Discussion
tony.t said:
tony.t said:
18ins wheels on a 964
Not my fault I didnt put them on
My reply was somewhat tongue-in-cheek, however you may care to know that Porsche wouldn't sanction the fitment of 18ins wheels to standard 964s as there was a risk of stub axel, or whatever, failure and sent out warnings to dealers/service with regard to such.
Nice colour.
Does anyone think that it may be worth having the stub axle thingy (etc?) checked over just in case there are any stress-related problems waiting to happen? If it were me, I'd have it checked.
pesty said:
Guys any info on the wheel size issue greatly appreciated.
IS it an issue that needs rectifying?
will I be unlucky if it causes a stub axel failure?
And if I need to go back to 17inch what size wheels and offset is best for fast road handling And the odd trip to brunters maybe ?
The info re: Porsches warnings over 18ins wheels is true; The standard 964 has different hubs/suspension etc from the turbo and RSs for which 18ins wheels were authorised by the factory.
Having said that I have never heard of an actual failure of anything caused by !8ins wheels. There are TUV approved 18ins wheels produced by Cargraphic, Techart and RUF for the 964 and I pressume thet know the issues.
Lots of 964 owners run with 18ins wheels - myself included. Mine's a track car running R tyres and so if there is a problem I'll find it out.
Part of the problem with larger wheels is the weight of them. Design 90 16ins wheel/tyre combination is really light and the suspension etc was designed with that in mind. A lot of 18ins wheels are MUCH heavier ( and this is ignoring the weight distribution issues)and this does the unsrung weight no favours at all.. Take one of your wheels off and weigh it and compare it to a design 90.
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