Boxster wheel fitment Options

[technicalninja]

Trying to wrap my head around what size spacers (range) I should be looking for to utilize stock 99 Boxster wheels on a "standard" flared 914.

Fronts are 17X7 ET 55
Rears are 17X8.5 ET 50

Any suggestions?

[JamesM]

Trying to wrap my head around what size spacers (range) I should be looking for to utilize stock 99 Boxster wheels on a "standard" flared 914.

Fronts are 17X7 ET 55
Rears are 17X8.5 ET 50

Any suggestions?

First, what size tires?

Second, as already asked, what do you mean by "standard"? Is that a stock narrow body or steel GT flares?

Third, assuming you are talking GT flares is how flush do you want the wheels with the fenders?

Depending on tire width you are going to need minimum a 20mm spacer in the front for the 7s to clear the front struts. 8.5s most likely are not going to fit a narrow body rear, assuming you are talking GT flares than 33mm minimum to clear the inside. These are both the MINIMUM you need to clear the inside assuming your tire size is not wider than the rim. If you are running GT flares then you may want to make these larger to fill the fenders. Exactly how much larger depends on the look you want, the tire you are running, and the measurements of your specific car.