My 2006 Z4 3.0Si Supercharged, new updates

The Z was delivered at ESS yesterday. Looking forward to pick it up again :evil:

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Before I drove the Z to ESS, I got the time to mount my new brakes :)

This is the parts used:

Front:

-Original Bmw Performance calipers
-Original Bmw M3 CSL rotors
-Original Bmw Performance brake pads
-Special made brackets for caliper made to fit Z4

Rear:

-Original Bmw 3.0Si calipers
-PF drilled rotors
-Original brake pads
-Mercedes E-Class caliper covers

Those front performance brake calipers was not a great match to my new paintjob, so I decided to paint them Lamborghini Rosso Mars 3 stage red.
As I kept the original rear caliper, I had to do those as well.

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Rear brakes:

Those rear brakes was not that good :)
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To get a nice finish on the rear caliper, I grinded them smooth, a work from hell :evil:
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After the pro paint job
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To give those rear calipers a nicer look, I modificated a Mercedes E-class brake cover :)
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After fresh paint, the logo was oversprayed and sealed with some clear coat.
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New rotors mounted
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Cover mounted to caliper and spring
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Front:

Before
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After
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So finally, here's the dyno graph I got from ESS today. Very happy with the numbers :)

This is stage 1+ at 5psi.
 
Excellent figure then! How did they find the installation? Was it straight forward or a bit of a ball-ache?

With the 3.0si being significantly lighter than the m, I can imagine it really flies ;)
 
Ed Doe said:
Excellent figure then! How did they find the installation? Was it straight forward or a bit of a ball-ache?

With the 3.0si being significantly lighter than the m, I can imagine it really flies ;)
Click to expand...

They had to do some mods, since the kit was designed for the E90.

Yes, the performance is perfect for the look of the car now :)
 
There was no space for the airfilter to be mounted in front of the supercharger. So ESS have buildt a new steel tube before the airfilter, they have also changed the supercharger belt position vs E90 setup. Having electronic steering, it also have a different belt. Can not feel any heat soak, but will try to run a cooling line to the air filter soon.
The air have a shorter way into the supercharger now. That gives more power if it's not running too hot.







 
What does that steel braided hose do what seems to go to the compressor?
Is that oil lubrication?

Have you already figured out how the blowoff at throttle lift is controlled?
(vacuum? electronically?)
Or is it not necessary? (maybe due to valvetronic and they just let the pressure on)

And what's that hose just behind the air filter (and I guess map sensor)?
At first I thought oh that must be for the icv. But does the n52 have an icv? How does that work with valvetronic?
 
GuidoK said:
What does that steel braided hose do what seems to go to the compressor?
Is that oil lubrication?

Have you already figured out how the blowoff at throttle lift is controlled?
(vacuum? electronically?)
Or is it not necessary? (maybe due to valvetronic and they just let the pressure on)

And what's that hose just behind the air filter (and I guess map sensor)?
At first I thought oh that must be for the icv. But does the n52 have an icv? How does that work with valvetronic?
Click to expand...

That steel hose is just for changing oil on the supercharger. It has it's own lubrication system.

Sorry, can't help you there. I have not done much research on how thing works. I trust ESS, they have made dusins of kits.
 
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