PPIGT2 Posted February 22, 2010 Author Share Posted February 22, 2010 I haven't posted in a while.Been so busy with work then all the snow in Pittsburgh. No major updates. Car is on the rotisserie. Floor pans being removed and I did get a nice gift from my parents for Xmas. Arizona Z car is some pretty sweet stuff. Just need to get the coilovers and brakes and I'll be set. Spend the last couple of days scraping off the under coating...What a pain. Like my dad said Weight is horsepower so get to scraping. Will follow with more updates sorry about the delay. Quote Link to comment Share on other sites More sharing options...
zlalomz Posted June 7, 2010 Share Posted June 7, 2010 Your dad's old car has resurfaced and is now back in the hands of Joel Anderson. He has it for sale so hmmm, maybe I could sell one of my kids. Quote Link to comment Share on other sites More sharing options...
GrenadeZ Posted June 7, 2010 Share Posted June 7, 2010 This is a really cool thread. My dad had three z's and I guess all those years of having my car seat bungeed down in the cargo area made me really want one! Good luck with your build, Ill be following. Quote Link to comment Share on other sites More sharing options...
PPIGT2 Posted April 23, 2012 Author Share Posted April 23, 2012 Finally back to work on the Z. Had about a 2 year delay since my last post. Car is at the body shop getting all the welding done and sand blasted. Should be there for a couple of months. One of our customers is doing all the work. Hope do have all a roller by August with all the brake and suspension done. Trying to decide on the Mckinney or AZC suspension. Have all the other suspension stuff from AZC so i will probably go that route. Will update with pics when i get some. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted April 23, 2012 Share Posted April 23, 2012 (edited) You'll be pleased to know that I'm quite positive there is no drive train part that is equally or more complicated than the STi. I raise you a Mitsubishi 3000gt vr-4 I wonder if Bob Lentz still has his GT2 inline 6s now that he went to a VQ in his GT2 car. The guys who used to run Datsun Dynamics might have a line on engines already built or can build a gt2 engine. Thier current enterprise is auto expectations in sterling, VA. http://www.facebook.com/pages/Auto-Expectations/10150113583150347?sk=wall&filter=12 Edited April 23, 2012 by HowlerMonkey Quote Link to comment Share on other sites More sharing options...
PPIGT2 Posted April 30, 2014 Author Share Posted April 30, 2014 Project update. Car still in progress. Cage fully assembled and welded. Ordered body kit from reaction research. Will continue to update. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted April 30, 2014 Share Posted April 30, 2014 Who are you running with? That doesn't look like it fits the ruleset of SCCA or NASA. Might be able to get a tech inspector to sign off on it anyway. Quote Link to comment Share on other sites More sharing options...
PPIGT2 Posted May 1, 2014 Author Share Posted May 1, 2014 Its not for door to door racing.(could change) I will be doing a few time trials and some auto cross, Pittsburgh has a pretty big vintage Grand Prix they run out here. What do you see that could be a problem? Quote Link to comment Share on other sites More sharing options...
JMortensen Posted May 1, 2014 Share Posted May 1, 2014 The lack of a one piece diagonal from the floor to the main hoop over the driver's head and the door bar. Quote Link to comment Share on other sites More sharing options...
m1ghtymaxXx Posted May 2, 2014 Share Posted May 2, 2014 (edited) The fabrication work on the cage looks like it's well executed, however in addition to Jon's comment, I see some other design flaws. To the best of my knowledge the crumple zone's should not be reinforced as they are critical to dissipating energy in a collision. Even more trouble is that the bottom of the rear stays tie into the bars connecting the rear strut towers to the rear of the car. It seems to me that if the car were to be hit from the rear, rollover protection could be instantly compromised. I have seen rally cars built with some reinforcement at the front to preserve the unibody in colision and allow the car to keep competing, but that still carries the same safety issues. Also what is the purpose of the loops of bar stock welded to the harness bar? Surely those aren't meant to be the harness mounting points... Edit: Jon, just looking the NASA (rally) roll structures spec, it seems that configuration should be allowed. Unless I'm looking at the photos wrong, it looks to match configuration mrc-4 in diagram 2.1: http://www.nasarallysport.com/rules-forms/2012-NASA-Rally-Sport-GRR-Appendix-B.pdf I seem to recall FIA allowing the same layouts, haven't looked into SCCA As well, by that spec the structure can extend beyond the front and rear strut towers, justified as a measure to protect a fuel cell, but I've always seen such a thing done as a standalone structure. I'd would be very hesitant to use such a structure as a foundation for the rear stays, especially where it makes a ~60 degree bend right before the footplate. Edited May 2, 2014 by m1ghtymaxXx Quote Link to comment Share on other sites More sharing options...
