W I D E wheel fitment questions on NB 993 18x9.5 and 18x11
08-25-2013, 11:36 AM
#1
Burning Brakes
Thread Starter
W I D E wheel fitment questions on NB 993 18x9.5 and 18x11
I've been digging around the forums on wide wheel specs and width/offset/tiresizes for NB 993's. I am buying/building a custom set of wheels from Fifteen52. My buddy Ed and I are going with a set each of their new 2pc forged wheels. Formula's for Ed and Tarmac's for me
2pc Forged Tarmacs - http://images-cdn.ecwid.com/images/185392/133491030.jpg
2pc Forged Formulas - http://images-cdn.ecwid.com/images/185392/133491199.jpg
Here's the dilemma... The only barrel widths avail are 8", 9.5" and 11". Ed's got a NB 964 so he's gonna do 8"F and 9.5"R with maybe 10-15mm more aggressive offset to push his out to the edge of the fender lip (the centers are CNC'd and the welding dictates the final offset). No biggie for him...
I, on the other hand, want wider wheels mostly for aesthetic purposes with a deeper lip. I was going to try to run 9.5"F and 11"R on my NB 993 C4... and thats why I'm polling the gallery here.
After reading tons and tons of forum threads, I found a few ppl talking about running 18x9 ET57 up front (one with w/ 7mm spacers to push them out further for aesthetics w/ 225/40's without problems), it looks like an 18x9.5 ET52-56 range up front with 235/40 could work ok... Correct me if I'm off. I will be running KW coilovers and going pretty low. Maybe a bit under RS spec... I'm just not too sure on inner/clearance of suspension.
The rears at 18x11 is where I'm concerned... offset specifically. If I can fit the 18x11, I had planned on running a 265/35 tire. I KNOW the 265 is narrow for the 11 but, 11's are the only wider option they have and I would need them to fit so, I dont think I'm gonna be able to run a wider tire on an 11" NB 993 and go very low... I dont mind a bit of a stretch. Will 2-2.5 degree neg camber assist it? Does the wheel hit inboard? I dont have a problem with rolling the rear fenders either if there is some scrubbing (I'm a long time VW/Audi guy... thats just what we do LOL). The 19x11 "Lobster Claw" and RUF replica wheels that ppl run on 993's are 67et and I assume theyre running 275/35's?
Whats your take? I really dont wanna run 8F/9.5R or 8F/11R... 9.5F/11R seems doable. Who's got some solid fitment info?
I've already asked Bill Verbug. His experience with running 18x9 up front was very tight so he doesnt think there's a way for it to fit. Then 18x10 65ET with a 285/30 was as wide as he could go in rear... saying lower height would restrict it more. Figured I'd ask a few more ppl...
Anyone else have experience trying to fit 18x9.5/11 on NB 993?
2pc Forged Tarmacs - http://images-cdn.ecwid.com/images/185392/133491030.jpg
2pc Forged Formulas - http://images-cdn.ecwid.com/images/185392/133491199.jpg
Here's the dilemma... The only barrel widths avail are 8", 9.5" and 11". Ed's got a NB 964 so he's gonna do 8"F and 9.5"R with maybe 10-15mm more aggressive offset to push his out to the edge of the fender lip (the centers are CNC'd and the welding dictates the final offset). No biggie for him...
I, on the other hand, want wider wheels mostly for aesthetic purposes with a deeper lip. I was going to try to run 9.5"F and 11"R on my NB 993 C4... and thats why I'm polling the gallery here.
After reading tons and tons of forum threads, I found a few ppl talking about running 18x9 ET57 up front (one with w/ 7mm spacers to push them out further for aesthetics w/ 225/40's without problems), it looks like an 18x9.5 ET52-56 range up front with 235/40 could work ok... Correct me if I'm off. I will be running KW coilovers and going pretty low. Maybe a bit under RS spec... I'm just not too sure on inner/clearance of suspension.
The rears at 18x11 is where I'm concerned... offset specifically. If I can fit the 18x11, I had planned on running a 265/35 tire. I KNOW the 265 is narrow for the 11 but, 11's are the only wider option they have and I would need them to fit so, I dont think I'm gonna be able to run a wider tire on an 11" NB 993 and go very low... I dont mind a bit of a stretch. Will 2-2.5 degree neg camber assist it? Does the wheel hit inboard? I dont have a problem with rolling the rear fenders either if there is some scrubbing (I'm a long time VW/Audi guy... thats just what we do LOL). The 19x11 "Lobster Claw" and RUF replica wheels that ppl run on 993's are 67et and I assume theyre running 275/35's?
