Do I have an M20 or an M50? [Archive] - Bimmerforums

Stir Fry A Lot

07-05-2009, 07:44 PM

M20
http://upload.wikimedia.org/wikipedia/commons/thumb/4/4c/M20B25.jpg/300px-M20B25.jpg

M50
http://us1.webpublications.com.au/static/images/articles/i29/2948_2lo.jpg

mikemxbike4

07-05-2009, 10:59 PM

They made both in 1990 take a pic of your motor

5mall5nail5

07-05-2009, 11:05 PM

What's the difference?

sachmo12345

07-05-2009, 11:12 PM

What's the difference?

Funny coming from you.

mikemxbike4

07-05-2009, 11:20 PM

What's the difference?

No difference except the power output.

M20 made 20 hp

M50 made 50 hp.

Jbaroli

07-05-2009, 11:58 PM

M20= 6 cylinder 12 V SOHC belt driven engine
M50= 6 cylinder 24 V DOHC chain driven engine

5mall5nail5

07-06-2009, 12:02 AM

No difference except the power output.

M20 made 20 hp

M50 made 50 hp.

Oh ok - wow those figures sound low. But, these engines aren't designed for super crazy horsepower.

David325e

07-06-2009, 12:02 AM

No difference except the power output.

M20 made 20 hp

M50 made 50 hp.

M20= 6 cylinder 12 V SOHC belt driven engine
M50= 6 cylinder 24 V DOHC chain driven engine
http://images.starcraftmazter.net/4chan/for_forums/successful_troll.jpg

Ridgie

07-06-2009, 12:24 AM

damnit i just took a look and it looks like i have an M20

bodega

07-06-2009, 12:26 AM

i have a 94 540i..what do i have?
unsure.gif

5mall5nail5

07-06-2009, 12:27 AM

i have a 94 540i..what do i have?
unsure.gif

M20 probably

bodega

07-06-2009, 12:29 AM

mine doesnt look like either of those..

5mall5nail5

07-06-2009, 12:30 AM

mine doesnt look like either of those..

Hrm. Maybe an M30 then

mikemxbike4

07-06-2009, 12:31 AM

mine doesnt look like either of those..

Its probably an m30 then:buttrock

Hrm. Maybe an M30 then

Holy moly you beat me to it!

bodega

07-06-2009, 12:34 AM

haha..still not sure, tried googling.
its 8 cylinders though, and what does m20, m30 or m50 even mean?

mikemxbike4

07-06-2009, 12:34 AM

Its hard to say since 1994 US 540i came with m20 stock and m30 as an option.

haha..still not sure, tried googling.
its 8 cylinders though, and what does m20, m30 or m50 even mean?

Its probably m30 sport edition then. They added 2 cylinders for extra perfomance. Very rare version.

5mall5nail5

07-06-2009, 12:36 AM

Also the M42 I think. I dunno though.

p1zz4guy

07-06-2009, 12:37 AM

haha..still not sure, tried googling.
its 8 cylinders though, and what does m20, m30 or m50 even mean?

:shifty:shifty:shifty:shifty

bodega

07-06-2009, 12:38 AM

Its hard to say since 1994 US 540i came with m20 stock and m30 as an option.

Its probably m30 sport edition then. They added 2 cylinders for extra perfomance. Very rare version.
so my car could be special? thats awesome haha
but back to my question, what does the m20, m50 etc, mean?

bellicose

07-06-2009, 12:43 AM

so my car could be special? thats awesome haha
but back to my question, what does the m20, m50 etc, mean?

Mate i don't think it's your car that's special...........look in the mirror :stickoutt

ILoveMPower

07-06-2009, 12:45 AM

These guys are just messing with you! You have a 540 which is an M60B40, as opposed to the M60B30 in the 530's. The M60 designation is just an engine code, whilst the B40 refers to the 4.0 liters of displacement. Hope this helps

bigsixe34

07-06-2009, 12:47 AM

haha you guys are mean :stickoutt
to the OP: take a look at Stir Fry A Lot's post. since your car is a 1990, it's most likely an m20, the first motor pictured.
and to bodega: dude, i just google'd all of the BMW motors available in the e34, and each and every time the first choice was the wikipedia article with a full explanation of the specifics of the motor, along with it's applications by BMW. FYI, you have an M60B40. Just type in BMW M60 in google, your problems will be solved.

