M50 swap that will blow your mind.

[eternal24k]

does the original reservoir only interfere with the TPS on an M50/S50? Would the top mounted S52 fit fine?

[Noshow20x96]

Some updates

The smaller reservoir that you can buy will fit in the master cylinder with the smaller grommets but the clutch master cylinder hose would have to be extended and the e9x reservoir can fit with some “massaging” with the m52/s52

Here’s some pics.




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[Staszek]

Great pics thanks for the update! One question, is there a negative effect from having a smaller reservoir?

[pazi88]

Where is that smaller resevoir from?

[Noshow20x96]

Where is that smaller resevoir from?

I posted it up on the op

You can also get it for way cheaper on rmEuropean.com


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[Noshow20x96]

Great pics thanks for the update! One question, is there a negative effect from having a smaller reservoir?

No but when you have a brake leak it will just run out of brake fluid faster lol


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[Staszek]

No but when you have a brake leak it will just run out of brake fluid faster lol


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Hopefully, with the new lines, I put in I won't have a leak lol!

[Staszek]

BTW does any sensor cap fit? Like the E92 cap will fit the new smaller reservoir.

[Noshow20x96]

BTW does any sensor cap fit? Like the E92 cap will fit the new smaller reservoir.

Yes. The stock e30 one works.


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[razo-s.supra]

Functionality update

Took it for a short drive (no exhaust yet after headers). Stomped on my brakes a few times in isolated safe areas. This booster upgrade is the shit. Feels like a newer car. Yet I'm sure my old e30 booster has definitely seen better days. Thanks for the photo cred brotha and being adventurous enough to find this booster option!

[jwal]

Anyone look at the X3 booster? It has the lines on the same side as the stock E30 master cylinder.

[E30335i]

Anyone look at the X3 booster? It has the lines on the same side as the stock E30 master cylinder.

The n52 swap that’s has its own thread has went that route.


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[The Dark Side of Will]

Great pics thanks for the update! One question, is there a negative effect from having a smaller reservoir?

Depends.
If you have a large piston volume in your BBK, and top off the reservoir when you have new pads, then you might drain the reservoir as your pads wear thin. If you're in this situation and top up the reservoir along the way, you'll overflow it when you push the pistons back to install new pads.

[jwal]

The n52 swap that’s has its own thread has went that route.


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Oh sweet, I hadn't seen that. I'll have to check it out, thanks!

[eternal24k]

Anyone look at the X3 booster? It has the lines on the same side as the stock E30 master cylinder.

prepping to install an X3 in mine soon