delanobe

Last weekend we had the famous Porsche Francorchamps days here in Belgium.
We had a really great time and were extremely lucky with the weather.
All the forecasts predicted rain showers all weekend but instead we had a only sun and 22°C.
Because of this forecast I left the PS2's on the car and went to Francorchamps.

The day was divided in 3 40min sessions, 1 at 9h, 14h and 16h.
So here is my question, after +/- 20min the tyres became very greasy and grip was very low.
Any of you guys use these tyres on track or are they only good for the street??

The first 20min my times were very constant around 2,57 / 2,59min ( Is this respectable for a novice driver?) but after 20min I lost more than 10sec a lap because the tyres didn't give any confidence.


Here are some pictures of the car ready for battle

CRex

Beautiful car, what color!!

PS2=street tire. Any claims otherwise is delusional. That, or they may last you long time if you drive them at 6/10ths.

I'll leave others with actual Spa-F experience to comment on your laptime, but tirewise you should get at least a 2-3% bump going up to MPSS, which also lasts much longer under track conditions than the antiquated PS2.

johnwb

I have run PS2 on track and found the same thing. After 20 minutes they get greasy.

zedcat

what were your pressures before and at the end of the session? I have to bleed some pressure off MPSS (on Cayman) when they get hot. that seems to help.

by the way, beautiful car. Aqua blue? I am biased -my Cayman is aqua blue!

Igooz

+1...PS2 are great for sliding around! And for sure if the pressure is high....

mdrums

Tracked PS2 for a year while learning. OK tire for that but now there are much better street tires for the track.

If your PS2's have lots of street miles and are years old then then will be horrible if they were new they are OK for a beginner but driven at advanced driver laps they will not last with grip.

Awesome looking car with those wheels!

delanobe

No, it's cobalt blu
Thanks for the compliment

delanobe

They have +/- 8000km on them and are 2 years old.

Thanks for the compliment :-)

pvdw

Hi,

Ran on PS2 as well and needed to lower pressure a couple of times to keep them at 2 bar,
Higher and they start to slide after 10 min...

Time is great for novice and especially on street tyres !
C U @ Franco Fun, less crowded more driver oriented !

pvdw

Ps, very very nice looking car !

delanobe

Hi,

I was never below +/- 2,8bar so now I know why the car felt lose just after a few laps

How was your car with 2 bar?? I did read that the PS2's have soft shoulders and that they need more pressure than the PSC's?

Anyway, I'm going to order a new set MPSC's for the summer/dry track days on the BBS and put the PS2's on the original wheels.

Even when driving on the street you can feel that the mpsc is a much nicer tyre and the car also feels more planted.

When the new mpsc's are installed I'm going to install rss rear toe links and do a new alignment because I have no idea what i have now.


Thanks for the compliment :-)

TRAKCAR

MPSC are undrivable in heavy rain/standing. Belgium may not have the heavy monsoon rains of Florida but the Michelin SuperSports are great in heavy rain, last longer and are not that much off lap times that MPSC offer.

With a good OEM allignment and Supersport the car will drive good. Maybe try a set of those if you plan to drive the car in all weather.

My car is still on the MPSC it came with but it will get SuperSports soon.

delanobe

Hi Peter,

I know that MPSC are not the best tyres for cold weather and rain. That's why I was thinking of using the PS2's on the original wheels for rainy days etc..
The MPSC will be used on the E88 for dry weather only and 5 track days a year.

My biggest concern with a street tyre on a track is that they get very greasy just after a few laps.
How does the MSS compare with the PS2 and MPSC?

Thanks

TRAKCAR

Well I don't have exact numbers, but I always had PS2 on my street cars and took my CL65 to the track for maybe 10 laps. Was ok but not great grip and the wore quite a lot.

Heavy car big power, so who knows.

Put SS on my wife's BMW 535 and it drove pretty good on track, only did also maybe 10 laps. with no visible wear, lighter car, less power etc.

I drove the RS on track with SuperSports and I think fresh they are a bit slower then MPSC, once they wear down, pretty close. I compare MPSC with the ToyoRA1/Nitto and the SuperSports seem a bit slower, but really not much and they feel good and don't wear much. So they will be much cheaper to run! Also very easy to drive as they give away very gradually and once they give up, it does take a bit longer to get the car to grip again.

IMHO, good enough for a 9/10th track day and on a rainy day they will be awesome.

Not relative to track wear, but My wife's car now has 17k miles and they are still 50%..

dan212

Ran PS2's in dry and wet. They will go up in pressure more than MPSC's and the like. Never felt greasy when I kept the HOT pressures on target. They can go up as much as 12 pounds if you drive them hard. Were your hot pressures on target?