Rebuilding a BMW M20B25 Engine In 15 Minutes! . . . .and Delivering the Car To Our Client!

Hey Bimmer Bros! We really want to apologize for the lag on the uploads lately. we have had HUGE changes happen with SBB and are trying to make things happen behind the scenes. We will update everyone very soon. Today we show you what we did for one of clients. We were contacted to bring his e30 back to life and that we did. A full engine rebuild was in order for this beautiful M20b25 and it went through such a huge transformation!
It purrs so smooth and has just the right amount of tick in that valve train. the POWER WAS RESTORED!
Please follow us on instagram - @superbimmerbros
and check out our website for parts, merch and DIY videos!
Superbimmerbros.com

[@fonixracing5286]

Best BMW Engine no Cap

[@superbimmerbros]

Hell yeah #m20squad 🙌

[@eddieflores2852]

Outstanding job vatos!!! I am gona have to buy some merch now!!! lol Stay blessed!!!

[@ПанурТевтонський-д8й]

good job!😉

[@markuskalytta9326]

Top work . Greetings from Germany.

[@superbimmerbros]

Markus thank you for the comment and compliment! We really appreciate it 🙏

[@JonAllie27.]

Oiling the back side of bearings is a no no and spraying copper gasket spray on to the block, pistons and bores is never a good idea. You could have easily sprayed the back side of the head gasket.

[@superbimmerbros]

Thanks for the feedback man! We have since then stopped oiling the back of the bearings as you said and cut back on the copper spray all of our recent builds mostly get the block skimmed so no real reason for the spray anymore. Cheers 🙏

[@armenianman5826]

Another good video. Thank you. I fund 1983 BMW 733i with smashed right front corner. The owner is asking 3000$ he said the frame need to adjust it's another 400$ he says. it's auto tranny need front right panel, hood and headlight to replace.

[@77alexander]

Hello nice video, I have a 1990 E34 with the M20B20, can this be turned into a M20B25 or there is not point of doing it?

[@superbimmerbros]

Depends on what your goals are. Are you just wanting more performance?

[@77alexander]

@@superbimmerbros yeah nothing crazy just to give it a 30-40hp in order to have more power from the beginning

[@wesleyfontaine3438]

Great vid. I am struggling to find info on m20 b25 engine. Does the m20b23 cylinder head work on a b25 bottom end (does valves touch pistons?) Cannot find a b25 head in my country. My b25 head broke a valve and cracked the head. Any info would helpful.

[@superbimmerbros]

Wesley thank you very much for the comment! We have never seen a b23 head in person to know if it is interchangeable. What country are you in? We might be able to help you source one! 🙂

[@wesleyfontaine3438]

@@superbimmerbros Thanks for the reply Im in South Africa. I just compared the two heads basically the combustion chamber of the b23 head has a step that would hit the raised dome of a b25 piston. Looks like either machining the piston or machining the step of the head away. Not sure which would be better.

[@90MinutenLang020Damsko]

I did not see that🙈 putting oil on both sides of the crank bearings?

[@superbimmerbros]

Of course! We have never had an issue doing so. 👍

[@90MinutenLang020Damsko]

@@superbimmerbros i hope you never do 👍

[@pofuzo23]

Nice, how much this work with parts?

[@laserfalcon]

Is there a specific tool to lock the flywheel so as to remove the crank bolt? M20 engine

[@Intelcroa]

As far as i know there is a tool. Parts number is bmw 112150. @laserfalcon

[@laserfalcon]

@@Intelcroa Found it 👍

[@Intelcroa]

@@laserfalcon ok good👍

[@magradrift6271]

Do you need alignment tools for the belt or is there marks on the engine?

[@superbimmerbros]

Hey there! Thank you for the comment! if you are referring to the timing belt and the overall timing of the engine, there is a mark on the cam shaft pulley that lines up with a mark on the cylinder head (this allows the cam and valve train to be in the power stroke cycle position). When the belt is being mounted to the crank and around the oil pump shaft, the crank pulley has a mark that says 0lT that lines up with the line on the timing cover. Both of theese lines must be in the correct position when mounting the belt. The tensioner must be adjusted as well, that is absolutely crucial!

[@TheKneeGrowNetwork]

Shoulda did a manual transmission swap too. 😩

[@superbimmerbros]

Trust us, we definitely let him know but he said he wanted to wait 😫 it's definitely in the cards though! Thanks for the comment 🙏

[@winteralexandriamiller]

How long did it take you guys to complete this? Where are you located?

[@superbimmerbros]

Hey winter! Thank you for the comment/question. It took us a total of about 3 days to complete this build with probably a few extra hours in between for removal and installation. We are located in Vista CA. Our full address is on Instagram or website superbimmerbros.com 🙏😊

[@TheKneeGrowNetwork]

Shoulda did a manual transmission swap too. 😩

[@ZombieTapdance]

@@superbimmerbros damn, too bad I don't live in Vista anymore. Columbus Ohio is a bit far for help with a rebuild on an M20b27 lol

[@dominantking3610]

What happens when you lube the back of the bearings?

[@superbimmerbros]

Hey there! To be 100 percent honest with you, we've been doing it that way from the very beginning just to not leave anything dry in the crank case. I'm sure there are some people that don't lube the backside of them too! There are probably other community members here that know much more than we do that can chime in 👍

[@wed3k]

@@superbimmerbros install them dry. You don't want to be compressing a liquid behind the bearing, thats the whole point of setting clearances.

