Specific Information Needed Re Wheels Offsets (O.Z. Chronos)

[squareflops]

Hi all,

I have a set of the above wheels in the garage from my Celica days. They're relatively narrow @ 6.5jX17" 45ET. I test fitted them earlier and they (just) foul the front caliper.



I'm still looking to get these fitted to my newly acquired blob eye WRX and now need to query a few things. They foul by only a few mm it seems so my first thought was to get universal spacers but then remembered any spacer that's not hub-centric will weaken the wheel/hub interface.

I've now been looking at hub centric spacers but can't fathom (feeble mind) what width they need to be to bring me back to OEM spec or ideally a few mm wider as the standard WRX wheels are lost in the arches somewhat. From what I can determine the standard wheel ET is 48.

I've used the online width calculator and even that doesn't make any sense to me

Cheers all.

p.s I'll be replacing the tyres as the Federals are of an unknown age, Avon ZZ5s will be purchased @ 205 45 17 which equals (roughly) a -1.2% radius difference

[squareflops]

to boil this down then

standard WRX wheels:
7jX17 ET48

OZ Chronos:
6.5jX17 ET45

Looking at 2 sets of these

http://www.tegiwaimports.com/tegiwa-hubcentric-whe...

in 15mm form.

Someone must be better at this than me

[P I Staker]

A 15mm spacer will make your ET45 wheel effectively ET30.

[squareflops]

but what does that mean



So, .. standard wheels are ET48, does that mean the Chronos will sit out 18mm more than OEM?

[mizx]

squareflops said:

but what does that mean



So, .. standard wheels are ET48, does that mean the Chronos will sit out 18mm more than OEM?

ET30 will be 12mm further out.

You want 3mm spacers for the same on the outside.

[P I Staker]

squareflops said:

but what does that mean



So, .. standard wheels are ET48, does that mean the Chronos will sit out 18mm more than OEM?

0 offset means the mounting face is in the middle of the wheel. A positive offset means the mounting face is towards the outside of the wheel, so it will sit further in towards the center of the car. So the higher the number the further in your wheels will sit.

[squareflops]

Right OK cheers guys this is starting to make a little more sense.

So I could go 3mm spacer which would effectively reduce hub width and stud length, not ideal.

Or go 15mm hub centric if I can determine that the arches will allow it.

Apologies for the complete lack of comprehension on this; let's call it a mental block.