Big Brake?

[engee]

Here's a useful read for the OP if he hasn't read it already.

http://www.ft86club.com/forums/showthread.php?t=5136

At the end of the day, it all depends on what you are using the car for.

If it's gonna see a ton of track days, it probably wouldn't hurt to go bigger to address issues of heat and fade.

If you are only going to autocross/track every once in a while, you could probably convince yourself it is useful even though a majority of people, myself included, will think it doesn't make a difference.

If you are never going to see an autocross/track, you are getting it for the BLING factor.

[Dave-ROR]

Originally Posted by chulooz

I see what you are saying about fitment, but then to claim that they are not an upgrade is certainly speculative. I would be willing to bet that the 4/2 setup will out-brake and outperform a stock setup, any wagers?

Depends. if it moves bias too far in either direction ABS will activate early and if you stay at the threshold you would have longer stopping distances than stock.

Brakes are simple to install/fit but not always so simple to get correct performance out of them.

With the fronts only, do they have any difference in pad area? Or piston area? More pistons doesn't mean more piston area by default. If it's the same as the stock slider you will improve feel/modulation only (and some slightly better pad wear), not performance.

[Dave-ROR]

Originally Posted by engee

Here's a useful read for the OP if he hasn't read it already.

http://www.ft86club.com/forums/showthread.php?t=5136

At the end of the day, it all depends on what you are using the car for.

If it's gonna see a ton of track days, it probably wouldn't hurt to go bigger to address issues of heat and fade.

If you are only going to autocross/track every once in a while, you could probably convince yourself it is useful even though a majority of people, myself included, will think it doesn't make a difference.

If you are never going to see an autocross/track, you are getting it for the BLING factor.

And this thread, which IMO has more info in it: http://www.ft86club.com/forums/showthread.php?t=5009

And about 12 other threads...

increase the size of the heatsink only if you have problems that can't be addressed with cooling, otherwise you won't see performance benefits (but yes, feel/modulation and pad wear benefits), but there will be negatives.

[chulooz]

Pretty cool results from this test on Nasioc, some evidence toward me being on the more probable side of this argument. (4pots also weighed in a lb lighter.)

http://forums.nasioc.com/forums/show...&highlight=pot

[OrbitalEllipses]

Heh, I remember when irish posted it some years ago. In any case, they're expensive new and a provide some benefit to the heavy pig car. It remains to be seen whether or not moving bias rearward does anything relatively helpful for this car.

[Turbowned]

Brake bias wouldn't be a concern if the person swapping the brakes over spent the $40 on an adjustable proportioning valve.

[Dave-ROR]

Originally Posted by Turbowned

Brake bias wouldn't be a concern if the person swapping the brakes over spent the $40 on an adjustable proportioning valve.

Which is worthless unless someone knows how to set it up

[Turbowned]

Of course, but that's like saying "don't buy coilovers because you don't know how to set them up." That's where a good performance shop can step in and set it up for you.

[Dave-ROR]

Originally Posted by Turbowned

Of course, but that's like saying "don't buy coilovers because you don't know how to set them up." That's where a good performance shop can step in and set it up for you.

You must have good performance shops around there.

Here I think they'd maybe be able to set it up to a specific weight, but suggestions on rates/damper settings.. good luck.

And brake bias.. even more good luck.

About the only people who would know are the race shops, which there are plenty of, but they tend to be busy and therefore you won't get it done quickly.

[Racecomp Engineering]

An adjustable prop valve is a ton of work for a Subaru and IIRC requires replumbing the lines and possibly losing ABS. It's not something you're going to do on a street car.

- Andrew

[Dave-ROR]

Originally Posted by Racecomp Engineering

An adjustable prop valve is a ton of work for a Subaru and IIRC requires replumbing the lines and possibly losing ABS. It's not something you're going to do on a street car.

- Andrew

Thinking about it, I've never used one on an ABS car before in general. My track/race cars have always have always had ABS completely removed anyways...

I guess you could use an adj valve with ABS but I could see some issues there.

Good input

And regardless, 99% of the people who put on a big brake kit NEVER touch any other part of the system anyways.

[Turbowned]

Originally Posted by Racecomp Engineering

An adjustable prop valve is a ton of work for a Subaru and IIRC requires replumbing the lines and possibly losing ABS. It's not something you're going to do on a street car.

- Andrew

Good point. I never liked ABS anyway

[track_warrior]

Why not do the TRD upgrade up front and keep the oem rear ones but do rotors pads and lines? I dont think this car will need huge brakes since its light , that should be more than enough.

[Racecomp Engineering]

Originally Posted by Turbowned

Good point. I never liked ABS anyway

Ha! You sound like my brother. Actually...I was tempted to make a little switch that disabled ABS on my old subaru since it was way too intrusive (especially in bad weather). But they've gotten a lot better.

- drew