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Old 06-26-2012, 12:37 PM
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Default DA Brake Master Cylinder Swap

So my EF's master cylinder is slowly leaking brake fluid and im sick of bleeding my brakes every other week. So ive decided to swap in a DA master cylinder, my question is:

Do i need to replace the brake booster too or just the master cylinder?

I've done a search and i saw a few threads but theres a discrepancy on if a 1" 90-93 DB integra master cylinder would bolt up to a ED7 brake booster. So would the DB master cylinder bolt up? and that being said would a DA bolt up?

Like i said i read like 3 threads and each of them said something different.
Old 06-26-2012, 02:28 PM
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Default Re: DA Brake Master Cylinder Swap

am i forever lost?
Old 06-26-2012, 02:57 PM
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Default Re: DA Brake Master Cylinder Swap

Im in the same kinda boat as you but a long time ago I picked up the non abs master and booster from the da 15/16.... gonna swap them in this weekend since my pedal isn't feeling to great lately.

I know forsure from alot of people who said the 1inch master and booster will not work unless I was ton differently its for abs cars only..... but for just for a 1inch master to work with the stock booster I"m not even sure. I really don't see how that would work,
id rather just go with the 15/16 master/booster and be done with it or just get the 1inch booster if I was wrong to mount to your 1inch master....
Old 06-26-2012, 03:19 PM
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Default Re: DA Brake Master Cylinder Swap

so just go and do them both and be done with it?
Old 06-26-2012, 03:29 PM
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Default Re: DA Brake Master Cylinder Swap

yeah but I'm not too sure if the 1inch master/booster works in ef/crx though
Old 06-26-2012, 03:35 PM
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Default Re: DA Brake Master Cylinder Swap

I think one of the fittings is a different size but if you change and re flare it but a 15/16 master is a easier swap

just asked a buddy this is what he said
Old 06-26-2012, 03:57 PM
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Default Re: DA Brake Master Cylinder Swap

Why not just replace with one made for your car instead of the DA one?
The oversized MC isn't right for your brake system unless you have done a front brake swap.
Old 06-27-2012, 11:08 AM
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Default Re: DA Brake Master Cylinder Swap

The EX 15/16" master cylinder works, I'm running this with DA front brakes and 4040 valve on my 91 Si.
Old 06-27-2012, 03:16 PM
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Default Re: DA Brake Master Cylinder Swap

Well i have the rear hubs for a disc swap and i have the discs from a DA so im GOING to do it but at the moment im about to put in an LS/VTEC so that takes presidence in my wallet. I just wanted to do it while i got the engine out so its easier.
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