Whats your take? I really dont wanna run 8F/9.5R or 8F/11R... 9.5F/11R seems doable. Who's got some solid fitment info?
I've already asked Bill Verbug. His experience with running 18x9 up front was very tight so he doesnt think there's a way for it to fit. Then 18x10 65ET with a 285/30 was as wide as he could go in rear... saying lower height would restrict it more. Figured I'd ask a few more ppl...
Anyone else have experience trying to fit 18x9.5/11 on NB 993?
08-27-2013, 02:25 PM
#2
Rennlist Member
Okay no one is responding so I take a stab at this...
Rich - I like the wheel choices- not too much bling which I like. On the fronts, I think that 9" will be a little too wide as is so 9.5 wont work based just on the size of the wheel alone. Then you add the tires and lowering and that doesn't give much room for when the wheels are moving. Let's say you can get the 9 or 9.5 to fit under stock fenders, this would be static only- once you start rolling, you will run into issues even with rolling the fenders. Running wider wheels will force you to run narrower tires which will resulted in the too much stretched look so that's kind of defeat the purpose for handling puposes on these cars imo. I personally would go with 8s and have the all the options to run 225/235/245s section width- all good options and tire manufacture choices readily available.
On the rears, I know the 10" wide is a safe bet and 10.5" is doable (both will accomodate up to 295mm nicely). When you get to 11" wide, you are pushing it and this requires very careful planning which includes tire selection- which is now narrowed down considerably. I think with you willing to do fender rolling/pulling etc...11" might work but you will need to have more flexibility with less tire choices. So what's your comfort level going .5" wider but having more headache and still only be able to use up to 295 section width tires??? With that said, I would not go with 9.5" in the rear and would also willing to make some sacrifice to run 11". I would not go lower than 285s on the 11s as 295s are nice and 305s are ideal- 305mms are used on the 19X11 lobster claw wheels btw. But again, you will find more 285s, 295s, even 315s than 305s so flexibility is key. With 11", you will need high ET so stay in the 62-67 range. We are talking about mm here and there with regards to the space left over to accommodate the tires so it's kind of a moving target situation- not easy.
With all that said, I still think 11" is a possibility BUT I would highly recommend you do a few test fitments first as well as do a visual inspection, touch and feel of some of the cars that do run these wide combo and get a feel from the owners and their feedback of their experience. Get as many reference points as you can!
I am local to you and can start by offering a couple of reference points as mentioned. There is nothing better than to get a couple of trial fitments. I have a couple sets of 18s with the ball park fitment that you will need and I am willing to help you test fit these on your car. You'd have to bring your car to my place and plan on spending 1/2 an afternoon to work on these fitments. I only use hand tools to remove these expensive wheels so don't plan on this being a rush trial/test fitment. If you are willing to drive over then shoot me an email/pm so we can coordinate. I maybe available this Saturday or Sunday weather permitting so let me know. Good luck.
Rich - I like the wheel choices- not too much bling which I like. On the fronts, I think that 9" will be a little too wide as is so 9.5 wont work based just on the size of the wheel alone. Then you add the tires and lowering and that doesn't give much room for when the wheels are moving. Let's say you can get the 9 or 9.5 to fit under stock fenders, this would be static only- once you start rolling, you will run into issues even with rolling the fenders. Running wider wheels will force you to run narrower tires which will resulted in the too much stretched look so that's kind of defeat the purpose for handling puposes on these cars imo. I personally would go with 8s and have the all the options to run 225/235/245s section width- all good options and tire manufacture choices readily available.
On the rears, I know the 10" wide is a safe bet and 10.5" is doable (both will accomodate up to 295mm nicely). When you get to 11" wide, you are pushing it and this requires very careful planning which includes tire selection- which is now narrowed down considerably. I think with you willing to do fender rolling/pulling etc...11" might work but you will need to have more flexibility with less tire choices. So what's your comfort level going .5" wider but having more headache and still only be able to use up to 295 section width tires??? With that said, I would not go with 9.5" in the rear and would also willing to make some sacrifice to run 11". I would not go lower than 285s on the 11s as 295s are nice and 305s are ideal- 305mms are used on the 19X11 lobster claw wheels btw. But again, you will find more 285s, 295s, even 315s than 305s so flexibility is key. With 11", you will need high ET so stay in the 62-67 range. We are talking about mm here and there with regards to the space left over to accommodate the tires so it's kind of a moving target situation- not easy.
