spiller

As the title asks. First time using DH and wondering if I can rotate them care free. Hankook F200 I have used previously are directional (which I found quite surprising). Is this also the case with the Pirellis?

Secondary question, do people balance the wheels after fitting slicks? It is my understanding that they rotate on the rim anyhow but I’ve always found not balancing to be horrible for vibration on track! More so front, rears not really an issue.

ghhally

Even if they are directional, you still can swap them side to side. Inner will become outer and visa versa.

Cemoto

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If anyone can chime in on how to figure the DH date codes it would be of help to me. PCA Club Racing rules require the yellow bar code label outboard and the red inside from what I've read. . . .

https://pcaclubracing.org/wp-content...acing-2020.pdf

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bcocar

I've never had a problem with Pirellis rotating on the rim - only with something like a Hoosier. Always balance them and tape over the weights with heat reflective tape. You'll also need to clean out the rubber debris regularly (especially on the front wheels) as you will accumulate quite a bit that will throw them out of balance also.

38D

They are not directional. Either side is fine.

And yes you should balance them.

uscarrera

Just a heads up Pirelli tires are no longer required in GTC3 for the 996 Cup Cars in PCA racing.
Rich

Steve113

Rich thats news so whats the deal?

rebrewer

My Pirellis will clock on the rear so I use EuroPaste Tire Lube as recommended by someone at Pirelli who mounts a lot of tires. I just bring it with me to wherever I'm having them mounted.

Bob

uscarrera

From PCA 2021 rule change notice

GTC3 (996)

There is no longer a spec tire for these cars. Rims must stay the same, but tires are free (same as GTC1 and 2).

Rich

spiller

I bolted on some new ones today and marked the tyre and rim with a paint pen. Started them 19psi cold and interestingly only the left rear (clockwise circuit) moved...approx 5mm of clocking. Also the tires were not balanced despite my request! The first session was awful with the car wandering all over the track. Luckily a shop at the track was able to do them for me. Instantly picked up a second of lap time despite the track temp having risen in what was a rather hot South Australian fall day.

THJR

You should be fine rotating... I've done it but never during an event that was timed, just for testing... but times showed to be very similar with likely only change being track conditions, etc.

The the Pirelli will 110% rotate. I still balance them, sometimes just the wheel or wheel with fresh tire mounted.
Once they do a full 360º they self balance themselves! Just have to deal with a few laps of vibration! hahaha

I am going to try euro paste this year as someone mentioned above.

burgerkong

Try hair spray as well. Personally my wheels have knurled beads to combat this, and with hairspray I've never had a tire rotate on the wheel.

Phokaioglaukos

So no more Pirelli hats and the post-race hat dance?