FYI - some N52 oil pan research

[nando]

I know I've seen some 530xi 6-speed tourings though, but I wasn't sure if they were the M54 or N52.

[VinniE30]

what's the weight comparison between the N54 and S54? they're both cast iron, correct?

The N54 actually has an aluminum block.

N52 is 355 lbs
N54 is 430 lbs
S54 is 478 lbs

http://www.r3vlimited.com/board/showthread.php?t=233682

Those are official weights reported by BMW.

[Fusion]

This is a great compromise for those of us not wanting to go Sxx because of sales prices and repairs/parts (euro S in my case), and especially their high milage now.
Just had a look and the N52 can be had for less than S50 money, with only 40K kms for example.

I hope they're not drive by wire and that wiring won't be too complicated.

[nando]

pretty sure any BMW from the E46 on is DBW

[Fusion]

DBW was being sorted out by someone here wasn't it? Might not be much of a problem.
Here are some more pics, seems like arm bolting patters are different than M5x.





E34 pan







Seems it had diesel lifters, if this crossheet is correct

BMW 3 (E46) 318 d 09.01-03.03 85 (116) 1951
BMW 3 (E90) 325xi 01.05- 160 (218) 2497
BMW 3 Compact (E46) 320 td 09.01-02.05 110 (150) 1995
BMW 3 Touring (E46) 330 xd 06.00-02.05 135 (184) 2926
BMW 3 Touring (E46) 330 d 10.99-02.05 135 (184) 2926
BMW 3 coupe (E92) 330xi 09.06- 200 (272) 2996
BMW 5 (E60) 525xi 07.05- 160 (218) 2497
BMW 5 (E60) 523i 01.07- 140 (190) 2497
BMW 5 (E60) 523i 07.05- 130 (177) 2497
BMW 5 Touring (E61) 525xi 07.05- 160 (218) 2497
BMW 5 Touring (E61) 530i 01.07- 200 (272) 2996
BMW 6 (E63) 630i 09.04- 190 (258) 2996
FORD FOCUS C-MAX 1.6 TDCi 02.05-03.07 66 (90) 1560
FORD FOCUS II (DA_) 1.6 TDCi 11.04- 80 (109) 1560
KIA RIO II limuzína (JB) 1.5 CRDi 03.05- 81 (110) 1493
MERCEDES-BENZ A-CLASS (W168) A 160 CDI (168.007) 07.98-02.01 44 (60) 1689
MERCEDES-BENZ A-CLASS (W168) A 170 CDI (168.008) 07.98-02.01 66 (90) 1689
MERCEDES-BENZ CLK (C209) 320 CDI (209.320) 01.05- 165 (224) 2987
MERCEDES-BENZ CLK (C209) 280 (209.354) 01.05- 170 (231) 2996
MERCEDES-BENZ CLK Cab (A209) 280 (209.454) 01.05- 170 (231) 2996
MERCEDES-BENZ CLK Cab (A209) 350 (209.456) 01.05- 200 (272) 3498
OPEL CORSA D 1.3 CDTI 07.06- 55 (75) 1248
RENAULT LAGUNA II (BG0/1_) 2.0 dCi 08.05- 110 (150) 1995
RENAULT LAGUNA II Grandtour (KG0/1_) 2.0 dCi 08.05- 110 (150) 1995
ROVER 75 (RJ) 2.0 CDT 02.99- 85 (115) 1950
SMART FORTWO Cabrio 0.8 CDi (451.400) 01.07- 33 (45) 799
VOLVO C30 2.0 D 10.06- 100 (136) 1998
VOLVO S60 2.4 D5 07.01- 120 (163) 2401
VOLVO V70 II Tour (P80_) 2.4 D5 08.01- 120 (163) 2401
VOLVO XC 90 D5 10.02- 120 (163) 2401

Manual trans bushings are from E36/42/39
Oil filter is N52 specific
Temp sender seems to be from M54
Coils are N42 318 and euro S54 3.2
Starter is N52 specific

M50 e34 pan gasket http://media.oscaro.com/jpg/zoom/88/702769810.JPG
N52b30 330i pan gasket http://media.oscaro.com/oscjpg/zoom/139/14092100.JPG

[flyboyx]

somewhat on-topic, but did E60s come with the N52? I really want an E60 wagon, AWD, with a 3 liter N52, for the family..

yes chris, e60's did come with the n52

[Massimo]

Pondering here. Why can't the valvetronic be actuated my accelorator cable? In the same way it dose with a throttle body. The geared lever is the same shape. Would have to fab up one with a valley for a cable.

The things to consider is sealing the wire when it enters the cam cover? How to position a return spring? Mounting a TPS? Mind you this all depends on how easy it is to turn this thing.

That way as far as an after market ECU is concernd it is buisness as usual?

Well that is how I would do my swap anyway.

