Discussion
Spacers useds when wheels are wanted to be offset further out from the hub. Its nothing to do with wheel size ie 16.17.18 inch etc but regards the offset & how wide is wheel in question.
Any good Porsche wheel supplier i.e Jasmine etc, will know what spacers will be needed for what offset wheel & what tyre sizes to run so as to avoid rubbing on the arches& can sell you the correcr spacers. To really fill the arches you may need a bodyshop to roll the lip of the arch in an RS style.
ps 18inch on a 3.2 will give a really horrible ride.
>> Edited by iguana on Wednesday 15th October 08:45
Any good Porsche wheel supplier i.e Jasmine etc, will know what spacers will be needed for what offset wheel & what tyre sizes to run so as to avoid rubbing on the arches& can sell you the correcr spacers. To really fill the arches you may need a bodyshop to roll the lip of the arch in an RS style.
ps 18inch on a 3.2 will give a really horrible ride.
>> Edited by iguana on Wednesday 15th October 08:45
You have to consider the offset of individual wheels.
They don't make wheels just by size i.e 18" or 19".
The offset is effectively the ammout of the tyre that sits in or outside of the disc (laymans terms).
You will find some 19" fit fine others don't,,as Iguana points out it is fairly common to roll the outer edge lip of the wing in to prevent rubbing.This is a routine procedure for those with training,but the rolling tools in the hands of someone less competent could cause a lot of damage on a car of this value.
They don't make wheels just by size i.e 18" or 19".
The offset is effectively the ammout of the tyre that sits in or outside of the disc (laymans terms).
You will find some 19" fit fine others don't,,as Iguana points out it is fairly common to roll the outer edge lip of the wing in to prevent rubbing.This is a routine procedure for those with training,but the rolling tools in the hands of someone less competent could cause a lot of damage on a car of this value.
The offset of a wheel (ET) is the distance from the centreline of the width to the mounting face of the wheel, measured in mm.
Typically a 7" Fuchs wheel for an early 911 will have something like a 23mm offset, therefore placing the outer rim 3 1/2inches - 23mm from the face of the hub.
The later "ABS fitment" Porsche wheels have something like a 52-55mm offset. So, if you have a 7x17 ET55 say, the mounting face will be 32mm closer to the outside of the wheel than a 7 x 16 Fuchs, therefore to correct the offset difference you will have to fill the gap with a 32mm spacer.
Small spacers are made as a flat plate that slides over longer studs, but from 15mm thich upwards they are a contoured machining that locates the centre of the wheel with a spigot, have holes & steel wheelnuts for fixing to the hub and have an additional set of studs for bolting on the wheel.
Typically a 7" Fuchs wheel for an early 911 will have something like a 23mm offset, therefore placing the outer rim 3 1/2inches - 23mm from the face of the hub.
The later "ABS fitment" Porsche wheels have something like a 52-55mm offset. So, if you have a 7x17 ET55 say, the mounting face will be 32mm closer to the outside of the wheel than a 7 x 16 Fuchs, therefore to correct the offset difference you will have to fill the gap with a 32mm spacer.
Small spacers are made as a flat plate that slides over longer studs, but from 15mm thich upwards they are a contoured machining that locates the centre of the wheel with a spigot, have holes & steel wheelnuts for fixing to the hub and have an additional set of studs for bolting on the wheel.
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