denis.drc Posted April 3, 2012 Report Share Posted April 3, 2012 This is how I went about it.. First, I wanted a cheap vented rotor and 280zx rotors happen to be pretty cheap. I know the 280zx rotors aren't a direct fit for a 510 hub, but I had some time and felt like using some machines. Decided to make an adapter bracket out of some wheel spacers I had laying around. First drilled the spacer to have both 510 and 280zx rotor bolt patterns. Machine adapter down to the desired thickness and enlarge center bore to match 510 hub inner diameter. Quick Test Fit. Mill in reliefs for inner bolt heads. Another Test Fit. Time to start bolting things together. I know making adapters to use 280zx rotors is a bit much..but, like I said, I really wanted to use the new mill.. Now, time for the calipers.. Design and make a bracket. Last mock up. (I ended up using larger hardware. M12 over M10) Made some offset adapters to align the caliper. And the installed product. I converted my rear brakes to S13 discs & calipers in the rear at the same time. (http://community.ratsun.net/topic/41996-s13-rear-disc-conversiondone-lots-of-pics/) I also installed new wheel bearings and seals in the front. (Solid mount caliper DO NOT like worn wheels bearings...terrible pedal feel.) So far I have about 200 miles on the set-up. Balance front to back feels great. But, I plan to upgrade the master and booster in the near future. 2 Quote Link to comment
SSS510 Posted April 4, 2012 Report Share Posted April 4, 2012 VERY NICE!!!!! :thumbup: Quote Link to comment
denis.drc Posted April 5, 2012 Author Report Share Posted April 5, 2012 VERY NICE!!!!! :thumbup: Nice work! THANKS GUYS! Quote Link to comment
Guest LoneWolf Posted April 20, 2012 Report Share Posted April 20, 2012 Awesome brake upgrade!Great job. I have alot of question about this upgrade because I'm planning on doing something simlar to my 510. And thanks for posting the photos of the brake upgrade. Quote Link to comment
banzai510(hainz) Posted April 21, 2012 Report Share Posted April 21, 2012 importrp.com sells Brembo disc at a very good price 510 thru later datsuns Quote Link to comment
denis.drc Posted April 23, 2012 Author Report Share Posted April 23, 2012 Awesome brake upgrade!Great job. I have alot of question about this upgrade because I'm planning on doing something simlar to my 510. And thanks for posting the photos of the brake upgrade. PM me if you have any specific questions. I'm happy to share info.. Quote Link to comment
denis.drc Posted April 23, 2012 Author Report Share Posted April 23, 2012 I'm considering making this into a bolt-on kit. The kit would include: 2x rotors spacer adapters 2x caliper adapters If anyone is interested, I'll price out the parts.. This kit should clear 13" wheels, as I know people are running 13's on 280zxs. My concern is the caliper.. If anyone in Sac area has a 13" wheel they would like to try, I'm available for a test fit. Anyone interested? Quote Link to comment
Silky_Johnson Posted April 23, 2012 Report Share Posted April 23, 2012 I could be persuaded, pending the compatibility with 13'' wheels. What is the part number on those Wilwoods? Quote Link to comment
denis.drc Posted April 23, 2012 Author Report Share Posted April 23, 2012 I could be persuaded, pending the compatibility with 13'' wheels. What is the part number on those Wilwoods? P/N: 120-5005 But they're discontinued in the "Billet" style (I had these on the shelf from a cancelled order from years ago..). The replacement model is forged. Same exact dimensions though. New p/n: 120-6806 BTW, I'm currently running the "Polimatrix E" compound on the street..GOOD BITE. Quote Link to comment
dennis Posted May 16, 2012 Report Share Posted May 16, 2012 If you were to use 280ZX struts I would buy just the adapters to fit those wilwood calipers. Quote Link to comment
denis.drc Posted May 16, 2012 Author Report Share Posted May 16, 2012 If you were to use 280ZX struts I would buy just the adapters to fit those wilwood calipers. I'd be happy to make you a bracket. I just need a 280zx strut assembly for mock-up.. Got any buddies in Nor-Cal that want to lend me a strut assembly for a weekend? Quote Link to comment
