Andy Porter

Hi,
I have just put a new set of the above on,
I was advised that 33 PSI rear, 31 front, is correct.
I had these tyres before, but I ran them higher, ie about 38psi each.
The new tyres are not gripping well, they have done 500 miles so must be scrubbed in.
They feel vaugue round bends, like there moving about to much. No confidence.

What pressures do you guys run these tyres on ?
Thanks in advance,
Andyp

Octane Man

Copied from SIDC/FAQ

Another popular topic for debate often revolves around tyre pressures. Drivers' experiences show that the Impreza is sensitive to minor differences in tyre pressures (you can easily feel a drop of 2psi), so it's worth checking them regularly. For the '96 model turbo, the recommended tyre pressures for the 205/55 VR 15 tyres are 33psi front, 32psi rear. Some dealers have suggested that these pressures are adhered to when fitting larger 16 and 17 inch wheels, however Prodrive suggest 33psi front / 30psi rear (up to 32psi on the rear for sustained high speed or heavy load) for all wheel sizes, while MRT suggested 35psi on both front and rear results in better grip and handling, at the slight expense of ride quality. Prodrive even suggest leaving the tyres at the pressures for trackday use, although increasing the pressure will stiffen the sidewalls somewhat. An owner in Milton Keynes (probably the highest roundabout density in the world!) reports that to combat excessive front tyre wear, Continental tyre engineers recommended that the MK police increase front pressures by 10-15%. The owner reports that while standard pressures wear the fronts in 8,000 miles, running at 36psi provides significant reduction in wear.

O.M.

Alex Creasey

Andy,
I run my 215/40/17 F1's 33psi on the front and 31psi on the rear and I'm happy with the way my car feels. I have to admit that it did seem to take an age before they felt 'scrubbed in' (more than 500 miles!). I've also been told that F1's are made in two places, Germany + South America somewhere, and that the german made tyres are always a higher quality compound than ths S. American ones. Hope this may be of use.
Cheers,
Alex.

Andy Porter

Thanks for the advice guys, nice pic OM,
Andyp

Ga22ar

Hi..

I run 34 front and 30 rear and it's fine.. Must admit it was very vague for the firt 1000mls or so and then settled down..

I had SO2's originally which were much better, I'll being going back to them when these F1's wear out..

Cheerz

matt d

I used 36 front 30 rear with the Eagle F1s. They were very grippy, so either yours aren't run in (it can take a while) or there's a problem with them.