shadowknight

Looking at a set of cayman wheels for my 89 928. The wheels are 8J x18 ET57 and 9J x18 ET43.


I believe the wheels will fit, but looking for a second opinion.

GlenL

The wheels work well. The trick is the tires in the front. 245 maybe, 235 likely. Not all tires are created equally even with the same numerical sizes.

shadowknight

I was looking at the Hankook Ventus EVO K110 (Lots of postive feed back on the forums for this series)
Fronts 235/40/18
Rears 265/35/18

JWise

They should fit just fine. I'd go with the 235 up front. Out back, IMHO I'd go with 255 on a 9" rear - that's what Porsche did. Good looking wheels, BTW.

pcar928fan

I'd do 245 and 255 just to get the balance even closer... That is just me. I put (on 16" wheels though) 245's on 7.5" for the track...

redpathtribe

As others have said, they should fit fine, but the 43et on the rears may be a bit close the fender. I'm running 19" Carrera Classics, but they were Cayman takeoffs as well. 8x19 et 57 front and 9.5x19 et 46 rear. The rears are pretty close to the fender, and that's with factory rolled GT fenders. et 43's will even stick out slightly more.

Have 235's on the fronts (aspect ratio is going to be different I know because of rim diameter) and 265's on the rear, but that's on a 1/2" wider rim. Check the overall diameter on the tire sizes, best if you can keep the diameter as close as you can to 25".

Wheels look NICE, anxious to see how they look on a 928.

heinrich

Gary I know I stand alone but I'm not sure 43 will work on an 89 in the rear. It may be very close to the fender. I guess you should use AO's calculator.

GlenL

Here's a thread with my Cayman wheels. Same size and offset but different spoke pattern.

http://reutterwerk.com/forums/showthread.php?t=21111

928porschepatrick

in my case 265-35-18 9" et43

tilac999

So, 235 on an 8" up front and 275 on a 10" rear sound good to you guys?

whiteNSXs

Being a 9" rim, the wheel is narrower than your rear wheel by 12mm. It will actually tuck inwards by 3mm compared to yours.
Steve

megaelf

I have an -89 GT with these Cayman S wheels (9" ET43 and 265/18) and a 5mm shim/spacer. No rubbing at all.

dprantl

^^^^^^

Wow, how many air molecules fit between the tire and fender over there??

Dan
'91 928GT S/C 475hp/460lb.ft

shadowknight

Thanks guys for the advice and pic's. I ran the numbers in AO's Calculator and it looked good.

redpathtribe

DOH! You're right Steve. Typing while too tired at night...

Carry on shadowknight...