Tyres for RS?
- Thread starter roygarth
- Start date
Piers, all of the above you mention are fine for the job.
Toyo's are perhaps the cheapest, despite recent price hikes....
Mich cups may be better overall, but that is down to your pocket and if you think you notice or care about a second a lap somewhere on the right day?
Unless you have run these type of R tyres before, care with respect to running pressures and heat,,,if you run them under inflated for your 1000 or so road miles, you could do more damage than driving on track!
In case this develops into a poll,
Currently on Toyo....may try Dunlop Dz03 next if competitive on price.
For me if I find a set of any of these at a decent price I will buy the cheapest rather than kid myself about potential lap times.
Toyo's are perhaps the cheapest, despite recent price hikes....
Mich cups may be better overall, but that is down to your pocket and if you think you notice or care about a second a lap somewhere on the right day?
Unless you have run these type of R tyres before, care with respect to running pressures and heat,,,if you run them under inflated for your 1000 or so road miles, you could do more damage than driving on track!
In case this develops into a poll,
Currently on Toyo....may try Dunlop Dz03 next if competitive on price.
For me if I find a set of any of these at a decent price I will buy the cheapest rather than kid myself about potential lap times.
I also have some Dz02 which I use on occasion, having gone through 3 sets now I am more than happy with them and prefer the wear characteristics of the Dunlops over Toyo myself.
I have yet to try these Dz03 which replaced the 02, having spoken to users on trackdays and read internet reviews, the comments have been nothing but favourable.
One disadvantage to the Dunlop is that there appear to be less outlets supplying them, so toyos, may be cheaper or at least easier to get hold of.
I have yet to try these Dz03 which replaced the 02, having spoken to users on trackdays and read internet reviews, the comments have been nothing but favourable.
One disadvantage to the Dunlop is that there appear to be less outlets supplying them, so toyos, may be cheaper or at least easier to get hold of.
paul howells
New member
Khumo are great,good for road noise and good wet weather grip.Hard rear compound and a med front.
Dunlops are noisy on long runs,toyos even worse.
Dunlops are noisy on long runs,toyos even worse.
std tyre sizes
F-225 x 40 x18
R-265 x 35 x 18
Have a look though, you may have 235 on front for dunlop,,,on some tyres you can go to 285 on the rear,,,depends on suspension set up, clearance and stiffness of sidewall..
I have 225/265 combo of toyos 888 and they have been fine.
PaulH can probably tell you about any sizing anomalies on the Khumos.
F-225 x 40 x18
R-265 x 35 x 18
Have a look though, you may have 235 on front for dunlop,,,on some tyres you can go to 285 on the rear,,,depends on suspension set up, clearance and stiffness of sidewall..
I have 225/265 combo of toyos 888 and they have been fine.
PaulH can probably tell you about any sizing anomalies on the Khumos.
Richard Dawson
New member
I ran 225 and 285 Toyo 888 on my rs with NBA e28 rims and c 2deg negative front and rear with no issues save occasional contact with arch lip at rear on really fast bumpy corners
993paul
New member
[:-] Just looking at my P Zeros on the rear (P Zeros on the fronts are OK) on original 10 - 65 Speedline wheels. I currently have 285/30/18 ZR N4 which appear to be slightly oversized - with occasional body contact when road undulation hits a certain frequency (not so much bumps as fast undulations). Slightly annoying on the IoM Mountain run[
].
Paul H, can you still get the original P Zeros N4s (265/30 or 35s ??) if so from where? How important is N4 to "originality" do you think? I am reluctant to mix brands front and rear.
].Paul H, can you still get the original P Zeros N4s (265/30 or 35s ??) if so from where? How important is N4 to "originality" do you think? I am reluctant to mix brands front and rear.
paul howells
New member
Khumo V70 is the tyre i was ref to.
I would not have a clue about what tyres are still available as in pirrelli,the khumo would be great on the IOM.
Never mix tyres,N rating unimportant.
235 works fine on the fronts with a 285 rear,even ok with the dunlops 235 front and 265 rear.
