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Track day tyres

Posted: Wed Aug 12, 2020 3:12 pm
by 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

Re: Track day tyres

Posted: Wed Aug 12, 2020 4:21 pm
by 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

Re: Track day tyres

Posted: Wed Aug 12, 2020 5:08 pm
by Markl17
Conan wrote:
Wed Aug 12, 2020 4:21 pm
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

Re: Track day tyres

Posted: Wed Aug 12, 2020 6:07 pm
by casey
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!

Re: Track day tyres

Posted: Wed Aug 12, 2020 7:07 pm
by 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

Re: Track day tyres

Posted: Wed Aug 12, 2020 8:15 pm
by casey
Yep, that's the size I've been using :thumleft:

Re: Track day tyres

Posted: Wed Aug 12, 2020 10:15 pm
by warpc0il
Looks like the pressure was too low and you might have hooked a curb.

Re: Track day tyres

Posted: Thu Aug 13, 2020 7:19 am
by Markl17
The curb are very tempting there,
Mark

Re: Track day tyres

Posted: Thu Aug 13, 2020 12:01 pm
by 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

Re: Track day tyres

Posted: Thu Aug 13, 2020 7:53 pm
by 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.

Re: Track day tyres

Posted: Mon Aug 17, 2020 4:20 pm
by 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

Re: Track day tyres

Posted: Mon Aug 17, 2020 5:31 pm
by 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.

Re: Track day tyres

Posted: Mon Aug 17, 2020 5:33 pm
by v-rex
Markl17 wrote:
Mon Aug 17, 2020 4:20 pm
Sorry I cannot rotate the pictures
viewtopic.php?f=6&t=82292

In case that helps for next time....

Re: Track day tyres

Posted: Mon Aug 17, 2020 5:35 pm
by v-rex
Are federal 595R's road legal? Can you drive to the track with them? Or do you swap them somehow once there?

Re: Track day tyres

Posted: Mon Aug 17, 2020 5:37 pm
by casey
Road legal :thumleft:

Re: Track day tyres

Posted: Mon Aug 17, 2020 5:58 pm
by New Duke
Just be very careful with them on public roads in the cold and wet.

Re: Track day tyres

Posted: Mon Aug 17, 2020 6:04 pm
by Markl17
New Duke wrote:
Mon Aug 17, 2020 5:58 pm
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

Re: Track day tyres

Posted: Mon Aug 17, 2020 6:05 pm
by v-rex
New Duke wrote:
Mon Aug 17, 2020 5:58 pm
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? :lol:

Re: Track day tyres

Posted: Mon Aug 17, 2020 6:35 pm
by V8 Power
They are ok in the wet you just need to get a bit of heat in them.

Re: Track day tyres

Posted: Mon Aug 17, 2020 8:26 pm
by 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.

Re: Track day tyres

Posted: Wed Aug 19, 2020 3:43 pm
by 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.