FS: 2001 15/16" Brake Master Cylinder/Brake Booster
06-11-2014, 12:13 PM
#1
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FS: 2001 15/16" Brake Master Cylinder/Brake Booster
FS: 2002 15/16" Brake Master Cylinder/Brake Booster AND PROP VALVE
EDIT: I found the original information from the previous owner. This is from a 2002 SPORT SE model, could not verify ABS or not from previous owner. The third outlet on the MASTER CYLINDER suggests NON-ABS, but other photos have shown that NON-ABS brake boosters are considerably thicker. I could not edit the thread title.
Bought this a while back for the 7/8" to 15/16" upgrade (improved feel). The lines into the BMC need to be bent and OG Miata owners say the NA lines have enough slack for those modifications. You NEED the booster to go with it as NA boosters won't work with NB boosters (will have more links available).
Finally did 1.6L>1.8L rotors/pads upgrade but decided not to go with the BMC/BB/PROP VALVE upgrade as well (to finish the job asap). Rather not hold onto it at this point (relocating, minimizing baggage).
Photos:
Got lazy to do the extra work. =(
Typical reman BMC prices: $70-100
Typical NB booster prices: >$150
Prop Valve: $50+/-
Flyin' Miata : Tech: Stock proportioning valve information
http://www.flyinmiata.com/tech/image...sure_chart.gif
Asking: $150
Located in Southern California
EDIT: I found the original information from the previous owner. This is from a 2002 SPORT SE model, could not verify ABS or not from previous owner. The third outlet on the MASTER CYLINDER suggests NON-ABS, but other photos have shown that NON-ABS brake boosters are considerably thicker. I could not edit the thread title.
Bought this a while back for the 7/8" to 15/16" upgrade (improved feel). The lines into the BMC need to be bent and OG Miata owners say the NA lines have enough slack for those modifications. You NEED the booster to go with it as NA boosters won't work with NB boosters (will have more links available).
Finally did 1.6L>1.8L rotors/pads upgrade but decided not to go with the BMC/BB/PROP VALVE upgrade as well (to finish the job asap). Rather not hold onto it at this point (relocating, minimizing baggage).
Photos:
Got lazy to do the extra work. =(
Typical reman BMC prices: $70-100
Typical NB booster prices: >$150
Prop Valve: $50+/-
Flyin' Miata : Tech: Stock proportioning valve information
http://www.flyinmiata.com/tech/image...sure_chart.gif
Asking: $150
Located in Southern California
Last edited by greeenteeee; 06-12-2014 at 02:10 PM.
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06-11-2014, 01:26 PM
#3
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prices are from google search, not sure of typical preferred miata used parts sellers. sorry.
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06-12-2014, 02:12 PM
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bump... MASTER CYLINDER is NON-ABS due to 3 outlets (3rd just needs to be plugged) and BOOSTER seems to be ABS (since it is thinner). Online search notes that the NON-ABS brake boosters are the thicker versions... this picture was on miata.net
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06-13-2014, 06:24 PM
#7
Oh, and FYI, here's a bit from Keith @ FM:
You have a 01-05 Sport & MSM non-ABS booster, which is the preferred booster, as it lets you mount a MC brace on a STB. The sport+ABS/non-sport booster is too thick.
Originally Posted by Keith@FM
It turns out there are at least 3 boosters that were used in the Miata, and I didn't expect some of the variations. Here's how it breaks down.
1990-00: 4.74:1 <- this is a bit approximate, as Mazda gives a range of output pressures as acceptable
2001-05 non-Sport and Sport with ABS, except for MSM: 9.7:1. Yes, that's about double. This booster is visibly fatter, and I suspect it has dual diaphragms inside instead of a single.
2001-05 Sport without ABS and MSM: 6.4:1
1990-00: 4.74:1 <- this is a bit approximate, as Mazda gives a range of output pressures as acceptable
2001-05 non-Sport and Sport with ABS, except for MSM: 9.7:1. Yes, that's about double. This booster is visibly fatter, and I suspect it has dual diaphragms inside instead of a single.
2001-05 Sport without ABS and MSM: 6.4:1
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06-13-2014, 07:16 PM
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Gotcha, so it's an NB2 Sport non-ABS master cylinder and brake booster. Thanks for confirming!
Must admit, when I saw the ratios, I figured the "2001-05 non-Sport and Sport with ABS" would be preferred.
Must admit, when I saw the ratios, I figured the "2001-05 non-Sport and Sport with ABS" would be preferred.
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