Liberty master cylinder in L series with stock L discs all round...

[El_Freddo]

G'day all

I'm in the process of gather some parts for a serious over haul on Ruby Scoo's brakes. So far have new disc rotors and pads for the front, rotors only for the rear but will be grabbing some rear pads later this week. I have a second set of callipers to pull apart and clean up/replace seals etc on to replace the current units - LHS one in particular as it has no dust seal at the moment...

So I've been thinking of having the L series master cylinder overhauled in the process as well, then I got thinking about dropping a liberty master cylinder in there thinking that it might be larger than the original L series unit.

Thoughts on this? Should I use the matching Liberty booster as well or just have the L series unit overhauled and leave it at this?

I'm also thinking of new rubber brake lines which then got me thinking about a set of braided lines that are longer for the 3 inch lift so it will all very comfortably sit in there without dramas. Over kill?? The $$$ are an issue at the moment unfortunately - about to shell out for season's ski pass, dentist visit and rego in the same week

Ruby Scoo now has something over 446xxxkm on her, probably a good time to do something about the brakes! Maybe a 4 stud crossbred kit for the scorpions?! - if possible it would be a shame to have purchased most of the gear needed for the stock brakes...

Is there anyone that could sort me out with some longer braided lines that has access to an L series to get all the appropriate lines made up for a discs all round setup? Living up at hotham makes it difficult to drop it in to a brake place considering the nearest one is most likely over 2 hours away...

Cheers

Bennie

[guyph_01]

Hey Bennie,

I've just went over this in my old thread:)
showthread.php?t=14994
Page two has some of the new comments.

Also i've found that the gen2 liberty have the master cyl that has three outlets exactly like the L series and thus you don't have to block the fourth one the gen1 lib have.

I've decided to drop the whole unit, booster and master from the gen1 series1 in.
You can see and read some comment on my thread page 35
showthread.php?t=13992&page=35

Like you and everyone says, DO A SEARCH..., hehehe

Anyway thats all i can tell you, it won't be tested for a while until i get it all back in and running:)

[El_Freddo]

But you're dropping that booster and master cylinder into your L with a cross bred kit, meaning that it should match your brake's calliper's requirements.

I just want to make sure that I'm not changing parts that will make my brakes do weird things such as give little to no feel in braking power then all of a sudden lock up with a little extra pressure on the pedal.

Thanks for the links though

Cheers

Bennie

[guyph_01]

Yeah true...., oooups didn't think of it that way. Can't really help then:(

[rtcb65]

G'day all

I'm in the process of gather some parts for a serious over haul on Ruby Scoo's brakes. So far have new disc rotors and pads for the front, rotors only for the rear but will be grabbing some rear pads later this week. I have a second set of callipers to pull apart and clean up/replace seals etc on to replace the current units - LHS one in particular as it has no dust seal at the moment...

So I've been thinking of having the L series master cylinder overhauled in the process as well, then I got thinking about dropping a liberty master cylinder in there thinking that it might be larger than the original L series unit.

Thoughts on this? Should I use the matching Liberty booster as well or just have the L series unit overhauled and leave it at this?

I'm also thinking of new rubber brake lines which then got me thinking about a set of braided lines that are longer for the 3 inch lift so it will all very comfortably sit in there without dramas. Over kill?? The $$$ are an issue at the moment unfortunately - about to shell out for season's ski pass, dentist visit and rego in the same week

Ruby Scoo now has something over 446xxxkm on her, probably a good time to do something about the brakes! Maybe a 4 stud crossbred kit for the scorpions?! - if possible it would be a shame to have purchased most of the gear needed for the stock brakes...

Is there anyone that could sort me out with some longer braided lines that has access to an L series to get all the appropriate lines made up for a discs all round setup? Living up at hotham makes it difficult to drop it in to a brake place considering the nearest one is most likely over 2 hours away...

