Can I add s50 cams and vanos unit to an m50nv engine?

[amcink]

Like the title says

[Mr.SWISS]

Like the title says

Short answer, you betcha.

[amcink]

Short answer, you betcha.

Thanks, that answer my other question

http://www.r3vlimited.com/board/showthread.php?t=283626

I'll get to work now and do the swap. I also have a vanos harness anfd a 413 dme when i get the s50 parts

[RobertK]

Yes, but you will need to carefully dremel out a small section at the front of the head to clear one of the VANOS bolt heads.

Otherwise you just need a 413 ECU, M50 MAF, and M50 Vanos engine wire harness.

[amcink]

Yes, but you will need to carefully dremel out a small section at the front of the head to clear one of the VANOS bolt heads.

Otherwise you just need a 413 ECU, M50 MAF, and M50 Vanos engine wire harness.

RobertK
I know you have done many work on stroker engines and i will defenetly will need your help and guidence.
My plan is to install the M50nv now. And pass California BAR then (this gives me time to get the S50 cams and vanos unit) if i can swap the S50 parts or if need be take the head off and send it for machine swap the parts get a new head gasket (a refresh per say)
Parts i have
A) all necesary parts to do the M50nv swap (therefore an M50 maf)
B) an extra m50 vanos harness from an e36
C) an 413 ecu
Parts i need
A) s50 cams intake and exhaust
B) S50 tray
C) S50 vanos unit

Please add to the list of items need it if i missed something
Also how much power (on the low end) should i expect?
Thanks and will start the hunt now


Update:i found a vanos unit from a 96 328is will this work? I crossed reference all the parts numbers on realoem and it seems that all vanos units are the same From 325i to M3

[emmanuel.dlc]

Yes, but you will need to carefully dremel out a small section at the front of the head to clear one of the VANOS bolt heads.

Otherwise you just need a 413 ECU, M50 MAF, and M50 Vanos engine wire harness.

on my swap i didn't dremel my head in order to fit the vanos, i used 92 NV head from e34 (maybe different castings?) and 94 vanos components from e36 and it was a complete bolt on.

changed the harness, plugged the 2 knock sensors, tooth wheel, vanos filter tower, s50 cams, vanos itself and valve cover, cam sensor and maf sensor.

[emmanuel.dlc]

Update:i found a vanos unit from a 96 328is will this work? I crossed reference all the parts numbers on realoem and it seems that all vanos units are the same From 325i to M3

Use that vanos as youll get the updated vanos spring and shims (less rattle)


Sent from my SGH-T769 using Tapatalk 2

[RobertK]

RobertK
I know you have done many work on stroker engines and i will defenetly will need your help and guidence.
My plan is to install the M50nv now. And pass California BAR then (this gives me time to get the S50 cams and vanos unit) if i can swap the S50 parts or if need be take the head off and send it for machine swap the parts get a new head gasket (a refresh per say)
Parts i have
A) all necesary parts to do the M50nv swap (therefore an M50 maf)
B) an extra m50 vanos harness from an e36
C) an 413 ecu
Parts i need
A) s50 cams intake and exhaust
B) S50 tray
C) S50 vanos unit

Please add to the list of items need it if i missed something
Also how much power (on the low end) should i expect?
Thanks and will start the hunt now


Update:i found a vanos unit from a 96 328is will this work? I crossed reference all the parts numbers on realoem and it seems that all vanos units are the same From 325i to M3

The NV M50 engine runs a lower compression (10:1) versus the VANOS M50 (10.5:1) so you HP and TQ numbers might not be exactly what you are expecting and my guess would be right around stock VANOS M50 numbers with S50 cams.. maybe just a little higher but nothing ground breaking.

Also, The NV MAF and Vanos MAF are completely different so to run a vanos wire harness and tune you will need a VANOS 3" MAF.

You can use any single VANOS unit but the solenoid connector is a little shorter (or maybe longer) on OBD2 cars like a 328i.

There are cast differences in heads and I've seen some where they head was replaced with a 400 cast head so no modification was needed to clear the VANOS plunger bolt heads. The best way to find out is just to mock it up, you will know right away if you need a Dremel. On Barry's build he had an earlier double valve spring head so we had to modify it to fit the VANOS unit.

In the end the biggest difference you will feel is more useable low end torque which is great for a daily driver.

[amcink]

The NV M50 engine runs a lower compression (10:1) versus the VANOS M50 (10.5:1) so you HP and TQ numbers might not be exactly what you are expecting and my guess would be right around stock VANOS M50 numbers with S50 cams.. maybe just a little higher but nothing ground breaking. This is ok. Just looking for something smooth for a DD

Also, The NV MAF and Vanos MAF are completely different so to run a vanos wire harness and tune you will need a VANOS 3" MAF. Not a problem will get it.

You can use any single VANOS unit but the solenoid connector is a little shorter (or maybe longer) on OBD2 cars like a 328i. Just double check at realoem and this is consider an M52 (odb2) engine as you mention. I will go back and get a unit form an 95 or earlier (therefore odb1)

.

[RobertK]

Remember, with the VANOS unit you don't need a whole other unit just unscrew the OBD2 solenoid and replace with an OBD1 version.

I have piles of them if you need one for cheap.

[amcink]

Robertk
Here is the m50nv with the cover plate were the vanos goes. It seems like a straight bolt on

[RobertK]

Robertk
Here is the m50nv with the cover plate were the vanos goes. It seems like a straight bolt on

Sorry for the late reply man, The bolt pattern matches right up but there is part of the casting on the intake side that has to be notched to clear one of the bolt heads on the vanos unit.

[amcink]

Thanks for your reply Robert
I already did this and in the next two weeks the engine is going in
Here is the link to my build http://www.r3vlimited.com/board/showthread.php?t=284998