997 19 turbo wheel to boxster 986
 

can you fit original porsche 997 turbo 11J 19INC wheels to a 986 with wheel spacers, thankyou

If you remove the fenders from the Boxster...

If you follow jmatta's advice, sure! In reality, those are much too wide to stuff on the back of a Boxster.

18x10s fit.

The key figure you left off is offset. This is the most important # you need when replacing wheels on your Box. It determines how far in or out the wheel is from the hub. Without considering offset, you could make an expensive mistake. The offset is listed on the wheel.

Let's begin with the std 9x18 Box rear wheel. It has an offset of 52. The majority of the aftermkt whls sold are 10x18 with an os of 47. The 10"/47 whl will require 8mm more space on the inside (suspension) and 18mm more room towards the fender. This is defined as -8 & +18 since the rim is moving closer to the suspension (-8) and closer to the fender (+18). -8 is about as big as you want to go because the 10"/47 comes VERY close to hitting the suspension. A 10"/46 would be better (-7,+19) but aren't manufactured in mass quantities.

Now for your Turbo whls. I believe from previous questions about these whls that the os is 65. Without spacers, you'd have a -38,+12 from the std whl. No way would it clear your suspension with a -38. By the time you get enough spacers on to clear your suspension, you'd have to take Jmatta's advice and cut your fenders - you'd end up with +42 after the shift. Plus it would require a ridiculous spacer. These whls just won't work.

Do a search on offset for lots of information. Also, be careful when buying whls off ebay. Lots of ads say the whls will fit a Box. Sure, if you want to load up on spacers. Know the offset before you buy.

wheel offset calculator: http://www.1010tires.com/WheelOffsetCalculator.asp

husker boxster gave you a very detailed answer as to why these wheels wouldn't fit. However, if you wish to try, your car could look something like this...