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Upgrading to High-Performance Brakes
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Old 03-18-2008, 07:49 AM   #21
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Good thread, Geran.

There's always StopTech's pages too, very very helpful!!!

http://www.stoptech.com/tech_info/faqs.shtml
Yeah Stoptech is awesome. That is my bathroom reading material.
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Old 03-18-2008, 07:58 AM   #22
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I would love to get some 4-pots/2-pots for my car, but they're not on the immediate priority list. I've got my WRX/H-6 stuff, it works fine, and I'm running Valvoline DOT-4 fluid with Porterfield R4-S pads. (Though they're old... probably time to change; trying the Hawk HPS probably.)
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Old 03-18-2008, 08:09 AM   #23
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I think it would be nice to have a sheet of which OEM wheels fit over which brakes and with stock/modified suspension...

Unless it's already out there, haha. Due to me needing to find out what size of wheels I HAVE to buy.
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Old 03-18-2008, 08:16 AM   #24
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I think it would be nice to have a sheet of which OEM wheels fit over which brakes and with stock/modified suspension...

Unless it's already out there, haha. Due to me needing to find out what size of wheels I HAVE to buy.
If you give me a little time to do some research I can come up with a list and post it for you. Also, do you just want factory wheels or aftermarket ones too?

I will do the same for brakes too.
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Old 03-18-2008, 08:20 AM   #25
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Well there's a couple FAQ threads to start with:

Will these Tires/Wheels Rub? (Look Inside) + Wheel Weights for 100's of Rims!

http://forums.nasioc.com/forums/showthread.php?t=335263

http://forums.nasioc.com/forums/show...hreadid=216055


Short version: 15" steelies or Subaru alloys will clear up to the RS stock front brakes (10.7" vented rotor, 2-pot caliper).
16" wheels needed for the 2002-2005 WRX rotor (11.4" vented rotor), with the same RS caliper, using the WRX bracket.
GC 4-pot fronts (also used on 2006-2007 WRX, USDM) will fit under the 98-01 RS wheels, 16x7" 53mm offset. They will NOT fit under 2002-2005 WRX/RS/TS wheels, which are 16x6.5" in size.

Aftermarket wheels follow essentially the same rules; they have to be of the correct diameter, width, AND offset.
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Old 03-18-2008, 08:22 AM   #26
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If you give me a little time to do some research I can come up with a list and post it for you. Also, do you just want factory wheels or aftermarket ones too?

I will do the same for brakes too.
I would say factory wheels for sure and maybe the smallest wheel you can put on for each of the different types of brakes? That way you don't need to list every aftermarket wheel known to man kind, haha.

That would be awesome!
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Old 03-18-2008, 08:23 AM   #27
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Quote:
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I would say factory wheels for sure and maybe the smallest wheel you can put on for each of the different types of brakes? That way you don't need to list every aftermarket wheel known to man kind, haha.

That would be awesome!
Siper beat me to it. Good reads on all those links.
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Old 03-18-2008, 11:40 AM   #28
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Nice write-up.

The only thing left out was EBD or Electronic Brakeforce Distribution. The way I understand it newer Subies equipped with this system have sort of like an electronic proportioning valve. So if you were to install a big brake kit on a car equipped with EBD it would automatically compensate to give the best brake bias for a given situation.

That said I wouldn't go with one of those big brake kits. My dream set-up for auto-x is a little different and aimed at reducing weight as well as increasing braking power.

On the front I would go with RacingBrake's 4 pot aluminum calipers and their stock size 2 piece slotted only rotors. I'd prefer normal rotors, but they don't offer them. The RB 4 pots are half the weight of the Suby 4 pots, and use the same pads so pad choice is huge. The rotors of course are a few pounds lighter too. I would also switch to aluminum lower arms to further reduce unsprung mass.

On the rear I would simply use RB's OE caliper brake upgrade. Basically the Legacy rear rotor upgrade. Since the front brakes are doing 80% of the work I can't see needing more than that. Of course synthetic fluid and SS lines are a given.

I believe this set-up would be very effective, look good, and still allow the use of 16" wheels.

This set-up may not have the thermal capacity of larger braking system, but it also wouldn't have the mass either. This also may not be the best track set-up, but I believe on a modded street car they would work fine since the car would be limited to doing too many laps at once by things like oil/water/tire/etc temps anyway.
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Old 03-18-2008, 11:52 AM   #29
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The only thing to understand is that this is a few years old and it wasn't for just Subarus. It is for all cars.
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Old 03-18-2008, 12:04 PM   #30
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Subscribing. Great thread with excelent information.
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