Engine Specs

[kiwi535 538]

its amazing how light(relatively ) the V 12 is!

M30

Straight 6 cylinder SOHC 12V. Big Six. 1973-1993. 143kg 315lbs

Used in E12 525/528, E28 525i, E23 725i, 2800CS, E28 528i, E23 728i, 3.0CS/i/L, 3.0Si, E12 530i, E23 730i, 3.3Li, 633, 732i, 733i, 535i, 635i, 735i, E12 M535

2.5i (150bhp), 2.8i (184bhp), 3.0 (185-208bhp), 3.3 (200-206bhp), 3.5 (218bhp)

M60

V8 DOHC 32V. 1992-1996. 146kg 321lbs

Engine blocks were made of Nikasil (Silicone Injected Nickel) which were prone to failure over time. Many have been replaced with the newer Alusil (Silicone injected Aluminum) engines/

Used in E34 530i, E32 730i, 740i, 840i

3.0 (218bhp), 4.0 (286bhp)

M62/M62TU

V8 DOHC 32V/V8 DOHC 32V Single VANOS. 1996-present. Alusil Engine block. Pre 98 engines were non-VANOS. 140kg 308lbs

Used in E38 730i/740i, E39 540i, X5 and 840i

3.5 (235bhp), 4.4L (286bhp), 4.6 (340bhp)

M70

V12 SOHC 24V. 1988-1994. 155kg 341lbs

Used in E32 750il, 850i

5.0 (300bhp)

M73

V12 SOHC 24V Single VANOS. 1995-2001. Pre 98 engines were non-VANOS. 150kg 330lbs

5.4L (326bhp)

Original S38 (Also known as M88 and M88/3)

Straight 6 DOHC 24V Solid Lifter Valvetrain and Individual Throttle Bodies. 1979-1980, 1986-1990. 146kg 321lbs

Used in M1, E28 M5, M6, SA E23 745i

3.5L (277-286bhp)

Updated S38

Straight 6 DOHC 24V Solid Lifter Valvetrain and Individual Throttle Bodies. 1988-1996. 151kg 332lbs

Used in E34 M5

3.6 (315bhp), 3.8 (340bhp)

Edited August 10, 2007 by kiwi535

[Cale 36]

Also interesting that the M20 2.5i and M10 1.8i have the lowest weight per horsepower figures:

M20 2.5i=0.68kg bhp and M10 1.8i=0.84kg bhp as opposed to,

M20 2.0i=0.97kg bhp and M10 1.6i=0.98kg bhp.

(my own calculations, hope im correct)

Must mean that more fuel economy and acceleration for the 2.5 and 1.8 (not taking into account the cars net weight).

Edited August 10, 2007 by Quail

[ACS523i 0]

Thanks for clearing that up, A friend of mine who considers himself an expert on E39's was telling me year 2000 523i's (In standard trim anyway) has no more power than his 99 520i - the only reason my 2000 ACS 523i blitzes his is because of the schnitzer mods - airbox, exhaust and chip??

By the info you have given a standard 2000 523i has the M54 and would have been 2.5 (184-192bhp standard) vs his 520i 2.2 (170bhp) - I would assume that standard torque figures are higher as well.

My BMW mechanic had already told me there was a slight difference in the engine and power between the 99 and 2000 models (dual Vanos), and also said they discontinued the 523i's in 2000 so the M54 powered 523i's are fairly hard to come by - Is this right??

[Eagle 1662]

Massive thread dig

[bellicose 9]

Massive thread dig

Give the man a medal 'cos that's more than epic.

[tire 10]

No less relevant though so what's the big deal?

[Braeden320 0]

Massive thread dig

At least he can have the sense to use the search function unlike other tards who start threads without searching.

[ACS523i 0]

So I dug up an old thread ..... is that a fineable offence ???, I did a search on the yr 2000 E39 523i's because there seems to have been an engine change before they got rid of the 523's in 2000.

.... Anyone with any information about the yr 2000 523i's and just what they were actually powered by would be great. Whether this being a schnitzer model makes any difference - A chap who was looking to buy it (when i had it for sale) did some background checking on the numbers etc, and it was a german assembled 'schnitzerized' model that was imported privatley to Singapore, (the very last batch of 523i's) - before making it's way here in 2006. My friendly dealer (good bloke) advised me that I should a) keep it, or up my asking price on the back of this - I was going to take $10k in late 2008 ........ obviously i went with option a) and happy I did so.

Can anyone confirm that the last 523i's did get the Twin Vanos M54 2500cc motor - or have I got an oddball???

[Eagle 1662]

Just not often see 3 yrs thread coming to life, wasn't crying about it if thats what were thinking.