Track day tyres

[Markl17]

Hi
I use Nankang na 2 r tyres.i have just taken them off to put the road wheels back on and noticed the front left has a ripple in the inner side wall I will post a pic but hard to see.
It looks like the side wall is de laminating but this is only a guess.it was very hot on Sunday and I was running the tyres at 1.7 bar hot.was this pressure to low or was it just the heat? It would be nice to have some opinions so I do not destroy any more tyres.
Also replacement recommendations would be helpful
Thanks mark

[Conan]

That’s way too low for 1500 Kls of car in that heat
You probably should have been on 32 pounds not 25
I would advise that you buy Federal 595 RSRs for track day semi slicks
Regards
Pete

[Markl17]

That’s way too low for 1500 Kls of car in that heat
You probably should have been on 32 pounds not 25
I would advise that you buy Federal 595 RSRs for track day semi slicks
Regards
Pete

Thanks Pete
I have just had a look at the federal 595 RSRs and they seam a be good value at 105 euro each do they last a decent amount of time? ( if I look after them properly)
Mark

[Markl17]

I've had 5 sets of 595 RSRs and, if dry weather is forecast, usually put the wheels on the car to drive to the circuit, do the trackday and drive back on them. I'd say I got an average of around 7 full trackdays out of them with this usage. The front outer shoulders will wear most, so swapping front and rear pairs helps even the wear a bit. I've even managed 11 trackdays by reversing a set of tyres on the rims to use the better shoulders!

Beware using these tyres in very wet conditions when tread is less than 3mm. Cornering gets quite interesting!

[Markl17]

I think I will order a set is 235/40/18 the best size to buy for stock wheels? This is the size of the nankangs I wrecked.
Thanks mark

[Markl17]

Yep, that's the size I've been using

[Markl17]

Looks like the pressure was too low and you might have hooked a curb.

[Markl17]

The curb are very tempting there,
Mark

[Conan]

Hi Mark,
235x40 is the best size for most on track or road.
The Federal RSRs are good value for money and can last approx 9 open pit lane track days
depending on conditions and driver. You can run them at 30 psi on road and 32 on track, they have a stiff sidewall.
You should run camber of 11/2 to 2 degrees depending on speed of cornering and front wheels straight ahead.
Curbs are there to drive on ( there part of the track )
And what Casey (Malcolm) said
Have fun
Pete

[warpc0il]

Riding the curbs is fine, it's just when you drop in the hole just beyond the curb that it can hurt.

Saw an MX-5 "track weapon" completely remove the inner bead from the rim doing this at Kirkistown, despite the warning in the briefing, and the holes being pointed-out in the pre-start track walk.

[Markl17]

I had a delivery today,I just need to get them fitted now.
Then I have a track day on the 6th of September
Mark
Sorry I cannot rotate the pictures

[casey]

Well done, let us know how you find them.

Based on my experience and many other "trackies" on here, you'll love pushing these on track! The grip and confidence they give powering through corners is brilliant.

[v-rex]

Sorry I cannot rotate the pictures

viewtopic.php?f=6&t=82292

In case that helps for next time....

[v-rex]

Are federal 595R's road legal? Can you drive to the track with them? Or do you swap them somehow once there?

[v-rex]

Road legal

[v-rex]

Just be very careful with them on public roads in the cold and wet.

[Markl17]

Just be very careful with them on public roads in the cold and wet.

The ns2r’s were bad in the wet ,luckily the roads do not get to cold here ,thanks for the heads up.
Mark

[v-rex]

Just be very careful with them on public roads in the cold and wet.

So just like when I had the original RE040A's on my car?

[V8 Power]

They are ok in the wet you just need to get a bit of heat in them.

[casey]

I drove around Oulton Park on brand new 595RSRs in the wet and was impressed by the grip. I found they were "OK" in the wet until the tread got down to ~3mm, then you had to be cautious.

[benedwards64]

Re: pressure, I've run dozens of track days and sprints on either Toyo R888R or Yoko A050s. I tend to set pressures 'cold' at 26psi, then let them rise up to 28 or so.