JMortensen Posted May 2, 2014 Share Posted May 2, 2014 The fabrication work on the cage looks like it's well executed, however in addition to Jon's comment, I see some other design flaws. To the best of my knowledge the crumple zone's should not be reinforced as they are critical to dissipating energy in a collision. Even more trouble is that the bottom of the rear stays tie into the bars connecting the rear strut towers to the rear of the car. It seems to me that if the car were to be hit from the rear, rollover protection could be instantly compromised. I have seen rally cars built with some reinforcement at the front to preserve the unibody in colision and allow the car to keep competing, but that still carries the same safety issues. Also what is the purpose of the loops of bar stock welded to the harness bar? Surely those aren't meant to be the harness mounting points... Edit: Jon, just looking the NASA (rally) roll structures spec, it seems that configuration should be allowed. Unless I'm looking at the photos wrong, it looks to match configuration mrc-4 in diagram 2.1: http://www.nasarallysport.com/rules-forms/2012-NASA-Rally-Sport-GRR-Appendix-B.pdf I seem to recall FIA allowing the same layouts, haven't looked into SCCA I'm sure the loops are just to keep the belts from sliding around on the larger bar. SCCA has some weird rules, I'm sure the cage is strong enough with the diag as it is, but it is technically not correct. Door bars would need some work but you can work with what is there already, don't have to cut that stuff out to fix it. I totally agree with you about the tubes that go all the way out to the ends of the car. Unnecessary and less safe, particularly in the rear as you said. I do think that a tech inspector would probably let it go though, if they let Mike Kelly's go. I believe he said an inspector signed off on his. Quote Link to comment Share on other sites More sharing options...
PPIGT2 Posted May 6, 2014 Author Share Posted May 6, 2014 Just a footnote: two additional door bars are being added as well as a jacking point. We agree about the diagonal bar, however this design has been used on many cages that have all passed tech. The cage was actually built by a former Nissan Off-Road team fabricator. 1 Quote Link to comment Share on other sites More sharing options...
mattster03 Posted May 10, 2014 Share Posted May 10, 2014 Just curious, how much does a full body sand blast job cost? Quote Link to comment Share on other sites More sharing options...
johnc Posted May 11, 2014 Share Posted May 11, 2014 Need double door bars or an "X". The rear main hoop braces must end at a chassis attachment point, not on another tube. That will fail NASA, SCCA, VARA, HSR West, and NHRA tech. It's a really bad idea. A rear impact that bends the bars going to the back of the car will bend the stays and possibly move the main hoop. Who is the fabricator? I know a bunch of the NPTI, T-Mag guys. Remember, off-road roll cage design is based on single vehicle wrecks. Road race cage design is based on multiple vehicle wrecks. Quote Link to comment Share on other sites More sharing options...
Chris Duncan Posted May 11, 2014 Share Posted May 11, 2014 If it's not too late I would fix the cage to make it SCCA NASA compliant. It's much easier to do it now than later. Why go to all this trouble without making it fully usable? Why hold back it's potential? It may cost more to correct but it should have been done right in the first place, at that point it wouldn't have cost any more. Quote Link to comment Share on other sites More sharing options...
Gmanhotrod62 Posted December 26, 2017 Share Posted December 26, 2017 Hey me too same project.... Quote Link to comment Share on other sites More sharing options...
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