I would not have a clue about what tyres are still available as in pirrelli,the khumo would be great on the IOM.
Never mix tyres,N rating unimportant.
235 works fine on the fronts with a 285 rear,even ok with the dunlops 235 front and 265 rear.
Richard Dawson
New member
Without going over old ground I have never bothered with the N rating stuff, but do always have the same tyre front and rear .
Varying front and rear sizes is something I suggest you think about in conjunction with the overall balance of your car and what you like.
I'd also say change 1 thing at once and then test so you feel what effect the change has. i.e. geo/bars/tyre pressure.
The other thing to look at if say you find lots of understeer with say 225s is consider if you might look at how you turn in for instance.
Certainly I find on old 911s a sharper turn in rather than perhaps lazier/smoother helps kill initital understeer?
Varying front and rear sizes is something I suggest you think about in conjunction with the overall balance of your car and what you like.
I'd also say change 1 thing at once and then test so you feel what effect the change has. i.e. geo/bars/tyre pressure.
The other thing to look at if say you find lots of understeer with say 225s is consider if you might look at how you turn in for instance.
Certainly I find on old 911s a sharper turn in rather than perhaps lazier/smoother helps kill initital understeer?
Steve Rance
Non member
I agree with paul. The Khumo is a good tyre. May run them or the Toyo as the road tyre on my 993 Race car. With regards to sizes, I would not recommend fitting a wider front to help turn in. The suspension on the 993 rs is well resolved so If you are experiencing turn in problems its a geo issue rather than tyre. As with all 911's the front wheels need to be loaded as the car turns to prevent understeer so if you are on the power before the apex, you will compound the problem. If anything I find the turn in on my 993 slightly better than the 996 or 997 cup. You guys dont know how lucky you are! the heavier and more powerful GT3s eat the toyo after a few laps. I drove Tim Chandler's 996 RS at Snett on a MSA test day. It was on Toyo's and after 3 laps they were absolutely shot. The only real option on a GT3 is a cup and they are expensive and I would expect to get through a set of rears in 3 days. Ouch! The lighter and less powerful 993 RS is more suited to the toyo or khumo which are a far cheaper option.
I am interested to see how long a set lasts. Will report back
I am interested to see how long a set lasts. Will report back
paul howells
New member
Chris looks are deceiving the 993 rear arches are the same width as the old 911 turbo,so i doubt they will clear on a 964,but you can try!
The 235 and 265 dunlops worked very well hillclibing and sprinting,some fitted 245 on the front with a 285 rear in other makes, which never worked that well.Important to not overtyre the front.
I have used all the tyres,the khumo came out tops for hillclimbing and sprinting ,wet and dry,but this was the med compound all round.As regarding the question/post put the hard compound on the rear and they will last a fair time and not overheat to quickly.Big difference between what's good for driving to the ring and around the ring,to going round and round brands indy for example.
The 235 and 265 dunlops worked very well hillclibing and sprinting,some fitted 245 on the front with a 285 rear in other makes, which never worked that well.Important to not overtyre the front.
I have used all the tyres,the khumo came out tops for hillclimbing and sprinting ,wet and dry,but this was the med compound all round.As regarding the question/post put the hard compound on the rear and they will last a fair time and not overheat to quickly.Big difference between what's good for driving to the ring and around the ring,to going round and round brands indy for example.
paul howells
New member
For sprints we always used the med compound khumo all round.Have not used the yokos for a few years.
Thanks Guys, reckon I'll try the Khumo V70.
Paul H, to be clear I'll go for:
F- 225 x 40 'medium' compound
R- 265 x 35 'hard' compound
Are you suggesting hard rear as they will last longer...if not worried about quicker wear should I go for medium rear for better grip, or is it a handling/balance issue?
Thanks
Piers
Paul H, to be clear I'll go for:
F- 225 x 40 'medium' compound
R- 265 x 35 'hard' compound
Are you suggesting hard rear as they will last longer...if not worried about quicker wear should I go for medium rear for better grip, or is it a handling/balance issue?
Thanks
Piers
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