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Tyre sizes for 993

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Porsche

Donnington
Joined
31 Dec 2002
Messages
12,731
hello

Can anyone advise what are the official front & rear tyre sizes for the 993 on both a 17" alloy wheel & 18" alloy wheel set up.......

as i'm seeing a few differing tyre sizes out there, all prob' still within the 5% size range, but just need to know what is standard.....

cheers


Migration info. Legacy thread was 15749
 
Mine are 265 x 35 x 18 on the rear and 225 x 40 x 18 on the front

hope that helps!


Migration info. Legacy thread was 15750
 
ive got the same as Toby, but i also have seen 18's advertised with 285/35 for the rear !

Migration info. Legacy thread was 15752
 
Official tyre sizes are in the owners handbook!

Migration info. Legacy thread was 15753
 
Tyre size is also determined by the body (wide or narrow).






Migration info. Legacy thread was 15754
 
C2S is 285 / 225 on 18"

Migration info. Legacy thread was 15755
 
Previous poster said:
Quote: Originally posted by WillD on 04 June 2004

C2S is 285 / 225 on 18"
Click to expand...
assuming I dont have the owners manual... :wink:

what profile would these be on ? 225/40 & 285/30 or 35 ?

and the std 17's are then on ??

regards


Migration info. Legacy thread was 15757
 
Previous poster said:
Quote: Originally posted by Josh Chambers on 04 June 2004

Tyre size is also determined by the body (wide or narrow).
Click to expand...
ok..... so the answer is both wide & narrow ?


Migration info. Legacy thread was 15758
 
Stevo - In my handbook there is no mention of 18 inch wheels as they were not an option.

Migration info. Legacy thread was 15759
 
a sticker on the car....????

possibly on petrol cap / on the inside of the door frame ?


Migration info. Legacy thread was 15760
 
18" wheels were never originally approved by porsche for narrow body variants - they are fine and i get no rub or anything - the ride is fairly harsh but hey it's a sports car!

you can have 30 or 35 profile i guess for the rears - i wouldnt go for anything over 35 though - they may rub the arches if they are any bigger!


Migration info. Legacy thread was 15761
 
My rears are 285/30 18" and front 225/40 (couldn't remeber profile before)


Migration info. Legacy thread was 15769
 
Well here goes...

from the Porsche 911 Carrera/911 Turbo manual which came with my 993 1997 targa standard body width

summer tyres

front 205/55 zr 16, rims 7j x 16 H2, rim offset 55mm

rear 245/45 zr 16, rims 9j x 16 H2, rim offset 70mm

or

front 205/50 zr 17 rims 7j x 17 H2 rim offset 55mm

rear 255/40 zr 17, rims 9j x 17 H2, rim offset 55mm

or - only for the coupe!

front 255/40 zr 18 8j x 18 H2 rim offset 52mm

rear 265/35 zr 18, 10j x 18 H2, rim offset 70mm

"The authorisation of tyre and rim sizes is granted on the basis of extensive testing. Your official Porsche dealer will gladly give you information on any authorisation status.Refitting with sizes not authorised by Porche may have a dangerous effect on the driving stability."

Note that I bought Veloce F1 wheels (18 inch) after I got the car because they looked so horny - see pictures in the Monaco folder and Porsche folder on the site below.

But guess what - I am now running the origional 17 inchers - I dont like the harsh ride and tracking across motorway lanes to follow lorry ruts! My Peugeot 307 is more fun to drive than the 911 on 18 inch tyres!


Migration info. Legacy thread was 15771
 
Ok those ratings I gave above for my C2S are the actual ratings printed on the Porsche sticker stuck inside the pasenger door so to recap for the wide bodied Carrera S (2) with 18" Turbo alloys:

front : 225/40

rear: 285/30

/images/migration/UploadedForumImages/911Tyres.JPG




Migration info. Legacy thread was 15772
 
result !!

I knew you all had the answers !



but 44 psi on the rears of a 285/30/18..... ouch ! that had got to hurt over bumps !!!! :eek:

I cant even bare to run more than 36psi on my current 225/40/18's on my TT :wink:


Migration info. Legacy thread was 15778
 
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