Z4 ESS Supercharged mods

[bmwZ]

Hi!

I decided to start a new thread in here
I will try to show detailed pics and some info on every mod I done and will do.
Since I done some modding on my car, some will maby find it interesting
The thread will be completed over some time.

Hope you will enjoy it

First Photo: When I first got my 2004 2.2 two years ago.....

[StigJ]

I have driven it!
In the low left corner you see something blue. That is a extremely nice E30 M3 Sport Evo.

[bmwZ]

ESS Supercharger kit

Wanted more power out of my 2.2

Since ESS is Norwegian, it was an easy choice to go with a supercharger from them.

The TX kit was fitted with an centrifugal supercharger and it also included a intercooler. With this setup, the car had 235hp on the wheels, it was fast, but wanted more

So I got the Stage2, that included new software(200rpm higher redline), new supercharger wheel and belt(0,15 bar higher pressure), and the ESS exhaust muffler(much better flow). On the dyno the car suddenly had 264hp on the wheels. In other numbers, over 300hp from a 2.2

Remember the 2.2 is only 1250kg, so power to weight ratio is near a Z4M

[bmwZ]

K-Sport brakes

330mm floating discs in the front and rear.
8piston caliper front and 6piston rear.
Included brake pads for roads use and steel brakelines.

When the supercharger was fitted I needed bigger brakes, so my choice was K-sport. The price was really nice, and I loved the color on the calipers

They have just been great to me, big improvement over the standerd ones.

[bmwZ]

H&R Swaybar kit

27mm front and 21mm rear
Delivered with polyurethane bushings

Wanted this ones to ruduce the body roll of the car in turns. When it was fitted, it was a big improvement on the cars ride, good comfort and less bodyroll.

[bmwZ]

Polyflex bushings

Mounted polyflex bushings in all controll arms.

These bushings gave more response to the cars chassis. On the downside it ride more harsh.

[bmwZ]

Eisenmann Soundrohr

To get more sound on high revs I mounted the eisenmann soundrohr.
They replace the middle muffler for more sound and saves weight.
Deeper sound on idle and more pitchy sound on high revs

[esqu1re]

Looks awesome.

[3002 tii]

Never heard of the Soundohr, does it add any drone? What is the diameter of the piping, and is it any different from welding in a straight pipe?

[crfine88]

Great Thread!

I'm subscribed

[bhoch]

Originally Posted by crfine88

Great Thread!

I'm subscribed

subscribing!

[bmwZ]

Originally Posted by Dubbedown

Never heard of the Soundohr, does it add any drone? What is the diameter of the piping, and is it any different from welding in a straight pipe?

Sorry but drone, whats that?
No its no different from welding in a straight pipe. The pipes is the same size as the original size of the Z4 exhaust. But its stainless steel and adjusted to fit right on with flanges

[bmwZ]

Originally Posted by crfine88

Great Thread!

I'm subscribed

Thanks! But you have the greatest thread here

[bmwZ]

Carbon Splitters

Since I allready had tryed to make carbonfibre splitters for the Aerobumper, I tryed again for the M bumper

The splitters I used is an replica from E46 GTR. I got them from an local dealer in Norway, but its possible to get them elsewhere...
I cutted the splitters to fit the bumper, and they suits the shape of the M bumper very well.
After that I grinded and sanded the edges that I cut for a nice finish. This is not that important, because its hard to see this part of the splitter(Wanted it perfect)
And last screwed the splitters to the bumper underside..

On the picture you can see where its cutted. I used the short end of the splitter for my bumper.

[Z4Murder]

even those subtle CF pieces look great. i love your car

[bhoch]

nice pics.. hey.. is that your garage floor? It's nicer (and cleaner ) then my house floor!

Great job on the CF additions!

[3002 tii]

Originally Posted by bmwZ

Carbon Splitters

Since I allready had tryed to make carbonfibre splitters for the Aerobumper, I tryed again for the M bumper

The splitters I used is an replica from E46 GTR. I got them from an local dealer in Norway, but its possible to get them elsewhere...
I cutted the splitters to fit the bumper, and they suits the shape of the M bumper very well.
After that I grinded and sanded the edges that I cut for a nice finish. This is not that important, because its hard to see this part of the splitter(Wanted it perfect)
And last screwed the splitters to the bumper underside..

On the picture you can see where its cutted. I used the short end of the splitter for my bumper.

Sell me your original CF splitters for the Aero bumper!

Btw to answer your other question, drone is just noise/vibration that transmits into the interior/cabin.

[crfine88]

Originally Posted by bmwZ

Thanks! But you have the greatest thread here

Originally Posted by bmwZ

Carbon Splitters

Since I allready had tryed to make carbonfibre splitters for the Aerobumper, I tryed again for the M bumper

The splitters I used is an replica from E46 GTR. I got them from an local dealer in Norway, but its possible to get them elsewhere...
I cutted the splitters to fit the bumper, and they suits the shape of the M bumper very well.
After that I grinded and sanded the edges that I cut for a nice finish. This is not that important, because its hard to see this part of the splitter(Wanted it perfect)
And last screwed the splitters to the bumper underside..

On the picture you can see where its cutted. I used the short end of the splitter for my bumper.

This looks great. They look like OEM splitters. Very nice work.

[bmwZ]

Originally Posted by bhoch

nice pics.. hey.. is that your garage floor? It's nicer (and cleaner ) then my house floor!

Great job on the CF additions!

Thanks, but no, its not my garage floor Its the showroom of the car company I work for. And the tiles are Ferrari Standard

[bmwZ]

Originally Posted by Dubbedown

Sell me your original CF splitters for the Aero bumper!

Btw to answer your other question, drone is just noise/vibration that transmits into the interior/cabin.

Sorry, they where sold with the Aero bumper

Thats what drone is In that case, its no vibrations or bad noises from mounting the soundrohr

[bmwZ]

ESS Exhaust muffler with custom 4 tailpipes

ESS exhaust muffler in stainless steel
Gives 9whp on the dyno with TX supercharger kit(Because of lower backpressure and better flow)

I got this exhaust with the ESS Stage2. Gave more power, less weight and a deeper sounding Engine noise.
It was first mounted with the aerokit rear bumper, but after my second bumper conversion, the M bumper, I had to give it 4 tailpipes. So I kept the muffler and got a exhaust specialist to weld it after my specification

The tailpipes was fittet to suit the shape of the M bumper

(And yes the M-emblem is on)

[r4gs]

^nooo, ur car's awesome as-is and really doesn't need the m badge, although as far as u've come mod-wise, it might as well be an m. urs is exceptionally well done up and one of my favorite z4's!