anyone going to try 949's brake upgrade? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 04-20-2009, 12:34 AM   #1
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Default anyone going to try 949's brake upgrade?

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Old 04-20-2009, 12:41 AM   #2
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Old 04-20-2009, 01:34 AM   #3
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Well crap, I missed that one tiny part on there that says it's from m-tuned, sorry. Any feedback from those who have a thousand miles or so logged with them installed? How much bias will I need if I already upgraded to 1.8 brakes all around?
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Old 04-20-2009, 10:26 AM   #4
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If you have a 1.6L you really need an adjustable proportional valve or one off a new miata. That or better rear pads.
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Old 04-20-2009, 10:33 AM   #5
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That hardware looks awful shiny. Is it Grade 8 stuff?
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Old 04-20-2009, 05:41 PM   #6
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I always wondered how the proportioning valves worked. Basically its a pin that gets threaded into the brake fluid passage, but doesn't the pressure end up equalling out after some time after the brake was pressed?
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Old 04-20-2009, 06:52 PM   #7
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I don't have 1k miles on yet. Just installed the M-tuned 11' brackets last week. In 3 days I put 400 street miles and 2 hours of track time on them though.

Something is allowing the caliper bracket to move in relation to the rotor. One of the nubs in the caliper bracket moves slightly to contact the inside face of the rotor. I should have taken everything back off and filed that nub down farther than I did 1st time. Lazy though and the track day took care of that for me. I can't see the little groove in the rotor since they are on the inside. Out of sight, out of mind.

I've got a 94 so I've already got the 1.8 system. I'm running carbotech xp10's up front and xp8's in the rear. Stock calipers, stock prop valve, stock brake lines, stock brake cylinder. Balance at the track was excellent. No problems. Was expecting too much front bias but was pleasantly suprised. An SCCA nationals driver drove it for a few laps and thought the brakes were set up great. I didn't tell him about the corrado rotor mod before hand.

Last edited by cueball1; 04-20-2009 at 07:18 PM.
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Old 04-20-2009, 06:55 PM   #8
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FM has a tech article on their site RE: prop valves. Read it.
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Old 04-20-2009, 08:19 PM   #9
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So the prop valves are different between a 1.6 and 1.8 NA? I already have 1.8 brakes front and rear on my 90.
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Old 04-20-2009, 08:31 PM   #10
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Quote:
Originally Posted by Ben View Post
FM has a tech article on their site RE: prop valves. Read it.

Since those instructions were too difficult. Here's me holding your hand and walking you to your answer.

Flyin' Miata : Tech: Stock proportioning valve information
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Old 04-20-2009, 09:04 PM   #11
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braking in rain was fun today. stops awesome. i have women all over me now!!!
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Old 04-20-2009, 10:36 PM   #12
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Quote:
Originally Posted by Ben View Post
FM has a tech article on their site RE: prop valves. Read it.
The % values shown in the chart are % front bias, yes?
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Old 04-20-2009, 10:37 PM   #13
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Quote:
Originally Posted by zoomin View Post
So the prop valves are different between a 1.6 and 1.8 NA? I already have 1.8 brakes front and rear on my 90.
Anyone?
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Old 04-20-2009, 10:40 PM   #14
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Quote:
Originally Posted by zoomin View Post
Anyone?
If only there was an article which went into detail about the differences between the years' prop valves. Someone should find it and link it here. Maybe try FM's site?
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Old 04-20-2009, 10:44 PM   #15
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Quote:
Originally Posted by zoomin View Post
Anyone?


YOU STUPID ****** I SWEAR TO GOD:


http://www.flyinmiata.com/tech/stock_bpv.php



one more stupid responce, i dare you.
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Old 04-20-2009, 10:47 PM   #16
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Quote:
Originally Posted by kotomile View Post
The % values shown in the chart are % front bias, yes?
I believe that is the percentage that the rear is of the front. So the higher the number, the more REAR biased the prop valve.


From this it looks like the 1.6L cars have the most front biased prop valve. Thus Brain's comment that 1.6L cars will need a (Wilwood) prop valve or stickier pads in the rear.


I really wanna do this mod, but don't want to source 15" wheels.





btw, zoomin, I'm going to come out and say it:

you're sofa king we todd it

EDIT: Brain beat me to it damnit.


And don't EVER ******* quote yourself in a thread when you CAN'T ******* TAKE THE TIME TO READ THE RESPONSES acting like no one's paying attention to you when you don't even know which direction the wind is blowing fuckface.
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Old 04-20-2009, 11:03 PM   #17
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We are in the process of making a 10.9" rear kit. Hoping to have a test version for my car very soon! Emilio @ 949Racing will also have the rear kit when complete.

Last edited by M-Tuned; 04-20-2009 at 11:20 PM.
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Old 04-20-2009, 11:07 PM   #18
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This would make buying 6ULs just a little more worth it.
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Old 04-20-2009, 11:22 PM   #19
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Quote:
Originally Posted by gospeed81 View Post
I really wanna do this mod, but don't want to source 15" wheels.
Amen.
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Old 04-20-2009, 11:32 PM   #20
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My Nickel 6UL's will be here in less than a month, man I can't wait!! And you guys need to chill out a bit.
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