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Largest Tires Possible on NB?

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Old 11-28-2006, 03:39 PM
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993_Pilot
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Default Largest Tires Possible on NB?

I am doing a bit of research for my next purchase which is new 18" tires. What is the largest tires (Front & back) that have fit on a NB at RoW height w/non-rolled fenders? Please include your rim width, offset and camber. I undestand that there are some variations, but I want to get some first hand feedback on what has actually worked for the good folks here at RL. If I missed a similar thread in my search, please point me in the proper direction! Thanks in Advance.


Edit: Camber request added. Thanks Finn!

Last edited by 993_Pilot; 11-28-2006 at 03:55 PM.
Old 11-28-2006, 03:43 PM
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Flying Finn
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I have 18" 245 & 285 tyres on 8x18" w/ 48 offset & 10x18" w/ 52 offset. Rears are rolled but these would fit without rolling if the rear offset was 65.

Also, you need to know what camber setting people have, I have -3 in rear and -2.5 in front.
Old 11-28-2006, 05:11 PM
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mhm993
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I had 18 x 235 and 285 sport cups without rolled fenders on my last 993
Old 11-28-2006, 05:36 PM
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axl911
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I have 285x18 on mine NB with ROW M30 springs with no rubbing.
Old 11-28-2006, 06:26 PM
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GARY 95 993
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I have 285 x 18 on BBS LM's and Pss9's with no rub.
Old 11-28-2006, 06:32 PM
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Bill Verburg
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It depends a lot on ride height, my 265/35x18 on 10" ET56 rub ever so slightly at full compression, on ET 65 no problem
Old 11-28-2006, 06:32 PM
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axl911
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Jeff,

I think you need to also specify tire brand. Tires shoulder width varies from brand to brand. Here is what I have for my 95 NB.

Front wheel 18x8 ET 50
Rears wheel 18x10 ET 65
Tires are 225/40ZR18 and 285/30ZR18 Sumitomo HTRZ II
Suspension is MO30 spring/shocks
Normal spec alignment
No rolled fender
Old 11-28-2006, 06:34 PM
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TRINITONY
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nice looking one with some big tires...http://forums.pelicanparts.com/showt...ight=black+993
Old 11-28-2006, 07:02 PM
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George A
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I can fit huge tires on mine but the rear fenders are rolled plus I have almost three degrees of negative camber.

G.
Old 11-28-2006, 08:03 PM
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993_Pilot
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Originally Posted by George A
I can fit huge tires on mine but the rear fenders are rolled plus I have almost three degrees of negative camber.
G.
What is "Huge"? and what Rim width, offset, tires, etc?
Also, if anyone happens to know, approx. how much extra clearance does rolling the fenders give you? Thanks.
Old 11-28-2006, 08:42 PM
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George A
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I don't have my fronts rolled, just the rears. In my avatar, I'm running Pirelli slicks with 265/645-18's up front (I don't remember the offset on 8.5 inch rim) and 305/645-18's (10.5 inch, et 56) in the back. I can actually fit the older Hoosier 305/30-18's in the back, which are wider than their current R6 315/30-18's.

I'm not sure how much more room you get with rolling the rears, but it's really worth it and real easy. With the right camber and wheel, its amazing what you can fit back there. Oh yeah, one last thing: I think every 993 is just a little different. I think I have the widest narrowbody built.

G.
Old 11-28-2006, 08:54 PM
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Mark in Baltimore
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Originally Posted by George A
I think every 993 is just a little different. I think I have the widest narrowbody built.
Absolutely. George has the widest one that I know of. I can just barely stuff 245 front and 285 Hoosiers in my car with 8"x18"/10"x18" Fikses, 51mm/63mm offsets. George, do you think your sidewalls are too high/have too much leverage for acceleration?
Old 11-28-2006, 09:07 PM
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George A
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Mark,

Yes, the taller the sidewall, the taller the gearing, thus I think accelerates just a little slower. The benefit of the taller sidewall to me is that doesn't heat up as much as the shorties (285/30/-18's) plus there are some areas at my track to where I have to either shift up or ride the rev limiter. Not so with the taller ones. I use both, that way I can legaly change gearing.......

G.

Last edited by George A; 11-28-2006 at 10:55 PM.
Old 11-28-2006, 09:57 PM
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993c2cab
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285 rolled no rub very sexy
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Old 11-28-2006, 10:38 PM
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Mark in Baltimore
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Thanks, George!


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