HELP! Re: E32 735 Master Cyl&Booster

[318isbmw]

By bracket, you mean the piece between the firewall and the backside of the booster? I just hope that the booster will fit under the manifold, I can modify the shaft easily enough.

AFAIK you just have to throw the e30 end to the rod on and it fits perfectly.
Only thing I'm not completely positive is regarding if the master cylinder fits. I've got the lines and all connected, gonna get bled in next few days, but still not sure if it will clear the motor.

[etxxz]

to both of you:
that is what i meant by the MC/booster fitting. they both clear the intake but the brake fluid resevoir on the other hand is where the problem lies with this setup. I have not droped my engine in yet, but based on pics on this forum it almost seems like there's enough room to not have to remote mount, but be prepared to do so...i wouln't install the MC or resevoir untill my engine makes itself at home.

[318isbmw]

Mk, thanks for the response, I understand now. Thanks. I'll know for sure this friday night what fits or what doesn't. I'm hoping it all fits w/o a remote reservoir, and I doubt i will need one. The mastercylinder is about the same size as the e30 one, as well as the booster is almost identical to the ix one which is so commonly used, so only issue I can foresee is the actual reservoir as you mentioned.
Thanks

[Bmjpv]

24v booster /25mm master

I continue to read about 24v swappers hunting for the perfect power booster. I did upgrade to a 25mm master (750il) but kept my orginal booster !! And you should too! Just reshape the contact area on the intake manifold It's sooo easy to do ,, Please check out my threads and pics about I handled this small problem . joe

[mcclaskz]

318isbmw, do you mind taking a few pics when you are done?

[318isbmw]

318isbmw, do you mind taking a few pics when you are done?

I definitely plan on taking pics of that part for sure.

[chuck90m3]

if it hasn't already been said, you will need the 325ix fork that attaches to the pedal. we found that out the hard way. part number 9 on the diagram

[etxxz]

Here's what i have found, keep in mind i have an obdII s52 with m50 mani, s52 Throttle body and s50 intake boot:

735i booster, 735iMC:
fits great even with no m50 manifold shaving or spacers on the engine mount. You need to swap the fork that attaches to the brake pedal (#9 on pic above) from your original e30 booster .
BAD: theres some space on the back, but i'm using that for the x20, wiring adapter + other electrical, and throttle cable. You WILL need to remote mount your brake resevoir (used hard plastic lines from a newer bmw what a perfect fit!), space is tight for both cuise control and throttle cable, but it all fits, just a matter of orienting things properly.

does it work? idk, haven't tried it, but i'm confident it will all be as i expect. Total spent: less than $30 between booster and MC. viva u-pull-it!!

[B3M2W5]

If you already have the booster it should fit and mount up alright it looks the same but if you want to be sure i would go with the IX booster its much easier, I have one been driving my car for about 3 days now not problems with clearance.
I shaved my Back fins on the mani really nicely, i put it on and found i wouldnt have needed too. I believe you need to with the 2002 booster, oh well to late now.
But the IX booster makes things a lot less complicated...Maybe i shouldnt say that persay it just makes things really nice, you dont have to mod any thing at all it just plugs in...

[etxxz]

^^ isnt the IX booster still kinda separated from the wall? or mounts back to back like the original m20 booster did?? if this is the case, the IX booster is the way to go although the 7'ner works fine (just incase you can find it mad cheap like i can all day, anyday)...would save a lot of "Tetris" play and complicated routing of things...or you can just throw shit together and call it a day.

i wonder if either setup, whether e21, porshe or 7-series yields any braking difference, or atleast some when upgrading to bigger brakes...

[318isbmw]

The IX booster is the same as the 735 booster. It sits way out from the wall just like the ix does. I've got mine mounted up in my e30 w/ the m50 in place. I have the 530 remote master cylinder on the way from the dealership cuz I couldn't find any around from anyone used. Oh well, need to get the car running. The 735 reservoir would not work with the m50. The throttlebody goes right infront of the reservoir so therefore you can either have the throttlebody all there w/ no reservoir in place or reservoir but the throttlebody won't fit in place.

[B3M2W5]

I know their the same but the IX just makes things a little less complicated if you dont have the means to weld or what not for moding the shafts. I just found the oil pan booster and dip stick for about 120 for all of it and said hey works for me no moding.
It all fit in place but yah you have to have a remote res. mines kinda.....Crafty if you wana say most laugh but it works so i dont care.

[etxxz]

^^ you do not have to weld/mod the shaft. just unscrew #9 (from pic above) and screw back on the one that came with your car...you would have to do it anyways with the IX booster just to adjust/make sure the brake pedal is where you want it.

so never mind, IX and 7'er will both give the same "problems" that i listed above. anyone have an answer to the brake performance question i posted in my previous post?

[mcclaskz]

I can tell you that it fits fine! Now I have to figure out what resevoir to use. Any ideas? Is anyone remote mounting that one from the 5er? Any #s for that?

[mcclaskz]

I don't know if anyone is still watching, but I found this resevoir that works perfectly in my master cyl. :http://www.pelicanparts.com/cgi-bin/...rake+Reservoir
It was $43 and it fits well in between the 735 booster and the big 3.5" silicone intake boot I have on my car. It also has 2 sealed outputs for the clutch. It is tiny and I can't imagine it not fitting in a tight engine bay. Now I am on to fitting the water hoses. I am close!