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Running report on the Z4MC

I bought the Z4MC in April because I needed a car for the Nurburgring. My usual steeds - a race Porsche 928 and a VW Golf Mk2 were being rebuilt so I paid a visit to Mr Lovett in Swindon and walked out with the cheapest Z4MC in the whole of Europe at the time. :lol: The car had 3.4k on the clock and was nicely run in for me... :evil:

Since then I have done 13.5k miles with one oil service, one intermediate fluid change (engine, gearbox and diff) performed by myself, two sets of carbopads at the front and a set of textar rears. The car has done more than 150 laps of the Ring, a track day at Combe and also took me and SWMBO to the South of France and Cornwall with our bodyboards.

The positives first - the chasis is great. BMW has done wonders to make the stock suspension to work so well. The damping is just right and the rebound is spot on.

I still don't get all the magazines talking about it being unsettled over bumpy surfaces - I think that if it inspires confidence at the Ring, it must be OK. Also contrary to what a lot of people here say I don' t see the need for a front strut brace. The car needs a lot more camber though. 20 laps of the Ring were enough to feather the outside of the Conti's, which are trully awuful. The good thing is that the car is very easy to steer on the throttle - initial understeer could be quickly balanced out by using the gas pedal.

The brakes in standard form are shoddy, but show me an ///M car with good ones... Carbopads from http://www.ring-racing.deare easily the best option. I have not even bothered with changing the hoses or the fluid - they stop the car pretty well after the new pads were fitted.

I would not talk about the drivetrain - it is superb - any engine wich can spin to 8000rpm, and then pootle in London traffic, and not use any oil between changes is superb. Performance in a straight line is stonking - many times I have played with friends' CSLs and 996 GT3 and the Z4M would happily stay with both till the 165mph indicated limiter kicks in. Fuel consumption has been firmly stuck in the high 27-28mpg and once I got 31mpg on a run to Germany through the night. Trackside I get around 10mpg :cry:

The negatives: built quality is shoddy. I have owned other ///M cars before and the Z4MC is badly put together in comparison. I guess it runs through the industry, but the quality of the materials is well below the one used on my E30 320iS or one of the Porsches. No rattles or squeaks yet, but I doubt that the Z4MC will survive to 220k miles as my Porsche did before it was turned into a race car...

What will happen to YF06HLP now that it probably has the highest mileage in the UK amongst the Z4Ms? Well, a set of Porsche brakes is going to be fitted all round, the seats are being changed for a set of Recaro PP trimmed in black leather with ///M stitching and I am trying to get a harness bar for the TRW harnesses. Do you get my drift? :rofl:
 
I'm looking for an M Coupe for exactly the same purpose. Glad to hear it's holding up well for the job. Only main difference is I'm looking to swap from my 968 (rather than 928) to something with a bit more power.

It's interesting to hear you say it doesn't need the strut brace. How adjustable is the geometry? And what set-up are you running? Think I'll get the dealer to set it up before I buy.

And is ring-racing still trading? Thought they'd shut whilst they looked for new premises? A mate was meant to being me a set of their pads back last weekend, but called in and they were closed (collapsing roof apparently).

Finally, did you try the Cayman S before going for the Z4MC? If so, what made you go with the decision you did?
 
Cheburator Are you still on the Conti's?

Although I don't have the same track experience as yourself, I fail to see how anyone can find the standard setup ideal (tyres/suspension). I'd be interested to see what you thought of mine, for example, with the H&Rs and PS2s (on CSL wheels). The difference for me was night-and-day. I came from a VX220, and the Z4M in comparison, out of the box, had horrible road feel. The Conti's gave very vague feedback and little feeling of the limits of the car. With the new tyres and springs, the car is a LOT more planted, and the feedback is transformed hugely.

You go to the 'Ring quite often don't you? Are you likely there weekend 6/7th October?
 
willdew said:
It's interesting to hear you say it doesn't need the strut brace. How adjustable is the geometry? And what set-up are you running? Think I'll get the dealer to set it up before I buy.

The front suspension is based on a McPherson strut - not very adjsutable at all. You can get -1.75 max without camber plates. Castor is not adjustable without camber plates. I guess the same as on a 968. I run a stock set-up because I can't be asked sorting it :oops:

willdew said:
And is ring-racing still trading? Thought they'd shut whilst they looked for new premises? A mate was meant to being me a set of their pads back last weekend, but called in and they were closed (collapsing roof apparently).

They are trading and they are not - you can't get work done, but they will happily sell you pads and other consumables.

willdew said:
Finally, did you try the Cayman S before going for the Z4MC? If so, what made you go with the decision you did?

