333i

[Jean]

I believe e28 b34s are 3.4 L with 8.0:1 compression ratio = 185 hp?

[xwill112x]

I believe e28 b34s are 3.4 L with 8.0:1 compression ratio = 185 hp?

then whats the use of going m30? a healthy m50/slight modded m20 easily makes that.?

[CorvallisBMW]

^That's only in the Motronic 1.1, '3.3' liter version (it's actually 3430cc). They didn't make much more power than an m20 b/c they were a much older design (First used in '84, about 13 years before the m20b25 was deployed), with a first-gen engine management system. They do however make considerably more torque, 213 ft-lbs. M30B35 engines make about 210hp/225ft-lbs and run motronic 1.3 w/ a 9.0:1 CR, a much bigger power gain with considerably less complicated wiring and plumbing.

Andrew, OEM motor arms are a fully-boxed design which is the reason they could get away with holes.

Also a boot hinge holds up, what, 25lbs? And control arms (not wishbones, totally different type of suspension) are cast iron, a very different material. If you're that worried over the 8oz of weight you saved by cutting holes in them, why not move the 30lb battery to the trunk?

I hope they work out great, I'm not trying to shit talk or put you down. I'm just worried that after 1000 miles or so of engine vibration you're going to get some massive stress fractures. Thinner metal is susceptible to cracks and fractures when exposed to vibration, and then add the weight of the motor on top of that, and the fact that they were probably not stress-relieved after welding..... Just be careful, ok? Keep an eye on them.

[Jean]

then whats the use of going m30? a healthy m50/slight modded m20 easily makes that.?

Well, it's not all about peak hp... but area under the curve or torque delivery at low revs.

Personally I went with the latest revision from an e32 as it's rated at 208hp/225ft/lb stock (as a bonus it has less vacuum lines, and looks cleaner imho) :)

But I believe Andrew went with b34 as it's the closest thing to the 3.3L Alpina used? That's my understanding.

[IDM]

I thought Alpina used a special oil pan to clear the subframe without butchering it. Didn't they?

[Danny]

I thought Alpina used a special oil pan to clear the subframe without butchering it. Didn't they?

Don't know why you bumped this but no.

[Simon S]

Wow.

Props to that engine bay. Wow.

[bmedw]

very nice.

[e30trooper]

Andrew , Clean car. I guess that $30.00 roll of "bmw" electrical tape worked out right lol

[TrentW]

Well all I can say is congratulations. That's state of the art.

[zundapp]

That is a very cool E30. I am jealous.

[Farbin Kaiber]

Updates?

[Brian D]

Updates?

Well, before I store it up for the school year as I go away to college,

School year's not over yet...

[bp9129]

More pictures would be dope though....

[aabb2332]

yo andrew,

the masterpiece is finally coming together, looks as good as it did over summer. Did you end up getting to take it for a spin before you bounced out? I hope so. By the way that 318i i bought before i left made the 2,200mi journey drove without much of a hitch. gotta love em. anyway, ill be seeing you back on beryl come winter. looking forward to seeing her in person again.

and screw all the downers, this sexy bitch looks like she just rolled off the line.