cobraz240z Posted December 9, 2003 Share Posted December 9, 2003 i have a 1971 240z i drilled the fire wall use the 280z style booster is ther a better one i could but i have 12inch rotors up front with 300zx tt four pots and 12inch rear with 300zx tt 2 pots and a willwood proportioning valve what brake booster and brake master cylender from a newer car would work Quote Link to comment Share on other sites More sharing options...
blueovalz Posted December 9, 2003 Share Posted December 9, 2003 dazed and confused My brake system is only slightly smaller than you are using, and the 280 booster works very well. Are you needing better performance from your booster or are you wanting to try another type of booster and MC? Quote Link to comment Share on other sites More sharing options...
cobraz240z Posted December 10, 2003 Author Share Posted December 10, 2003 i dont have a boster on the car yet since im puting it together im just wanting to do everything right the first time do you think a 280zx booster and master cylender wood work? Quote Link to comment Share on other sites More sharing options...
auxilary Posted December 10, 2003 Share Posted December 10, 2003 uh, punctuation? Quote Link to comment Share on other sites More sharing options...
Guest 240hybrid Posted December 10, 2003 Share Posted December 10, 2003 If you do a search you'll find some great info. on this subject of MCs and boosters. The later 280zx uses the 15/16 MC if I'm not mistaken, but I have no problems with the 7/8" MC and a later 75 Booster. I have heard the 280zx booster is a bit large and modifications are required. Chase Quote Link to comment Share on other sites More sharing options...
blueovalz Posted December 10, 2003 Share Posted December 10, 2003 This is correct. The early 240, as I best recall, used a small booster, and replacing it with a 280 booster will work, but places the edge of the booster within about 1/4" of the clutch MC (at least on my application). The ZX is even larger in diameter, which would then interfere with the clutch MC. The choice of the brake MC bore diameter may depend on the caliper bore cross-section of the OEM calipers verses their replacement (4 puck Nissan in your case). If the cross-section is larger on the replacement calipers, then replacing your MC with a larger bore will help return the OEM "feel" to the brakes. Other than the ZX MC swap, I've not heard of any other being used. Quote Link to comment Share on other sites More sharing options...
cobraz240z Posted December 11, 2003 Author Share Posted December 11, 2003 thanks terry my car is going to be automatic so i think the bigger one would work thanks i also was wondering do you think a automatic car would make a good road car like a road race car or imsa Quote Link to comment Share on other sites More sharing options...
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