R spec shelf life

[seangti]

Does running a semi slick (r compound) put you into a different division? Perhaps a consideration if you want to "compete" against street tyred cars.

I've been tempted to run the yoko's AD08r, but reluctant to if my laps times lower/grip is lower than I'm now used to which will be frustrating. It does mean I'm competing in the Performance category, due to r spec tyres and light aero. In reality I have no chance of being overly competitive with the leading drivers of either class, so might as well do it on semi's.

[sambb]

Yeah I think it will. Not sure whether the hillclimb classes are the same as at the track but for Type 1 road reg class one of things is that I can only have modifications in existing OEM positions. For instance a FARB is ok because the factory had one there. Even a RARB was ok because it piggy backs the axle and doesn't need modified mounts etc. They haven't found the intercooler water spray yet... What they did quibble over was the rear strut brace because the factory definitley doesn't have that but they let me through. You'd think tyres fits the 'OEM position' thing but I did notice that all the type 2's had r specs but I don't know if thats because they are all just generally more modified or if its a rule.
Even if I did go up a class I wouldn't mind - I just want to race my own times and keep getting quicker and learn as much as I can about setting up the car, not so much to 'beat' anyone else. I'm sure I'd be way quicker with proper R specs, not having to wait on the throttle on the uphill hairpins till the car gets straightened up. That would be nice and less frustrating but maybe less challenging?

[seangti]

I'd expect them to have a different tread wear rating between the categories.

[sambb]

actually the first event I did was a round of the hillclimb championship and one of guys there was/is? leading his type 1 under 2.5L class in his vrs Fabia wagon. He was on AD08R's, I know he did run federal 595 rsr's in the past and another guy had hankook rs3's. Going by that type 1 must be street leagl non R spec. They would n't be at the top of their classes and not be on r specs if they could be.
I think I've made up my mind. If I can come up with the cash before the October long weekend ill get 215/45/16 AD08R's, not quite as much cash 205/45/16 595 rsr's and if I stay poor I'll just run my current pair of 205/45/16 AD08R's on the front like last time and hang out the 4 months till toyo R888R's come out in 205/45/16. The V70A guy seemed to have his own doubts about those tyres so I let it go.