d3c0y Posted January 27, 2014 Share Posted January 27, 2014 Quote Link to comment Share on other sites More sharing options...
zcar63 Posted January 30, 2014 Author Share Posted January 30, 2014 Hi Guys i have all the parts ordered for a couple of sets,should be arriving soon.I have been reading a thread on rear swaybar location, do the different mounting positions of the swary bars, ie 240z, 260z, 260 z 2+2 models still line up with the lower arm drop link locating holes.? I would hate to make the mounting holes the same as my 240z only to find they don't line up for other models. If anyone can let me have a gander at other cars on Brissy north side to confirm. Cheers David Quote Link to comment Share on other sites More sharing options...
dat2kman Posted January 30, 2014 Share Posted January 30, 2014 Welcome to come have a look at mine! In The Gap Quote Link to comment Share on other sites More sharing options...
zcar63 Posted February 11, 2014 Author Share Posted February 11, 2014 Hi Guys I had to go away for a few days which has put me behind,only to come back home and partially dislocate my knee (S@#T) I'll be burning the midnight oil i think Cheers David Quote Link to comment Share on other sites More sharing options...
lampy Posted February 11, 2014 Share Posted February 11, 2014 What filler rod have you chosen to weld these together? Are they to be stress relieved after welding? Quote Link to comment Share on other sites More sharing options...
cracker Posted February 13, 2014 Share Posted February 13, 2014 I'm also interested in a set - how much will you be charging? Quote Link to comment Share on other sites More sharing options...
zcar63 Posted February 14, 2014 Author Share Posted February 14, 2014 Hi Lampy 4130 tube doesn't have to be stress relieved if tube is no more than 0.120 thou wall ,using er70-s2 rods.I'm not getting much time to work on them latley with a bung knee :'(.Trying my hardest to get some done. Cheers David Quote Link to comment Share on other sites More sharing options...
zcar63 Posted February 16, 2014 Author Share Posted February 16, 2014 Hi Guys i have a set of lower arms ready,here is some more info on the construction.All tube is 4130 chromoly,WELD IN INSERTS ARE 4130 chromoly, gussets are 4130 chromoly, the flange that the bushes thrust against are mild steel(5mm) the bracket for the adjustment arm is mild steel , the 16mm bolt is high tensile steel which i have drilled a through hole 9mm and cut to length and threaded m16 x 1.5 with a nyloc nut , or you can use your bolt of choice .The spindle pin is 4140 chromoly and approx 40mm shorter than standard,i will purchase bolts for this purpose in the future. The control arm has two (RH) rod ends and one (LH) rod end.The adjusting arms has one (RH) and one (LH) rod end,the left hand weld- in insert has two small notches cut in the edge to identify it,the (LH) nut has a notch around the edge as well .I have chased rod end suppliers all around the world a couple referred me to the local distributors who's quotes sometimes were interesting IE:26 x rod ends from local $98.23= $2554.24 plus freight and another was $55.00 each x 26= $1430 plus freight .The ones i am using came direct from overseas, they are dearer than one other supplier i was hoping to use, but he doesn't make 16mm fine thread at the moment. I will take them to work next week and get an accurate weight . Any questions ,don't hesitate to ask.Just a note,i am using chromoly weld in inserts as i don't see much point welding in mild steel inserts into the tube for them to become a possible weak point. Cheers David Quote Link to comment Share on other sites More sharing options...
Riceburner Posted February 16, 2014 Share Posted February 16, 2014 Wow, nice work they look fantastic! PM sent. Quote Link to comment Share on other sites More sharing options...
d3c0y Posted February 16, 2014 Share Posted February 16, 2014 Have you done a weight comparison with the stock arms yet? Quote Link to comment Share on other sites More sharing options...
zcar63 Posted February 17, 2014 Author Share Posted February 17, 2014 Hi Guys/Gals I weighed the arms old and new last night at work.The stock arm i weighed was 4.7kg each , and the Weight Watchers brand with extra fibre comes in at 3.64kg each = 7.28kg for the pair with rose joints Cheers David Quote Link to comment Share on other sites More sharing options...
