jamal

Pretty sure you can't do that.

What are stock on an SS? The SS brakes are way beyond my L brakes. The L brakes suck really bad. I love the stopping power on the SS.

 

They are the same size as an RS or older LGT but also have vented rear rotors. The best OEM upgrade bias-wise for an SS is 4-pot fronts. Legacy777 made a bias calculation spreadsheet awhile back and I have a listing of all the different stock brakes on the bbs and nasioc.

no change in bias going from the LGT/RS sized brakes.

 

The MC has nothing to do with it.

 

The change in bias is dependent on the size of the pistons in the caliper and the effective diameter of the rotor. So bigger/more pistons = more brake torque, and bigger rotor = more torque.

 

Also, the WRX 4-pots have pretty much identical brake torque as the RS/LGT sized brakes because the pistons are smaller even though they use a bigger rotor.

it is actually very easy to bench bleed an MC. stick it in a vice, run a couple short pieces of silicone tubing from the ports into the reservior, fill with fluid, pump repeatedly. takes 2 min, makes the whole process go much more smoothly.

yes. with an extra very.

 

chances are you won't be able to properly bleed it at all and will end up with a lot of air in the abs module. And I have actually experienced this, where the only way to get things to work was to pull the MC and bench bleed it.

There is a 1-1/16 VDC master cylinder, from the 00-04 H6 VDC Outback. The only problem is that one of the ports is in a different place and it still requires the older style booster. Also the pushrod part seems different:

 

http://jamalb.net/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=2777&g2_serialNumber=1http://jamalb.net/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=2779&g2_serialNumber=1

 

Nissans use an external check valve for the booster and they come with the cosworth intake manifolds. I think part 47478-04F03 will work.

 

As far as bleeding goes, you should really, really, really bench bleed the MC before installation.

well my headgaskets only leaked when I got the car with 130k, and they were original crap coated gaskets. Then I put in the new MLS gaskets (over the course of one night without any machine work) and didn't have a problem until I spun a rod bearing almost two years later. So when it came out for that I had to replace the crank, rods, pistons (with used stuff from my machine shop), and got the heads rebuilt and resurfaced while I was at it.

well, I like it now that it has new headgaskets and new bearings, rings, rebuilt heads, seals and timing stuff etc.

 

miles are at 188k to answer the original question

what's with all the 2.5 hate? My motor's only been apart twice!

 

 

... in less than 3 years

it needs to be from an older car unless you want to swap the brake booster too. As far as I know the LGT and SVX were the only cars to get the 1 1/16 MC that will swap right in. If I was going to go through the trouble I would probably also try to find a single diaphram brake booster. I *think* that most 1st gen imprezas came with them and they are also on some 2nd gen Legacys.

 

centric part numbers are:

 

130.47023 - abs LGT MC (need to confirm it's actually 1 1/16)

130.47019 - non-abs SVX MC

I think the GT has a 1 1/16 MC which would be good and means less pedal travel and more effort- i.e. better brake feel. If you don't have ABS the SVX non-abs master cylinder is the way to go.

yep brake bias stays the same as does the piston surface area. You're increasing brake torque and heat capacity only.

 

When upgrading cars with 1-pot fronts you do end up with more piston area and pedal travel and bias issues. With my old 93 I had wrx fronts and h6 rears, which did maintain stock bias, but there was a noticeable increase in pedal travel since the piston area had gone up on all four corners. I think that car only had a 15/16 MC.

 

legacy777 has a very handy brake math spreadsheet on his site somewhere with all this info.

I have this brake setup and changed out both the calipers and brackets front and rear. Our cars use the mounting system with one bolt and one pin, where as the newer ones use two bolts to attach the calipers to the slide pins.

 

Unfortunately I just threw out a set of WRX front calipers

well I wouldn't charge less than an hour for that, and that's about what an hour of labor costs.

As of 1/01/2009 States in the rules. think it less prize moeny if a team wins and is not on Koni's. Will Koni devolp a indpened shock for the Legacy and not just the insert.

 

the rear konis are the whole shock, but I don't see the point in them going through the process of making a whole strut with tabs and stuff when they already have an insert. It's money better spent on the internals of the damper.