M54. Let the foolishness begin.

[Danny]

I am wondering how I can get this to smog in Cali. I would so love to run a M54 instead of traditional swaps.

Easy way? Try to pass it off as an M50.

Hard way? Bend over.

[SoEm0]

Hmm I am going to have to find out a little more about the bar process. Try and find a way to make this work.

[Wanganstyle]

Hmm I am going to have to find out a little more about the bar process. Try and find a way to make this work.

CAli BAR + M54b30 in an e30?

sure, can be done.

give me complete M54b30 car, and about 2 months...... it would NOT be cheap.

CAli bar requirements requires the replacement engine to be used with its factory DME and full emissions control ; complete OBD2 with its full evap system would need to be installed.

S52 converted to OBD1 is NOT cali smog legal. Most definately not bar legal at all

if you want to "pass" smog, there are ways to "pass".

[SoEm0]

The m50 and m54 look similar.... guess its time to start searching.

[Wanganstyle]

The m50 and m54 look similar.... guess its time to start searching.

similar yes, but BAR legal - NO.



no engine can be swapped and pass bar legitimately unless its original DME and full emissions system is also installed with it.
Legitimate pass and "pass" are different things, I would prefer to be 100% by the rules if playing that game.



if goal is bar legal, stuff in entire M50. easier to tweak for top end power as well- better for boosting....etc

[e30polak]

Just run an m50 intake manifold on it, and the person doing the bar test will have no clue. Pass it off as an M50 by switching to an OBD1 valve cover. :p

[Wanganstyle]

Just run an m50 intake manifold on it, and the person doing the bar test will have no clue. Pass it off as an M50 by switching to an OBD1 valve cover. :p

I dont think its bolt on though....

word on the street is that Single vanos can be bolted on to the m54 head, and it might actually work - this would be an interesting way to get an ALU motor;l

get M54b30 +S52 valvetrain and single vanos+headers+ some hybrid intake manifold and m44 CPS and OBD1 everything.....

but you would loose dual vanos.

[e30polak]

I dont think its bolt on though....

word on the street is that Single vanos can be bolted on to the m54 head, and it might actually work - this would be an interesting way to get an ALU motor;l

get M54b30 +S52 valvetrain and single vanos+headers+ some hybrid intake manifold and m44 CPS and OBD1 everything.....

but you would loose dual vanos.

Both the m50 and m52 intake manifolds can physically bolt-on to the m54, as well as the headers for either motor.

[DRTSRFR]

Ryan G just got done with an S54 swap in his M3...very impressive...

But it'll never pass Cali Smog:hitler:

http://forum.norcale30.com/showthread.php?t=11433

[SoEm0]

Even the intake mani's between the M50 and 54 look similar. I am guessing swapping to a single vanos head wouldn't matter too much since I think Hovering isn't controlling his exhaust vanos. I wouldn't boost an M50 either since that wouldn't pass smog anyways.

[SpecM]

that's so stupid that you have to have full OBD II everything on a Cali car

even an OBD I m54 is WAY cleaner than an m20, or even m50

isn't that the goal? clean?

[SoEm0]

LOL I fully agree with you Spec. My friend and I had this discussion the other day. I was plotting on his M54b30 and the topic came up.

[Wanganstyle]

Both the m50 and m52 intake manifolds can physically bolt-on to the m54, as well as the headers for either motor.

wow;

so then I can just buy a M54b30 and bolt on S52 cams and towers and headers and intake and have cheap plentiful ALU motor. damm
cps sensor bolts on as well, is there a place for the crank position sensor to also go on m54 head? im guessing yes? or no port there for it-

[hoveringuy]

wow;

so then I can just buy a M54b30 and bolt on S52 cams and towers and headers and intake and have cheap plentiful ALU motor. damm
cps sensor bolts on as well, is there a place for the crank position sensor to also go on m54 head? im guessing yes? or no port there for it-

Here's what my actual emission looked like with OBD2 cats:

............. HC (ppm).. .....CO(%).. CO+CO2(%)........ O2(%)
limit............ 150........... 1................ 6................ n/a
cruise...........54......... .08 ............14.88............. .25

limit............. 220......... 1.2............... 6................ n/a
idle.............. 64 ........ .01 ...... .... 13.81 ........... 1.58


A suprising amount of the m50 stuff bolts to the M54. I'm using S50B32 exhaust manifolds.

Don't know about S52 cams, but I doubt they would fit as the head is not interchangeable at all.

You can put the crank sensor on the head but it won't do much good...

[SoEm0]

so a head from a S50/2 can't make its way to the block?