Relocated stock booster

[Roysneon]

Has anyone on here slotted the holes and moved their stock booster over instead of replacing it with a smaller one?

Also is it true that the early models had smaller boosters to begin with?

[StereoInstaller1]

1. Yes
2. No, or at least not mine.

[Roysneon]

OK, I read about both points on e30tech, so I just wanted to see if there was any validity to them. I definately think I'll just move my booster over then and trim the fins on the intake mani unless a good deal on a 944 booster pops up.

[M-technik-3]

Early models seem to have bigger booster in overall diameter but thickness they are smaller.

[StereoInstaller1]

My 3/87 325iS has the same booster as my 9/89 325i.

Either one could have been replaced in 20+ years though.

[hoveringuy]

Slotted and moved. I think I got about 1/2", probably not enough for the stock booster but it helps.

[89325iturbo]

I moved mine over, and shaved the fins. There's not much clearance, but I could of moved mine a little more. I think 5/8 ths is about the limit.

[e30s50dan]

Make sure you pedal doesn't get in a bind. When I installed my IX booster. I slotted it a little lower which gave room for the e34 mc/resv which gave room for the intake boot. TAHDAH!!!

[Roysneon]

Hm. So I guess even with trimming the fins and slotting the holes I wouldn't be able to use the stock booster on my 84 318. Time to look for a 944/Ix booster.

[e30s50dan]

Ive owned/raced a few 944's and the brakes are ok,but I really like the feel of my IX booster over the 944.

[matt]

The IX booster is definitely the way to go.

[xwill112x]

i have an ix booster, going to try using the stock one first, if i cant get it to fit, then ill use the ix

[M-technik-3]

forgotten but the iX booster is pretty much the same as the 530/540 setup in the e34 correct?

[White325is]

I slotter the booster and moved it over on 3 different swaps I have done.
Moved it to the right 1/2 inch and all was well. I have also notched the intake and plastic welded a new piece in on 2 different swaps and that worked well also..
I would def just go with the ix booster. The braking power is much nicer..

[M-technik-3]

When I did RX7 calipers and the e21 booster it was ok but was too spongy so I tried a bigger MC and that just made the pedal harder. E21 booster is good in a pinch but iX seems to better as it has more vacuum.