TomoHawk Posted January 30, 2004 Share Posted January 30, 2004 When you upgrade the master brake cylinder in your 78 280Z, which master cylinder from a 280ZX should you use? Is there a difference? thx. Quote Link to comment Share on other sites More sharing options...
GAZRNR Posted January 30, 2004 Share Posted January 30, 2004 1979-1981 Quote Link to comment Share on other sites More sharing options...
blueovalz Posted January 30, 2004 Share Posted January 30, 2004 GAZRNR is correct. The difference is in the mounting of the MC. The later years moved to a horizontal stud pattern which requires some slight modifications to bolt it on. I've used both, and the earlier one is easier. Quote Link to comment Share on other sites More sharing options...
ecp48 Posted January 30, 2004 Share Posted January 30, 2004 Just a comment, I just bought a rebuilt unit at Autozone for 39.99 + core, Pep Boys wanted 157.97! Number is Fenco #M51837. Hope it helps. ecp48 Quote Link to comment Share on other sites More sharing options...
TomoHawk Posted January 30, 2004 Author Share Posted January 30, 2004 Maybe I can get my bud at the service place to swap/upgrade it for me. He doesn't mind if I supply the parts, maybe he'll get me a ZX M.C. for my 280Z. I gotta wait for spring first. Quote Link to comment Share on other sites More sharing options...
Dan Baldwin Posted January 31, 2004 Share Posted January 31, 2004 Be aware that going to the larger 15/16" m.c. will increase the effort required at the pedal for a given level of braking by 15%. I put the 7/8" MC back in my car, I could feel the firewall flex under the pedal effort required at the track with the ZX m.c. I do have smallish (stock z and ZX) brakes, though. Quote Link to comment Share on other sites More sharing options...
TomoHawk Posted February 1, 2004 Author Share Posted February 1, 2004 Right now I still have the original braking system on there, but I thought I would upgrade instead of rebuilding the m.c. Quote Link to comment Share on other sites More sharing options...
Guest LAYTON Posted February 1, 2004 Share Posted February 1, 2004 hey dan when you say stock z and zx brakes what combo are you using ? Quote Link to comment Share on other sites More sharing options...
240Z_Master Posted March 6, 2004 Share Posted March 6, 2004 So what about having a 1981 280ZXT MC into a 1970 240Z? Anyone done this? fitment? etc.. Quote Link to comment Share on other sites More sharing options...
Ben Posted March 7, 2004 Share Posted March 7, 2004 The early MC is a bolt on for all S30-series cars. But you may find that the lines are reversed. You should correct this by bending your tubing to suit. Another thing worth mentioning is that you may need to swap residual valves over from your old MC to the new one, as the 280ZX is a 4-wheel disc setup. For those who want a 1" MC I used JB1419 from a Nissan Patrol - lines reversed, valves removed, it firmed up my pedal just nicely with my LN65 Hilux/ R31 Skyline brake setup (soon to be R33 Skyline/R31 Skyline). Quote Link to comment Share on other sites More sharing options...
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