[Leo_328i]

Aren't N52 high pressure injected? Thus injected directly?
Iirc, some problems with FI on the first engines?
Sorry for my ignorance, but this is new to me and I'm interested in this swap.

Do you mean Direct Injection?

The later N53 motors from Europe have direct injection but the N52s are still port injection - judging by the photos it looks like the injector ports are actually machined into the head rather than the in the inlet manifold like older engines.

[nando]

Pondering here. Why can't the valvetronic be actuated my accelorator cable? In the same way it dose with a throttle body. The geared lever is the same shape. Would have to fab up one with a valley for a cable.

The things to consider is sealing the wire when it enters the cam cover? How to position a return spring? Mounting a TPS? Mind you this all depends on how easy it is to turn this thing.

That way as far as an after market ECU is concernd it is buisness as usual?

Well that is how I would do my swap anyway.

because it's based on load/rpm/temperature, not just throttle position (that probably has some play too).

AFAIK, the N52 has no throttle. it actually opens the valves less instead, for idle, cruise, etc.

[nando]

yes chris, e60's did come with the n52

sweet

now to wait for them to drop in price a bit more. :)

[328ijunkie]

N52 has a TB but once you start it unless theres a fault it just opens WOT all the time.

[Fusion]

Do you mean Direct Injection?

The later N53 motors from Europe have direct injection but the N52s are still port injection - judging by the photos it looks like the injector ports are actually machined into the head rather than the in the inlet manifold like older engines.

You're right, my bad. Here's an explination.

The new N53 comes in two displacements – 2.5 litres and 3.0 litres. One major difference with the N52 is that it comes with High Pressure Injection, which is basically direct injection. But the N53 does not have Valvetronic because there is not enough space in the cylinder head to implement both direct injection and Valvetronic. BMW has since solved this problem of course – in the N55 TwinPower Turbo they managed to put both Valvetronic and direct injection in that engine.

Our recently launched F10 5-Series 523i comes with the N52 engine instead of the N53 engine. Power is 204 horses and 250Nm of torque, which is equivalent to the tune found in the Z4 sDrive23i. This is up from what the E60 523i had, but lower than what the 2.5 litre engine is actually capable of, so a little remapping trick in the future should be able to unleash those horses. The engine is older but I wouldn’t say it’s outdated as it is still in use in a few countries, not just our “ASEAN” country. USA and Australia still continues to use the N52 for the same reason that we use the N52 – high sulphur content in our gasoline. Yes, the sulphur issue is not just with our diesel.

According to BMW, they are able to introduce the N54 and N55 with direct injection here because the forced induction changes the combustion flame in a way that allows the injectors to be okay with the sulphur content here, but that’s as technical an explanation as I could get so far. It’s also because of the inability to offer direct injection here that we are stuck with the weak 156hp N46B20 engine in the 320i, when other markets have moved on to N43B20 with 170 horsepower and 210Nm of torque thanks to its direct injection system.

[Massimo]

because it's based on load/rpm/temperature, not just throttle position (that probably has some play too).

AFAIK, the N52 has no throttle. it actually opens the valves less instead, for idle, cruise, etc.

I don't think you quiet understand what I mean.



The red line would be your accelerator cable and the red dot being a TPS. This way you can still use the valvetronic on a something like MS. All the while MS still thinks you are using a throttal body with a TPS.

I though the big issue with the new motors not working on aftermarket ECU is because of teh Valvetronic?

[nando]

no, I do. you're saying control the valve opening with a throttle cable. the problem is on the factory engine, throttle position is only one element. engine load, RPM, and temperature are what really control how far it opens the valves.

it would "work" but driveablitly would be pretty poopy. 50% throttle isn't neccesarily 50% load, and you don't want to operate them the same way when the engine is cold as when it's hot. you'd be better off just locking the cams.

if it's a PWM controlled solenoid of some sort, MS3 could probably control it. the problem is they won't add support for the E-throttle.

really though, why not just use the stock ECU?

[Massimo]

no, I do. you're saying control the valve opening with a throttle cable. the problem is on the factory engine, throttle position is only one element. engine load, RPM, and temperature are what really control how far it opens the valves.

it would "work" but driveablitly would be pretty poopy. 50% throttle isn't neccesarily 50% load, and you don't want to operate them the same way when the engine is cold as when it's hot. you'd be better off just locking the cams.

if it's a PWM controlled solenoid of some sort, MS3 could probably control it. the problem is they won't add support for the E-throttle.

really though, why not just use the stock ECU?

Oh ok I understand now valve lift to power out put is not linear. Makes more sense now. Yeh locking the cam and running itbs seem easier. I don't like the stock ECU because of its limited tuning. But is a work of art non the less.

Reading a bit more I think an N20 would be a better swap. Maybe ill try and see if I can pick on up cheap at the end of the year. :twisted: