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Searching for power

5 Jul 2014, 8:33am
My Z300S is a bit tame with only ~200BHP compare to the 585BHP in my Mercedes.

If I am going to be using it regularly I need more POWEEEERRRRR!

Anyone any experience / stories about these superchargers?

http://www.superchargerswarehouse.com/BMW-Z3-Superchargers/

It seems an easy 80BHP and less faff than changing the inlets for ~20BHP which seems to be the main alternative.

Any other ideas welcome. I am also looking on BMW forums so if I find anything I will report back
5 Jul 2014, 8:53am
WCA that's just rubbish really.

Its just a little fan blowing some air into the air intake, and to charge a hundred pounds for that is robbery.

80 BHP? that kind of power increase costs a good £1500 plus.

A proper turbo really whangs the air into the intake, and in large volumes too, it spins at 40 000 revs to achieve that as well.

A small electric fan compared with a real turbo is so petty by comparison at air moving, its not even in the same league.


I went this route ages ago, and all these BHP claims are false,
As far as I remember, one of the car TV programs tested one or two of these gadgets and, one actually impeded the airflow and power was lost because of it.
5 Jul 2014, 12:41pm
Having seen the video, I think the leaf blowers may spoil the look of your car WCA!

I rest my case........
5 Jul 2014, 2:17pm
Done with typical Aussie understatement...
5 Jul 2014, 7:52pm
micky1mo wrote:
The only problem is that BMW V12 runs 3 ECU's, 1 for the left bank, 1 for the right bank and 1 to join the other to together, I only know as we'v worked on one. :fear: :fear:


Gaffer tape all 3 ECU's together and it only has 1 to worry about!!
5 Jul 2014, 8:57pm
Anyone who thinks a 12 volt computer fan can produce 80 BHP
has somehow missed the boat as to a basic grasp of physics and engineering I reckon.......
5 Jul 2014, 9:13pm
I think a pipe from one of the nose vents to the air intake would probably be just as/more effective.
5 Jul 2014, 9:25pm
To be honest Chris, adding a V12 to run the supercharger isn't much more sensible that using a jet engine.

Just wondering how practical it would be to fit a jet engine...


...it would blow away the F1 engined Renault Espace they did.
5 Jul 2014, 10:53pm
Fitting a jet engine to a road vehicle

It looks fairly straight forward WCA, it's already been done some years ago on a van like mine and taken down the drag strip several times.

https://www.youtube.com/watch?v=W9siUbN0JD0

[IMG][/IMG]

[IMG][/IMG]

Most likely would not look right on your car though.....
8 Jul 2014, 6:14pm
WorldClassAccident wrote:
Any other ideas welcome. I am also looking on BMW forums so if I find anything I will report back


One of the first things I thought of when considering the Z3... the 1.9 is cheaper, the 2.8 is a good start and how easy would it be to take an installed Z300S kit off and put it on an M version of the Z3 later on. Now I know and there is a ready market for ready stripped donors!!!
8 Jul 2014, 6:27pm
Hey WCA, have you considered Nitrous oxide?

Your 200 BHP ought to be enough to compete with the mums on the school run in their Chelsea tractors, but with nitrous, when you felt adventurous, you could just hit the fast button, and instantly you would have 300BHP!

( Assuming you fitted the 100 BHP jet to the system)

That should be enough to piss off most things on the road.

A lot cheaper than a proper turbo system.

If you cannot run to that, perhaps and engine re-map may work for you? Worth checking out if you are serious about more power....
8 Jul 2014, 10:00pm
Can you run NOx as an always on option? I thought it was press the button for a short burst.
8 Jul 2014, 10:05pm
You are correct, push the button when you want to win!
8 Jul 2014, 10:06pm
If you ran it all the time, it would melt your pistons or run out, whichever came first!
9 Jul 2014, 8:26am
I need maximum attack at all times.

Might keep this one tame and see if I can sneak another car past the wife with full street fighter spec.

If I paint it black too and make sure they are never seen parked together she might never know...

Just read slagenracings engine tuning posts and have decided to crawl away into a puddle of inadequacy. I was thinking of bolting on a hair dryer while he is machining the valve ports!!!
9 Jul 2014, 8:45am
WorldClassAccident wrote:
I was thinking of bolting on a hair dryer while he is machining the valve ports!!!


Didn't your Z3 donor come with a selection of hairdryers, curling tongs, woman's weekly's etc in the boot? Have a look, they might still be there...
9 Jul 2014, 10:41am
Nice one Towed!!!
9 Jul 2014, 8:29pm
WorldClassAccident wrote:
I need maximum attack at all times.

Might keep this one tame and see if I can sneak another car past the wife with full street fighter spec.

If I paint it black too and make sure they are never seen parked together she might never know...

Just read slagenracings engine tuning posts and have decided to crawl away into a puddle of inadequacy. I was thinking of bolting on a hair dryer while he is machining the valve ports!!!


Good plan Nick, but make it a SWB so you don't get the hairdressing jibes!
19 Jul 2014, 12:26pm
I have been searching everywhere for some extra ponys,

Best results from the 2.8 follow the same route as most other cars,

Air filter
Exhaust
Rolling road remap.

For the 2.8 however, you can have either the 2.5 inlent manifold and throttle body or the dual vanos can use the 3.0 inlet manifold, supposed to get about 200bhp at the rear wheels.

I cannot find anyone to do the conversion in the UK. I have tried contacting Bmwsparepart in peterborough but not had any luck as yet.
they advertise the swap at £350 including remap.

If anyone knows of any reliable garages that do this sort of conversion please post a link.