I'm new to 6speedonline, I have a 97 Boxster and want to upgrade my wheels w/ Porsche OEM wheels. I was wondering if the Carrera 18" Turbo Twist wheels 18x8 front & 18x10 rear fit my Boxster. Currently riding on 16" wheels, I will be doing H&R springs as well. Any issues w/ rubbing? Any suggestions will be greatly appreciated. Thanx.

 

There are two different turbo twists wheels... ones off of the 993 turbo (which where hollow spoke) and a solid version and secondly the newer hollow and solid version from the 996 turbo... the 966 turbo (also seen on the carrera 4) will not fit as they are 11 inch in the rear... The ones I assume you are talking about are these... http://www.wheelenhancement.com/inde...elDetail&id=39 . Like I said they can be found in hollow (good luck) and cast. Be careful, you need to know the offset (ET) of the rims especially in the rear to make sure they will fit. If you are talking about OEM turbo twists that have a 10" rear then they will be 65mm ET which means you will have to run close to a 1" spacer on the rear to keep from rubbing... and yes you can still lower it then. Hope that helped...

 

It may not be important to you, but 18s are not approved fitments for '97 Boxsters. There were some structural reinforcements made '98-. With that said, many people run 18s or even 19s. You might take this into consideration if you put a lot of miles on pot-hole infested roads.

The 10" rears will not directly fit since the offset is wrong, but if you get quality spacers to give you a net offset in the area of 45 to 48mm, you should be good to go. If you feel you suffer from terminal understeer, you may just consider 17s. With a 10" rear, a 265 is a little narrow and can get curb rash easy. Running a 285 could slightly increase understeering tendencies. A high performance and cheap setup is factory 17s (which are lightweight) but run 225/45s instead of the 205/50s.

 

285's will rub in the rear unless you roll the fenders... everyone who runs 10 inch rears go with 265... I have 9.5 rears and run 265 on Carrera Lightweights

 

Not true. Granted a 10" rear is very tight, but there are many considerations including offset, alignment, ride height, suspension, actual tire brand/model, exact year/model, manufacturing tolerances, etc.

Porsche only approves a 265 because that is practically a guaranteed fit. For me, I run 285s that are very wide and actually wider than my 295s, and they fit without rubbing. You cannot say "will" and "everyone" here. Only "may" depending on various factors. A lot of people successfully run 285s.

 

Gosh, im sorry... First off I was talking about the 986 boxster... and offset will not play that big of a roll as long as you have it close to right in the rear whether by spacers or not... but I had no idea that wheels had different offsets and that different tires have different widths even when they are marked as say 285... The majority of the time 285's will not work in the rear for the boxster... if you don't believe me ask Dave at Wheel Enhancement... or do a search over at ppbb.com/ They may not rub everyday driving but most will... let alone the fact you will need to tie back your parking break in most situations...

Bruinbro on here runs some pretty wide rears on his Boxster S on custom Volks wheels and rolled fenders... Im not positive but I remember him saying they were 285s.

I have never had 285's or let alone 275 on my rears but I researched it Extenisvely before I went with 265s... if you are looking for the best performance, you probably don't even want to go with anything bigger than 265 anyways... don't believe me on that ask over at the boxster racing board

 

Hmmm... OK then.

I am talking about a 986 Boxster which is what the original poster has. I have a 986, so am I not part of the "everyone" in your reference? I'm very familiar with PPBB, Boxster Racing Board, and Bruinbro's setup. His is also one of a kind. He runs 10.5s with modified JIC coilovers and the same "295" tires as mine (well, used to anyway). I did not say that 285s "will" fit. I said they "may" fit depending on a variety of conditions. Wheel Enhancement is a great resource, but they are not perfect and can not know every condition under which their wheels may be used. Contrary to what you may believe, offset is critical if you plan on running 285s. It is very tight in the rear of a 986 and every mm counts. I am not advocating the original poster run 285s or even 18s--only contradicting your statment that [everyone who runs 285s will get rubbing]. I will say to the original poster and others interested that if you're going to run 265s, you can save yourself a lot of trouble and just run the factory 9" Boxster Turbo Looks like they come from Porsche (which is a much cheaper setup as well).

If you don't want to believe my information, that is cool with me. I do think it is misleading to generalize and present 3rd-hand information as facts when they are not.

 

Well im not one to argue at all especially an e-arguement, but if you notice you jumped onto me after a quick reply to your original post. When I read your original post, it seemed to me that the original poster was going to read it as 285 are the way to go... I used quick reply and yes did make a general statement concerning 285s... but you know just as well as I do that for the most part my suggestion was exactly what he would get if he asked anywhere else.... but anyways im done with this... i have 265s on my car and you have 285s... if he still goes with 10" rears I suggest 265s, unless he can be assured the 285s won't rub.

 

Thanx for all the great info, I understand there is the point of wheel spacing, wheel adapters & tire size. I will be installing PSS9's & run my stock 16's until I can figure out what wheel size to go with. Alex @ Sharkwerks has been very helpful in my quest to find the right look, stance & performance out of my 986. I'm staying w/ the OEM look, so I'm debating w/ the 18" Turbo Twist or the 19" Carrera S wheels. Keep the great advice coming, would like to see some pix as well.

 

check mine out in my avatar 265/35/18

 

Hey JP-S-St.Louis, your set up is what I'm going for. Are you running springs or coil-overs?
What wheels?
What size front & back?
What size tires front & back?
Any spacers?
More pix please.

 

Hi Top Ramen,

If you are going with PSS9s, then I would recommend the factory Turbo Look 9" rears. PSS9s (and most coilovers) complicate things because the tender springs/perches take up precious space. You will not be able to run the offsets I mention at the top if you use PSS9s. If you want to run 10" Turbo Looks, then you could run the widebody 993 Turbo wheels (since they will be in the ballpark of the offset you need without having to run spacers), but IMHO they stick out a little too far if you are running 285s and may rub, so those would need 265s anyway. In the end, the 9" wheels and 265 tires will weigh less, and the Turbo Looks are not the lightest to begin with. If you are staying with the OEM look, I would recommend 18" max. 19" look OK (IMHO) on 911s, but I think they are too big on a 986. Even the right 17s look good on 986s. The Turbo Looks are a classy wheel that fits the more rounded classy shape of the 986 Mk I body style. They are one of my faves.

I have several pictures of Turbo Looks on 986, but the attachment function doesn't seem to be working right now. I think you can PM me for them. I have my factory 18" (7.5" and 9") Turbo Looks with 225/40s and 265/35s, my aftermarket 17" (7.5" and 9") "copies" with 235/45s and 265/40s, and factory widebody 18x10" with 285s (courtesy Trygve).

Good luck,
arenared

 

Hey Arenared, thanx for the advice. Here is the set up, quote me if I'm wrong.
993 Turbo style 18-in. wheels:
18x7.5 w/ 235/40's up front
18x9 w/ 265/35's in back
Is that the right set up w/ PSS9's?

 

I think that should be 225/40-18 in the front...

 

225/40 on a 7.5"; 235/40 on an 8". You have mail.