997 wheels on 987

[donlycan]

Will all factory 997 (narrow body) Factory OEM 18" and 19" wheels fit on the 987 with 17mm spacers on the rear and no additional spacers on the front???

donlycan

[berty987]

You mean can you fit an 11" rear wheel on a car designed for a maximum of a 9.5". Though Techart offer 11" rims on some of their cars, i think the issue is that spacers can only help if the offset is under what is required. I beleive the 997 wheels already have a larger offset so fitting spacers will not help the issue of the clearances.

[donlycan]

Thanks for the input. I thought I had seen a number of cars (Caymans) with the larger wheels. I even thought that Porsche offered the same stlye as the 997's with the correct offset. I'm still confused.

donlycan

[Westcoaster]

Thanks for the input. I thought I had seen a number of cars (Caymans) with the larger wheels. I even thought that Porsche offered the same stlye as the 997's with the correct offset. I'm still confused.

donlycan

Have a look at the wheel/tire TSB found under the DIY menu, the wheels, part numbers and the offsets are there, it should answer almost all of your questions (I know it did for me!).

Generally for a 987 the widest tire up front is a 235 on a 8.5" wide wheel and out back a 265 on a 10" wide wheel (Porsche approved).

[berty987]

If you look through the porsche tequipment catalogue on line there are various options for the boxster and cayman in 19" wheel sizes , though the largest width wheel on the rear is 10". The wheels look the same as those on the 997 , but only the front wheels are actually the same rim width and offset (since both the 911 and 987 use essentially the same front end). Buying aused set of 911 wheels will result in only the front wheels being able to fit your car.

[donlycan]

Thanks again for the great info!!! :renntech:

[trunkmonkey]

I have successfully put 911 turbo twists on my 987, the rim is 11 with a 295 tire. I used a 25mm spacer for the rear and a 7mm spacer in the front, and yes the tire slightly sticks of the side of the car. You don't need a front spacer but I added them for looks. You could likely get away with a little as a 23mm spacer. So how does the car handle? it has almost no oversteer, while I haven't really pushed it it certainly sticks to the road more than it used to. I could often get the rear to kick taking a 90 degree turn at about 45mph, now it just turns, beware it tosses you and you passenger around instead...