E30 24v Swap E90 Brake Booster Install - Guide/DIY

[@salivous]

Great video, thanks for the tip! Worked great in my RHD e30.....lots of clearance between the booster and the intake manifold.

[@unixnerd23]

Had an E90 booster in the garage for 3 years waiting for me to do this mod! Thanks for the video.

[@WLguitarist]

I used an E83 X3 booster. All the holes for the hard brake lines are on the correct side. You still need the adapters for the brake lines like the above list. You will need a 2002 reservoir if you plan to use an M50 throttle body. If you are using an m52, you're all good with the stock E83 booster. I got the booster from a junkyard for 30$ and the fittings from autozone for around the price listed above.

[@chadp9133]

How did you get the E83 booster to fit? Did you have to modify the firewall? I bought and X3 booster/master and it doesn't have the same bolt pattern as my stock E30.

[@WLguitarist]

@@chadp9133 You will have to take off that plate with the 2 long boltscrew that is suppose to be bolted into the firewall. Then you will be left with 2 screws that would fit into your existing screw holes (Yes, only 2 bolts will be utilize). The shaft will have to be shaved/narrowed down to the right size so you can reuse your E30 connector, I used an angle grinder. You will have to use your stock E30 booster and measure how much to take off the shaft of the new booster and where the E30 connector will seat so that it matches with the brake pedal travel. Lastly, you will have to rethread the shaft to appropriate threading. Other than that, it's pretty simple and it works really well. I've been using this setup for 2 E30s already and I love it. I honestly feel like the brake system feels a lot better, a bit more modern feel.

[@craigvalentine1547]

I'm about to do this on my s50 swap E30. Same booster set up. Did you find the brake feel is much better. Main reason for my swap is my wilwoods feel Wooden and underpowered

[@WLguitarist]

@@craigvalentine1547 I am not sure about other peoples setup but for my setup it feels better. I don't have ABS, so I am unsure how this booster will do with cars that have ABS.

[@tjbender81]

Where did you find the brake line extensions, there no part number listed and I haven't been able to find them...

[@DeathWishPassion88]

He's baaaaaack

[@tnisc]

burnouts coming soon, I promise!

[@JD-ml7cg]

I did this before. it fits right in. only thing i didnt like was the pedal was very hard

[@JAYBOLA1]

Any links for the UK guys? I can't seem to get any res or reducers! I have the E90 booster already but stuck trying to find these last parts

[@ChioMusic100]

Great work, been wanting to do this to my E30... Thank you for sharing the parts list and vendors.

[@snailtrailperformance6072]

Factory e90 Clevis pin works no need to modify the booster literally everything bolts right up… other then that great video

[@Peterdb917]

So i dont need to shorten the clevis?

[@edwindelgado1146]

I just dis it and I love it, I was able to reuse the lines that came with the booster and it looks awesome the only issue I have is that I need an adapter to go from 12mm to 10mm. Still looking.

[@phoenixmillsap21]

feels great. definitely a big upgrade.

[@mehmetdilekify]

Great video, just got one to put into my e30 320is with the stock engine. How is the breaking effort now after the upgrade, is it easier to stop the car? How is the vacuum hose setup, just connecting it to the existing no-return valve?

[@xTheRockStar21x]

You absolute fekin GEM

[@_Izak_]

The T piece can be found on any E30 in the rear where the main to rear line splits to the rear brakes.. Part # 34341111435

[@ChioMusic100]

nice, get get one from a wrecker.

[@aconstantdread5677]

Fuck that T fitting. If you ever tried taking it out of a rusted out e30 you know the damn thing is a pain to deal w

[@connormr1036]

i bought these rubber grommets and they're different from the ones u have, they leak fluid slightly

[@Dallo422]

amazing vid, thanks so much!

[@earlsebastian9209]

Can you use e30 master on e90 booster?

[@larheimann4195]

Great! What about the screwholes, were the brakebooster is fixed to the e30? It's not similar. Did you drill new holes into the E30 sheet to fix it right in place? Greetings from Germany

[@andrewgoogle365]

Hi, could you give me the link to buy m12 m10 adapters? Thanks

[@ronnieelbers7430]

Why didnt you use RHD master brake cilinder? It looks better for a LHD E30. E90 master brake cilinder is sided. I am planning to do so, hope I dont miss anything.

[@kwaynr1301]

How did it go?

[@JAYBOLA1]

What's the part number for the reservoir?

[@kylea8807]

But as you were saying in your video getting a longer clevus pin you would also have to fill the gap that’s in between with washers also?

[@riodonR1]

Wats up?.. this is a great DIY.. u think its possible for a JZ build? Rather than a brake booster delete?

[@lmkamran8403]

Autozone doesn’t have the fittings you listed. Can you give me part numbers to them?

[@ronnie5211]

Hi. Do you have a picture when it's all finished? The master cilinder is pretty close to holes where the throttle body goes. How much space do you have?

[@pepeeltoro1599]

Im doing it right now but I can’t find the m10 to m12 fine thread bubble flare adapter fitting (3/16). Or the m10 3/16 tee fitting by any chance can you provide me with the parts number. Love the idea. !!! Thank you!!

[@JAYBOLA1]

Yeah same as me. If you Google m12x1 to m10x1 reducer some are on ebay but long postage

[@stevehiggins3847]

Has anyone tried this for an E46? Putting in a 2JZ and the intake hits the stock booster.

