Bulletproof BMW Engine

[anabolice30]

I've always heard m30 is bulletproof. It seems that the m20b27 with a five speed doesn't quit either.

[downforce22]

The m10 is solid, but since its a 4 cylinder it doesn't count. The m20 breaks when the belt does, I agree, the m30 wins hands down, just keep fresh oil in it and you'll run it 400k miles. It's basically the m10 plus another half.

[Holland]

The m10 is solid, but since its a 4 cylinder it doesn't count. The m20 breaks when the belt does, I agree, the m30 wins hands down, just keep fresh oil in it and you'll run it 400k miles. It's basically the m10 plus another half.

Why does the M10 not count? And IMO it's more stout than the M30.

[DER E30]

Who the fuck keeps shooting their engines?

You beat me to it! I was going to say something to that effect!

[E30_Pare]

Why does the M10 not count? And IMO it's more stout than the M30.

M10 counts because M12


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[serdar255]

I own one, so naturally I'm happy to hear that. But since the M54 is still less than 15 years old I think the jury is still out on it being considered bulletproof.

Many people have 250k miles plus on their M54s on e46fanatics, I love mine on my e46.

[Raxe]

You really don't hear much talk about the M70, eh? I just looked it up - 600+hp. Some of those old cars must have been monsters. Consider the new cars are hovering around that same mark but weigh even more. Ahh, the gool 'ol days. haha.

The only 600hp+ "M70" was actually the S70/2 from the McLaren F1. The M70 itself was a bit of a pig.

Would it fit in an E30?

[SkiFree]

I vote M10 as well. Especially since the M30 and arguably the best formula 1 engine of all time was based on it.

[deutschman]

I say m10. Those things go for ever

[the imitator]

m30

[BMWManiac]

S52/M50 is maintenance free....no timing belt, no valve adjustments.

Weld the pump nut just once, replace the VANOS every 120k miles and you're good to go!

[digger]

M10 has 1/3 less shit to go wrong than the M30 therefore wins.

i would love to build an allmotor race M10 something around 300hp and 9000rpm

[Mr_Tripp]

I'm curious to know why no "S" engines have been mentioned, I love my s38 (269,000 miles strong) and I hear great things about the s54...

[Holland]

M10 has 1/3 less shit to go wrong than the M30 therefore wins.

i would love to build an allmotor race M10 something around 300hp and 9000rpm

And it would do it too. I've always wanted to see a 10k redline M10.

[TurboJake]

I'm curious to know why no "S" engines have been mentioned, I love my s38 (269,000 miles strong) and I hear great things about the s54...

They're finicky if you don't take care of them.

Every engine is bulletproof if you take good care of it. The real exceptional ones are the engines that can take the beating, keep going, and still be neglected.

M30 and M20, all the way.