mounting holes. The one hangup I dont know about yet, is how I will run the exhaust. Retaining the heat shields is my goal, but Ill play that game when I get mounted up.

 

The pictures are hosted on my facebook page. Its public, so anyone should be able to veiw them. Interesting that the links arent working, but Id suspect its a connection issue with as big as these pictures are. Datsunmotorsports 

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