M50 Manifold

[antodeco]

Hi all, looking at getting the M50 manifold upgrade done, as I would like that bit more power .However, as I'm the 7th owner of the 1998 2.8 Z3, I want to make sure it actually wasn't already done! Is there any way of checking this out? I don't want to buy all the parts and then find out it was already done!

Thanks

 

[Perfectjake]

Is your zed a facelift or preface lift
m52tu = m54 inlet
m52= m50 inlet

 

[antodeco]

It's a pre-facelift .Think it was manufactured in 1997!

 

[Perfectjake]

You could try checking the serial number on the DISA unit and see what cars it was found on, The Disa on the M54 manifold was different to the M52TU. Only 2 bolts to remove.

 

[gookah]

there should be a sticker on the side by the MAF also. you can compare numbers with others on here that have done it:

 

[antodeco]

Thanks all .Can anyone guide me to do it? I'm new to the Z3 engine (always been on classic minis) so not sure locations/access to the various things! Thanks

 

[5harp3y]

If you want to know if the m50 manifold had been done just Google m50 manifold and then look at your engine .

It will be very obvious if you have the m50 or m52 manifold as they look completely different

 

[antodeco]

I'm aware that they look different .I just don't want to take everything out and realise it's already done, or realise it's not and put it all back together and then redo it again when swapping it out.

 

[Dino D]

You can tell by looking at it, post a pic of your engine bay and we can see.
The M50 intake tubes are fatter and straighter.
The standard ones are curved by comparison.
Don’t have a pic to upload from my phone

 

[5harp3y]

I'm aware that they look different .I just don't want to take everything out and realise it's already done, or realise it's not and put it all back together and then redo it again when swapping it out.

You don't have to remove anything.

It's the whole inlet manifold

Just open your bonnet and look

 

[Jack Ratt]

http://www.e30zone.net/e30zonewiki/index.php/M5x_Inlet

This might help

 

[antodeco]

Thanks for those details. Exactly what I needed. As I've never seen the other manifold I've no size to compare it to, so photos attached. They look skinny so i assume its still the m52? Any guidance appreciated!

 

[Dino D]

Yep that’s the standard one.

 

[antodeco]

Fantastic thank you. Ordered a new manifold there!