Gus 5 Report post Posted October 10, 2007 any done this as a 4 stud rear brake upgrade? discs seem around £40 each (z1) and are the same diameter as e30 m3 rear discs. E30 M3 calipers a little bit harder to come by, but i am sure i can find some 2nd hand over here. thoughts please...could someone also get a quote from BMW on Z1 rear discs, whether i can get them in NZ or should get em here should match quite nicely a wilwood or better ($$ depending) front brake setup Quote Share this post Link to post Share on other sites
pureboiracer 0 Report post Posted October 10, 2007 whats the difference between the z1 discs and the stock ones? and whats the diff in calipers too? Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted October 11, 2007 they are bigger...calipers need to change to match Quote Share this post Link to post Share on other sites
PJWO 2 Report post Posted October 11, 2007 Hay Gus, Checked my books we have never had a listing for the rear of Z1. If you decide to go ahead with the conversion it may pay to bring those discs back with you. Paul Interpart. Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted October 11, 2007 cheers Paul, might get in touch with the main dealer, they can order stuff from germany found a listing here: http://www.carparts-direct.co.uk/Brake_Dis...d_Pads_Rear.cfm not £ at all! Quote Share this post Link to post Share on other sites
PJWO 2 Report post Posted October 11, 2007 cheers Paul, might get in touch with the main dealer, they can order stuff from germany found a listing here: http://www.carparts-direct.co.uk/Brake_Dis...d_Pads_Rear.cfm not £ at all! Just checked that cataloge the rotor they have listed for Z1 is the std rear e30 rotor?See Below I know the M3 is bigger but that is 5 stud (also hard to get in after market many$$$) Hmmmm Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted October 11, 2007 thats odd: Engine Size Year Diameter Thickness Height Bore Stud Holes Type Price Part Number Z1 2.5 SPIDER 88-92 258 10 60 62 4 Solid 36.96 RS7947 3 SERIES (E30) M3 2.3, 2.5 82-92 283 12 65 75 5 Solid 89.96 RS3357 3 SERIES (E30) 316, 318, 324D (SOLID) 83-95 258 10 60 62 4 Solid 36.96 RS7947 from same site btw FRONTS: EngineSize Year Diameter Thickness Height Bore Studs Type Price per pair Part Number Z1 2.5 SPIDER 88-92 260 22 35 66 4 Vented 40.96 RS4316 3 SERIES (E30) M3 2.3, 2.5 82-92 280 25 40 79 5 Vented 106.96 RS3356 3 SERIES (E30) 316, 318, 320, 323, 324D, 324TD, 325 (VENTED) 83-95 260 22 35 66 4 Vented 40.96 RS4316 i must be going mad i am sure yesterday the M3 and Z1 had the same am keen for it as 4 lug is much easier to stay, esp if there is a decent brake upgrade like this my source: http://www.e3024v.com/board/index.php?topic=28.0 Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted October 11, 2007 http://bmwfans.info/ this site is great, online ETK. does list the size for e30 discs, but not z1! dicks Quote Share this post Link to post Share on other sites
Mike 1 Report post Posted October 11, 2007 (edited) the Z1 rear are 280x10, other option is 325iX tourings which are 258mm but ventilated, need to change a few other bits to make the iX stuff work though. e30.de has all the info here ya go: http://translate.google.com/translate?u=ht...Flanguage_tools also, e30 M3 calipers are the same as E32 735 or 730 but the carriers are E30 M3 specific. Edited October 11, 2007 by Mike Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted October 11, 2007 (edited) legend sounds pretty easy..parking brake works as normal? trying to get hold of e30 m3 calipers here, will get extra if i can! might even test the system if i can get an iS euro tourer! edit: and what do you mean by the carriers different?? so its a different caliper? i can imagine those would be easy to come by Edited October 11, 2007 by The Gus Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted October 11, 2007 part numbers the same?? only 177 euro each brand spanking..not bad at all! Quote Share this post Link to post Share on other sites
Mike 1 Report post Posted October 11, 2007 Part no's for the actual caliper with the pistons are the same for Z1 and E32, but the carrier/bracket that the caliper slides on is different. Maybe the E32 carrier could be adapted easily enough? PM'd ya too. Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted October 11, 2007 right, hmm, they have diff part numbers too e30 m3 it is...if only i could find a whole one.. Quote Share this post Link to post Share on other sites
Mike 1 Report post Posted October 24, 2007 Gus - called the $tealer and z1 rears retail for $180NZ + GST, ex germany of course. BMW club would get a bit off this, maybe able to get them down even more if there was a few of us? part no is 34211160402. posted it up as i figured there might be a few more curious about this. Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted October 25, 2007 would prob end up $180ish each as the % off tends to be around GST thats pretty good, i think stock rears are around $150? just a problem finding the calipers...its not the easiest thing to come across! Quote Share this post Link to post Share on other sites
