Bought a Z3 roadster

UK forum for general and technical discussion about the Z3 roadster
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Stubiter
Joined: Tue 21 Nov, 2006 13:26
Posts: 4

  Z3 roadster 2.8
Location: Perth

Bought a Z3 roadster

Post by Stubiter »

Here is the Z3 roadster I ended up buying.

1997 2.8 litre 6 cylinder version.

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My general impressions after 2 weeks of ownership.
- Driving this car screws up my perception of speed (100 km/hr feels like 60 km/hr), (130 km/hr feels like 100 km/hr).
- It attracts bogans in Mitsubishis who want to drag you at the lights.
- Its feels pretty secure at speed on good quality roads but tramlining on crap roads is very noticeable.

I'm not looking to mod the exterior in any way but will probably look into a strut brace subject to insurance implications.
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icarus
Joined: Mon 01 Jan, 2007 21:25
Posts: 485

  Z3 roadster 1.9
Location: Ceredigion

Post by icarus »

- Its feels pretty secure at speed on good quality roads but tramlining on crap roads is very noticeable.
Excuse my ignorance everybody- whats tramlining?
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Jon Miller
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Joined: Sun 26 Oct, 2003 19:17
Posts: 264

  BMW other
Location: Ballina/Killaloe
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Post by Jon Miller »

Tramlining is when the car follows the ruts and grooves in a poorly surfaced road rather than ride over them in a straight line.

It makes the car feel as though it is skitish in a straight line.

I fitted Z3M top strut mounts to my 2.8 roadster to try to help this. The Z3M mounts give an increase in the amount of castor (the element of steering geometry which keeps the front wheels in the straight ahead position) which helped considerably.

Cheers
Jon
burmagirl
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Joined: Sun 09 Jul, 2006 17:11
Posts: 576

  Z3 roadster 3.0i

Post by burmagirl »

I added the strut brace to my insurance (Tesco) at no extra cost - they just need to understand that you are not changing the engine power in any way. On Thursday I called Tesco to change my ins - px'ing for a 3.0i - & have told them to add a strut brace to the ins for that too, although they are out of stock so it won't go on until the end of the month. Again, there's no extra charge.

I think the key is to make sure they understand that it helps to stabilise the car, that Z3s suffer from chassis flex, & that it's just a bit of metal which has no effect on power or engine performance at all.

burmagirl
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spokey
Joined: Fri 20 Feb, 2004 11:11
Posts: 4586

  blank
Location: The Big Smoke

Post by spokey »

Looking at the photo, it seems that you may not have the same tyres right round -- the Z3 doesn't like that. Try to get all four tyres the same, the handling should improve.
Ciao,
Spokey
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smartypants
Joined: Tue 09 Jan, 2007 12:15
Posts: 1210

  Other roadster
Location: Bracknell

Post by smartypants »

Congrats on the purchase - black with red leather is the best! :D
321bhp
Joined: Mon 01 Dec, 2003 19:34
Posts: 2516

  Not specified
Location: essex

hi

Post by 321bhp »

ill second that :D :D
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icarus
Joined: Mon 01 Jan, 2007 21:25
Posts: 485

  Z3 roadster 1.9
Location: Ceredigion

Post by icarus »

So taken with your description of tramlining I forgot to say how much I liked your new Z. Do you really live in New Zealand Stubiter ?
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icarus
Joined: Mon 01 Jan, 2007 21:25
Posts: 485

  Z3 roadster 1.9
Location: Ceredigion

Post by icarus »

icarus wrote: Do you really live in New Zealand Stubiter ?
Sorry Stubiter I must over tired - no excuse for getting the country wrong!
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whiteminks
Joined: Tue 26 Sep, 2006 09:58
Posts: 2768

  M roadster S54
Location: Lincoln

Post by whiteminks »

Lovely car :wink:

Yes tram-lining is slightly disturbing.

I hadn't experienced it until I had the Zed but as I hadn't had a sports car before it was hardly surprising!

Still we love our Zeds don't we :wink:
big cheesy wrote:'I nearly cacked my trolleys till I quickly tuned in'. Yorkshire Cruise 2008.
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c_w
Joined: Thu 19 Aug, 2004 16:50
Posts: 4032

  M roadster S50

Post by c_w »

Jon Miller wrote:Tramlining is when the car follows the ruts and grooves in a poorly surfaced road rather than ride over them in a straight line.

It makes the car feel as though it is skitish in a straight line.

I fitted Z3M top strut mounts to my 2.8 roadster to try to help this. The Z3M mounts give an increase in the amount of castor (the element of steering geometry which keeps the front wheels in the straight ahead position) which helped considerably.

Cheers
Jon
I did too, I think it was after I read about it on your webpage!?

If anyone has a Z3 that has bad tramlining then the Z3M top mounts do solve a lot of it BUT the standard Z3 front springs/dampers are wider than the Z3M units so they sometimes catch the inner arch. However, I have a set of Z3M shocks and springs if anyone is interested in them which would fit a non-M fine.
Stubiter
Joined: Tue 21 Nov, 2006 13:26
Posts: 4

  Z3 roadster 2.8
Location: Perth

Post by Stubiter »

spokey wrote:Looking at the photo, it seems that you may not have the same tyres right round -- the Z3 doesn't like that. Try to get all four tyres the same, the handling should improve.
The front are Pirelli's, the back are Falken. I'm still a novice to a lot of sports car stuff. When I organised a pre-inspection prior to buying, the report said there was about 40% useful life left on the rear tyres.

Actually now with another few weeks of driving I've come to think that its mainly the road surface quality re: tramlining. I've done a bit of driving on some country roads and come to the conclusion that the road funding stops about 25km outside of Perth... We don't have B roads like you have in the UK (some are more like D- and you have to repeat a year of school roads here).

Only had one experience driving in the wet and felt pretty stable. I wasn't being too adventurous because of other traffic at the time.
///M_aniac
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Joined: Sat 30 Jul, 2005 19:34
Posts: 4054

  M roadster S50
Location: Belfast

Post by ///M_aniac »

spokey wrote:Looking at the photo, it seems that you may not have the same tyres right round -- the Z3 doesn't like that. Try to get all four tyres the same, the handling should improve.
So true. I used to have a mix of Bridestone and Michelin on my Zed. The difference putting four new Eagle F1s on the car was massive. Zeds need the same tyres all round.
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cleomantra
Joined: Fri 20 Oct, 2006 23:56
Posts: 298

  Z3 roadster 2.8
Location: fareham; UK

Post by cleomantra »

shes a beauty 8-) 8-) 8-)
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