mdrums

I have LCA's already. running -2.5 front -2 rear. I'm going to run either Toyo R888 or Nitto NT01. I ran R888 for years and they lasted as long as the MPSC lasted, had mush better grip and cost $900 less per set.

NJ-GT

This is the only way to test.

The GTS uses different uprights than the Cayman and GT2/GT3/RS.

I know they would fit my Cayman based on measurements (if they were 5 lug versions), but the GTS is an unique animal on its own.

Great support from you as always. Thanks.

utkinpol

i meant to make more space for wider front rims to run 275 tire in front. it fits 9" wide rim but 10" would work much better.

i will try next time 275/315 nt01 tires on my car - as i heard now 3 times (including one today) of people runing 245/315 on 997 cars. 245 and 275 have same height so it should also work.

mdrums

Paul I 275 on 10" rims will not fit. For me to change out coil over is another $4-5k...got going to do that.

mdrums

Damon I have a lead on a used set of Forgelines that I'm trying to see if they will work. Orbit is sending 1 front to see if it fits.

I super appreciate your offer....if you want to send me one of the Challenge 9x18 et47 wheels I will check and see if it fits also. I'll take car of it, no mounting of tires, no scratches, I can give you my credit card for collateral.

brad@tirerack.com

One wheel on the way! Good luck!

TJ Elliott

Here's a link to a useful wheel offset Calculator/comparator.

http://www.1010tires.com/WheelOffsetCalculator.asp

Cheers

mdrums

Thanks!!!!!

My Stock is 8.5" wide et56
New wheel is 9" wide et47 which is the GT3RS front offset

According to this offset calculator I will have:
3mm more inner clearance
15mm more to the outside.

I think this is right on the edge of fitting...could work or may not...I will know this weekend since Damon at Tire Rack just called me and is sending a wheel out and I will have it on Thursday with a 255/35/18 fitted on it to be sure it doesn't rub the inner fender liner when the wheel is turned.

Also Orbit is supposed to send me a Forgeline wheel over that a friend of mine is selling. The offset is not exactly known so I will see if it fits to and figure out the offset.

Anyway, I will take pics and post so that those with GT3 Turbo S and GTS and Carrera S will know for sure what fits and what doesn't.

rijowysock

9+47 should fit fine, depending on tire of course.

the 991 takes a 9+30 front on 245 with ease

Turn3 Autosport

Mike,

We have run 9.0 et44 without issue on some 987 and 997 cars... My suspiscion is that you will be fine with those camber numbers... We even ran a 5mm spacer on one 987. Mind you, the tire was a 245.

brad@tirerack.com

Our listed fitments are conservative. With a bit more camber I'm pretty confident they are going to work fine as well.

mdrums

GTS front suspension is the same as Carrera S and from what I can see a Cayman/Boxster. Same uprights McPherson struts.

10 GT3

Here is the bottom line, the 18x9 ET 47 wheels will fit your GTS. The GT3 RS has the same fenders are a regular GT3 and even a base Carrera. The fender extension is just a tacked on piece to help project from rock damage and does not actually provide any additional wheel clearance.

Nick Wong

Mike, do your fitment check and don't listen to this drivel. The fenders with lip extensions ARE different- different part number, different part. A car with the RS fenders, whether carbon or steel w/lip, have much more clearance. Here are two pics from my archive illustrating the differences.

mdrums

Thanks Nick Wong...do far you are about the only guy that understands why I question fitment.

It's not the inner parts of the suspension I'm worried about its if the wheel sticks out farther than the fender and if there is any rub on the fender and inner liner. Thanks for the pics!