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Old 05-04-2004, 12:25 PM   #1
czo79
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Join Date: May 2001
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Default H6 rear brake upgrade...

Hello all...
I am wondering what you guys think about the H6 rear brake upgrade. I've been thinking about doing it on my 97 GT. I have been having problems with pad material on rotors, even though I got cryos and nice hawk hps pads and broke them in, I think all the really hard braking I do every time I go by one of the turn around where the cops hide does them in. So I was thinking about doing the H6 upgrade on my rear. I know it will shift the brake bias a bit to the rear, and I was thinking maybe that will help make the fronts not have to work quite so hard. Eventually maybe I will do an wrx upgrade up front...but in the meantime, if I just do the H6 rear, does anyone have an opinion on how noticable the brake bias shift will be? I don't want to screw up the cars handling under braking...I have heard people say that they find the shift in bias from the h6 upgrade to be a good thing...
thoughts?
thanks
micum
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Old 05-04-2004, 12:41 PM   #2
subysouth
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It definitely is a good thing. I have done essentially the same upgrade on my car only with the B4/GT-B rear brakes, but the brake torque output is identical. The car brakes flatter and better IMO. No downside I can see accept maybe a little more weight.

Just an FYI, on your car you have to replace the entire rear caliper setup, not just the brackets. Your rear calipers are incompatible with the H6 brackets. Thats why I spent the extra change for the B4/GT-B setup, I had to replace it all anyway.

ss
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Old 05-04-2004, 12:42 PM   #3
Kraziken
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I just completed the "H6" upgrade. I had WRX Cryo fronts with Semi-metallics pads. So I was getting a bit of brake dive.

The H6 rears are definately worth it.

I think both upgrades were worth it. If it weren't for cost, I'd probably have done both at the same time.
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Old 05-04-2004, 02:26 PM   #4
kingpumba1
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Anyone have a good (cheaply) source for purchasing the ALL necessary hardware for doing the H6 swap on the rear and the WRX swap on the front of my '98 Legacy GT wagon? Any idea as to the cost for each ?

Thanks
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Old 05-04-2004, 03:15 PM   #5
subiekid
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http://forums.nasioc.com/forums/show...hreadid=545325

Quote:
Or, simply upgrade your rear brakes to a H-6 size by buying our H-6 kit..

Includes caliper bracker and rear Stoptech H-6 rotors

Only 249.99
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Old 05-04-2004, 05:21 PM   #6
subysouth
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Quote:
Originally posted by subiekid
Or, simply upgrade your rear brakes to a H-6 size by buying our H-6 kit..

Includes caliper bracker and rear Stoptech H-6 rotors

Only 249.99
subiekid that wont work on the BD/BG and earlier Legacys. They use the "older" style single pot rear caliper. The H6 upgrade uses the "newer" style rear single pot caliper. To get the H6 rear on a 99 or older Legacy, you have to buy the entire rear setup, not just brackets and rotors, which is what is in the Stoptech kit you linked.

ss
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Old 05-04-2004, 05:23 PM   #7
subysouth
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Quote:
Originally posted by kingpumba1
Anyone have a good (cheaply) source for purchasing the ALL necessary hardware for doing the H6 swap on the rear and the WRX swap on the front of my '98 Legacy GT wagon? Any idea as to the cost for each ?

Thanks
NASIOC classifieds or a salvage yard.

You can buy the 99-03 Impreza rear calipers and then buy the rotors and brackets like in the kit subiekid linked or you can buy the whole setup off the rear of a wrecked 2000+ Legacy.

ss
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Old 05-05-2004, 12:48 AM   #8
subiekid
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hmm...my friend bought the rear brakes off of my 92 turbo when it got smashed and put them on his 93 impreza. So the 99 to 03 brakes are different for the impreza? or is it just the RS brakes?
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Old 05-05-2004, 10:59 AM   #9
subysouth
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Quote:
Originally posted by subiekid
hmm...my friend bought the rear brakes off of my 92 turbo when it got smashed and put them on his 93 impreza. So the 99 to 03 brakes are different for the impreza? or is it just the RS brakes?
Your friend swapped the entire rear setup which is quite easy to do on basically any Subaru in the US made since 1990(with a couple of exceptions.)

The problem comes when you try to use a newer style bracket(H6) with an older style caliper.The H6 upgrade as done on the WRXs uses the stock newer style WRX caliper and an H6 bracket and rotor. The stock rear caliper on 99 and older Legacys/OBs and 98 and older Imprezas/Foresters will not bolt to the H6 bracket.

If you swap an entire H6 setup(caliper and brackets and rotors) its no prob whatsoever to use the setup on any Subaru made since 1990(except the SVX and STi.)

ss
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Old 05-06-2004, 01:10 AM   #10
subiekid
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So, I am gona need new caliper mounts for the 4 pots in the front?

damn that blows.
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Old 05-06-2004, 02:21 AM   #11
subysouth
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Quote:
Originally posted by subiekid
So, I am gona need new caliper mounts for the 4 pots in the front?

damn that blows.
Werent we talking about the rears?

Not at all. The caliper mounting ears are integrated into the 4pot caliper body. It bolts right up to the front knuckles no probs after you remove your stock sliding calipers/caliper brackets,

Sliding calipers use seperate calipers and caliper brackets. Opposed or fixed caliper designs dont have to use seperate caliper brackets(although some do use adapters to use caliper bodies on various vehicles.)

ss
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Old 05-06-2004, 02:23 AM   #12
subiekid
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cool, we were talking about rears, but i thought you said that the fronts would need to be changed for the wrx brakes to work, so i thought that since all the wrx guys just bolt on the 4 pots that i would have to change my mounts to get it to work.

thanks
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Old 05-06-2004, 02:46 AM   #13
Kraziken
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I bought the new parts from www.subaruparts.com using the part numbers at scoobymods. I can't remember the cost, but with the part numbers you can go to subaru parts to figure out the cost.

I couldn't find a part number for the actual calipers for the rears, and no one I checked out a local junkyard and they gave me the whole rear brake assembly from a junked WRX for $50 each.

I actually have some extra parts now because of this, so if you're interested, PM me and I can sell you some of the parts you'd need.
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Old 05-06-2004, 10:27 AM   #14
subysouth
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Quote:
Originally posted by subiekid
cool, we were talking about rears, but i thought you said that the fronts would need to be changed for the wrx brakes to work,
When was that?

ss
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Old 05-07-2004, 05:36 PM   #15
subiekid
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Quote:
Originally posted by subysouth
When was that?

ss
nevermind, i am dyslexic
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Old 05-08-2004, 02:51 PM   #16
Tizzle
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so, will this work under 15x6" wheels?
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Old 05-08-2004, 03:42 PM   #17
Charlie-III
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Quote:
Originally posted by Tizzle
so, will this work under 15x6" wheels?
I doubt it, but maybe.
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