Intake Cam swap?

[ethrty]

hey guys.

back working on my project and have aquired an OBD1 conversion with a tuned BMW ECU. ECU is from a M50b25 non-vanos and my enine is an M52b28 with single-Vanos.

He gave me an M50b25 intake cam along with the conversion and said i should swap it out.. do i HAVE to do this now or can i put it off till after the engine is all wired up and running etv?
If i can leave the M52 intake cam there for now, can i also leave the vanos system on the M52 head installed and not connected up?

i know the tune on the ECU will be designed to run on the M50 cam and i will do it eventually, but i just want the car to run and be able to be driven often to start with, and will take it to an engine reconditioners or something to swap the cam in and delete the vanos at a later date.
i dont feel confident doing it, nor do i have the correct tools, and it will also be a darn site easier driving the car there than having to tow it there

[M-technik-3]

Let me get this straight you have a m52b28 that is using a an older m50b25nv ecu? Why is this way?

I would connect the vanos and use it as it's designed to or swap heads if wanted a NV engine.

Run ETV? what is that?

[ethrty]

Let me get this straight you have a m52b28 that is using a an older m50b25nv ecu? Why is this way?

I would connect the vanos and use it as it's designed to or swap heads if wanted a NV engine.

Run ETV? what is that?

Yes... never heard of an OBD1 conversion before huh?

would connect vanos but i dont want it for simplicity and ease of tunings sake. no point changing the head.

huh?

wut

that at me or above poster?

[M-technik-3]

No, I had a hard time following WHAT you wrote. Please reread what you wrote in your original post. Now as OBD I conversions go I have had swapped E30's as far back as 2002 they are nothing new to me.

And I deal with a million or so acronyms so I'm sorry if ETV escapes my memory that is why I asked about it.

So basically you want to back date your intake cam to a higher lift of a NV engine.

[ethrty]

No, I had a hard time following WHAT you wrote. Please reread what you wrote in your original post. Now as OBD I conversions go I have had swapped E30's as far back as 2002 they are nothing new to me.

And I deal with a million or so acronyms so I'm sorry if ETV escapes my memory that is why I asked about it.

So basically you want to back date your intake cam to a higher lift of a NV engine.

sorry mate!

I dont even know where you got that acronym from eh!?

If thats the difference between the M50 and M52 cams then must be yeah.. to be honest i dont know the difference between them, i just been told to use it. what i need to know is if i will have to to get the car running and useable for a few weeks before i install it

[M-technik-3]

I am in the service so we have millions of acronyms so it's honestly hard to remember all of them.

There is a difference in the cams, M52b28 got bigger cams or should I say longer duration cams if I remember correctly than b25tu engines. Now compared to m50b25 cams I am not sure about that. The hot set for NV engines was S50 exhaust cam and move the intake cam to the exhaust side but you don't have that.

I really think you should wire it up as was intended and run a TRM chip and a few toys. M52b28's are great running engines.

[ethrty]

ECU is already chipped, and will be wired up as normal.

only things i need to know at this stage is
1) do i need to install the M50 cam to make the car run? (are the M50nv cams
2) do i need to gut vanos to make it go or can i leave the solinoids installed just disconnected

[matt]

ECU is from a M50b25 non-vanos and my enine is an M52b28 with single-Vanos.

Stop right there. It will not work.

You need an ECU and wiring harness from a 93-95 325i with vanos.

[ethrty]

no i dont, i just need to lock the cams together. the guy i got it off has done it on his.

appears noone knows. ill just have to wire it up and see what happens. if it runs shit ill blame it on the cam and vanos as that will be ther only difference between my engine and his

[Adrian_Visser]

Yeah okay since you know everything then why are you even asking?

For one thing the harmonic balancer 60-2 wheel is different on the NV motors and won't work with the 413 DME so have fun with that!

[ethrty]

because im getting answers to questions i havent asked.

yes i know that.. i have an M50 one

[ethrty]

turns out yes you can run a non vanos ECU on a car with vanos. thought i better post up so all the no it alls are proven wrong!

just took car out for its first drive.. farrrrkkkk its quick!

[flyboyx]

no offense, but now i have a head ache.

[ethrty]

lol i reread through this and cant see how its confusing but never mind all sorted now anyway ha.