World Time Attack Challenge 2011

[Marlin]

Yeah I was told the same re the mould.... such a shame as we had high hopes for that tyre and it's desperately needed!

Is the diameter or rolling circumference 80mm difference?

[handbrake]

diameter

diameter of stock R35 tyres is about 700-710mm from memory. the 295/30-18 is about 630 or smiliar I think

[Marlin]

Gee they're tall huh. I have a set of BFG 35" Muddies here, may suit.

[handbrake]

might enter the Pootrol and turn up the boost?

[zebra]

might enter the Pootrol and turn up the boost?

Wouldnt be the 1st time lol

or was that a Land Cruiser?

[Marlin]

There's light yet Mark, I've heard there is a good chance that some Yoki 295's will make it in July...... running it damn close though. And they'll only be in Soft compound.

[handbrake]

yes there will be in 30 profile though, better than nothing

[hrd-hr30]

biggest semis other than the bridgestones are 295/30-18 (hankook vetnis Z221 and A050's), that diameter is about 80mm less than the standard wheel size on my car.

I wish there were some bigger smei slick options so we could match it with the EVO's

Kumho list 305/30ZR18 & 335/30ZR18 V70A semi slicks. Kumhos normally come in soft medium or hard compound too. Hornibrook motorsport is the QLD distributor

[handbrake]

gotta say I had overlooked the kumho. how do they perform?

would a suboptimal sized A050 perform better than a better sized Khumo?

might need to experiment more. so many tyres so little time.

[nismoman]

The Kumho's are an excellent tyre. The V70A in particular is awesome. I beat plenty of yoki and dunlop shod cars.

Definitely worth considering given they come in the correct sizes and perform well.

[Marlin]

They're a good tyre, not great imo.

They're a few years behind the tech of Dunlop and Yoki.

Having said that, I have only used them in smaller sizes of 235 and 265.

We were fortunate to back to back the V70A's against the Dunlop O3G's at Mt Buller once, the Dunlops were nearly exactly a second a klm faster.

In the rain though, I think the Kuhmo is wonderful, I just think they struggle a little on heavy cars.

As I allude to though, they could have completely different behaviour in the enormous sizes.

[hrd-hr30]

pretty sure the fastest Aussie car at last year's WTAC was on Kumho V70A - Luff in the Lotus.

[Marlin]

Yeah, thats what I mean, they suit very light cars........

[Snowman]

Same as the Toyo's.

I still find it hard to believe 4 years on from the R35 being on the market that there are still no 19 or 20" R comps made (espec given porka's, lambo's, fez etc all run bigger wheels too).

[Beer Baron]

yeah agree with the other guys about the cum-ho's being the same as toyo in that they work really well on lighter cars without the massive power but on the big brutes like GTRs with 1400+kg and 400kw+ they suffer. they might be great on the lotus but those things weigh bugger all like 800kg or so from memory? and have maybe 300kw?

the only real way to find out is try a set and see. it's an expensive lesson but given the effort in your build probably one worth learning for yourself.

I remember driving the 35 on track at OP and being shocked how much slower it was on R888s compared to the factory tyres (either the dunlops or bridgestonss). it was much more oversteery, and much slower over all and had much more roll courtesy of the sidewalls not coping with the weight.

[Beer Baron]

Same as the Toyo's.

I still find it hard to believe 4 years on from the R35 being on the market that there are still no 19 or 20" R comps made (espec given porka's, lambo's, fez etc all run bigger wheels too).

yeah it would be nice to have readily available 03Gs or RE55s or A050s in 20 inch sizes for R35s and lambos etc. plenty of guys getting serious with these cars that are being knobled by tyre availability.

[Deano45]

pretty sure the fastest Aussie car at last year's WTAC was on Kumho V70A - Luff in the Lotus.

That's correct. Luffy would of preferred to use some dunlops or yokohamas though.

[FineLine]

Tire rack doesn't list A050's?! Only A048's

Edit - Or O3G's......

Anyone shed any light on that?

Edit - I've emailed them a request for info on those.

I rang them and couldnt get any sense out of them regards the o3g's Ben. I hope you have more luck.

[R31Nismoid]

might enter the Pootrol and turn up the boost?

Make sure you install coilovers

[Duncan]

yeah there was a tubro landcruiser at the first world sprint championship challenge attack at oran park. got roll?