929 master ports.
 

Ok I have questions.... I recently upgraded to the V8r Stoptech brakes and also upgraded to the 929 1" master. Now my question is which port goes to the front brakes and which goes to the rear line. I assumed it was like the Miata, front port front brakes, rear port rear brakes. I also assumed based on the shape of the front port that it was a bubble flare port but after looking at the picture of the V8r master cylinder brace that there's a banjo fitting there. Ugh I hate brake lines... someone please set me straight. FYI my system doesn't leak even if it looks like a hot mess haha.

It doesn't matter which port you connect to the front or rear. Looking at the picture, it appears that you have everything hooked up properly.

I'm not sure what flare the port is on that MC. I would assume it would be a double/inverted flare since its for a Japanese car. Bubble is usually on European cars. The banjo fitting came on factory 929 MCs, but I have not seen them included on the aftermarket ones from Rockauto. The raybestos catalog/website lists Primary Port Thread A 9/16"-18, so it more than likely is double/inverted.

Was your MC made in Japan?
https://cimg3.ibsrv.net/gimg/www.mia...184a7f9542.png

FWIW, the 929 master I bought from rockauto a few years ago used a banjo fitting. A lot of the OEM Miata ones do too -- IIRC i pulled a banjo-to-flare adapter off a spare master that I had sitting in the shed.

http://www.codrus.com/miata/fm2r/929-master.jpg

--Ian

So I never tried the using my banjo piece from my Miata master thinking that it would have come with one like the aftermarket 1.6 Miata ones do. The port on my new Dorman master was m10 in the front and the bubble flare line seemed to seat just fine and isn't leaking (yet). I'm guessing I have just been lucky so far. I'll make sure to get it properly bled (I just left the bleeder open till I got fluid out (haven't had time to phone a friend) then get the vacuum booster hooked up so I can properly mash this pedal and make sure it doesn't leak.

@cj9694 I just upgraded to the stoptech kit as well. I am experiencing excessive pedal travel after a ton of bleeding. Is this why you choose to go to a 1" master? Or something you planned to do from the get go?

So if you look up a bunch of other people's experiences. The 7/8" master found in most Miata's (apart from the cars with sport brakes). I tried running sport calipers with a 7/8" master the travel was pretty bad as it was. A 1" master should help your problem.

I was running Wilwoods on all four corners at the time that I upgraded from 15/16 to 1". Lots of squishy pedal with the 15/16, the 1" was a big improvement.

--Ian

When ordering, is there any advantage in choosing an ABS or non ABS version? (non abs car) Not meaning to be a stupid question because sometimes a small design difference has fitment or mechanical advantage.

Typically ABS has 1 port for front, 1 port for rear. Non-abs has 2 front, 1 rear.

Not the case for the 929 master. I made sure to check that

Interesting when I was shopping for mine mid last year, I could not find any that included the banjo. I ended up finding a Seiken 929 master that came with one, but Seiken was/is the OEM for Mazda masters and boosters, so I snagged it the second I saw it lol

Yep, I forgot. The non-ABS 929 used a weird dual-port banjo fitting that's basically impossible to find these days.

https://cimg9.ibsrv.net/gimg/www.mia...acd15e9599.jpg