79/80 w/ Disc brakes
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79/80 w/ Disc brakes
Hey everyone. I am soon going to undertake the venture of swapping in rear disc brakes into a 79. I know that the thread size on the brake lines is different. How do I overcome this. Is it just the side toward the rear of the car that has the different thread? Or is it both ends of the hardline? Do I need to swap ALL lines and the newer master cyl in order to do it? Is there a write up that I missed on here somewhere? THANKS!
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https://www.rx7club.com/showthread.p...ight=79+brakes
Ok, after forever of searching I finally found this.
I had no idea mazdatrix actually made a kit for this! I hope anyone else interested in doing the conversion finds this useful.
But does anybody know about the proportioning valve? Can I replace the master cyl and everything from a newer car straight to the old booster?
Ok, after forever of searching I finally found this.
I had no idea mazdatrix actually made a kit for this! I hope anyone else interested in doing the conversion finds this useful.
But does anybody know about the proportioning valve? Can I replace the master cyl and everything from a newer car straight to the old booster?
Last edited by Morey987; 08-31-07 at 08:13 AM.
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Would I be better off replacing the booster, and the clutch master. Are the in the same locations? I am also going to install respeeds big brake upgrade, so I am either going to need to replace either those hard lines as well, or find the adapter to install THOSE stainless hoses. Anyone know where to get em? Bwaits says he's working on em, but I'm not sure if they are a for sure thing.
Also, I think I'll need the 85 drive shaft since it's an 85 rear end right?
Also, I think I'll need the 85 drive shaft since it's an 85 rear end right?
#7
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The brake master mounting holes in a SA chassis are closer than the FB. this is why you can not use the bigger booster on the SA.
-billy
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#8
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The FB brake booster is larger than a SA. If you decide to use on a SA, it wont clear the SA.
Slot the mouting holes on both brake booster and clutch master. This will allow you to can slide the clutch master towards the fender AND/OR slide the FB brake booster closer to the engine.
HOWEVER, clutch and pedals stay at the same place. so if you have done it, the push rods are tweaked or ****-eye.
Wacky maybe wacko but he doesnt believe in mickey mouse jobs. So wacky will leave the SA brake booster alone.
Slot the mouting holes on both brake booster and clutch master. This will allow you to can slide the clutch master towards the fender AND/OR slide the FB brake booster closer to the engine.
HOWEVER, clutch and pedals stay at the same place. so if you have done it, the push rods are tweaked or ****-eye.
Wacky maybe wacko but he doesnt believe in mickey mouse jobs. So wacky will leave the SA brake booster alone.
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I completely understand Wacky,,, I don't want my car to be any way mickey moused! And I really appreciate the patience you guys show us *especially me* on here. I have no problem using the sa brake booster, although from what I've read it's weaker.
Also, I will need the 85 drive shaft correct?
Don't worry about time for me Billy. I've still got two months before I even get out of Iraq, so time I have. It's the knowledge I want!
Also, I will need the 85 drive shaft correct?
Don't worry about time for me Billy. I've still got two months before I even get out of Iraq, so time I have. It's the knowledge I want!
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Did mazdatrix let you order Just the rear set. I already have the front ones now, and I am switching to respeeds front brake upgrade so I would have TWO sets of useless front lines. Hehe. Hell of a price to pay for brakes.
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