N52 Swap Discussion

[Nowayman]

It’s definitely not cheap, but I do have a relationship with my manufacturer so my costs are quite a bit less than they would be otherwise. It does use the rear sump pan, and the z4 arms. The rack does move forward, but with a trick from my Nissan days, I’m able to deal with some of the negative of moving the rack, though it doesn’t move forward all the much compared to some of the modded subframes I’ve seen

[Caperix]

Very nice, does it use a rear sump pan? Billet could get pricy for a subframe but it looks really nice from the photos you showed

[Nowayman]

Something I’ve been working on over the past couple of years. I’ll share more about all of it soon 🤭

That there is one of many 3D printed prototypes. Have the first billet version being manufactured now.

[Caperix]

What subframe are you running?

[Nowayman]

Few (poor) pics of the header fitment 😂

[Nowayman]

That was my initial plan but I decided to take a risk and see if an off the shelf n52 header would fit. 👍

[nando]

The funny thing is I think the franken N52-S54 headers probably cost less and perform better. But you do have to weld them yourself.

[MWC]

You can go on alibaba and buy the roundelwerk/AA/etc. headers directly from the Chinese suppliers. My first set arrived in about a week and I have a second set on the way right now. Shipping is expensive but all in I paid $380 each.

[Nowayman]

I have the roundelwerk headers on mine and they fit like a glove.
Running offset treehouse style control arm bushings to clear the flanges. They’re close but they fit. My flanges are being removed for v-band clamps when I get to the exhaust bits, so there will be even more room.

[nando]

Those look nice, but they're probably useless for an E30 swap. the E90 is a land barge in comparison (I know, I own one), there's like 2-3" extra space in the engine bay to fit these things.

I'd love to be wrong, but probably they won't fit. Has anyone tried any of the cheap ebay headers for size? those are probably not useable anyway, but if you can get a set cheap enough maybe you could have a prayer at fitting some better ones..

[Bored]

You gents see this?

https://www.condorspeedshop.com/products/stainless-steel-n52-headers-e90-e92-e82?_pos=1&_sid=f3ba7ead0&_ss=r&redirect_mongo_id=6139b5e3d47976001eb059d2&utm_source=Springbot&utm_medium=Email&utm_campaign=6139b5e3d47976001eb059d3

[hoveringuy]

Got any plans for more power?

MILVs seem pretty proven. I'd also like to see someone try a set of N55 exhaust cam rockers for more lift but I don't think anyone's officially tried that yet.

Quite possibly. It's sad how quickly you get used to 270+ whp. The problem is that power isn't what's presently keeping me from being faster, I need to add Wilwood BBK in the rear and tweak the handling first. Probaby after next season. I want Mk60 ABS, too...

[nando]

I have a set of N55 rockers to measure.. I really need to get on that. Guy from E90 post sent them to me a few months ago, I've just been busy.

I'm not sure if Steve has plans on adding more power. it's pretty quick the way it is. MILVs aren't going to be a game changer or anything, but they will help you get everything out of the engine and are pretty easy to do. I've had them in my daily driver for a couple years now.

[MWC]

Got any plans for more power?

MILVs seem pretty proven. I'd also like to see someone try a set of N55 exhaust cam rockers for more lift but I don't think anyone's officially tried that yet.

[moatilliatta]

My season concluded with a day at the Ridge today. I don't go there but once a year so it takes me most of the morning to get comfortable with the track. Ran a 2:02.50 which is a full 6 seconds quicker than last year with the M54, but I feel like a 2:00 is in my grasp.

https://youtu.be/14PsjTMkiUA


-Can I do something about the diff breather?

Super cool track!


Fit and NPT adapter or weld one in where the vent hole is, Sometime you can fit and elbow on it. Then hose the vent higher with catch can or filter, Z3M diff cover may help.