m30 weight gain

[StereoInstaller1]

Back to the OPs question:

Yes, it is heavier.
Yes you can feel it.

Yes, it is abso-fucking-lutely worth it.

Drive one, you will say the same. That torquey bitch is what the E30 should have come with.

[416stroker]

OK so unlike the US spec motors everythings heaver in the euros.

[Jonsku]

No shit b32euros have dual vanos and b30s have single but why the weight gain over the m50?but the internals cant weigh that much more I dont see how itbs add 30lbs

You can check the part weights from www.bmwfans.info

For example S50 crankshaft weights 5kg more than M50 crank..

[416stroker]

All M50 engines have iron block. M52 has aluminium block..




S50 is totally different engine than S52, which is basically stroked M50..

No shit b32euros have dual vanos and b30s have single but why the weight gain over the m50?but the internals cant weigh that much more I dont see how itbs add 30lbs

[Jonsku]

US M50 had an iron block due to sulphur problems and is much heavier than euro.

All M50 engines have iron block. M52 has aluminium block..

Damn the ITB set up adds some wieght to the s50. What else is different?

S50 is totally different engine than S52, which is basically stroked M50..

[416stroker]

M10 = 82kg = 184 lbs
M42 = 100kg = 220 lbs
S14 = 106kg = 233 lbs
M20 = 117kg = 257 lbs
M30 = 143kg = 315 lbs
M50 = 140kg = 308 lbs
S50 = 152kg = 334 lbs

(Taken from here: http://www.unixnerd.demon.co.uk/enumber.html)

Damn the ITB set up adds some wieght to the s50. What else is different?

[Jean]

good times!

[Pinepig]

You need to add 3 ounces for the throw out bearing that was still sitting on the trunk.

[RickSloan]

this is great information, this thread should be sticked at the top of the m30 swap section to finally put to rest the rumors

[e30s52]

Because that's the only way they like to vent out ( after oops spending a fortune on M50, M52, S50, S52 ) ;)

Lol I bet I have spent less then most of you guys.

[drift]

I find it interesting (read: annoying) that the S50 motor is heaver, but no one ever says anything about it.

But you put a m30 in and people assume you can pick up the rear of the car with one hand it's so out of balance.

Because that's the only way they like to vent out ( after oops spending a fortune on M50, M52, S50, S52 ) ;)

[BimmerScreamer]

I find it interesting (read: annoying) that the S50 motor is heaver, but no one ever says anything about it.

But you put a m30 in and people assume you can pick up the rear of the car with one hand it's so out of balance.

awesome, I definitely agree. Maybe its all the plastic on a m5x motor that makes it look lighter.

I can tell you I was pleasantly surprised when I lifted up my m90 head a few days ago, much lighter than I expected and no where near a twin cam head.

[Brian D]

I find it interesting (read: annoying) that the S50 motor is heaver, but no one ever says anything about it.

But you put a m30 in and people assume you can pick up the rear of the car with one hand it's so out of balance.

A twincam swap isn't even on the radar for me, so that's irrelevant. I just hate adding weight to a car, that's all. I know that the a/c could be removed to make up the difference, but that's not realistic in Arizona.

I'm sure I'm just overthinking it, but that's all I can afford to do right now. :(

[e30s52]

M10 = 82kg = 184 lbs
M42 = 100kg = 220 lbs
S14 = 106kg = 233 lbs
M20 = 117kg = 257 lbs
M30 = 143kg = 315 lbs
M50 = 140kg = 308 lbs
S50 = 152kg = 334 lbs

(Taken from here: http://www.unixnerd.demon.co.uk/enumber.html)

Engine weights are for a dry engine with no manifolds, starter motor, alternator, etc. They will vary by 2 or 3 kg for different types of fuel injection and model year. US M50 had an iron block due to sulphur problems and is much heavier than euro. Anti-pollution kit will add a few kgs to earlier US spec engines. Where you see (short) this means the weight is for a short engine with no heads or ancillaries.

[george graves]

I find it interesting (read: annoying) that the S50 motor is heaver, but no one ever says anything about it.

But you put a m30 in and people assume you can pick up the rear of the car with one hand it's so out of balance.