M30 rebuild

[bahnstormer]

If I do decide to buy a rebuilt engine, is the M30 still the one to have to reach my goal of a reliable, reasonably-priced 400RWHP?

Keep the input coming. I appreciate it.

400hp NA on the m30 is gonna cost u
FI its cake
reliably? its kinda pricey cake

'sides u can't put 400rwhp down
u'd need suspension tires etc

[bahnstormer]

6 Cylinder Engines - M30
3700 HiFlo ST Sport Engine $6295 $800
3700 HiFlo ST Rally Engine $7495 $800
3700 HiFlo ST Rally Engine $8995-9495 $800
3900 HiFlo ST Sport Engine $8695 $800
http://www.metricmechanic.com/prengine.html

[Scott H]

you couldn't just edit/update your first post?

6 Cylinder Engines - M30
3700 HiFlo ST Sport Engine $6295 $800
3700 HiFlo ST Rally Engine $7495 $800
3700 HiFlo ST Rally Engine $8995-9495 $800
3900 HiFlo ST Sport Engine $8695 $800
http://www.metricmechanic.com/prengine.html

[Jay 535i]

Bahnstormer,

I am talking about forced induction.

What's Metric Mechanic, exactly? How much power are those engines making? The prices are kinda steep, unless they negate the need for a turbo kit.

As you see it, what pricey work/parts does the reliable car have that the not-so-reliable car doesn't have? I'm just curious. The whole project is pointless if I turn my reliable everyday car into a garage queen.

My suspension and tires are already upgraded.

[632 Regal]

post whoring i guess

you couldn't just edit/update your first post?

[dacoyote]

post whoring i guess

Pot... Kettle.. Black....

[BigKriss]

I'm assuming that stock internals will take 12psi and pump fuel. How long it lasts is another matter. For anything over 12psi I would go with custom internals, not cheap what so ever. If you want a reliable high horsepower engine you will have to spend big $$$. I've been looking into it a bit. Take Beeto's car for example. Try to emulate this car. Personally for a high horsepower application I wouldn't skimp on anything unless I had a second engine ready to drop into the car. It may sound overkill, but here's a list I've put together so far (they don't all have prices);

- turbo
- fuel injectors
- custom pistions -http://www.racetep.com/jeimport.html#bmw – US$1490 for 6
- custom valves - www.ferrea.com
- valve springs http://vacmotorsports.com/cgi-bin/vi...ine+Components – US$340 for 6
- Reinforced Rocker Arms http://vacmotorsports.com/cgi-bin/vi...ine+Components – US$600 for 6
- Custom connecting rods - http://www.pauter.com/bmwrods.htm US$1620
- new or reground cam
- intercooler
- wastegate if not on the turbo
- new headgasket
- custom piping
- new exhaust and exhaust manifold
- gauges
- cylinder head studs
- engine management

Then there's labour on top of that and probably a heap of things I haven't mentioned. 400rwhp is a ton of power.

[AllGo'n'Show]

wooo I was just going to start a new thread about this.
Thanks Kriss for the links to some of the stuff I don't have linked yet.

I'm getting a local guy to fab up a kit for my car, goign to be running 5-8psi stock I think for now, hopefully make it last a season and have some fun. Next winter rebuild the engine and have even more fun next spring.

How long would an Auto tranny last on FI? Any chance in hell of finding a 6spd that would bolt up to the M30? or 5 spd?

[Kalevera]

If you're going to do a fresh rebuild, there are three options in my book: factory (the best), Leo Goff/the crew at Memphis Motorwerks (equally as good) or Jim Rowe/Metric Mechanic.

Without naming names, some of the alternatives mentioned earlier in this thread are known to not use OEM parts/sell junk/don't honor warranties.

It's not cheap, but it's probably also not necessary.

Frankly, I wouldn't waste the money on an engine rebuild. M30s are cheap. If you want to turbo it, do so and then replace the engine when it starts to knock or slap. My bet is that the blower will lunch its bearings before the engine does anything significant.

best, whit

[Robin-535im]

My two cents on reliable power...

Alpina's b10 bi-turbo made about 350 HP right? If they could have made more and kept it reliable, they certainly would have.

They surely had guys with Ph.D's in mechanical engineering, fluid dynamics, physics, etc., who worked a whole lot of hours to maxize power without severely reducing reliability. Plus, they had Getrag build them a special tranny and I think used a different rear end... our M30 trannys are built to last 200k miles with 200hp, certainly fewer with 400.

I bet you can stick something on there to get to 400... but if Alpina couldn't beat 350 and even then had to get a custom transmission, my sense is that a 400 HP M30 won't be "reliable" or "long term" unless you spend a whole lotta cash... more than it's worth.

For 15k you could get a pretty nice e34 ///M5, that already had the suspension, tranny and brakes built to handle the power. 350 hp with an EAT chip isn't too far out there.

Don't let me discourage your quest for power though - I just think a reliable 400hp is hard to make from an M30. Was that 2 cents? Maybe 3?