18 wheels with et 30 ???

[Ale]

Hi,
i'm Alessandro from Italy.
I've a t6 caravelle from last year.
I'd like to put a new wheel 18". I finded from private a good wheels but the et is 30. I'm not sure is fitting in the t6. Considered that the tyres in Italy should be 255/45 18. And i put new suspension lower 30mm.
Somebody can help me ? what is the minimum et with this tyres ?

Thanks
Alessandro

 

[PaulE]

It can all be simply calculated, but what is the width if the wheels for a start?

 

[Ale]

Thanks for the reply.
Do you whant to know if the wheels i want buy are width 8 or 8.5?

 

[Ale]

8j x 18 H2, et 30 are the wheels i want to buy

 

[PaulE]

If i'm correct, then original size is also 18" x 8" and ET50. So your ET30 wheel outer side would stick out aprox. 10mm compared to original 18" which by my standards is quite OK.

 

[Ale]

I try the wheels but they are too much out.
Thanks