dennis Posted May 16, 2012 Report Share Posted May 16, 2012 I'd be happy to make you a bracket. I just need a 280zx strut assembly for mock-up.. Got any buddies in Nor-Cal that want to lend me a strut assembly for a weekend? Sorry I dont. I bet you would get a few orders if you made the bracket. Quote Link to comment
Boy Blunder Posted February 8, 2013 Report Share Posted February 8, 2013 What ended up happening to the possibility of making a run of adapters etc? If not wanting to do so, could you give the specs of the machining for the wheel spacers? Quote Link to comment
denis.drc Posted February 8, 2013 Author Report Share Posted February 8, 2013 What ended up happening to the possibility of making a run of adapters etc? If not wanting to do so, could you give the specs of the machining for the wheel spacers? No one would volunteer a 280ZX upright for me to make a prototype. I'd be happy to design a bracket! :) Whoever let's me borrow a complete 280zx strut assembly to use for mock-up gets 50% off the price! Anyone interested? I'm in Sacramento. Quote Link to comment
DREWSDIME Posted February 9, 2013 Report Share Posted February 9, 2013 Im pretty sure there is a write up in an old Dime quarterly issue that shows how to make adapter to run wilwoods on 280 zx struts already, but not sure what size wheel you can run. Quote Link to comment
krecs Posted February 10, 2013 Report Share Posted February 10, 2013 PM me if you have any specific questions. I'm happy to share info.. hey the 1985 300zx oreilly part number 9842rgs is a direct replacement on that hub i just finish this setup using a z32 front calipers to fit 14 wheels check it out and save a lot of time Quote Link to comment
Skib Posted February 10, 2013 Report Share Posted February 10, 2013 as I know people are running 13's on 280zxs. most 13s will not fit on 280zx stuff. only the occasional special offset 13s fit and you still have to shave a hair off the calipers. theres a reason the factory wheel is a 14in Quote Link to comment
denis.drc Posted February 10, 2013 Author Report Share Posted February 10, 2013 most 13s will not fit on 280zx stuff. only the occasional special offset 13s fit and you still have to shave a hair off the calipers. theres a reason the factory wheel is a 14in Skib makes an excellent point. I would not assume a wheel fits unless it has been test fitted, no matter what others have found. I know 13" steel racing wheels (Arrow, Kregger, etc..) as well as a few other makes of allow wheels, fit over 280zx brakes. I've been able to fit a few different styles some with quite reasonable offsets. Additionally, the use of the custom rotor adapter/spacer I made, allows the rotor (and caliper) to sit further back towards the strut housing, away from the wheel, allowing additional clearance of the wheel drop-center. I have also not compared 280zx vs. Wilwood Dynalite vs. Z32 caliper clearance. The Wlwood Dynalite is smaller overall, the Z32 is larger. Moral of the story is MEASURE. Quote Link to comment
Skib Posted February 10, 2013 Report Share Posted February 10, 2013 more often than not 13s will not fit Quote Link to comment
bdoggs87 Posted March 7, 2013 Report Share Posted March 7, 2013 beautifully done man. wish i had the machinery you had... *sigh* Quote Link to comment
denis.drc Posted March 7, 2013 Author Report Share Posted March 7, 2013 beautifully done man. wish i had the machinery you had... *sigh* Thanks! I do love the tools at my disposal.. B) Quote Link to comment
racerx Posted March 9, 2013 Report Share Posted March 9, 2013 that's nice...... Quote Link to comment
Boy Blunder Posted March 10, 2013 Report Share Posted March 10, 2013 just to clarify from my own research, 280ZX rotors and calipers WILL fit over 13x7 American racing libres. The caliper ears need to be shaved on the corners of the caliper, but they do fit. BRE ran a custom two piece rotor with a porsche caliper under these wheels in the trans am days. I would not be surprised if the dime had an article on how to do so.. but finding a digital copy of it might prove to be a headache. FYI- the original american racing libres i am referring to were 13x7 0 offset with a 4.5 in. backspace. You guys can do the math from there to dispute what fits and doesnt fit. Quote Link to comment
El Compa_510 Posted April 14, 2013 Report Share Posted April 14, 2013 with that setup u have to sun 16' wheels correct? Quote Link to comment
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