clarkspeed Posted April 4, 2015 Share Posted April 4, 2015 I saw this ad from QA1 in my new Circle Track magazine. They are now building a inverted strut for the fox body Mustang that is fully rebuidable or can be ordered sealed. I took a picture of the ad since there is not much info on the internet about it except for a video from SEMA. Anyway, looks on the surface like something that could be adapted over to an S30 spindle. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted April 5, 2015 Share Posted April 5, 2015 Saw those. 46mm pistons, looks like they're pretty Bilstein-like in their construction. Could be an interesting option. Quote Link to comment Share on other sites More sharing options...
tube80z Posted April 6, 2015 Share Posted April 6, 2015 The QA-1 struts are in their new catalog you can download. It doesn't show any info about parts that fit. I'm guessing it uses the same parts as the other 46 mm double-adjustable shocks. They look like a decent option assuming there are valving options available. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted November 4, 2015 Share Posted November 4, 2015 Found this today when I was trying to justify putting BC coilovers on my extra 240z. Looks like the BC's use 46mm pistons and can be rebuilt with Bilstein pistons! Might be a great option for those that want more valving options than are available on the P30-0032 dampers. http://www.clublexus.com/forums/gs-1st-gen-1993-1997/770149-diy-shock-revalve-parts-1-3-a.html Quote Link to comment Share on other sites More sharing options...
tube80z Posted November 9, 2015 Share Posted November 9, 2015 Nice find. Having taken apart Bilsteins and my Penskes you can see a very big difference between the quality of the pistons compared to the BC shocks. Penske have a lot of pistons available in 46 mm that are available as castoffs on ebay from NASCAR teams. Swapping the pistons would be a nice performance upgrade. Cary Quote Link to comment Share on other sites More sharing options...
JMortensen Posted November 10, 2015 Share Posted November 10, 2015 Are the bc's are built as a shock or a strut? I know I've seen damaged shocks that were used as struts. That would be a big problem. The dyno sheets looked really good though so it would be tempting to get them and rebuild if they could handle the loads. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted November 12, 2015 Share Posted November 12, 2015 As a reference point this guy has the standard length BC coilovers on his 240z adjusted all the way down with 7kg front / 6kg rear springs. They offer a "extreme low" version with shorter struts that I will likely get since I'm running 17's. https://www.instagram.com/themattway/ Jon, I'm not sure if they are built as a shock or strut. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted November 13, 2015 Share Posted November 13, 2015 Ended up ordering the Extreme Low kit with 7kg/6kg standard springs front/rear for my 1972 240z. I'll post my findings when I receive them and get them installed around Christmas! Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted December 29, 2015 Share Posted December 29, 2015 (edited) Received the BC coilovers in the "extreme low" variety for my 240z. Does anyone want the dimensions of the components before I have them installed next week? I can rough them out in Solidworks if there is an interest. Edited December 29, 2015 by JustinOlson Quote Link to comment Share on other sites More sharing options...
88dangerdan Posted December 29, 2015 Share Posted December 29, 2015 Hey Justin, tried sending you a pm. But for some reason it wouldn't let me. Could you try and send me one labeled "measurements" when you get a chance. Thanks Daniel Quote Link to comment Share on other sites More sharing options...
Geno750 Posted December 29, 2015 Share Posted December 29, 2015 I'd really be interested in knowing the thread size and pitch of the rear housing. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted December 29, 2015 Share Posted December 29, 2015 (edited) The threads on the coilover body are M53x2.0. Cleared out my inbox btw. Edited December 29, 2015 by JustinOlson Quote Link to comment Share on other sites More sharing options...
arck001 Posted January 8, 2016 Share Posted January 8, 2016 Received the BC coilovers in the "extreme low" variety for my 240z. Does anyone want the dimensions of the components before I have them installed next week? I can rough them out in Solidworks if there is an interest. I would like to know the dimensions! I've been wanting to switch coilovers and was looking at these. Quote Link to comment Share on other sites More sharing options...
trackzpeed Posted January 10, 2016 Share Posted January 10, 2016 Hey Justin, any feedback on your bc coilovers? Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted January 20, 2016 Share Posted January 20, 2016 (edited) I'm having the sleeves welded on today. I hope to have the coilovers on the car this weekend. Dimensions for my 240z Extreme Low BC coilovers from the bottom of the sleeve to the top of the camber plate are as follows: Maximum Length: Front: 19-13/16" Rear: 21-9/16" Minimum Length: Front: 17-7/16" Rear: 19-3/16" Edited January 20, 2016 by JustinOlson Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted January 20, 2016 Share Posted January 20, 2016 (edited) Here is a rough Solidworks file of the weld on threaded collar from BC for the 240z. BC 240Z COLLAR.zip Edited January 20, 2016 by JustinOlson Quote Link to comment Share on other sites More sharing options...
Banshee_240Z Posted March 22, 2016 Share Posted March 22, 2016 Hey all, first post. I think I've gotten the Bilstein 34-050224 (3000GT) to work with 280z struts using using a cast aluminum gland nut from a Gabriel shock machined to fit the larger Bilsteins. I had my friend do the machining. He also had the old Gabriel gland nuts sitting in some old struts. I'll have to order more when I do the fronts. With Ground Control coilover kit and DP racing camber plates. If everything goes right the rears should be in tomorrow. It will be a few months before the fronts are in because I go to school in Washington (And that's where I'm doing the machining and sectioning and welding) but my Z stays home in California and I only had time to do the rears before I came home for break. Quote Link to comment Share on other sites More sharing options...
johnc Posted March 22, 2016 Share Posted March 22, 2016 You should have a wiper seal on that gland but. It's not 100% required because that's the shock body (Bilsteins are an inverted shock) but you can get dirt into the internal seal and slowly wear that out. Quote Link to comment Share on other sites More sharing options...
Banshee_240Z Posted March 24, 2016 Share Posted March 24, 2016 Thank you for the advice. I ended up pressing the stock Bilstein gland nut over the new gland nut (after it was torqued down) as a sort of hat with wiper seal. Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted March 24, 2016 Share Posted March 24, 2016 How are you keeping it from floating? Also did you section your strut housings Quote Link to comment Share on other sites More sharing options...
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