Damn :rolleyes

mikemxbike4

07-06-2009, 12:48 AM

bodega

07-06-2009, 12:51 AM

lol at this whole thread
what a learning experience

mikemxbike4

07-06-2009, 12:56 AM

lol at this whole thread
what a learning experience

Haha yup welcome to the board!

BMW has designated index for all of their motors.

US E34's came with m20 m30 s38 m50 and m60 index motors.

93FIM5

07-06-2009, 01:17 AM

Its hard to say since 1994 US 540i came with m20 stock and m30 as an option.

Its probably m30 sport edition then. They added 2 cylinders for extra perfomance. Very rare version.

So since mine is a M 5 does that mean I got the m20, m30 or the more rare M42?

ILoveMPower

07-06-2009, 01:18 AM

So since mine is a M 5 does that mean I got the m20, m30 or the more rare M42?

I think they came with the almighty M10, since they wanted to make the car twice as fast as advertised.

Stir Fry A Lot

07-06-2009, 01:36 AM

I'ma go make some popcorn. Mods, please don't lock this thread yet..

Christoffer

07-06-2009, 01:48 AM

This thread went from someone asking a genuine question, to....this, far too easliy.

bellicose

07-06-2009, 01:55 AM

This thread went from someone asking a genuine question, to....this, far too easliy.

Yeah but some people make it far too easy :D

Stir Fry A Lot

07-06-2009, 02:15 AM

yeah but some people make it far too easy :d

qft

BMWheadSpence

07-06-2009, 09:15 AM

Can we get some pics of this m30 sport version?
And what does e34 mean?
What does m30 sport version mean?
This thread really shows bfc love:D

janders211

07-06-2009, 05:09 PM

Now I 'm really confused. I know I have a 6L M60-but is it the I8 or v6- I also have an m30-and just need to figure out how to combine them to make an m90
http://world.guns.ru/sniper/barrett_m90.jpg
http://?world.guns.ru/sniper/barrett_m90.jpg

russiankid

07-06-2009, 05:13 PM

M5's came with a K20 from a Honda. You guys are such noobs.

93FIM5

07-06-2009, 05:13 PM

Now I 'm really confused. I know I have a 6L M60-but is it the I8 or v6? I also have an m30-and just need to figure out how to combine them to make an m90
http://?world.guns.ru/sniper/barrett_m90.jpg

Its a V6 only the Alpina Bi-turbo got the I8. The M30 should be the 3L V6 so if you just bolt the cranks together (remove the harmonic dampner and bolt straight to the flywheel) you should be able to make a pretty reliable 9L V12. Good luck man!

Binjammin

07-06-2009, 05:37 PM

I should put this thread back on topic, that would truly make it into Opposites Thread.

But I won't, let's all kick the newb for owning a b40.. :rolleyes

Newbie, Bodega... whatever your name is... if you need any advice just ask, sorry I got here too late to help.

bellicose

07-06-2009, 07:01 PM

Atreus99

07-06-2009, 08:37 PM

wait, but my friend said my car has a ls7 motor in it with a 8spd tranny....

i need to call BMWNA and see whatsup. rofl.

Stir Fry A Lot

07-06-2009, 10:09 PM

Don't pay attention to these yahoos. You have a B30, also known as God's Chariot.

nismoracer65789

07-06-2009, 10:56 PM

Can we get some pics of this m30 sport version?
And what does e34 mean?
What does m30 sport version mean?

:rofl

Aindriu

07-06-2009, 11:08 PM

On a serious note. I'm no engine expert but I belive that one main difference between the M20 and the M50 is that the latter had hydrolic lifters?

mikemxbike4

07-06-2009, 11:25 PM

On a serious note. I'm no engine expert but I belive that one main difference between the M20 and the M50 is that the latter had hydrolic lifters?

No damnit! M50 is the one with electronic solenoids that open the valves. Duh

So since mine is a M 5 does that mean I got the m20, m30 or the more rare M42?

M5 came with M10 twin supercharged. Unless you have Autobahn edition which has M42 with a Patented Honda Vtec system.