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GC8 STI RA BRAKE UPGRADE

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Old 26 January 2011, 06:32 PM
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P1 NUT
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Default GC8 STI RA BRAKE UPGRADE

Its been a while since I was on the scooby scene, approx 3 years, so looking for someone to refresh my memory.

I have just bought a classic GC8 STI RA and it still has the standard single pot calipers on the front. I want to upgrade these but need to know if the subaru 4 pot caliper and disc would be a straight swap or would I need an adaptor etc or am I better off just getting something like K-sport kit.

F.Y.I the car is soley a track car.

Cheers.
Old 26 January 2011, 06:55 PM
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alcazar
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Straight swap with the discs.
Ian Godney does an interesting big disc conversion for later..........
Old 26 January 2011, 07:34 PM
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crnproducts
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as above my friend. the calipers are a direct swap as are the discs.
Old 26 January 2011, 07:51 PM
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rooferman
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Might be worth considering Brembos or K-sports if only for track use.....
Old 26 January 2011, 08:10 PM
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Cheers guys. Doing the track car on a budget so can't really afford to spend £1000 just on brakes. Would spend up to £500 for used set if you know anyone with AP, K-SPORT, PRODRIVE 330mm kits. Cheers.
Old 23 May 2012, 07:48 PM
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Default old thread bump

interested in the same info, but for the rear. i have a 99 STi RA and have a set of 04 STi rotors/calipers handy. i understand that the fronts are direct fitment, but what about the rears. i've read a couple places that you need the "dogbone" brake adapter. can someone post a link to the required part?
Old 23 May 2012, 08:04 PM
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Originally Posted by ruckus racing
interested in the same info, but for the rear. i have a 99 STi RA and have a set of 04 STi rotors/calipers handy. i understand that the fronts are direct fitment, but what about the rears. i've read a couple places that you need the "dogbone" brake adapter. can someone post a link to the required part?
There is two ways you can fit the brembo rear brakes on a classic , either with the mounting bracket kit and thicker handbrake shoes

http://66.7.200.85/~godspeed/product.php?id_product=91

Or mounting bracket kit and discs with a sleeve fitted to reduce the handbrake size down to suit your original shoes

http://66.7.200.85/~godspeed/product.php?id_product=137

Cheers Ian
Old 23 May 2012, 08:14 PM
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ruckus racing
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do they sell the thicker shoes separate?
Old 23 May 2012, 08:17 PM
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Its my website

Yes we also sell the shoes on there own

http://66.7.200.85/~godspeed/product.php?id_product=92

Cheers Ian
Old 23 May 2012, 08:27 PM
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cool, will buying a set of these within a month-ish.

what do you use for shipping (to the US)?
Old 23 May 2012, 08:32 PM
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Originally Posted by ruckus racing
cool, will buying a set of these within a month-ish.

what do you use for shipping (to the US)?
They would be delivered by USPS , shipping to the US is £25
Cheers Ian
Old 23 May 2012, 08:40 PM
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Sorry for sidetracking the thread..but sent you a couple of PM's the other day Ian..appriciate your busy..but any chance of a reply please.

Many thanks.

Jay.
Old 23 May 2012, 08:49 PM
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i have a order waiting to be placed with JEGS, then the next time i get paid (june 15) you'll see an order from me for these
Old 23 May 2012, 09:10 PM
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BTW, will these fit on v5 STi RA hubs?
Old 23 May 2012, 09:48 PM
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Thanks for your prompt reply Ian.
Old 23 May 2012, 10:07 PM
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Originally Posted by ruckus racing
BTW, will these fit on v5 STi RA hubs?
Your car should have the 2 pots on the back as standard ??
Old 23 May 2012, 10:15 PM
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i believe so
Old 23 May 2012, 10:18 PM
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the thicker shoes won't work then , whats wrong with the handbrake shoes you have
Old 23 May 2012, 10:20 PM
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will have to get back to you tomorrow when i can get a picture of what i have

Last edited by ruckus racing; 23 May 2012 at 10:22 PM.
Old 24 May 2012, 09:18 PM
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to me it looks like floating single pots

so, i think i need the custom rotors and adapter dogbones from you

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Old 25 May 2012, 08:22 AM
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those are not the correct brakes for an STi RA v5.........you should have the larger R180 diff with 2pot "subaru" calipers fitted - in which case

you either have an RA, a std 4dr STi or someone has piched your rear end.......

alyn
Old 25 May 2012, 08:46 AM
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Originally Posted by stockcar
those are not the correct brakes for an STi RA v5.........you should have the larger R180 diff with 2pot "subaru" calipers fitted - in which case

you either have an RA, a std 4dr STi or someone has piched your rear end.......

alyn
it is an ra, a version 5 ra. checked by vin and engine/engine code.

will the kit you offered fit on this car
Old 25 May 2012, 09:03 AM
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The looks like the 266mm solid discs with the one pots , so if they are yes my mounting bracket will fit along with the 2001 onwards WRX 290mm vented discs and the subaru rear 2 pot calipers
Old 25 May 2012, 11:11 AM
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Originally Posted by Godspeed Brakes
The looks like the 266mm solid discs with the one pots , so if they are yes my mounting bracket will fit along with the 2001 onwards WRX 290mm vented discs and the subaru rear 2 pot calipers
sounds like you said i only need the dogbones. will i need anything special for the e-brake to work? the brake system i have is from a 2004 STI
Old 25 May 2012, 02:49 PM
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Originally Posted by ruckus racing
sounds like you said i only need the dogbones. will i need anything special for the e-brake to work? the brake system i have is from a 2004 STI
Yes because you said you had a Version 5 RA , if you did the STi rear brakes would just bolt straight on , now you have included a photo of what you have , it looks like you have the standard 266mm discs and 1 pot calipers as fitted to the early Impreza's so you will need the mounting bracket AND thicker E brake shoes here to fit the STi brembo rear brakes

http://www.godspeedbrakes.co.uk/~god...?id_product=91

Before you go and order any parts , measure the diameter of your rear discs to make sure of the size you have as standard , if you have the 290mm solid rear discs then you cannot convert it to STi brembo brakes

Cheers Ian
Old 25 May 2012, 04:21 PM
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Originally Posted by Godspeed Brakes
if you have the 290mm solid rear discs then you cannot convert it to STi brembo brakes

Cheers Ian
why not?
Old 25 May 2012, 04:27 PM
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Originally Posted by ruckus racing
why not?
Because the backplates are wrong to be able to fit a brackets in place , if you have these you have to change the backplates before you can convert it to 2 pot rear brakes
Old 25 May 2012, 04:39 PM
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do you have a picture of the correct back plates so i can compare to what i have?
Old 25 May 2012, 05:30 PM
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No I don't but they all look similar , the easiest way for me to tell you what you can and cannot fit it just measure the rear discs you have fitted on now
Old 25 May 2012, 05:36 PM
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bright and early tomorrow morning


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