Cheers

Bennie

If i got it right, if you go with a Crossbred kit / all round disks, They come with the rear brake lines. So only fronts to sort out.. We personally put a liberty booster with , i think it was a impreza master cylinder ( has the 4 out lets , just have to block the 2 that dont match your lines, which the Crossbred kit comes with , the blocking bungs ) on the M.Y. of ross's when the turbo went in it . Made a nice difference. We did have the rear disks though. Which made a little difference , but the big difference came with the booster and master .

[Venom]

But you're dropping that booster and master cylinder into your L with a cross bred kit, meaning that it should match your brake's calliper's requirements.

I just want to make sure that I'm not changing parts that will make my brakes do weird things such as give little to no feel in braking power then all of a sudden lock up with a little extra pressure on the pedal.

Thanks for the links though

Cheers

Bennie

Bennie i talked to a brake bloke some time ago now about this. I was told upgrading the master cylinder (to a larger bore and therefore pushing more fluid for same pedal travel) will result in a shorter and firmer pedal. Because the pedal travel is reduced you may have less modulation, which you might find undesirable. Master cylinder change will do nothing for braking performance unless your current one is not sufficient, e.g. you've upgrade to larger callipers that require more fluid to be pushed. A larger brake booster just increases the fluid pressure on the pistons, so like master cylinder upgrade it will reduce modulation because more pressure/per distance of pedal travelled. So if you upgrade both you'll get a firmer pedal that requires less distance travel to lock-up, and only a bum in seat improvemet to braking.

So i would think stick to the L series setup untill you go for a crossbred kit, then convert to a whole matching brake setup of callipers/master/booster.

[El_Freddo]

If i got it right, if you go with a Crossbred kit / all round disks, They come with the rear brake lines. So only fronts to sort out.. We personally put a liberty booster with , i think it was a impreza master cylinder ( has the 4 out lets , just have to block the 2 that dont match your lines, which the Crossbred kit comes with , the blocking bungs ) on the M.Y. of ross's when the turbo went in it . Made a nice difference. We did have the rear disks though. Which made a little difference , but the big difference came with the booster and master .

Rick, was this setup with the stock MY brakes up front and RX rear discs? Sounds like the way to go - if I can find an impreza... Libertys are dime a dozen in the yards down here, you don't seen many imprezas or foresters either

Bennie i talked to a brake bloke some time ago now about this. I was told upgrading the master cylinder (to a larger bore and therefore pushing more fluid for same pedal travel) will result in a shorter and firmer pedal. Because the pedal travel is reduced you may have less modulation, which you might find undesirable. Master cylinder change will do nothing for braking performance unless your current one is not sufficient, e.g. you've upgrade to larger callipers that require more fluid to be pushed. A larger brake booster just increases the fluid pressure on the pistons, so like master cylinder upgrade it will reduce modulation because more pressure/per distance of pedal travelled. So if you upgrade both you'll get a firmer pedal that requires less distance travel to lock-up, and only a bum in seat improvemet to braking.

That makes sense Rhys and could be the reason why Gee had his issue with the lock-up in his old L series...

So i would think stick to the L series setup untill you go for a crossbred kit, then convert to a whole matching brake setup of callipers/master/booster.

As much as I'd love a crossbred setup, now that I've got the schmick scorpions I don't know that I want to go to 5 stud... Might have to drop Jeff an email query about a 4 stud crossbred hub kit, if there's enough meat on the total diametre of the hub to fit 4x140 stud pattern I don't see why the hubs can't be redrilled as well as the discs that go over the hubs. Could be a great way to overcome solve the braking issue altogether and keep the scorpions...

I'd still like to hear about braided lines and the advantages other than "cool looks"...

Cheers

Bennie

[rtcb65]

[quote="El_Freddo"]Rick, was this setup with the stock MY brakes up front and RX rear discs? Sounds like the way to go - if I can find an impreza... Libertys are dime a dozen in the yards down here, you don't seen many imprezas or foresters either

Hey Bennie,

It was on L series front disks and L series rear disks. We just had it in an M.Y. We had a liberty booster and a master from either a liberty or alike. Just have to make sure , ( for an M.Y. ) it has the 4 out lets on the master to match the standard pipes, and then just block the other 2 off.