Rear brembo upgrade-95RA
10 January 2015, 11:09 AM
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Rear brembo upgrade-95RA
Hi, I've just purchased a set front brembos for my 95RA, was thinking as the systems apart, I might as well sort the rears as well. My trouble is, I run an R180 rear hub, being the RA. I understand it would be best to fit sti rear 5x100 hubs, so everything fits without brackets etc, and standard hand brake.
Is this an easy job? And, I take it I'd need the suspension re-alligned?
Also, I hear that the bias valve is good to remove, but why, and again is this an easy job? I've got stainless hoses etc to fit at the same time
Another thing I've been reading, is changing the master cylinder for the later sti. Is this worthwhile?
Last question, as I still have the single pot rears at the moment, would the rear brembos be worth the hassle?
I've decided to keep the car now, and want to sort the brakes properly, as they've always been a bit naff, even with upgraded 4 pots, pads and disks.
Thanks, Tim.
Is this an easy job? And, I take it I'd need the suspension re-alligned?
Also, I hear that the bias valve is good to remove, but why, and again is this an easy job? I've got stainless hoses etc to fit at the same time
Another thing I've been reading, is changing the master cylinder for the later sti. Is this worthwhile?
Last question, as I still have the single pot rears at the moment, would the rear brembos be worth the hassle?
I've decided to keep the car now, and want to sort the brakes properly, as they've always been a bit naff, even with upgraded 4 pots, pads and disks.
Thanks, Tim.
10 January 2015, 11:39 AM
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Hi, I've just purchased a set front brembos for my 95RA, was thinking as the systems apart, I might as well sort the rears as well. My trouble is, I run an R180 rear hub, being the RA. I understand it would be best to fit sti rear 5x100 hubs, so everything fits without brackets etc, and standard hand brake. Is this an easy job? And, I take it I'd need the suspension re-alligned? Also, I hear that the bias valve is good to remove, but why, and again is this an easy job? I've got stainless hoses etc to fit at the same time Another thing I've been reading, is changing the master cylinder for the later sti. Is this worthwhile? Last question, as I still have the single pot rears at the moment, would the rear brembos be worth the hassle? I've decided to keep the car now, and want to sort the brakes properly, as they've always been a bit naff, even with upgraded 4 pots, pads and disks. Thanks, Tim.
10 January 2015, 11:52 AM
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I must correct myself. If you had a master cylinder from a 2005 onwards WRX (not STI) and combined it with Brembo calipers, you would have the highest theoretical amount of line pressure achievable at 1405psi compared to 1321psi of the classic master cylinder with 66lbs of force being applied to the brake pedal. Having said that, that's still a lot higher than the 1209psi the STI master cylinder produces. So in short, classic with Brembos all round should be better than the donor new age car they came off!
10 January 2015, 12:27 PM
#4
Hi, I've just purchased a set front brembos for my 95RA, was thinking as the systems apart, I might as well sort the rears as well. My trouble is, I run an R180 rear hub, being the RA. I understand it would be best to fit sti rear 5x100 hubs, so everything fits without brackets etc, and standard hand brake.
Is this an easy job? And, I take it I'd need the suspension re-alligned?
Also, I hear that the bias valve is good to remove, but why, and again is this an easy job? I've got stainless hoses etc to fit at the same time
Another thing I've been reading, is changing the master cylinder for the later sti. Is this worthwhile?
Last question, as I still have the single pot rears at the moment, would the rear brembos be worth the hassle?
I've decided to keep the car now, and want to sort the brakes properly, as they've always been a bit naff, even with upgraded 4 pots, pads and disks.
Thanks, Tim.
Is this an easy job? And, I take it I'd need the suspension re-alligned?
Also, I hear that the bias valve is good to remove, but why, and again is this an easy job? I've got stainless hoses etc to fit at the same time
Another thing I've been reading, is changing the master cylinder for the later sti. Is this worthwhile?
Last question, as I still have the single pot rears at the moment, would the rear brembos be worth the hassle?
I've decided to keep the car now, and want to sort the brakes properly, as they've always been a bit naff, even with upgraded 4 pots, pads and disks.
Thanks, Tim.
10 January 2015, 03:10 PM
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Hi, sorry meant to say it has the 3.9 diff, so the brake setup at the rear is a little different I believe?
So the master cylinder might be worth leaving alone then.
Cheers.
So the master cylinder might be worth leaving alone then.
Cheers.
12 January 2015, 08:59 AM
#7
nothing to do with the ratio of the diff in general however as the classic 3.9 was only ever available in R160 size then it confirms my post.............
you could simply fit adaptor brackets and oversize shoes to sort or you could use a JDM new-age R180 complete set-up (diff, shafts, hubs, etc.) as they also run 3.9 and your brakes would bolt straight on
you could simply fit adaptor brackets and oversize shoes to sort or you could use a JDM new-age R180 complete set-up (diff, shafts, hubs, etc.) as they also run 3.9 and your brakes would bolt straight on
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