m30 vs 24v swap

[totheredline]

What about performance parts?

I would think m5x motors would be cheaper.

[TimKninja]

Not a big fan of the gas guzzling M30. But then again all i can muster with my S50 is 22 Mostly highway :/ I actually never knew the M30 was as heavy as a 24Valve . Dont the M30s sit alittle more far forward?

Id have to take a ride in an M30 swapped car before i could solidify my opinion. It does look period correct in there. But try to find one in a Junkyard, not that easy. Whilst E34's and E36s are everywhere.

[Kevinl]

I was at the junk yard a couple weeks ago and saw a B35M30 it got me thinking. A m50 isn't worth it imo might as well turbo the M20

I really want a V8 but not sure if i want to go to all the trouble and exspense

[lukeADE335i]

You know what bothers me the most? Kids that pull junkyard engines and swap it with zero matinance. Then slap 2-3k on top and sell it to noobs. It does not matter what engine you swap. It is the level that is taken on care. I respect any swap(within reason) that has the correct approach. Why waste time putting something in that is just scrubbed down on the outside?

M20 vs m42 m30 vs m50/s50 based vs m60. These have all been beaten to death on what one is better or what one is the smarter swap for the money.

Do whatever engine you want, but do it right.

This is the main thing.

Lets face it, with all of the engines coming down in price in recent years, M30 / M50 / M60 are all viable swaps now with the engines all in the same ballpark as far as cost goes (although my M30 cost me $100 for a well maintained engine which had a reconditioned head so there are bargains to be had :) - I still did a gaskets & water pump refresh).

Do it right and do it once.

[TobyB]

Weight.

Pick up an M30 crank, then pick up an M52 crank.

Likewise rods.

Then valves.

The M30 is a heavy engine in comparo to an M5x.

It's also almost 30 years older.

But it's not terrible, it's just not 'modern' for a BMW engine.

t

[totheredline]

I would do an S50/S52 or M30 swap, but then I'd always regret not saving up to do an S54 or V8 swap. Lets be honest, everything else is pretty lame compared to the S54. Its actually a fact that jesus made the s54. you cant compete with jesus, and perfection. God bless the S54.

[F34R]

I would take a boosted m30 over an s54 all day. You cannot kill an m30/

I got my m30 & 260/6 fully dressed for under 400.00. I took it home and tore it down. Replaced every seal and surfaced the head and block by hand(yes you can do it properly that way). I have under 1k total in my swap and it is fresh and perfect order.

There are deals to be had if you search.

Not sure if anyone that is not my friend can view this. But here is my refreshed m30b35 with custom short headers to a 2 into 1 Y and a 3" stainless steel system(deleted cats) and a magnaflow 3" in and 4" out. Steve(Blunt) has heard my car @vintage in Saratoga. Everyone heard me gurgling in. Highway cruising is a breeze with almost no cabin noise. If you kick down it is like a angry horde of goblins tearing your flesh off.

https://www.facebook.com/photo.php?v=10201480411186306&l=938520665971257543

https://www.facebook.com/photo.php?v=10201480388425737&l=4803813201819994945

[digger]

M30 has heaps of potential when done right id never consider a M50/52 over a good M30

[csermonet47]

Salutations waffleswaffleswaffleswaffleswaffleswaffless.

I got a hair over 27mpg highway in my M30 car. On average I got 22-23 combined.

A stock M30B35 makes more power than a stock M50/2 and with a MAF and tune it is almost in stock S50/2 territory.Here is a dyno of a stock B35 with Miller MAF and tune coming in at 194whp and 214 ft/lbs.

An M30 weighs within 20lbs of an M50/2 and weighs less than an S50/2 (source here or here)

The only "fabrication" involved is buying prefabricated motor mounts, cutting stock radiator mounts (30 seconds with a grinder), pushing the firewall back (if you choose the rear position on the Otis mounts), and a modified drive shaft (shortened E28 front on an E30 back is easiest). Wiring is very simple for late model cars.

A 24v motor will be cheaper to get power out of. It will also be smoother and more efficient if it is in good shape. It is a more modern motor, so it only makes sense. M30s just have a set of balls to them I feel that most 24v motors do not.

The M30 is an old motor (been around since the 60s), but that does not mean it is a bad motor. They are cheap, simple, last forever, and are easy to work on. The junkyards are full of them too.

They also look right at home in an E30 engine bay 8)



A lot of people on here just don't know what they are talking about when it comes to M30 swaps, so here is some info from someone who has done one. Trust me, I have my grade 10.

[LowR3V'in]

I feel bad for people who use m50 that btw is barely faster then an m20.
reading about how much better, lighter, TWIN CAM, make ur dick bigger on these forums.

Weight. The M30 is a tank for the horsepower it doesn't make. The M5x makes
more power and weighs less, and comes with a better injection system.

But it's still a great motor, for all that.
t

U ignorant buffoon.
.
.
.

[lukeADE335i]

A 24v motor will be cheaper to get power out of. It will also be smoother and more efficient if it is in good shape. It is a more modern motor, so it only makes sense. M30s just have a set of balls to them I feel that most 24v motors do not.

They also look right at home in an E30 engine bay 8)

A lot of people on here just don't know what they are talking about when it comes to M30 swaps, so here is some info from someone who has done one. Trust me, I have my grade 10.

Your car is great Ryan. Wish my swap was THAT neat!

Having taken mine for a country run today I have to agree with the "set of balls" comment - in the e30 the M30 drives more like an old school small block V8 than they have any right to. The torque just doesn't fall off & I like my grumpy idle :)

Overtaking is effortless even in 5th gear.

[CabbE30]

I want an M30 :(

[TheTacoMan]

Maybe one day ill have an e30 for each day, m30 monday sounds like a plan.

;D

[MJCRO]

I feel bad for people who use m50 that btw is barely faster then an m20.
reading about how much better, lighter, TWIN CAM, make ur dick bigger on these forums.





U ignorant buffoon.
.
.
.

Same.

I still don't understand why people are spending all that money and effort putting in a motor that makes power comparable to an M20.

M30's are so underrated and cheap as hell.

[TobyB]

U ignorant buffoon

explains a few things.

U rocker breakin' monkey.

You know something that hasn't come up, really, in all this heavy-poo- flinging
name- calling-

displacement. You can get darn near a liter more out of an M30.

And it has 12 more rockers than a DOHC head, too, so you can hear it comin'.

t