Martyn's Z4M Coupe

Really great work you’re doing on this and it’s nice to see this car getting some proper development 8)

I have a feeling that our transmission tunnels are a bit tighter than the E46 and is supposedly the reason we didn’t get the gearbox from the M3. No idea on how that may or may not change things with the DCT box, however, a decent bit of persuasion with a lump hammer will probably sort it.
 
Looks so good! Makes me miss my old SG 3.0si - the silver metallic suits the lines of the car so well, especially when cleaned!
 
Looks stunning - to me right up there up with the best examples of car design of aggression balanced with great design
 
Looks fantastic with the CSL.
Are they original.If not can you tell me where you got them as i am currently looking to buy a set.
 
Absolutely stunning Martyn.
I wish BMW still made cars as good looking as this and the E46 M3. It just doesn’t get any better than this, Z4MC on CSLs. :thumbsup:
Taz there’s a set for sale on this forum.
 
Wow Martyn, that looks amazing!!! :o The silver color really pops! Not sure if you clay barred it or what, but it looks great. I would like to do some of the same mods you have done.

Where did you get that carbon fiber front splitter?
Just the right amount of splitter for a great looking street car. Not overly done like you might expect on a track car.

I ordered the front calipers you have and should be on there way this week. Would like to get the same coilovers you have, I see there is a 4-5 week lead time. At 112K miles, the stock struts are rough on bumps and also the 19" rims probably don't help me either.

Neat to see someone doing all this cool stuff to their M.

~Tom
 
Thanks all.

The wheels are Atomic CSL reps from BM Autosport.

I gave it a quick machine polish as it was covered in crap and light marking where Ive been working on.

The splitter is from here: https://www.schmiedmann.com/en/product/1946128-new?product=FRLSTE8586EDCAR
 
So for those debating whether the transmission tunnel is smaller than the E46 M3.....I can confirm it's not! The trans doesn't appear to be any smaller either!

For reference, Z4M ZF gearbox next to an inline 6 E9x DCT box.

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You all know what's coming next.

Sprung flywheel.

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And of course, the DCT box bolted up into the Z4M.

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No hammering of the trans tunnel at all.

Even the E46 M3 DCT trans mount bolted up to the Z4M trans mounting bolt holes perfect.

I'm absolutely battered from rolling around on the floor under the car so more updates to come over the next few days.
 
Honestly the most consistently interesting thread on the forum Martyn - hats off to you!

Looking forward to more updates as they come - personally DCT-ing my car isn't something I'd want to do but I'm fascinated to see the results you'll have!
 
Martyn said:
So for those debating whether the transmission tunnel is smaller than the E46 M3.....I can confirm it's not! The trans doesn't appear to be any smaller either!
All super interesting as usual Martyn, well done! So it's a box from an i6 correct? I've seen the v8m3 dct box is fairly different dimensions to ours so that makes sense.
Any thoughts why they didn't use the zf instead of the getrag manual box if the trans tunnel is the similar dimensions? I guess there must be some peculiarity of the zf to prevent it? Or just cheaper more likely?
 
Martyn said:
Even the E46 M3 DCT trans mount bolted up to the Z4M trans mounting bolt holes perfect.

Very interested in this Martyn and I hope this works out as you may remeber from this post https://z4-forum.com/forum/viewtopic.php?t=130841
 
I'm confused. Is that an E9x M3 DCT box or an E46 M3 SMG box? There's no such thing as an E46 M3 DCT :!:
 
I did a DCT conversion on my old E46 M3 so had some parts left over like a custom gearbox mount for a DCT box and E 46 chassis.

The DCT gearbox is an e92 335i DCT gearbox flashed with modified M3 GTS software.
 
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