pongsak15

hi
I am doing a MazdaSpeed 3 brake transplant onto a miata 92 NA.
Still in process...... need to make a bracket for it that is it......
what do you guys think? ............

pictures show

- xxr 002 16x8 0 offset
- mazdaspeed 3 front brake rotor 12.6" re drilling rotor from 5x114.3 to 4x100 to fit my miata
- mazdaspeed 3 caliper

stormin'norman

Youre on xxr's so clearly you have no use for bigger brakes. If you were tracking the car, the 1.6 brakes are more than capable for stock power just add some real pads.

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pongsak15

yeah.. my little miata going to drift and track too...
that is why i am doing it

iamiata

First xxrs, now mazdaspeed 3 brakes - just keep adding that unsprung weight there buddy!

pongsak15

yeah I know about that .... I will fix that....unsprung weight

stormin'norman

Clearly you have no clue what he meant.

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be good

do it! you should be able to lock them up doing 90 lol

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XDEEDUBBX

hahaha

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JC-MX5

This thread is so full of win.

howangsNA

in for results. good luck w/ your project. Hopefully this can be a semi bolt on affair

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pongsak15

oright .. if you think you have a clue for unsprung weight...
lets me ask you....
what is Unsprung Weight? What are some of the typical components of a car that fit in this category? What is the importance of this mass? How does it effect the performance of a car?
dont tell me...
- Unsprung weight is all of the weight between the road and the springs
- Unsprung weight is anything that is NOT supported by the springs
- unsprung weight is everything from the springs down
- unsprung weight is not engine, fluids, you, your girlfriends, boyfriends (maybe) , toys, bags of candy.

OOPS I have no clue....sooorry no clue

dliverance

holy crap that's some stopping power

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kwolzen

he's going to drill the rotors himself so they're lighter and look better silly.

TurboTyla

why do you guys have to thread crap. He is doing something that is helping the braking performance efficiency.

So who cares if he has xxr wheels. This is better then racelands and slamming every fucking car. Shut up you people are stupid. How do you know that he doesnt have a ls1 in his car. Jesus. i begin to have less and less faith in this website.

Go put fucking underglows on your cars and bitch when someone does something that is not text book slamming a miata. even if they weigh more they still will be a huge gain in performance. Even if it is not needed neither is a 400hp turbo 1.8. People do what they want why talk shit? ?

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JC-MX5

Everybody loves uneven brake bias. Nose diving and losing rear traction is a performance upgrade I guess.

Just because it's bigger doesn't mean it's better.

howangsNA

there's an app for that.

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terry pham

+1
apparently you don't know what a proportioning valve is for?! wilwood - good and cheap, proven.

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VagaXt

Brake proportioning valve.

dingo7

<------- refer to display pic.

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Haigog

If these said "Wilwood" on them, you'd all be drooling over them.

Doppelganger

Meh...I don't think it's really all that good. The rotor size maybe, but the caliper is 'meh' at best. You really need a caliper with pistons on both side of the rotor if you're going to "do it right". For drifting, you don't need much for brakes as you're not really loading them up with heat.

You could have bought my Brembo GT kit if you're really looking for a serious upgrade.

I would recommend you get the 01+sport/03-05 standars/MSM rear brakes as well..along with the BMC from any of those cars if you are planning to have good brakes all around.

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Stanley

Which only works to the extent that the inherent bias can allow too-much-rear so that the valve can eliminate this issue.

For instance a stock NA/NB Miata comes front biased. If you add even more front brake torque for a given hydraulic pressure…how is reducing the rear braking action going to help? It won't. How will turning the bias to full rear help if the fronts still lock way before the rears.

You want to wind up with a balanced braking system. If you do so, the car will stop as well as the tires allow.

JC-MX5

What Stanley said. You can only compensate so much and even then, it doesn't really help the problem. People that do the simple 1.8 swap have experienced bias issues, let alone custom fitted MS3 brakes. There's nothing to gain but asthetics.

1vicissitude

I'm not sure you need to change the bmc. I was reading a tech article by Keith tanner on m.net and he tested the different MCs. He gave the pressure that was created from applying 44ft lbs of pedal pressure. The 1.6 MC was in the middle of the road. A regular 1.8 has the hardest pedal pressure, the sport brake MC has the lightest pedal. I personally hate a super soft pedal. I'm planning a sport brake swap and am probably just going to stick with the 1.6 MC. Hopefully it's sufficient.

AKADriver

You're conflating the brake booster with the master cylinder, and you're getting your years wrong:

http://forum.miata.net/vb/showthread.php?t=363284

The sport brakes actually have the highest pedal effort - 44lb-ft on the pedal only produces 638psi of line pressure, vs. 1038psi for '01-'02 non-Sport brakes or 796psi for '90-'00 brakes.

However this calculation also ignores the brake caliper piston size. Assuming the MS3 calipers have larger/multiple pistons, you need the larger bore of the 'sport' master cylinder or your pedal effort will go down and pedal travel will go up.

The non-ABS 'Sport' master cylinder is the one you want for a 'big brake' setup.