Spec comparison m50<-->m50tu - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 08-08-2004, 09:04 AM
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Does any one know a site which has a correct comparison between the m50 an m50tu engines? I cant find a site with the correct information. I'd like to know the difrence in horsepower and torque between these engines. Maybe a dyno graph?
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#2 (permalink) Old 08-08-2004, 11:06 AM
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M50B20 110KW/6000rpm, 190Nm/4700rpm
M50B20TU 110Kw/5900rpm, 190Nm/4200rpm
M50B25 141KW(188hp)/5900rpm, 245Nm(181lb.ft)/4700rpm
M50B25TU 141KW(188hp)/5900rpm, 245Nm(181lb.ft)/4200rpm (E36)
M50B25TU 141KW(189hp)/5900rpm, 250Nm(184lb.ft)/4200rpm (E34)

M50TU also is a VANOS engine, whereas M50 is not

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#3 (permalink) Old 08-08-2004, 11:31 AM
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Quote:
Originally posted by 325isBaby@Aug 8 2004, 06:46 PM
M50B20 110KW/6000rpm, 190Nm/4700rpm
M50B20TU 110Kw/5900rpm, 190Nm/4200rpm
M50B25 141KW(188hp)/5900rpm, 245Nm(181lb.ft)/4700rpm
M50B25TU 141KW(188hp)/5900rpm, 245Nm(181lb.ft)/4200rpm (E36)
M50B25TU 141KW(189hp)/5900rpm, 250Nm(184lb.ft)/4200rpm (E34)

M50TU also is a VANOS engine, whereas M50 is not
So that meens the M50B25 and M50B25TU are equal regarding HP and torque. They only have a difrent curve when you benchmark the engine on a dyno (technical difrences aside)?
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#4 (permalink) Old 08-08-2004, 11:56 AM
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Correct sir. The 92's (non vanos) have a higher peak torque (like 4500) than the vanos models (like 3200 or 3500) The differences show up when you start modifying them. The non vanos models have a little bit better up top performance. Still the same peak numbers but a different curve. The vanos editions get like 20 more ft lbs of torque with a chip.

The 92 has higher lift and duration cams to make up for the non adjustable camshaft. It also has a double vavle spring head and larger intake and exaust valves. The 92 block was used in the creation of the 95 M3 by boring it out to 3L and changing the camshafts. There was a different head used with smaller vavles and vanos.

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#5 (permalink) Old 08-08-2004, 12:10 PM
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Wow....

Threads like this make me realize how much more I have to learn about bmws....
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#6 (permalink) Old 05-18-2008, 06:29 PM
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and what about differenses inside... only pistons and rods ?
i mean if i get a non vanos engine, and stick in the vanos pistons and rods, will i gain anything ? maybe that 5 Nm ?

i do have a M50B25 rotting at my work warehouse atm
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#7 (permalink) Old 05-20-2008, 01:40 AM
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