Wheel specs
Wheel specs
Author
Discussion

StardustV8

Original Poster:

128 posts

242 months

Thursday 6th November 2008
quotequote all
Hello folks

No doubt there is a post somewhere on here with this information and I am not using the provided search option correctly

BUT

What is the correct PCD for the std Chim/Griff hub?

If fitting 17" wheels, what is the recomended width and offset Fr/Rr
If fitting 16" wheels, what is the recomended width and offset Fr/Rr

I have the eibach springs on my jallopy, not sure what the ride height is but looks lower than standard, shal measure when I have the car back and find a suitable flat!

Tramlining?

steve-V8s

2,924 posts

279 months

Thursday 6th November 2008
quotequote all
You should find the offset of your existing wheels stamped on them. Will probably be marked something like 15x7et25 being 15 inch by 7 inch rim, offset 25mm for PCD simply measue across the studs.

Uncle Fester

3,114 posts

239 months

Thursday 6th November 2008
quotequote all
PCD is 4 x 108.

The center hole either has to be the right diameter to the hub, or a fitting ring will be required. This is different to a spacer that corrects offset.

If you're buying quality wheel's they will offer machining to fit at a small premium. IIRC £10 per wheel.

Also consider brake clearances, not just now but for future upgrading.

Then consider the weight of the wheel's. Reduced unsprung weight improves handling. The effect of reduced weight always improves performance, but losing 1kg off the wheel's has more effect than losing an equal weight from elsewhere on the car. I have seen reports that 1kg off the wheel's is worth 40kg off the car. (Anyone confirm details?)

That implies not buying wider wheel's than needed to properly fit your choice of tyres. In other words, don't buy 7.5J if 7J would do and you have no intention of fitting wider tyres that need the extra width.

StardustV8

Original Poster:

128 posts

242 months

Thursday 6th November 2008
quotequote all
Hi

I have fitted many wheels in the past and understand the importance of evrything mentioned.

I just wandered if anyone had experiance of what is best to run when fitting larger alloys, ie what size for 17", i can easily work the offset back.

Thanks for the PCD tho...............looks like ford

bigdods

7,175 posts

258 months

Thursday 6th November 2008
quotequote all
Front PCD108 ET25
Rear PCD108 ET33


JR

14,332 posts

289 months

Friday 7th November 2008
quotequote all
StardustV8 said:
Thanks for the PCD tho...............looks like ford
Yes, studs are a 3" Ford square.
Rear rim ideally 8".

spend

12,581 posts

282 months

Friday 7th November 2008
quotequote all
bigdods said:
Front PCD108 ET25
Rear PCD108 ET33
Isn't that the std for 7" & 7.5" widths OTTOMH?