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Irv83
PostPosted: Fri Apr 16, 2010 2:43 pm 
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Joined: Thu Jan 21, 2010 11:28 am
Posts: 318
Location: Shelton, Ct.
Does anyone know the largest (bore size) brake master cylinder that will fit in an early Z ('71 - '73) ?
Irv Rich (203)924-6639
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CygnusX1
 Post subject:
PostPosted: Fri Apr 16, 2010 7:39 pm 
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Joined: Fri Nov 14, 2008 1:50 pm
Posts: 605
Location: Putnam Valley, NY
I am using a 280ZX master cylinder, 15/16" bore, in my 76 280Z. I am not sure if it bolts to the 240Z Booster due to the push rod depth variances. Push rods can be swapped however.

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76Z Turbo'd
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Datsun Z Garage
 Post subject: Re:
PostPosted: Fri Apr 16, 2010 9:32 pm 
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Joined: Fri May 23, 2008 9:34 pm
Posts: 362
Location: Hamden, CT
I have the 15/16" '79 280ZX master cylinder on my '70, bolted up to the vacuum booster easily. The front/rear fluid chambers swapped places between the '70 and later models though so you'll need to do some eyeballing to see which one you have...to compare the lines with yourmodel.

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Bryan Little
Datsunzgarage.com

1970 240Z - enhanced F54 L28 w/P90, Weber DCOEs, 4:11 R200, Nissan T5 5-speed
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Irv83
 Post subject: Brake MC
PostPosted: Sat Apr 17, 2010 8:53 am 
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Joined: Thu Jan 21, 2010 11:28 am
Posts: 318
Location: Shelton, Ct.
Many thanks, gentlemen. 5 min. ago I purchased a 300ZX BMC (1 1/16" bore) with vacum booster, used, on Ebay for $44 incl. shipping. I'll let you know how much "adapting" will be required.
Irv Rich
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CygnusX1
 Post subject:
PostPosted: Mon Apr 19, 2010 10:17 pm 
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Joined: Fri Nov 14, 2008 1:50 pm
Posts: 605
Location: Putnam Valley, NY
What calipers will you be squeezing with that bore? :shock:

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76Z Turbo'd
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Irv83
 Post subject: Calipers
PostPosted: Wed Apr 21, 2010 10:02 am 
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Joined: Thu Jan 21, 2010 11:28 am
Posts: 318
Location: Shelton, Ct.
The '83 Toyota 4x4 P/U 4 piston calipers. I'm still trying to find specs. on the spcer required to use a vented 280zx rotor.
Irv
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CygnusX1
 Post subject:
PostPosted: Wed Apr 21, 2010 12:27 pm 
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Joined: Fri Nov 14, 2008 1:50 pm
Posts: 605
Location: Putnam Valley, NY
Have you been to hybridz and read the brake upgrade FAQ? You might find the info in there.

http://forums.hybridz.org/index.php?/to ... 30-z-cars/

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76Z Turbo'd
72 In Progress---DONE!
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