[@r.jwilliams3173]

can i use 60-2 crank pully to use on my manual swop e28 525e with getrag 260 gearbox?

[@superbimmerbros]

Hey RJ thanks for the comment! So it all comes down to what version motronic you are running. If your car is using some variation of motronic 1.0 your 2 crank triggers will be in the in the transmission bell housing so you'll be fine using that 60-2 crank pulley. However if you're using a later motronic management system such as 1.3, you will need to make sure that the crank pulley is correct for the Car as it uses a front mounted crank position sensor that reads those pulley teeth. Hope this helps! 👍

[@Hoodean]

What’s a job like this cost? Getting into another e30 soon

[@superbimmerbros]

Hey bro! This service currently starts at 7k. We send the block out to get bored next size up with new pistons and rings. Cranks are all inspected and turned for next size up if necessary.cylinder head gets completely rebuilt, valves ground and seats cut. New cam in the head with fresh seals, rockers etc. Block gets new gaskets, seals etc. Send an inquiry via Instagram or shoot us an email [e-mail] 👍

[@ecaam]

damn i want for mine! you guys only 60 miles from me!

[@superbimmerbros]

Hey Eric! We would be very happy to help! Use the link below to get in touch 🙏 superbimmerbros.com/pages/contact

[@wed3k]

Wait, you copper coated the block?1?1?1

[@superbimmerbros]

Hey there! Thanks for the comment. We copper coat the block surface on every one of our builds. It fills any imperfections that might cause trouble down the road 👍 has always worked for us

[@jjgoinsanejarvis9]

Hi guys I’m in Atlanta ga I’m looking to do a manual swap on my E32 1992 735i can you guide me in the right direction on what I will need for the swap. Thanks

[@superbimmerbros]

Hey there! Thanks for reaching out! So the M30 manual transmission set up is pretty straightforward however as a disclaimer we have never done the swap in an e32 before but the general process is the same. You will need a clutch pedal assembly, clutch master cylinder, soft line, clutch kit from an e28 535i single mass flywheel and a 260/5 getrag transmission. You can follow this guide www.nmia.com/~dgnrg/page_41.htm it seems to have a lot of great info! It looks like the hardest part will be getting the shaft made. We recommend taking it step by step. Get the transmission and clutch kit first an build around that 🤘 you got this man! 👍

[@jjgoinsanejarvis9]

@@superbimmerbros thank guys i enjoy watching you guys do your thing it give me hope..

[@superbimmerbros]

Don't give up man! We are sure you will make it happen! 👍

[@jjgoinsanejarvis9]

@@superbimmerbros thanks guys..

[@calebsmith5963]

Whats the gold stuff you sprayed on the gasket?

[@superbimmerbros]

Caleb! Thanks for the comment. We use the copper spray to help fill in any pitting that can be either found on the block or the cylinder head surface to help reduce the risk of any air expanding in those crevasses after the car runs at normal temp or in a hotter than usual temperature.

[@calebsmith5963]

@@superbimmerbros That is very cool, I did not know that! Whats the spray called? I'll use it when I pull my e30's engine.

[@SamCalver]

@@calebsmith5963 I hope you didn't use it

[@HATCHB20]

What do you charge for a rebuild on a 1988 e28 eta motor? Love your guys videos.

[@superbimmerbros]

Hey there! Rebuilds are quoted on a case by case basis, best way to get a quote is to send us an email through our contact form. Once we get all the details hammered out we can give you a solid number 🙂 superbimmerbros.com/pages/contact

[@superbimmerbros]

And thanks for the compliment we appreciate the support! 🙏

[@gohome9118]

What did he spray at 6:28 ?

[@kevinangeles3888]

Copper spray a gasket

[@camrt6070]

Ingenieros …. No hablo inglés así que espero me respondan … le regale a mi hija un 528e ….quiero mejorarlo pero para buscar piezas no soy muy bueno veo tantas cosas … tienen un par de sitios recomendados para buscar piezas como… AC en general , motor para sillas corredizas … no tengo el código de radio no se como sacar la antena para radio, quiere unas llantas como las de este carro o bronze pero no sabemos que talla es la rueda para un ring no lo entendemos muy bien … Gracias.

[@superbimmerbros]

Por supuesto amigo. No hay nada más halagador que ayudar a nuevos miembros de la comunidad. Serías tan amable de enviarnos un mensaje por medio del siguiente portal electrónico: superbimmerbros.com/pages/contact de ahí nos puedes proporcionar tu método de comunicación y podemos entrar en detalle acerca de tu vehículo: superbimmerbros.com/pages/contact

[@camrt6070]

@@superbimmerbros Hola alli… gracias por su tiempo y su respuesta oportuna ..espero pueda hacer las cosas sencillas para tener su valiosa colaboración … nuevamente de antemano gracias … voy a ingresar para comunicarnos.

[@АдминАдмин-р3в]

🎉❤ ВМВ самолёт е 30 .м20 25 .2.5 литр мощность двигателя 170 лошадь 🐎 сил 😊

[@chrissilva5659]

All that to bolt it to a auto …the second I saw that flex plate installed I was disappointed

[@superbimmerbros]

Hey Chris! Thanks for the comment. Our client has future plans for a manual swap so this is definitely temporary 😁🙌

[@financemb8665]

Those cylinders are out of spec. Maximum should be 84.04. This motor will experience blow-by and reduced power. Should have rebored to 84.5 and ran 20 thou pistons + rings.