Mazdaspeed Turbo rear caliper vs. Sport Brake?
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Anybody know what is different about the Mazdaspeed rear calipers from the hard/sport susp rear calipers? looking at part numbers on mazdamotorsports.com I came up with this.
Brackets: right
Normal Susp NA75-26-28X
Hard Susp Sport Susp NA67-26-28X
W/Turbo N115-26-28X
Caliper: right
Normal Susp NA75-26-61X
Hard Susp Sport Susp NA67-26-61X
W/Turbo N115-26-61X
Pads:
Normal Susp NY6-26-48Z
Hard Susp Sport Susp NY7-26-48Z
W/Turbo NY7-26-48Z
What I believe to be true
1) The mazda speed turbo and the hard/sport susp both use the same rotor and pads.
2) The Mazda Speed Turbo and hard/sport susp calipers both have 1-3/8” pistons where the Normal susp calipers have 1-1/4” pistons
3) Verified for myself that the Hard Susp/Sport Susp calipers fit on any of the earlier brackets including 1.6l brackets. So you can get more rear bias by changing just the caliper. Looks also like the caliper body has more stiffening ribs in it.
The questions that remain
1) What is different about the Mazdaspeed Turbo calipers and brackets that warrant the different part numbers?
2) Do the Mazdaspeed Turbo calipers fit on ealyer brackets like the Hard/Sport susp calipers do?
Bob
Brackets: right
Normal Susp NA75-26-28X
Hard Susp Sport Susp NA67-26-28X
W/Turbo N115-26-28X
Caliper: right
Normal Susp NA75-26-61X
Hard Susp Sport Susp NA67-26-61X
W/Turbo N115-26-61X
Pads:
Normal Susp NY6-26-48Z
Hard Susp Sport Susp NY7-26-48Z
W/Turbo NY7-26-48Z
What I believe to be true
1) The mazda speed turbo and the hard/sport susp both use the same rotor and pads.
2) The Mazda Speed Turbo and hard/sport susp calipers both have 1-3/8” pistons where the Normal susp calipers have 1-1/4” pistons
3) Verified for myself that the Hard Susp/Sport Susp calipers fit on any of the earlier brackets including 1.6l brackets. So you can get more rear bias by changing just the caliper. Looks also like the caliper body has more stiffening ribs in it.
The questions that remain
1) What is different about the Mazdaspeed Turbo calipers and brackets that warrant the different part numbers?
2) Do the Mazdaspeed Turbo calipers fit on ealyer brackets like the Hard/Sport susp calipers do?
Bob
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The MSM brakes have a silver finish. That's the only difference I've been able to find.
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