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michelin cup tyre pressures

silver7

PCGB Member
Hi,

Has anyone run michelin cups on a 993 rs, any advice on pressures compared to toyos would be appreciated as i have just purchased a set.

thanks in advance
 
WHEN I BOUGHT MY FIRST SET , THEY WERE CHEAP THEN! Guy who supplied worked with me for a morning , heat and pressure got them almost even temp from edge to edge and 36 front and rear ................to be honest have nt used them in last 3 years has the track day compound changed ? This was on a 993 derivative, a little but not much heavier than ur car....i have run 993 rs and cs so think its appropriate comparison ....................my feeling was to run lower , which i do on Toyo 888 s with 2 lbs differntila front /rear , gives slightly better turn in with my modest set up .........everyone will be different , suck em and see ...................but at 36 hot level i am told they were at their stickiest !
 
Typical track pressures are between 1.9 to 2.1 bars = 27 to 30 PSI hot

Road pressures are as Vic said.

ORIGINAL: silver7

Hi,

Has anyone run michelin cups on a 993 rs, any advice on pressures compared to toyos would be appreciated as i have just purchased a set.

thanks in advance
 
silver is this for track or road ?
For track use dry 31 all round hot pressure,36 may be ok for the road.
34 for wet track.
 
Sorry yes for track use. I am suprised that the front and rear pressures are the same but will go with expert opinion! Thought they would be worth a go as have been finding the toyos go off with heat
 
The Toyos do go off with heat ; I then do 10 lap stints and it encourages me to be really smooth!

The upside is they are cheap and grippy.
 
Toyos for me approx £600 set of 4 ...295 and 245/18 s; Cups £1100 + =no brainer!

Used a pair of new rears last Monday , in the dry they moved around , ' cos of extra thick when new , when it rained, i had the last laugh! They re going to last at least twice as long, believe u get 6mm when new ,be terrific in rain........i give up some dry grip to Cups ...............have been known to drop a couple of extra pounds down when new ish ,grip improves
 
I was on the same trackday as Vic on Monday, the Toyos were awesome in all conditions except standing water. Mine were probably half worn, running 32 front 36 rear on my 993 with 18 rims. I am running one size down on the rear at the moment (265 ILO 285) as Steve had run out of the correct size at Oulton Park in March. This leads to a little more roll oversteer in the dry but seems to improve the balance in the wet.
 
In theory might give u better turn in , personally think the differential between front and rear is important ...............
 
This is interesting i run standard sizes 225/40 and 265 35's, shoudl I be running a bigger size?

I was lucky and got a discount on the cups so only paid a little more than toyos which made me give them a go. I still have some toyos which will be fine for wet weather
 
Silver
Standard sizes are fine ,a standard 993 /rs does not need to be over tyred.
A good combo is 285 and 235 for track days but worse on the road for following white lines and uneven surfaces etc,bigger the front tyre the less turn in response you have.
Toyos are ok for the money,they do overheat quickly but are a great winter/wet tyre.But they are no where near the quality and consistancy of grip of the Mich cup.
The dunlop and Kuhmo tyres are also very good,better price than the mich and a little more expensive than the toyo, with a good wear rate.
Kuhmo,s need to purchased early in the year to get the differant compounds and sizes etc,most speed champs boys use them to great effect.For track days a Hard rear and med front is fine,and work well in the wet.
The idea of even pressures is to try and get a balanced platform including side walls of the tyre/contact patch.For hillclimbing i used to play around with lower front pressure for a bit more mechanical grip/less understeer,but this was very often in slow corners and in wet/slipprery conditions.Seemed to work well.
The most important part for any sizes of tyres is a correct set up,which can maximise grip and reduce unwanted heat and roll over etc
 

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