d3c0y Posted February 17, 2014 Share Posted February 17, 2014 Nice, just one last question - when will mine be arriving in the post? I ordered it weeks ago! Quote Link to comment Share on other sites More sharing options...
zcar63 Posted February 18, 2014 Author Share Posted February 18, 2014 Hi guys/gals i have a question for those better informed than me.I weighed one of my OEM rear lower control arms on certified scales at work,it came in at 4.74kg each .I then weighed another arm from a spare pair of arms i have under the bench and got 4.64kg .Another member here has one which is 3.6 kg, does this come from a specific model?or year of manufacture? Cheers David Quote Link to comment Share on other sites More sharing options...
d3c0y Posted February 18, 2014 Share Posted February 18, 2014 I'm guessing the light ones are probably 240z possibly a series 1 and later ones are 260z. Do they look the same? Quote Link to comment Share on other sites More sharing options...
PeterAllen Posted February 18, 2014 Share Posted February 18, 2014 David Here are a couple of snaps of the arm I weighed. One of the arm itself, just to ensure we are weighing the same item/components, and one of it sitting on the scales at 3.7kg. I calibrated (for want of a better word) the scales with some groceries and they seemed close enough. The arms appear to be pressed from 2mm sheet and the large support brace and roll bar location point appears to be pressed from 1.5mm sheet. I can't say for sure it is off my 3/72, 240Z as I've mixed and matched them over a period of time. Quote Link to comment Share on other sites More sharing options...
mossy Posted February 19, 2014 Share Posted February 19, 2014 I weighed both my rear control arms and they came in at between 3.7 and 3.8 kg ea, dont know how accurate my scale is though, its one of those small hanging digital scales off ebay. Quote Link to comment Share on other sites More sharing options...
Scoota G Posted February 19, 2014 Share Posted February 19, 2014 I just weighed a 260Z 2+2 a-arm which is 5Kg but still has rubbers, the big inside bolts and rubbers on it. Quote Link to comment Share on other sites More sharing options...
zcar63 Posted February 19, 2014 Author Share Posted February 19, 2014 Hi Peter/scoota My z is a 71 model the arms on mine might be off a later model then.The NEW ones i have are as light as yours Peter,but i now have adjustment and saved 2.2kg in weight over my old arms.That means 2.2kg less dieting i have to do,pass me another beer will you!!! Quote Link to comment Share on other sites More sharing options...
lampy Posted February 21, 2014 Share Posted February 21, 2014 Sound good for the welding rod. I hear quite a lot people welding with 4130 rods and not stress relieving/normalizing. ER70 s2 or erw80 s2 are the rod of choice without heat treatment. On a side note i hope your not using 4.6 grade bolts anywhere. 4.6 grade are garden grade bolts. Quote Link to comment Share on other sites More sharing options...
zcar63 Posted February 25, 2014 Author Share Posted February 25, 2014 Hi Gareth Great photo of the arms on your build thread.I need a better camera Cheers David Quote Link to comment Share on other sites More sharing options...
Riceburner Posted February 25, 2014 Share Posted February 25, 2014 I'll put some pics up here too David Very happy! Thanks again Quote Link to comment Share on other sites More sharing options...
Riceburner Posted February 26, 2014 Share Posted February 26, 2014 Hi David, Here they are in all their glory It's only the 'camera+' app on an iphone 4s, seems to do ok for all I need. Quote Link to comment Share on other sites More sharing options...
zcar63 Posted March 8, 2014 Author Share Posted March 8, 2014 Hi Guys Still beavering away with the arms,i can now get them electroplated or powder coated,the plating is slightly dearer than powder coating. Cheers David Quote Link to comment Share on other sites More sharing options...
d3c0y Posted March 12, 2014 Share Posted March 12, 2014 I now have mine and they look pretty awesome! Big thanks to David for his top efforts and excellent service. Everyone who wants them should definitely get in while they're hot! Quote Link to comment Share on other sites More sharing options...
Retro Z Posted March 12, 2014 Share Posted March 12, 2014 How much are they? Quote Link to comment Share on other sites More sharing options...
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