Back in Z4MC ownership- and building a track beast :)

Beedub said:
tom our budget semi slicks sit pretty much identical....

Budget slicks for the WIN !!

Ha ha! Indeed, they're proving hard to knock at the price I must say. I had the feds on my old 968CS and loved them, albeit that was a bit lighter. There's some good deals around for the new Cup 2 Michelin which they do in our size so thinking of trying them for next year, heard a lot of great things about them... I should be able to put some comparative lap times together, interesting if irrelevant :wink:
 
Cups 2's are not a good track tyre... Cup 1's are far faster.

I bloody hope that the R888's don't rub! Would be just my luck to order exactly the same spec stuff as everyone else only to find that it doesn't fit!

I won't find out until the end of next week either as I'm still away on business- it's killing me.
 
dannyg_m3 said:
Cups 2's are not a good track tyre... Cup 1's are far faster.

I bloody hope that the R888's don't rub! Would be just my luck to order exactly the same spec stuff as everyone else only to find that it doesn't fit!

I won't find out until the end of next week either as I'm still away on business- it's killing me.
Interesting re the cups, thanks will give that some thought.
Feel your pain if the R888's don't go, that would be mighty annoying. I should imagine though that you could sell them on an M3 forum for not much loss. Massive faff obviously I know, but still. The Feds I'm running came to about 370 all round, they're not that bad (honest !), and beedub swears buy his nankangs again a similar price I think.
Let us know how you get on :thumbsup:
 
I'm running Nankangs in 255 too, but the soft compound. They're 90% of the R888s on my Westy at a small fraction of the cost.
 
TomK said:
dannyg_m3 said:
Cups 2's are not a good track tyre... Cup 1's are far faster.

I bloody hope that the R888's don't rub! Would be just my luck to order exactly the same spec stuff as everyone else only to find that it doesn't fit!

I won't find out until the end of next week either as I'm still away on business- it's killing me.
Interesting re the cups, thanks will give that some thought.
Feel your pain if the R888's don't go, that would be mighty annoying. I should imagine though that you could sell them on an M3 forum for not much loss. Massive faff obviously I know, but still. The Feds I'm running came to about 370 all round, they're not that bad (honest !), and beedub swears buy his nankangs again a similar price I think.
Let us know how you get on :thumbsup:

the nankangs are a touch more but literally like 150 more... nothing in terms of the tyre world and they offer some mega hit performance for the money, i went for them over the federal for a more durable tWR, stronger dry grip and apparently better in the wet. what i am sick to the back teeth of is people pointing out the nankang name and taking the piss for ages about how are these on the car, and whats the point after the car has thousands spent and blah blah blah... the brand snobbery when it comes to tyres is unreal.... i Then proceeded to SMASH the dudes sprint time in his gt3..

the ns-2r is insane for the money.... i only went to them for a stop gap but the best decision I've made was dropped to 18s and running these semi slicks.... they make the suspension work hard!
 
Sounds like I'd be silly not to try them, plus no one looks at my car very much, apart from me!

Also sounds like R888s are off the menu for us, I had considered them, hope you prove otherwise danny. ETA: or just a 'thinner' 255 section.?
 
in the 888 we'd need the 255 section... which according to the site comes in at 268mm .. lol! insane with discrepancies
 
Have you tried the NS-2Rs in the wet Beedub? They are absolutely, shockingly bad. Infact they are downright dangerous.
 
I found them ok in the wet, but I've covered only a very limited number of road miles with them, mostly to and from track days. On a wet track, they were much better than I expected but there was no standing water of note, so no significant risk of aquaplaning compared with road use.
Today, I did find that they get a little slippery when really hot though. I was at Thruxton where every corner from Noble to the Club Chicane is taken at 100+ mph and I was hitting 140mph on Woodham Hill before braking hard for the chicane. By mid morning I was starting to develop a four wheel drift through Goodwood and Village and a much greater propensity for power oversteer through the tight bits. It's an excellent track and really put the Zed through its paces but I think I found the limit of the tyres. The soft compound gives fantastic grip on short technical tracks but I wonder if the medium compound tyre would be better for very fast tracks?

This is how the tyre surface has fibrillated from today:



And this is the protrusion with 255 width tyres (in response to the earlier thread):

 
Ok, so driven the car on the R888, and they do rub on the wheel arch inner marginally. Having said that I was driving the car will a boot-full!
6 disc rotors, 4 calipers, engine mounts etc etc.

Once the KW Clubsports are on the car, I will raise the rear ride height anyway to give more travel, this combined with extra camber and firmer springs and dampers will sort it out.

I'll get 255's once these are worn out ;)
 
Try to determine exactly where they are rubbing - you may find its the inner arch liner. I need a different and fairly precise thickness of spacer with each of my sets of wheels to prevent rubbing at the inboard side without causing rubbing at the outer arch.
 
bmwz4mc those tyres are wearing so well!! totally even wear pattern too!! impressed with how they are coping !!
 
dial in a touch more neg camber and in 888s you need the size down....

Ns-2R you can run the optimum size for the rim... 235 - 265
 
dannyg_m3 said:
It says on CA's website that they don't fit with KW dampers :-/

Any thoughts?


Email ground control and ask why?? probabaly only needs shorts end links I'm guessing.
 
H&R ARBs don't fit without shorter droplinks either. The ends of the ARB foul the brakes pushing back the piston on full lock. The consequence of this is absolutely no brake force after manoeuvring at full lock until the pedal has been pumped a couple of times. This didn't happen with Eibachs and stock dampers but did with KW Clubsports. Adjustable droplinks solved the problem.
 
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