At 70% on road use, that leave's 30% track use which is quite a lot. I'd be putting 888's on.
adrian
ps. your wheels are 5" too big but thats another can of worms altogether!
If I were to change my t1-r for something a little bit more sticky what choices have I got? size is 225/45/17
Black circles have a good offer on bridgestone re050a at the minute at £90 each.
I'm not really after r888's as it'll be 70% road driving and they're too expensive. The car should weigh about 650ish kg and
300bhp.
So apart from the t1r's/re050a what other choices would be good?
Uniroyal rainsports 2 are excellent. Might be slightly soft for a 1.5 ton car on track but on anything less than a ton I bet they would be
excellent.
On the road they perform brilliantly, common sense limits grip.
Darren
How about the new R1r Toyo?
At 70% on road use, that leave's 30% track use which is quite a lot. I'd be putting 888's on.
adrian
ps. your wheels are 5" too big but thats another can of worms altogether!
i have t1rs on my indy and they are great wet or dry
then i have tirs on the front of my new astra and re50a's on the back and the r's are superior tyre
quote:I've got to clear my brakes too!
Originally posted by adithorp
How about the new R1r Toyo?
At 70% on road use, that leave's 30% track use which is quite a lot. I'd be putting 888's on.
adrian
ps. your wheels are 5" too big but thats another can of worms altogether!
quote:
Originally posted by franky
I've got to clear my brakes too!
its only a can of worms if your 17" wheels are heavy, not an issue if they're lighter than most 14"
Camskill have a good deal on these trackday/road tyres in your size.
http://www.camskill.co.uk/products.php?plid=m12b1052s665p0
quote:
Originally posted by zilspeed
quote:
Originally posted by franky
I've got to clear my brakes too!
its only a can of worms if your 17" wheels are heavy, not an issue if they're lighter than most 14"
Not entirely.
Sidewall flex is hugely significant.
On what is a pretty light car with relatively stiff suspension, sidewall flex is not a bad thing and is a major factor in allowing the car to work.
I give you these examples of lap times of the capabilities of a Pinto powered mid engined car racing car on 13" slicks versus an R888 shod Cosworth powered car.
I know they're not the same thing at all, but I'm attempting to show the capabilities of the humble 13" tyre in a low powered car - 140bhp or so - versus a turbocharged car of 300bhp or so with bigger tyres.
Anyway - 1:42.662 vs 1:33.129
The good time is the Pinto car on 13" wheels.
I know my logic is utterly flawed, but I stand by it anyway. We don't need more than a 13" wheel.
It's where most people eventually end up
after messing about with bigger stuff.
P.S. your wheels are 4" too big, not 5".
How big are your brakes ?
286mm discs, calipers obviously add a larger diameter, the braking set up has proven to work very very well so at the minute i'm just thinking
of getting a good base set-up so when its on the road I can just use the car for a year or so before looking at further mods, well apart from getting
it properly set up(geo/corner weights etc).
The R1R's seem like a very good compromise, i'll have to look at how much I can get for my current t1r's if I did look at changing.
286 are not particularly big so certainly 15" would fit over them and possibly 14".
quote:
Originally posted by jeffw
286 are not particularly big so certainly 15" would fit over them and possibly 14".
There is a few options out there very similar to the R1R to look at
Bridgestone RE-11
Yoko AD08
Dunlop Z1 Star Spec
and Kumho Ku36
There is a couple of good reviews around for this set of tyres too
http://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=118
got the r1r's on mine for road use with the occasional track day and impressed so far.
I really don't rate the T1R, RE040, RE050
However the RE070 is a different tyre altogether, not so hot now the winter months are coming, but a great dry tyre!!
I know you're some what limited by brakes but the price difference between 13" and 17" tires is significant. Just a quick look on
Camskill was coming in around £40+ per tire for the sticky stuff! So maybe a second set of wheels for the track tires which also means you'll get
lots more track time from them.
That's how I used my car with two sets of 14" wheels.
[Edited on 6-11-10 by bimbleuk]
quote:
Originally posted by bimbleuk
I know you're some what limited by brakes but the price difference between 13" and 17" tires is significant. Just a quick look on Camskill was coming in around £40+ per tire for the sticky stuff! So maybe a second set of wheels for the track tires which also means you'll get lots more track time from them.
That's how I used my car with two sets of 14" wheels.
[Edited on 6-11-10 by bimbleuk]
quote:
Originally posted by beaver34what 14" tyres did you run?
quote:
Originally posted by bimbleuk
quote:
Originally posted by beaver34what 14" tyres did you run?
Hi,
Original alloys for road use were some custom made Superlites made in Gloucester with Falken 512 then 912 tyres. The second set with R888 or AO48 stickies on were some old style Revolution alloys with black spokes.
[Edited on 6-11-10 by bimbleuk]