James@SPE Report post Posted March 11, 2014 SP Engineering introduces our 100% bolt-in roll bar for your R35 GT-R. This roll bar features a 1-5/8” thick tubing and .083” wall thickness made from mandrel bent 4130 chromoly with heliarc welded construction. No modifications is necessary to the rear seats. All hardware and backing plates are included. SP Engineering Roll Bar Nissan R35 GT-R Years: 2009 - 2015 Part #: R35-ROLLBAR $1999.00 Quote Share this post Link to post Share on other sites More sharing options...
Destructo Report post Posted March 12, 2014 That quite impressive. Do you have a percentage rate of how much the cage increases the chassis rigidity when installed? Quote Share this post Link to post Share on other sites More sharing options...
James@SPE Report post Posted March 12, 2014 That quite impressive. Do you have a percentage rate of how much the cage increases the chassis rigidity when installed? To be honest, I don't even know how to get a measurement like that but I will ask the techs and fabricator to see if they would have any quantitative data. The fabricator has been doing roll cages and custom fab for race applications for decades and is tried and true in the industry. The cage was fabbed and "jigged" on a bare GTR interior so fitment is 100% perfect. Quote Share this post Link to post Share on other sites More sharing options...
MaciekR Report post Posted June 15, 2014 To be honest, I don't even know how to get a measurement like that but I will ask the techs and fabricator to see if they would have any quantitative data. The fabricator has been doing roll cages and custom fab for race applications for decades and is tried and true in the industry. The cage was fabbed and "jigged" on a bare GTR interior so fitment is 100% perfect. You either need data from previously collected FEA and then you simulate the torsional stiffness, or you experimentally determine the torsional stiffness by using linear screw-jack actuators and apply vertical deflection in gradual increments while using load cells. Quote Share this post Link to post Share on other sites More sharing options...
05LSV Report post Posted June 15, 2014 You either need data from previously collected FEA and then you simulate the torsional stiffness, or you experimentally determine the torsional stiffness by using linear screw-jack actuators and apply vertical deflection in gradual increments while using load cells. Hhuhuhhh. He said linear screw-jack actuators. Quote Share this post Link to post Share on other sites More sharing options...
kazsak Report post Posted July 4, 2014 looks great guys Quote Share this post Link to post Share on other sites More sharing options...
jhbchess Report post Posted July 4, 2014 no lambo love. fcuk. Quote Share this post Link to post Share on other sites More sharing options...
HannibalACP82 Report post Posted July 14, 2014 You either need data from previously collected FEA and then you simulate the torsional stiffness, or you experimentally determine the torsional stiffness by using linear screw-jack actuators and apply vertical deflection in gradual increments while using load cells. Screw that....flip a GT-R without the cage and then flip one with the cage. That would be way more fun! Quote Share this post Link to post Share on other sites More sharing options...
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