mr_han_solo Posted March 11, 2014 Share Posted March 11, 2014 Hello,Just installed my bucket seats and now I'm looking for a way to mount my harnesses.I don't want to put a cage in it yet, as I will be street driving and auto-crossing to begin with. I am wondering if anyone makes, or has previously fabricated a crossbar that will mount in front of the shock towers in the four holes below the quarter window. See pictture:As you can see from this picture my harness is too short to mount to a shock tower brace. This picture is just showing you how short it is (55in), I would never mount it like this.:Thanks,Han Quote Link to comment Share on other sites More sharing options...
seattlejester Posted March 11, 2014 Share Posted March 11, 2014 Yes, although I only used 3 holes, and I think the other gent who did it used two? The merit of integrity is kind of debated. The holes were used to install the factory roll protection for the race chassis. So it is double thick in that area, but a harness will exert a force perpendicular to the mounting so take it as you will. Quote Link to comment Share on other sites More sharing options...
Miles Posted March 11, 2014 Share Posted March 11, 2014 (edited) ok Edited March 11, 2014 by Miles Quote Link to comment Share on other sites More sharing options...
Miles Posted March 11, 2014 Share Posted March 11, 2014 How about this: Quote Link to comment Share on other sites More sharing options...
Graphitez Posted March 12, 2014 Share Posted March 12, 2014 ok I really like your design. Quote Link to comment Share on other sites More sharing options...
johnc Posted March 12, 2014 Share Posted March 12, 2014 IRRC, The threaded 10mm mounting holes below the 1/4 window are mounting points for a factory roll bar. Pics of the 432-R and the ralley cars show mounting points there. Quote Link to comment Share on other sites More sharing options...
Tony D Posted March 12, 2014 Share Posted March 12, 2014 Yes, John is absolutely correct! They are in all the 240's for sure... Quote Link to comment Share on other sites More sharing options...
m1ghtymaxXx Posted March 12, 2014 Share Posted March 12, 2014 Interesting...anyone know if 280Z's have these threaded holes? I was planning to build a roll bar in the near future for the purposes of harness mounting, side impact and rollover protection, and bracing the rear strut towers. It seems common to mount the main hoop to the wheel tubs, but it seems near useless without hefty floor plates, something I'd like to avoid in the name of not "molesting" the chassis. Thoughts on tying the main hoop into a cross bar mounted to these holes, then braced to bolt-on floor plates on the floor behind the seat (or maybe on the rear deck), with rear stays tying into a beefy rear strut bar? Quote Link to comment Share on other sites More sharing options...
johnc Posted March 12, 2014 Share Posted March 12, 2014 The main hoop needs to mount directly to the chassis and not to a crossbar. The wheel wells are very strung structures - double walled and with a lot of support. Quote Link to comment Share on other sites More sharing options...
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