rasheedn

hey

i followed every1's advice and got new tires for my sti

they're great grip in the rain and dry

but the wear is crazy!!

i've completly used them up!! got in them in march and now 3 weeks ago i swapped the right tires with the left as the side were gone!

i only run 1.2 camber

and yesterday i did an autoX 10 laps in total and now there's no more side!

i need new tires!

i did drive hard on them
but there was an M3 that did about 1 hours of burnouts and 360s and his tires look the same!! he had pirrelli lemas or something!

any1 else have the same problem?

MJW

They'll only last as long as your driving style permits ! I can get 8 months plus out of mine, but its all road driving and no track stuff

Shark Man

You need to run higher than stock pressures with Goodys (soft sidewall combined with lower load ratings).

This is especially the case with aftermarket rims running lower profile tyres and when the car is driven hard, even more so for track use.

Its one of the reasons why sidewall failures on the GSD3s is found to be common when used on Imprezas. (which many tyre manufacturers blame under-inflation and overloading as the root cause for these failures).

rasheedn

i have them set at 34 all around

is that too low???

i donno i dont think i abused them too much

every1 else with other cars they have normal tires
mine are gone and we all did the same stuff!!

Arch

iTrader: (59)

These are directional tyres, how did you swap them left to right or did you take them off the rims etc.

rasheedn

yeah took them off the rims

they are on stock alloys 17s

MJW

34 isnt too low I don't think ; I have my fronts at that and the rears a bit less, and I've never had a sidewall failure yet. I must admit they do wear a bit quicker than other tyres I've used but that's mainly because they grip so well it tempts me into pushing the car a bit further than I would with other tyres.
Have you had the geometry set up done recently ? I had a set of F1s that totally burned out on the inside edge down to the geom being out.

rasheedn

yeah i got my geo setup 0 toe all around
1.2 camber front and 0 at the back

i will post pics to show how much they're gone hehe

they got used on the outside not the inside...

some ppl are saying i should put the pressure to 36 front and 34 rear or even higher??/?

ScoobyDoo69

iTrader: (17)

powerstation advised me to use 36 front and 34 rear if that helps?

prana

0 up the back? they'd be shredded! I have it at 0.5

My F1's have lasted twice as long as my re050a's, and still going.

rasheedn

thanks scoobydoo69

i will pump up the pressure then and try


prana- ur saying 0 camber on the rear is worse than 0.5???/

dont understand how this is possible/?!??!?

dynamix

iTrader: (3)

34 is way to low for track based use - i would go with 40 IMO

solwood

iTrader: (1)

I would be very wary of using standard tyres over 35PSI. I have been looking at whether our current car (Mondeo TDCI estate) needs XL tyres or standard ones and the guide on Black circles seems quite clear if running over 35psi you should use XL (Xtra Load) tyres.

Just something to be wary of!

rasheedn

interesting

but its for track use not normal road driving

i am going to try to increase pressure tom and see how it goes

thanks guys

D1CCY

I run mine at 39F/35R (cold set, fronts get to 47 hot) road and track, anything less just scrubs the outside edges off. IMO F1s are a good road tyre (my first choice for road) but the bars in the tread get torn sideways on track and I think something with wider blocks is preferable. I've just about worn out an old set of RE040s that show a lot less distress in this respect. Trying R888s next.

GrimmSpeed

i keep my F1's right around 40-41psi all the time. when i get into the 30's they wear down past the wear marker on the sidewall.


Justin
Commercial web address removed

dynamix

iTrader: (3)

Get a spare set of rims and tyres for the track - much easier than trying to drive soft sidewalled road tyres in an environment they were not designed for.

Will be cheaper in the long run too

Shark Man

Tyres usually are safe up to 50psi, and 45psi is not unheard of for track use.

