DosRenshos

i knocked this out today. The above instructions were great.

 

as an fyi, I got a moog also. Ordered from Rock Auto.

What is your issue with mityvac units?

 

With mine, I would get a lot of bubbles in the vac hose that i assumed was air being pulled thru the bleeder threads into the caliper and out of the bleeder. I was never sure if it was that or just a bad vac hose seal on the bleeder but I never fully trusted it. I trust my Motiv power bleeder completely.

the overall size difference was minimal. The booster is just a little bit larger in circumference by about 2 cm. length did not seem to change

I prebled the MC on the bench (covered the holes with plastic stoppers and let the fluid squeeze around them) so there were no major air pockets and then bled as normal with the caliper valves once it was in the car. Had no issues but I used a power bleeder and lots of fluid.

Yup. Parasitic drag from the ac comp making it harder for the engine to turn. So when the engine stumbles due to misfire it drops rpm quicker then without ac.

One week in on my swap and i am very pleased. Pedal travel is much better. Response is soooo much better, and feels much more accurate. I like that i can feel the pad takeup and that it takes just a brush with my toe to get the pads to the rotor instead of the 6ft it felt like before.

 

Install went great. If i didn't have a 5yr old wanting my attention every 2 minutes i would say that i could have had the job done in 2 hours max. The only difficult part was pulling the old booster out (it didn't want to pop past the the plumbing).

 

Some thing to think about:

 

-the silver line that's in the way is an aluminum A/C line so try not to bend it to much or you will have refrigerant leaking out.

 

-when you get ready to pull the old MC and booster, i found it easier to unbolt and separate them from each other. BUT, to get them separated easily, step on the pedal to remove any residual booster vacuum. The legacy booster vacuum is open to the back of the MC so they will be stuck together (there is an o-ring seal between the two while your new booster is a separate sealed unit from the MC). I also separated the MC from the booster going in.

 

-when both boosters are out, measure the distance of the clevis/pedal pin hole to the back of the Legacy booster and duplicate that on the new booster. This saves you from having to adjust the pedal travel and spacing in the car.

 

-the new WRX MC is of course bigger in OD by about .5 inches and sits flatter against the firewall. This means that it is VERY close or actually touching the brake lines that run up the back. Protect these from rubbing thru.

 

-Spend the $60 and get a pressure bleeder. I'm kicking myself for not buying one earlier. It took longer to jack up the car than it did to bleed the system.

 

I'll add more if i can think of anything.

The car has always idled rough but i got P0302 two days ago. I didn't have time to sort it out myself so i dropped it off at the dealer. They found nothing obvious. i had done new plugs about 6K ago with no discernible change. Leakdown was good to very good but comp test was roughly 1. 140# 3. 130# 2. 120# 4.120#. I'm a little concerned about the spread.

 

 

 

The dealer said that there was possibility of a burnt valve. Code was cleared and the car seems to idle and run fine so i guess we'll see...I may try to get into the cylinder thru the plug hole with my bore scope to see if i can see anything.

 

 

My question is what does the ecu look at and use as a trigger for the code?

How is this working out for those that did the swap? Still happy? I've got mc and booster sitting on my bench, but wanted to get some opinions from early adopters after the " new mod is awesome" glow has worn off a little.

 

 

Thanks

I see a fair number of 05' + Legacys in the Milwaukee area on my way to and from work in Cudahy. Not many of them appear to be owned by forum dwelling enthusiasts.

 

Mkegt, I'll wave at the 3rd ward as I bounce past on the Hoan.

Turn 5 will certainly put some heat into them.

Maybe Dads "other" family...:-)

Silver LGT Wagon with License plate "PAGEL" going towards the Hospital in Waukesha.

 

Debadged...

 

 

This is creepy. My last name is Pagel and I own a silver wagon but its plate doesn't say Pagel and its never been in Waukesha.

 

i must find this person...