With all that said, I still think 11" is a possibility BUT I would highly recommend you do a few test fitments first as well as do a visual inspection, touch and feel of some of the cars that do run these wide combo and get a feel from the owners and their feedback of their experience. Get as many reference points as you can!
I am local to you and can start by offering a couple of reference points as mentioned. There is nothing better than to get a couple of trial fitments. I have a couple sets of 18s with the ball park fitment that you will need and I am willing to help you test fit these on your car. You'd have to bring your car to my place and plan on spending 1/2 an afternoon to work on these fitments. I only use hand tools to remove these expensive wheels so don't plan on this being a rush trial/test fitment. If you are willing to drive over then shoot me an email/pm so we can coordinate. I maybe available this Saturday or Sunday weather permitting so let me know. Good luck.
08-28-2013, 01:36 AM
#3
Burning Brakes
Thread Starter
Thanks for the reply! I might take you up on the fitment offer... would do wonders for actual measurements. I posted this in another forum and have some solid info there too. I'll get down to the bottom of this... I'm stubborn so listening to only a few ppl tell me NO, but still a few say YES, makes me want to definitely see for myself 
08-28-2013, 09:54 AM
#4
Rennlist Member
No problem, just let me know. FWIW, and as far as I know, I am the only one running 18X11s in the back of my turbo...on 315mm rubbers AND on stock fenders. So yeah, do what you like because it's your own car and don't afraid to be a little different. Just got to be a little flexible is all...Nice looking car btw.
10-08-2013, 01:24 AM
#5
Burning Brakes
Thread Starter
Well... I took a chance and bought some wheels/tires (used) from eBay and they fit like a charm! 18x8.5F ET41 w/ 225/40 Pzero Rosso's and 18x11R ET60 w/ 285/30 Pzero Rosso's. If I were to lower my car another 15-20mm, it would probably need the rear fenders rolled but on totally stock fenders til I bother. I might go with a 275/35 rear after these are shot just cause I'd like Pilot Super Sports
18x11 on Narrow Body. NB guys, have at it.
Ignore the missing center caps LOL... I'm working on a matching set.
18x11 on Narrow Body. NB guys, have at it.
Ignore the missing center caps LOL... I'm working on a matching set.
10-17-2013, 02:00 PM
#7
Rennlist Member
Nice find Rich and looks great too! Strange when I look at other P-cars (yours is an example) even with 285s, they look really wide and when I look at mines, I kept thinking I need to go wider. I have P-Zeros too so it's must be my eyes playing tricks on me. PSS are nice tires and you won't be giving up much section width anyway at 275mm and in fact, it may be just as wide overall with a higher side wall to protect those rims.
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03-09-2014, 07:25 AM
#8
Hi Rich,
That's a great a fit in your NB 993 with 18X11. That was also my concern with my NB 993 if I can fit a BBS LM which are 8X!8 Front and 8X11 Rear. Responders on the BBS thread settled for 18X9.5 and said 18x11 may be too much. What can you say to this? May car is 1995 bone stock Carrera NB with 17" cups wheels. I want a BBS for this baby and I 'm also been reading a lot before investing into the high priced wheels. I just hope I can find the tallest side wall tire to fit them since I want a comfy ride as well. I hope you can advise me well on this. Many thanks. Nice explanation by Mudbuddha as well. Thanks for helping out the newbies like us.
That's a great a fit in your NB 993 with 18X11. That was also my concern with my NB 993 if I can fit a BBS LM which are 8X!8 Front and 8X11 Rear. Responders on the BBS thread settled for 18X9.5 and said 18x11 may be too much. What can you say to this? May car is 1995 bone stock Carrera NB with 17" cups wheels. I want a BBS for this baby and I 'm also been reading a lot before investing into the high priced wheels. I just hope I can find the tallest side wall tire to fit them since I want a comfy ride as well. I hope you can advise me well on this. Many thanks. Nice explanation by Mudbuddha as well. Thanks for helping out the newbies like us.
