wierd problem with tyres
 

i race my xray T3 at my local indoor club but i'm a few problems with tyre grip i put a new set of sorex 28 with jb inserts on just before xmas car was great did 3 5 min races then club was cancelled because of snow then xmas break so it was 3 weeks without racing cleaned tyres when i got home left them on the car but on a car stand and in the house came to race last night (thur) no grip at all had to change for another new set what is the best way to store tyres/wheels between races ? as surely grip can't go away that quick thanks for any replies

What's your additive regime?

Storage won't harm the tyres, but they "dry out" a little so usually benefit from a little additive to soften them.

You may well find that the colder conditions are affecting the grip at your venue too.

I race a t3 also have you checked the car over to see if anything is broken loose etc,did you hit anything during your last race.
Was anyone else struggling with grip?
Different shell?
anything?

thanks guys for info i clean tyres between heats and apply additive when i get home i just clean tyres but do not put any additive on i check my car all over for damage and anything loose every week also use set up station i don't thing nothing wrong with car as i used new tyres and car had plenty grip

I have some 28JBs that have been on and off the car in maybe half-a-dozen meetings since the autumn. Still going strong. My additive routine is to give them a good soak at the start of the meeting (Nosram carpet, 20-30 minutes, reapplying to keep the tyres wet, wiping before going onto the track of course).

Then during the meeting I have stopped re-applying additive, I just clean with motor spray. I find that the tyres can become greasy if too much additive is applied during the day. I don't have warmers.

PS the car can feel a bit different on very fresh tyres, but they aren't really much quicker unless you are national A-final standard. It's worth adapting your setup to work on worn tyres rather than needing that new tyre boost all the time (which only lasts for about one race!).