I ran my F-Type R at Texas World Speedway last weekend. Started off with 31F/32R's
and pressures came up to low 40's, bleed down to 36/36 hot and that worked the best for our track conditions. Fun GT car for track, tranny worked great in manual mode, and the brakes never showed any fade after 25 min sessions

 

What brakes do you have?
What was your top speed before hauling it down for turn one?

 

I have steel brakes. Saw 140 a few times at the transition into T1.
Hard to see the digital speed readout with lots about to happen driving the low line into T1.
It will be interesting to see what I will hit on the back straight at COTA next month and how the brakes hold up there.

 

Just finished my second track day with the F-type last Sunday. I ran 4 separate 30 min sessions spread throughout the day. I have the carbon ceramics and I did not detect a bit of fade. Sebring is a 3.7 mile long track and I was topping out at 143-147 mph before having to brake for turn 17. I would have went out for more runs but my driver rear tire went flat. I was able to patch the hole and make it home 100 miles away but that ended my track day.

Sebring by mcarman101, on Flickr


MC

2015 Jaguar F-type R Coupe
1996 Acura NSX
1995 Mazda Miata #34

 

So I split the difference at Streets of Willow Springs on Saturday. Went with 29/31 and got balanced hot temps of 38/38. Pleased to report that the Pilot SuperSports are in great shape. You may recall my earlier post showing the entire row of tread blocks ripped out of the OEM P-Zeros from prior track day.

 

The Pilots will be my next set of tires

MC

 

Mine too! I've not heard a single negative about them anywhere.

 

Here in the DC area, the Pilots have been on backorder for awhile. (I'm sure they'll arrive before my car does, though).

 

While I don't have an F-type, I took my XKR to Buttonwillow Raceway 2 Fridays ago, and noticed in the later runs that I had some sliding through the turns and lots of tire screeching. I started the day at about 30psi in the fronts and 31psi in the rears. When I checked at the end of the day my fronts were at 41 and rears at 42 respectively, this on a relatively cool (70F) day. No wonder the decreased grip. Friends of mine said they start the day at 26psi at most.

Next time, I'll do the same. Will be at Willow Springs in March.