Even our 325BMW says on the door jamb plate to run upto 3.3 bar....thats 47psi, on a car not much heavier than a newage Impreza for road use

A higher pressure will help prevent tyre failure from overloading, sustained high speed and hard cornering, as the contact patch is maintained across the entire width, rather than just the outer edges and roling on to the side walls.

The cause of most tyre failures are usually found to be underinflation in relation to the load/driving style.

solwood

iTrader: (1)

This is oneof the places I got my information from

Tire Tech - Load Range/Ply Rating Identification

Also don't forget BMW's now generally have ryun flat tyres with really stiff sidewalls!

Agree about under inflation though - the heat generated must be huge!

Shark Man

Interesting I think the table showing the pressures is a general guide. Of course there will always be a limit where the loading on the tyre is excessive enough to the point that increased pressure will not compensate for a tyre of insufficient load rating. So load rating is still certainly an important factor when taking into account tyre pressures.

It certainly goes hand in hand with a case example on this forum, where some owners of newage Imprezas fitted with GoodYear GSD3 tyres. Where there was a spate of sidewall and structural failures: Classic symptoms of an underinflated tyre for its loading.

It was noted that the tyre load rating is slightly lower than the OE Bridgestones, however owners would, understandably, still adhere to factory reccomended pressures. Which were originally intended for a tyre of higher load rating. In some cases, the tyres did structurely fail, yet some didn't. This in my opnion is down to how each individual's car was driven.

However, owners with GSD3 XL (extra load) tyres never reported such problems. In my opinion, even though the load rating of the standard GSD3 tyre is sufficient, the tyre would require different inflation pressures to what would be stated on the door jamb plate or owner's manual - especially when subjected heavy loading. And that would explain the failure.

As for the BMW, mine is an old E46 which was never offered with run-flats, so the tyre plate doesn't state pressures for those types of tyre. E39 and older 5 series run similar pessures too. It has always striked me as odd that some BMWs can have such high reccomended pressures when compared to similar cars. It maybe due to the car's suspension geometry causing more loading on the tyre when cornering ,or it takes into account autobahn driving...who knows. They must have a reason for it.

rasheedn

just replaced them with Bridgestone Re-070

What a difference

they are sooo much better than the goodyear!the grip is so much higher

i can throw the car into a corner and it would just turn before it used to understeer a bit and then turn... i donno the car feels a lot different i have a lot more confidence in the car now

took it to the track yesterday and they're amazing i love them

all the testing was in the dry i havent seen any rain :S

stiler83

Have a look at the Kumho ECSTA (KU15) MX tyre. The KU15 Compound is that same at Kumho developed for their V700 race tyre.
They has been receiving some very good reviews. Ray West from West Tuning is running them on his tuned MK5 R32
Mytyres have them listed...
mytyres.co.uk froogle

ShyTot

OOOOHHHH dear, I can feel a complete change of opinion coming with the first sign of rain...

rasheedn

hehehe
i am scared of that too

BUT and its a BIG BUT! i live in Jerusalem now - Israel/Palestine

so we dont get much rain here

but i'll wait for the rain and maybe enjoy some driftage and sideways action???

F1 CJE UK

iTrader: (8)

i just got 22,000 out of my f1s on a zen power 06 WRX so have no idea what you did to them put 36, 34 keeps the wear down

scoobynewbie72

iTrader: (1)

Im a BIG fan of F1`s run them on 2 of my cars, the ones on a 200bhp fwd are still going strong at about 7k miles, and they get some hammer.
I have noticed that the outside edge on the front nearside has slight feathering so may have to up the pressures a little.

rasheedn

yeah i had the pressure at 36 + 34

the bridgestone seems to hold up well

did 1 trackday till now with them and no sign of wear
well pleased witht that
they're pretty grippy too so far i'm SUPER happy with them (070)

HowieG

Re070's are king! Just been to France and drove through storms on the autoroute - no probs at all. As for proper winter weather - We'll see. Get a bit of snow in Jerusalem don't you?

Where is the track in Israel?

Howard