some tyre advice
Discussion
Hello, Just wondering if any of you other scooby owners use them on track and if so what tyres do you use, I have just worn through another set and am wondering what to buy next, any reccomendations would be good but preferbly something longer lasting would be good and not Goodyear eagle F1 I hated those, have just been using Dunlop Sport 9000 which were good but the scooby munches away at the inner tread and they are seriously dead. (apparently its not just mine that does that) a useable road tyre would be a preferance but if any of you have experince with road legal track tyres let me know how well they work and how well they last as they are an option
thanks in advance hopefully
thanks in advance hopefully
It can be more economical in the long run to have a street set of wheels/rubber and a track set.
Alternatively, you could flip each tire on it's rim if the wear is obviously on the inner tread blocks with relatively less wear on the outer blocks (doubtful on an understeery car).
You should be running tire pressures in the low-mid fourties on track to minimise sidewall roll and subsequent tread block shredding/ carcass overheating.
m
>> Edited by weed on Friday 8th October 18:36
Alternatively, you could flip each tire on it's rim if the wear is obviously on the inner tread blocks with relatively less wear on the outer blocks (doubtful on an understeery car).
You should be running tire pressures in the low-mid fourties on track to minimise sidewall roll and subsequent tread block shredding/ carcass overheating.
m
>> Edited by weed on Friday 8th October 18:36
thats what I have been thinking but i never seen anyone with a heavy car running them so dont know what the wear rate is like, i dont want to be spending £700+on a set that although giving me more grip will also wear out just as quick so any reccomendations there? on which make eg dunlop/ Yoko avon etc
jleroux said:
MK,
When someone complains about the cost of replacing tyres, the absolute last thing you should be suggesting is that they get sticky tyres, IMO.
J5
Not necessarily.
A dedicated set of competition tyres usually comes with 5 to7/32" of tread. So the blocks are short and don't squirm under high lateral or longitudinal forces. It is the squirm of the treadblocks that leads to the overheating of the tire and subsquent disintergration of the treadblock/tyre. The construction of these tires despite lack of tread depth and softer compound means they'll live longer than a full treaded street tyre under track conditions.
You can prolong the life of a strict road tire that is used on track by shaving the tread blocks down to 6/32" or less. It will also be faster under optimum conditions.
If a full treaded set of street tyres are used for a couple of track days, this use could render them close to useless for winter snow anyway, so that is a false economy in itself.
m
I would vote for track wheels and tyres. The Michelin Pilot Sport Cups I run last longer on track than road tyres as they don't overheat and chunk away.
Driven hard no tyre is going to last long on track anyway, especially with a heavy ECU assisted 4WD, which is just stating the obvious really.
FWIW in my experience all Pirelli and Yoko tyres are soft and don't last long road or track. The Bridgestone SO2s I run as road or wet track tyres wear well when used as such but ona dry track rapidly overheat and break up. Michelin tyres always seem to last well and for some reason even the road versions don't appear to overheat to badly. The MPSCs seem to heat cycle to stone before they cord. It may be worth searching out some part worn tyres and finding what suits - I'd start with Michelins.
50psi is outside the design paramaters for the tyre and covering up inherent deficiences in the tyre by over inflating doesn't seem a good idea to me.
Driven hard no tyre is going to last long on track anyway, especially with a heavy ECU assisted 4WD, which is just stating the obvious really.
FWIW in my experience all Pirelli and Yoko tyres are soft and don't last long road or track. The Bridgestone SO2s I run as road or wet track tyres wear well when used as such but ona dry track rapidly overheat and break up. Michelin tyres always seem to last well and for some reason even the road versions don't appear to overheat to badly. The MPSCs seem to heat cycle to stone before they cord. It may be worth searching out some part worn tyres and finding what suits - I'd start with Michelins.
50psi is outside the design paramaters for the tyre and covering up inherent deficiences in the tyre by over inflating doesn't seem a good idea to me.
sorry weed, you missed my point. putting sticky tyres on a car will move the wear & tear (and subsequent costs) elsewhere on the car, that's all.
even on a relatively light car like my elise - the financial impact on the car from the sticky tyres is vastly more than the cost of a few sets of road tyres.
again, YMMV etc etc. just offering my humble advice.
even on a relatively light car like my elise - the financial impact on the car from the sticky tyres is vastly more than the cost of a few sets of road tyres.
again, YMMV etc etc. just offering my humble advice.
Rather than throwing money at the tyres, why not try to get the problem sorted that's wearing your tyres in the first place .. sounds like you're disguising the symptom rather than adressing the cause...?
.. it's going to either be bad driving technique (understeer-biased 4wd cars like scoobies will quickly destroy front tyres if you're constantly battling on the limit of understeer) or some inherent flaw in your chassis, so there's two very good areas to be spending money for a start
.. it's going to either be bad driving technique (understeer-biased 4wd cars like scoobies will quickly destroy front tyres if you're constantly battling on the limit of understeer) or some inherent flaw in your chassis, so there's two very good areas to be spending money for a start
well I'm having the bumpsteer mod done by Powerstation done very soon which should reduce the understeer, I was not saying I wanted the stickiest tyres really just the best wearing ones, and like jleroux said it just moves costs elsewhere with stickier tyres, and im running standard suspension at the moment too (this is on a 70,000mile scooby so its due for replacement) (will be sorted in time) so any more reccomendations on tyre make would be helpful and maybe a good running psi? thanks guys
jleroux said:
sorry weed, you missed my point. putting sticky tyres on a car will move the wear & tear (and subsequent costs) elsewhere on the car, that's all.
even on a relatively light car like my elise - the financial impact on the car from the sticky tyres is vastly more than the cost of a few sets of road tyres.
again, YMMV etc etc. just offering my humble advice.
I agree.
If the car is going to see track time and street duty, then service intervals need to be shortened.
The increased leverage of stickier rubber will put more stress on other suspension and chassis componentry.
m
RB Will said:
well I'm having the bumpsteer mod done by Powerstation done very soon which should reduce the understeer, I was not saying I wanted the stickiest tyres really just the best wearing ones, and like jleroux said it just moves costs elsewhere with stickier tyres, and im running standard suspension at the moment too (this is on a 70,000mile scooby so its due for replacement) (will be sorted in time) so any more reccomendations on tyre make would be helpful and maybe a good running psi? thanks guys
Yeah I remember seeing something about Powerstation's mods .. let me know whow they fair will you? .. I knew Rich Benton at PS a few years ago when we used to do the TVR rolling road shoot outs there, not spoken to him for a couple of years tho now .. send my best wishes to him .. he's a good bloke
joo
RB Will said:
damn, they dont make those tyres in the right size, I'm looking preferable for 215/40/17 (can not go smaller than 17" cos using 330mm brakes and going for 45profile I may start scrubbing arches) and not starting on the slope I have been on it for a couple of years now
They soon will though, ring & ask they are making the moulds now. Also several other companies make F2 spec tyres, (road legal slicks for Rallying)
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