172 cup tyre choice/pressure

[regi james]

As some of you may know i bought a 172 cup a couple of weeks back.
The only thing that is bothering me (apart from the dephaser needing repalcement) is the instability at speed which is alot worse in the wet the car has yokohama s-drive's all round, all have good tread running 33psi front and 30psi back.

was just wondering what tyres people recommend and what pressures? im guessing the s drives are not up to much.

just to add I have changed both rear shocks and the fronts seem fine.

thanks for reading James

 

[TheEvilGiraffe]

What do you mean by instability at speed ?

Have you had the geo checked ?

33/30 is about right for pressures.

 

[regi james]

What do you mean by instability at speed ?

Have you had the geo checked ?

33/30 is about right for pressures.

all i've had done is the tracking as the place I normally go to can't do camber at the moment.
the back seems fine just the front seems a bit 'wondery' at speed.
tyre wear on the front is fairly even so don't think the camber is out

 

[Spee]

Might just be tired shocks, and most likely the rears. S-drives are good Tyres, all down to opinion of course but I have them on the back of mine at the moment and they are fine, wet or dry. Does it pull to the left or right on hard acceleration? If so the most likely cause is wishbones, if it's just generally wandering and the pressures are good and the Tyres undamaged I'd be looking at tracking.

G

 

[regi james]

Might just be tired shocks, and most likely the rears. S-drives are good Tyres, all down to opinion of course but I have them on the back of mine at the moment and they are fine, wet or dry. Does it pull to the left or right on hard acceleration? If so the most likely cause is wishbones, if it's just generally wandering and the pressures are good and the Tyres undamaged I'd be looking at tracking.

G

just replaced both rear shocks. I will check the wishbones tomorrow as it does pull under hard acceleration

 

[regi james]

might take it back to the place where I got it tracked as it came with a 2 week warranty

 

[Jimbo_M]

Put some conti contact sport's on (the original tyre's renault put on the cup from new) one of the best things ive done to mine

 

[regi james]

I can get conti sport contact 3's for £71, does that sound like a decent price?

 

[daddycool]

my instability at speed (lightness on the front, wandering) was caused by unevenly worn tyres on the front. you couldn't see the uneven wear, but when i put the rears on the front the problem went away

 

[Gt rob]

what tyre size you going for? 1954516? or 2054516? or even 2054016? i got yoko paradas on mine, lots n lots of grip, i rate them highly and i sell tyres for a living so i know a thing or two

 

[daddycool]

i sell tyres for a living so i know a thing or two

mate that is so cringeworthy it's like saying "trust me, i'm a doctor" :rasp:

back to the tyres, how do the paradas wear?

 

[timps]

my instability at speed (lightness on the front, wandering) was caused by unevenly worn tyres on the front. you couldn't see the uneven wear, but when i put the rears on the front the problem went away

This ^^ swapped mine around and haven't had the problem since.

 

[Gt rob]

but you do trust your doctor, dont you?! paradas are a little soft but if you want longevity then get michelins, im not nocking contis though good enough, you do know conti sport fives are out dont you?

 

[bill]

mmmmmmmm, i find with tyres what one person likes another may hate, depends on what you want from the car and how you drive it.

 

[Gt rob]

very true, to be honest its all trial and error with your own car, all i can do is vouch for the better ones.

 

[regi james]

umm may try swapping front to rear and see what happens. oh and im running 195 45 r16 (i.e standard size for a cup)

 

[Tombola]

Not that Ive tried anything else as they have been on since I bought it approx 2 months ago, but I have Toyo Proxes all round and they seem great!

 

[smiler_]

I find the s-drives are pretty good in the wet, although I run higher pressures than recommended- 35 & 32... As said, it's trial and error with tyres.