ddugas01

Anyone put slicks on for track day? I need more grip to compete, I mean run a quicker lap. Please share what you have and any issues. Porsche’s track manual clearly states this is a not allowed.

RossP

True slicks, or something like a Hoosier R7/A7? Big difference.

Rausky

This. R Compounds are very very sticky. Do you need actual true slicks?

Izzone

Dont do it....these cars are very capable with Michelin R comp tires.....invest in a coach that can teach you to get the last 10th out of the car safely utilizing a stock set up. Slicks might make you faster, but also more dangerous to others around you

slicks have a much higher slip angle, that is translated to accelerated wear on the suspension / hubs ect. they also require a very aggressive set up.....and when a slick pops, it will destroy your fender. Ive poped one on a cup before

If you are not used to driving the slip angel of a slick, the car might do things you do not expect at the limit....and it takes very quick hands to fix

tstafford

I think once you've hit the point of wanting slicks on a street car, you should seriously consider graduating to a race car for safety reasons. There are race cars for just about every taste/budget.

flyjets

I run slicks on my race cars its a massive step up in grip. Porsche doesn't recommend it due to suspension wear as Izzone stated.

Your probably loosing grip because you cooking the tires. Throttle control is key took me a while and a few coaches to get this.

Ian

C4SGRPDK

You can run slicks on the 991 GT3's with no problems.

you will need 19 inch wheels

front Pirelli DH 275/675/19
rear Pirelli DH 325/705/19

you will need at least 2.5 degrees of camber front and 2 degrees rear (then adjust to track and driving style). I would not go much more than that if you want to still be able to drive on the road without killing you street tires.

PM me if you have more questions

Jickel180

What kind of times are you running on the OEM tires?

ipse dixit

Running slicks on a street car is sort of like doing meth.

It feels so f!cking good. But then you cook your brains and all of your teeth fall out.

Same with slicks on a GT3. The grip will make you feel like a hero, but then the insides of your car turn to ****.

James-GMG

YES! WE LOVE SLICKS!!!

https://rennlist.com/forums/991-gt3-...l#post16723675

Palting

Most of the guys I know use Hoosier R7 on their 991 GT3. These have the rep of not being as sticky as true racing slicks. OTOH, I can keep up with them using the OEM MPSCs. Unless you have been running in the red or black run groups for a while, I would suggest you stick with the OEM tires and work on improving driving techniques instead. IMHO

montoya

R7’s are a great track day tire. There is no mystery to how they behave on the limit, they are predictable. Ultimately they have a little more grip than cups and you will want your suspension to be set for them in terms of camber etc. As far as extra wear it’s not enough diff with R7’s to worry about, but yes Porsche may deny a warranty claim if they know although they are technically a street tire.

In my experience this is all people run for track days because of cost vs real race slicks which are way more $. You want more grip for a lap or two you can try A7’s but they won’t last as long, but some use them in SCCA for sprint races so they can last with proper care and set up for a 25 minute session, but then they are toast.

Good luck-

TRAKCAR

Many run slicks and Hoosiers and they are all fine with regular service intervals of the uprights and stuff.
ive my set 19” for sale because I’m too lazy to bring wheels to the track.