I very rarely take part in these discussions but for those of you interested this was my official reply ;
Hi Daryl,
We are very wary of tires we are not familiar with. And these tires are also a lot wider than the majority of cars use.
For tires that are not originally designed for sustained high speed use, we have a supervised limited speed program we will put you through.
This will consist of supervised runs at , 175mph for the first (depending upon license), 185-190 for the second, 200 for the third, then 210, and so on.
The tires will be checked after each run for heat, damage, wear, or any other unusual effects they might suffer.
Handling problems or irregularities are also a concern with wide tires, this is another reason you will be supervised.
Be advised that the race surface on the salt is very different to Maxton.
Please contact Joe Timney for advice on the surface differences.
Please make yourself known to myself or Lee Kennedy upon your arrival in the tech area.
Regards,
Steve Davies.
Chief Car Inspector SCTA/BNI.