What size spacers would i need for a et48 wheels for rear of turbo 87 930 — 18x11 ——

 

A great deal of personal touch went into assembling these first generation turbos. Each chassis, even within the same model year, is slightly different from the next.

That said, you will probably require 25-30 mm spacers...depending on the location of your oil line and the shape of your fender lip.

 

I have rear wheels that measure 17x11", with a 17 mm ET. They fit with no rubbing. I am using the stock rear spacers (I think they measure 28 mm).

So if you have wheels with 48 mm offset, then I'd guess you would need adapters/spacers measuring about an additional 30 mm. (30 + 28 = nearly 60 mm of adapter between the wheel and the hub.)