Max tire diameter, 996 NB?
#16
Instructor
Thread Starter
But I think I'm leaning in your direction: 235/40-18 (25.4" diam), 285/35-18 (25.9" diam). Difference is 2% which should be OK. And tread wear from 10/32 to 2/32 is 0.5" in diameter (another 2%) so by the time the rears are at tread limit the diameter difference will be 0.25". New rears with half-worn fronts might be interesting though, with a 3% diam difference. Maybe by then there will be a 295/30-18.
#17
I think you will be fine with PSS at 235/40/18 and 285/35/18.
I am running 235/35/19 and 305/30/19 with no rubbing, on my non lowered 996 40th.
In fact, I've ordered 235/40/18 and 295/35/18 BFG Rivals
As 6ta1 suggested, the front tire diameter will be the limiting factor at full lock.
The rears can go very tall as my fitment suggests.
I am running 235/35/19 and 305/30/19 with no rubbing, on my non lowered 996 40th.
In fact, I've ordered 235/40/18 and 295/35/18 BFG Rivals
As 6ta1 suggested, the front tire diameter will be the limiting factor at full lock.
The rears can go very tall as my fitment suggests.
#18
I think you will be fine with PSS at 235/40/18 and 285/35/18.
I am running 235/35/19 and 305/30/19 with no rubbing, on my non lowered 996 40th.
In fact, I've ordered 235/40/18 and 295/35/18 BFG Rivals
As 6ta1 suggested, the front tire diameter will be the limiting factor at full lock.
The rears can go very tall as my fitment suggests.
I am running 235/35/19 and 305/30/19 with no rubbing, on my non lowered 996 40th.
In fact, I've ordered 235/40/18 and 295/35/18 BFG Rivals
As 6ta1 suggested, the front tire diameter will be the limiting factor at full lock.
The rears can go very tall as my fitment suggests.
I was thinking about going 275/30/19 for the rears which would solve the diameter issue as well as balance better the handling (I have not enough oversteer on the dry and too much on the wet)
#19
Three Wheelin'
I'm running wb offset wheel with 295/30, stock height (for now) and no rubbing.
At stock height, I wouldn't be concerned upping to a 35 series tire. You might get better mpg (.5mpg) with the slightly taller ratio.
+1
At stock height, I wouldn't be concerned upping to a 35 series tire. You might get better mpg (.5mpg) with the slightly taller ratio.
+1
#21
Instructor
Thread Starter
I asked Tire Rack what they would recommend and the response is:
The super sport sizes we would suggest you use on the car would be 225/40-18 and 265/35-18. We cannot ensure larger sized tire pairings will work correctly and not rub.
Yow that's quite a different approach from what you all have recommended.
According to Tire Rack's web site, the diameter of these is 25.3" (rear), 25.1" (front).
275/35-18 are also available, diameter 25.6".
Again I'm not after the absolute maximum possible grip by pushing width. I'd rather get the PSSs in whatever size makes the most sense. I like the idea of keeping with the stock front sizes to prevent rub.
The super sport sizes we would suggest you use on the car would be 225/40-18 and 265/35-18. We cannot ensure larger sized tire pairings will work correctly and not rub.
According to Tire Rack's web site, the diameter of these is 25.3" (rear), 25.1" (front).
275/35-18 are also available, diameter 25.6".
Again I'm not after the absolute maximum possible grip by pushing width. I'd rather get the PSSs in whatever size makes the most sense. I like the idea of keeping with the stock front sizes to prevent rub.
#22
Nordschleife Master
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Maybe a typo (as in the other thread about x74 first impressions)? PSS doesn't come in 295/35-18, confirmed both at the Michelin and Tire Rack sites.
But I think I'm leaning in your direction: 235/40-18 (25.4" diam), 285/35-18 (25.9" diam). Difference is 2% which should be OK. And tread wear from 10/32 to 2/32 is 0.5" in diameter (another 2%) so by the time the rears are at tread limit the diameter difference will be 0.25". New rears with half-worn fronts might be interesting though, with a 3% diam difference. Maybe by then there will be a 295/30-18.
But I think I'm leaning in your direction: 235/40-18 (25.4" diam), 285/35-18 (25.9" diam). Difference is 2% which should be OK. And tread wear from 10/32 to 2/32 is 0.5" in diameter (another 2%) so by the time the rears are at tread limit the diameter difference will be 0.25". New rears with half-worn fronts might be interesting though, with a 3% diam difference. Maybe by then there will be a 295/30-18.
#24
balefire, I am interested in your feedback. Have you tried any other size for the rears? The 295/30 or 305/30 are quite larger (in diameter) than our 235/35 fronts and I have been wondering if that makes the PSM act too quickly (thinking the rears start to spin earlier than they really do since they are like 5% taller than stock)
I was thinking about going 275/30/19 for the rears which would solve the diameter issue as well as balance better the handling (I have not enough oversteer on the dry and too much on the wet)
I was thinking about going 275/30/19 for the rears which would solve the diameter issue as well as balance better the handling (I have not enough oversteer on the dry and too much on the wet)
I would consider changing alignment (max out camber front, 0 toe front, decrease toe rear, decrease camber rear) to reduce understeer before changing tires.
I would consider increasing my front tire width before I decrease the rear tire to reduce understeer.
#25
Burning Brakes
With your lowered x74 and keeping your rims, as others have said, the fronts determine max. I went through the same quandry you are in now, and just decided to spend a little more, and go with the right sized PS2s, which were under $1400 installed at costco, with road hazard, m&b, and N2 fill. I also use 7.5 mm spacers all.aroind from FVD. Some people, like me, just prefer Michelin tires because of past experiences, and afew $100 extra is worth it. Almost a year on the PS2 s and zero regrets. Alignment is the key to good wear. In my case, at or less than 5k miles ayear, they will last a very long time. Fun level and handling/ride are far more important than wear to me. What kind of miles per year do you expext to run?
#27
IIRC, 265 is the standard stock size that came on '99-01 models. Starting in '02, they started coming with the 285 width as standard.
#29