I did and I hated the blandness of it both as a design and as a chasis. The Z4MC is a "driver's" car by comparison. You really need to grab it by the scruff of the neck to get the best out of it. Yet to be passed by a Cayman at the Ring, whilst for all its faults drummed up by EVO and the like my stock Z4MC will happily stay with Sabine's Ring Taxi around all day. Moreover, if I wanted another Porsche in the family, I would have bought a LHD 993 Turbo...
 
Cheburator said:
The front suspension is based on a McPherson strut - not very adjsutable at all. You can get -1.75 max without camber plates. Castor is not adjustable without camber plates. I guess the same as on a 968. I run a stock set-up because I can't be asked sorting it :oops:

Nope - the 968 is fully adjustable. Plus I've for camber plates too. I run -3d camber on the front as std. -1.75 isn't very much for track work - do you find it ok? I also then run full castor to balance out the camber when in the straights.

Cheburator said:
They are trading and they are not - you can't get work done, but they will happily sell you pads and other consumables.

Good. I'll give them a ring. One of the other companies on the trading estate told my mate that they couldn't even go into the building at present as it was unsafe. Don't suppose that will last long though...

Sixspeed - your car looks great. And I'm at the ring that weekend, so would appreciate a passenger ride at some point if possible. That's going to be my last trip there before the 968 goes up for sale...
 
willdew,

More than happy to give you a lap - but I should add, I have about 30 laps under my belt at the 'Ring, so am still off the full pace somewhat. I think Cherburator would probably come past me... twice... even on those sodding Conti's.. ;)
 
sixspeed said:
Cheburator Are you still on the Conti's?

Although I don't have the same track experience as yourself, I fail to see how anyone can find the standard setup ideal (tyres/suspension). I'd be interested to see what you thought of mine, for example, with the H&Rs and PS2s (on CSL wheels). The difference for me was night-and-day. I came from a VX220, and the Z4M in comparison, out of the box, had horrible road feel. The Conti's gave very vague feedback and little feeling of the limits of the car. With the new tyres and springs, the car is a LOT more planted, and the feedback is transformed hugely.

You go to the 'Ring quite often don't you? Are you likely there weekend 6/7th October?

No-no... I hate the Conti's with passion :lol: They are beyond crap, they should be discarded by a way of burnouts in a car park :rofl:

But the stock suspension is brilliant IMHO as it is a nice compromise - I never bought the Z4MC as an out and out track car - for me it is a great car for everyday use and a capable toy on track. I will take you out for a spin in the 928 when it is finished on its fully adjustable (bump / rebound) LEDA race suspension and you will see what I mean. That set-up is uncompromising. To achieve the same in a Z4M in terms of handling will absolutely destroy the car...
 
Glad to hear the Conti's are worthless crap. I guess that means I'll feel like I have a totally new car when I switch them out.
 
I took the M around Combe a few weeks back on a porsche day, the only thing that was faster was a 993 turbo with mega slicks and shed load of power, the body control is superb and the balance is spot on but a tad too much understeer, easily sorted though. I'd agree that the standard suspension is all you need really, a pad and fluid upgrade is also hugely worthwhile but that'd be all i'd do
 
I took my Z4MC to Bedford Autodrome a week ago too and driven well I could easily get past M3s and CSLs that were there. Even the non-supercharged Atom wouldn't keep up in the straights, although it would be much faster around the corners. The only thing faster there was a 996 GT2 RS.

I'm also very happy with the suspension on my car. I think it is a good compromise between road and track use.
 
tehdarkstar said:
I took my Z4MC to Bedford Autodrome a week ago too and driven well I could easily get past M3s and CSLs that were there. Even the non-supercharged Atom wouldn't keep up in the straights, although it would be much faster around the corners. The only thing faster there was a 996 GT2 RS.

Isn't the 996 GT2 RS an Edo Competition special?
http://www.edo-competition.de/Porsche-GT2-RS.16.0.html?&L=2
 
tehdarkstar said:
No, it was actually a standard GT2 RS... Nice car though...

I don't think they make a 996 GT2 RS?

Edited to add: The Edo GT2 RS is out on the Nordschelife right now:
996GT2RS.jpg
 
tehdarkstar said:
Whas that only GT2 then? Sorry for my ignorance... :oops:

I've seen that same car at a number of trackdays too.
It's silver and has been heavily modded.
Down the straights it's totally insane....
 
tehdarkstar said:
chad5k1 said:
what conti's does the M run as standard?

Conti SportContact 2. Manure... :(

:roll:

ContiSportContact. The ORIGINAL ContiSportContact, not CSC 2, not CSC 3. The first generation Contis.

Before you all jump on the Contis and proclaim it as the worst tire ever made, just be aware that these Contis are specially formulated for BMW to be used on the E46 M3 and they're different from the typical first generation Contis you will run across.
 
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