[@poppeddropped7699]

Ive literally just ordered all of these :) Question is the master cylinder from the e30/e36/e46?

[@tnisc]

Keep the master thats already there!

[@1importedguy]

I think if you buy a x3 or e60 booster and master cylinder the ports are actually facing away from the engine, not sure if the boosters are the same size though

[@TylorSwain12]

Was the auto to manual swap hard to do? Thanks

[@robbielong1682]

Thinking of doing this for my m52 swap, do you have the part number for the replacement rubber grommets?

[@13leadfoot]

Nice DIY, thanks. But how was the test drive? Is the brake feeling ok?

[@tnisc]

Still haven't had the chance to drive it outside of my driveway, but they felt good in my driveway! lol hopefully will have some more videos driving this car soon

[@lukaseaman1990]

Still no test drive, is this 25mm master cylinder?

[@kize32]

What is the benefit of doing this other than replacing a rusted old booster? Does it brake like a modern car or you still have to press hard to stop

[@tnisc]

It brakes like a modern car!

[@eggmcnog]

Cannot find bubble to bubble adapters from m10 to m20 at all

[@heikohorz2709]

There is no need to change the rod end. It fits right in with the stock pin from the E90. I will never understand why a lot of guys are threading and welding the living shit out of this poor little piece. :D

[@maythom]

Hi, did you use the booster with ABS?

[@heikohorz2709]

Nope, but a friend of mine uses it in his ABS equipped E30. Doesn't make any difference.

[@craigchetty7234]

@@heikohorz2709 doesnt make any difference? Please clarify? Do you mean that is works, but is the same as the standard e30 booster?

[@ijt540]

Thinking about doing this. What did you do for the hydraulic clutch cylinder. It uses the break fluid. So how did you make that work?

[@elkevanhelke7875]

There is an output at the mentioned BMW 2002 reservoir - it will feed the clutch cylinder.

[@phoenixmillsap21]

im currently doing the swap. which port on the e90 master is for rear and which is for fronts?

[@Pro100Ickpa]

Did it need any hammering on the back side to fit other two mounting bolts of the pedals ?

[@tnisc]

Nope! Just slid straight into place

[@tylervoyles764]

How did you flare your brake line extensions? Did Autozone do that for you or do you have the proper tool?

[@tnisc]

I bought two 8 or 12” brake lines with flare fittings on them already, and then bent them to fit the way I needed them. They were just universal ones from Autozone

[@mikethefiend1567]

Are the brake lines bubble or inverted ?

[@hamzal89]

hello, Could it work with leaving the e90 Reservoir ? I dont see the point of changing it. Is there a reason that I would have missed ?

[@tnisc]

yes it will hit the intake manifold or vacuum line that goes from the booster to the manifold

[@hamzal89]

Thank you for your answer it makes total sense

[@lebogangmokogonyane8068]

Can you do this on a e36 328i auto

[@cirikburak]

Hey !The given part number is not correct for the resorvoir.The correct one is 34 32 1 112 400 Ate

[@tnisc]

Did you try searching that part number? I just did and nothing showed up. can confirm its 399, not 400

[@ronnie5211]

@@tnisc 399 is correct for the resevoir. I got mine today.

[@NyxNick]

400 one is without clutch feed, 399 is with.

[@ImJoel]

how does this feel driving? i might have to

[@tnisc]

I'll let ya know next week when I finish up the M52 swap and get her on the road!

[@lukaseaman1990]

tnisc did you test it, how is the feel?

[@tnisc]

@@lukaseaman1990 Actually should be testing this week -- awaiting a couple more parts to swap. Big E30 update video coming!

[@lukaseaman1990]

We are excided !

[@eamoncp5924]

Can it be any E90 model?

[@kylea8807]

Sorry for the last ditch effort question lol

[@Michaelbbmw02]

Can somebody tell me the paranimfen of the gommets?

[@lucusc4002]

Hey this isnt really for the creator of this video, but will this booster possibly with a 2JZ and aftermarket manifold if anyone has done this before id love to know. I have a 2J and im thinking of putting it into an e30 so any help would be appreciated!

[@josemanuelgonzalezarias1587]

hello, do you drill? and do you know the refefence part numver of the reservoir fluid tank? thanks a lot

[@labeebrahman7948]

Why did you replaced the reservoir?

[@tnisc]

It hit the intake manifold vent line

[@maythom]

Tell us how it feels damn it😁

[@cowboy9145]

@Vihaan Gerald stfu

[@cowboy9145]

@Mauro Gavel stfu

[@studentsE30]

So has anyone found the perfect brake tank?

[@tnisc]

That 2002 one should be the best

[@studentsE30]

tnisc for me it seems its out of its place, not a huge fan of those side mounting points. 🤷🏿‍♂️

[@tnisc]

I cut them off and it looks good now. Got a newer clutch hose that was much longer and was able to trim to size

[@cirikburak]

The given part number is not correct! The correct one is 34 32 1 112 400

[@shadowencounter]

Did you finished the swpa? How it feels to break with this booster? Did anyone did this to M54 swap and it fits with the intake?

[@kylea8807]

Wouldn’t it be possible to use a bolt and nut and washers as spacers to connect the e90 brake booster to the pedal assembly?

[@unixnerd23]

That was my first thought. The clevis pin lets it all move freely, a nut and bolt would put tension on the pivot unless you used a bolt with two nuts tightened against each other (and use nylocks or thread lock). It's also more compact in a tight space.