-Richard-

Hi all,

Could you help me:

I have a classic with the 17" bugeye wrx type alloys the twin 5 spokes.

has 205/45/17 tyres

What air pressure do i inflate to as i have checked my manual and it tells me for the standard 15" classic alloys



Cheers

Rich

SwissTony

iTrader: (19)

The same
HTH

joz8968

iTrader: (13)

From memory, 33psi front; 32psi rear are OEM pressures for the OEM tyre sizes of 205/55 R15 and 205/50 R16.

I suppose you could argue that with the lower 45 profile, rather like a bike tyre needing lots of pressure, you could it a bit to, say, 35 fr; 34 rr, for example.

What I'd do though, is start off with the 33/32... then experiment either side of those pressures to get the tyres' "feel" just how you like it...

Rich D

iTrader: (12)

according to the sticker inside the door of my 99 UK Classic, it's 32psi front & 28psi rear for the 205/50/16 tyres

I also run the newage WRX alloys with 215/40/17 tyres and I'm running the same tyre pressures as for the standard ones, which seems fine

joz8968

iTrader: (13)

That's the one! - memory block.

Rich D

iTrader: (12)

be interesting to see what the pressures are meant to be for a bug or blob WRX with those wheels in comparison

the Classic is a much lighter car though, so pressures should be lower to compensate

gallois

as an interesting point, like many others, i get a noisy transmission sound on overrun in 2nd and mildly in 3rd, i saw a big post on nasioc about this, (mainly newage wrx's) and one suggestion was a 4psi differential between the front and rear tyres, i have been trying mine with 35psi front, 31psi rear, and i kid you not, the noise has all but gone!. i have yet to find out what this pressure is like under extreme handling though.

gallois

(pressure previously was 32psi all round)

Rich D

iTrader: (12)

so you're saying that with the same tyre pressures all round you had some transmission whine, but with the 35psi front and 31psi rear it's now gone

interesting

-Richard-

Cheers guys.

Some one with a bug eye told me 32 front 30 rear is in there manual so thats what ill go with...


Cheers

SwissTony

iTrader: (19)

Very interesting. I tried the same thing a few years back. Couldnt work out the constant whine...























Then got divorced and suddenly it just went

joz8968

iTrader: (13)

*laugh*

Rich D

iTrader: (12)

gallois

not gone completely, but 80% quieter, not a whine, (i don't suffer with a whine when accelerating), but on overrun / deceleration, esp in 2nd when warm, a kind of noisy bearing sound, like a noisy clutch release bearing. it's been there for 2-3 years, but tried the new pressures and it's almost gone. I don't completely understand why, but it apparently is something to do with equalising, or altering the ratios very slightly between the front and rear diffs. if i can find the link i'll post it.

edit here's the link, although they seem to using a 3psi difference. http://forums.nasioc.com/forums/arch.../t-103494.html

happydude303

iTrader: (1)

i run toyo t1r 215 40 17 33 in the front 31 in the rea seems fine i guess to so degree its what you like mines a classic