Discussion
I have a Fury that I use for sprints/hillclimbs and it current runs 7.5/21.5-15 front, 8.0/21.5-15 rear slicks, 7J rims front and rear.
My competition cars have always run narrower tyres at the front, as do most cars I see at events, but production road cars generally have the same size both ends, my thoughts on buying new tyres are to use 8.0/21.5-15 all round.
Does anyone know of a reason not to do this ?
Thanks.
My competition cars have always run narrower tyres at the front, as do most cars I see at events, but production road cars generally have the same size both ends, my thoughts on buying new tyres are to use 8.0/21.5-15 all round.
Does anyone know of a reason not to do this ?
Thanks.
I did think of that but other similar weight cars are running 8" and even wider at the front and not having a problem, the slicks are hillclimb compound so very soft.
A common problem with these tyres/events is graining on the fronts, lunchtime is generally spend shaving this off the fronts, the rears seem to hold up much better. One of my thoughts on running the same both ends was to swap the tyres round between practice and timed runs.
A common problem with these tyres/events is graining on the fronts, lunchtime is generally spend shaving this off the fronts, the rears seem to hold up much better. One of my thoughts on running the same both ends was to swap the tyres round between practice and timed runs.
The 'graining' is more than likely cold tearing. I rum 185/60 13" fronts and 215/55 13" rears on 6J fronts/8J rears in my Phoenix (Avon ZZR A24 compound) when sprinting. I don't know how much weight/power you are running but I've not had much of an issue with 6J fronts with 600Kg/400BHP.
I run 17X7 Mitchalin slicks, no problem, on my Phoenix, but need extensive body mods to get them on, I have a IRS with disks front and rear, 6 pot calipers on the front and have no problem getting these up to temp, but I live and race in the tropics, so may not hold true in the UK. But I can not drive the car on road tyres, and I mean can't drive it it is impossible to get any thing like the a temp that gives any grip, I tried to use some road tyres as 'wets' to save some moneey but had to give up and buy mitchalin full wets.
Gassing Station | Kit Cars | Top of Page | What's New | My Stuff