cups

[Mike R]

Originally Posted by shimmy

Fook

They had better be turbocharged

Dunlops are only £850

I paid £1200 for my first set of Cups back in the day . Gone are the days of getting them for £800, as they're all gone now

[shimmy]

Originally Posted by Mike R

I paid £1200 for my first set of Cups back in the day . Gone are the days of getting them for £800, as they're all gone now

Yes most are. I looked at Cup1 285/35/18 for CSL which you can still get but won't fit under arches with my rims, but only £235 each.

[khooni]

dammit. dun the cup 1s grip in the dry......

please make a big batch for csl owners pls Michelin.\\

shite in the wet but who cares.

[AlexGTT]

Does that mean my 2 x Cup 1 sets are worth £2,500/set?

[khooni]

fat hope. no one wants them but us track rats. With Cup2s and their all weather prowess, I'll offer you 500 quid per set

[LaSource]

I use non N rated Cup 2s (so no special Porsche compound) on a 996 GT3 platform and they work fine - ie far far longer stints than the 3-4 laps suggested above. Fresh tyres in the morning session can take a while to settle down - pm session they are rock steady.

Guess the E46 is much heavier to change the behaviour so much. Though I will try the Cup 2s at some point.


(Btw, I have a full set of slightly used csl size cup 1 which will be advertised soon).

[Mike R]

Originally Posted by LaSource

I use non N rated Cup 2s (so no special Porsche compound) on a 996 GT3 platform and they work fine - ie far far longer stints than the 3-4 laps suggested above. Fresh tyres in the morning session can take a while to settle down - pm session they are rock steady.

Guess the E46 is much heavier to change the behaviour so much. Though I will try the Cup 2s at some point.


(Btw, I have a full set of slightly used csl size cup 1 which will be advertised soon).

The Porsche uses it's tyres differently (slow in fast out) and I understand that the rears are especially developed for the rear engine loading and there is no weight on the fronts (which is the opposite to a BMW). The CSL carries a lot of corner speed and loads the front far more aggressively, hence why it needs something that can take the temps before going off. If you drive your M3 like your Porsche, you may get another lap or two out of the tyre before it goes off, but pushing as hard as you could / would with Cup 1s and the Cup 2s are found wanting.

Even at the 'ring (which isn't overly hard on tyres), you can't do more than two back to back laps with the Cup 2s.

There are three of us that all think the same (all on the relatively heavy front engined / rear drive (BMW) platforms) circa 1300-1400kg.

It will be interesting to see what Alex thinks, as he pushes his CSL hard .

[shimmy]

Originally Posted by Mike R

The Porsche uses it's tyres differently (slow in fast out) and I understand that the rears are especially developed for the rear engine loading and there is no weight on the fronts (which is the opposite to a BMW). The CSL carries a lot of corner speed and loads the front far more aggressively, hence why it needs something that can take the temps before going off. If you drive your M3 like your Porsche, you may get another lap or two out of the tyre before it goes off, but pushing as hard as you could / would with Cup 1s and the Cup 2s are found wanting.

Even at the 'ring (which isn't overly hard on tyres), you can't do more than two back to back laps with the Cup 2s.

There are three of us that all think the same (all on the relatively heavy front engined / rear drive (BMW) platforms) circa 1300-1400kg.

It will be interesting to see what Alex thinks, as he pushes his CSL hard .

Strange coz the old Toyo R888 used to go off jus as quick if not quicker with 6GT3 and Rs than the CSL

[Mike R]

Shimmy,
I can't comment on the R888s on cars I haven't tested, but they were absolutely brilliant on a 260bhp Lotus Exige, and as good as they were on that car, they were absolutely shocking (worse than normal road tyres) on my 550bhp Escort. So much so that I actually thought there was something wrong with the car (puncture), as the car started moving around so much after just two hot laps.

Strangely as a road tyre, the R888s were amazing as well, even fairing well in damp conditions. They just seemed to drop off a cliff on track on any car over 1400kg.

Although the Cup 2s aren't quite as bad as the R888s in the way they fall away when they got hot, the drop-off in performance is annoyingly noticeable and spoils the time on track.

I know a guy that loves the R888s on his Z4M running them at 37psi (and he is fast), so it may also be driving style, but I couldn't get the R888s / Cup 2s to perform like the Cup 1s.

I attributed the poor performance of the R888s to sidewalls that weren't stiff enough - perhaps that was the issue with using them on the rear of the GT3s?

[billyboysm3]

Way to go is some Apex Arc's 10J's 18's for track rims with Dunlop 03G