Wheels?

[jps]

Originally Posted by voucht

Sorry JPS, but I think you are mistaken, and I disagree with that.
The offset of a wheel is given by a manufacturer by the "ET".
ET is is the distance between the middle longitudinal plan of the wheel and the plan of the wheel's face against the car's hub.

Attachment 1585

You can have a 3'' wide wheel or a 9'' with an ET38, the offset will still be the same. Just the wheel will be wider, so wider outward AND inward

Hope I'm clear in my explanations

Ah ha!!!!! No idea why I was being so thick!!!

I was thinking that the offset was measured TO the centreline, rather than FROM the centreline. I was also making the assumption that wheels were made wider by just adding width to 'the inside' rather than widening inward and outward...

Silly me!

[Not Anumber]

I want to get hold of a spare wheel for long journeys as I dont trust the spray and pray cans.
Applying the knowledge above, do I need to look out for a Sierra (or other rwd Ford) steel wheel or could i get away with using something from a Focus or Mondeo ?

[alga]

Any 4-hole Ford wheel should do, including ones from Escorts, Focuses and early Mondeos. From 2001 Mondeo switched to 5-lug pattern.

[Not Anumber]

Thanks, no excuse for me not to pick one up and start making that spare wheel bracket when the snow clears.

Appologies for highjacking the thread.

[iDriver]

As some of my questions are answered in this reenergised thread I hope the OP doesn't mind me jumping in with a question.

I have obtained a rolling chassis for a now out of business Venom GT2 and rather than reinvent the wheel (no pun intended) I am planning on modifying it to a roadster style all be it a few inches wider and longer than the book.

This rolling chassis has obviously got heavier and different shape wishbones and backplates to the book and so wheels are not going to be a simple case of copying what others have fitted.

The hubs and brakes are Granada Scorpio units and the rolling chassis came with some 5 hole steel wheels on the front and 5 hole alloy wheels on the rear. The wishbone setup will not allow the smaller steel wheels from the front to fit on the rear but the larger rear wheels will fit on the front.

SO.... Question.. Given that the rear alloys look to be the standard Granada Scorpio units. would after market alloys that claim to fit the Granaga be guaranteed to fit and have the same internal clearances (i.e. will they clear the wishbones) or do I need to measure the original Granada alloys and start from there?

[rpjg1975]

I would think u will be safe doing that. Also I believe later Mondeo or later shape focus will also fit those hubs. Would be worth checking the specs or someone may be able to clarify the exact figures

Russ

[TSM Locost]

This site will give you details of wheel spec for you to compare, eg stud PCD pattern, centre hole and offset.


http://www.alloywheels.com/Alloy-Wheels-Fitment-Guide