OZ racing wheel option, Opinions
#16
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I already posted over in 997 GT3 land on this same post - basically, I like them for the street, not sure about them for the track, especially if "too" light and therefore lacking "meat". I suppose if you can't afford a forged wheel, they might be worth a try. They don't come in a 9" wide front though...
#17
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Are these for your 944 Turbo? Any concerns about clearance with the front bearing cap? We need a larger centerhole than a 911 (see special BBS RE's, etc.). What sizes and offsets are you trying?
#18
Race Director
Ok I ordered a set so I will be the tester. offsets were 53/68. for the 997-3 does not come in 9x18 only 8.5 x18. so I ordered 8.5 and 12x18. I did not order TPMs but went with steel stems. Black. total with shipping 1831.00. to my front door. I asked when I could expect to get them, he said that he hopes it would be by the end of March but the shipping confirmation states mid April. Just in time for my first event. I will post an update with some pics when the come in. Wow last week a Traqmate, this week rims. I hope I can keep the credit card bill away from the wife, or I will be looking for a place to sleep next.
#19
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Thread Starter
I was going to save that discussion for another thread, I was searching the forums to see what others have done. but What I want to try is the Nitto NT 01. I already have a set of r888 on my 19 inch rims. The reason I went with 18 is to get a chance to try something new. the nitto offers a 245/40/18 for the front but they only offer a 315/30/18 in the rear which is quite a bit shorter in diameter that the 305/30/19's a closer size would be the 335/30/18 but Nitto does not make one. Toyo does but Nitto does not. so I want to make sure that does not mess up my ABS or other nannies. on the car. ( I know, turn off the Nannies)
#20
Race Director
I will put that in my little note book for future reference.
I was going to save that discussion for another thread, I was searching the forums to see what others have done. but What I want to try is the Nitto NT 01. I already have a set of r888 on my 19 inch rims. The reason I went with 18 is to get a chance to try something new. the nitto offers a 245/40/18 for the front but they only offer a 315/30/18 in the rear which is quite a bit shorter in diameter that the 305/30/19's a closer size would be the 335/30/18 but Nitto does not make one. Toyo does but Nitto does not. so I want to make sure that does not mess up my ABS or other nannies. on the car. ( I know, turn off the Nannies)
I was going to save that discussion for another thread, I was searching the forums to see what others have done. but What I want to try is the Nitto NT 01. I already have a set of r888 on my 19 inch rims. The reason I went with 18 is to get a chance to try something new. the nitto offers a 245/40/18 for the front but they only offer a 315/30/18 in the rear which is quite a bit shorter in diameter that the 305/30/19's a closer size would be the 335/30/18 but Nitto does not make one. Toyo does but Nitto does not. so I want to make sure that does not mess up my ABS or other nannies. on the car. ( I know, turn off the Nannies)
I am needing to buy track wheels again. I am confused on to buy 19's or 18's. I had 18's CCW's before and loved them. I just wonder how much truth there is Porsche telling me my car (2009 Carrera S with the lower ride height Sport PASM) is designed around 19's.
Anyone???
#21
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Thread Starter
I would like to ty the NT01's too. Lots of 996 and 996 turbo guys at my track have used the NT01's and liked them. The R888 is the trie choice now were I track, Sebring.
I am needing to buy track wheels again. I am confused on to buy 19's or 18's. I had 18's CCW's before and loved them. I just wonder how much truth there is Porsche telling me my car (2009 Carrera S with the lower ride height Sport PASM) is designed around 19's.
Anyone???
I am needing to buy track wheels again. I am confused on to buy 19's or 18's. I had 18's CCW's before and loved them. I just wonder how much truth there is Porsche telling me my car (2009 Carrera S with the lower ride height Sport PASM) is designed around 19's.
Anyone???
http://www.performanceplustire.com/p...-18#prodAnchor
#22
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The problem with the Nitto is they don't make a rear tire size for our 997 platforms. These cars are designed, whether in 18 or 19", to run on about 25.5" front diameter tires and 26.5" rear diameter tires (plus or minus a little). Those diameters come into play regarding speedometer, odometer, ABS, PSM, etc.
Toyo RA1 and R888 make a "Porsche diameter" rear.
As to 18 vs. 19 - Porsche puts 18s on the 2009 997 products, so clearly it's an acceptable tire size.
Toyo RA1 and R888 make a "Porsche diameter" rear.
As to 18 vs. 19 - Porsche puts 18s on the 2009 997 products, so clearly it's an acceptable tire size.
#24
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The R888 in 305 is 26.3" and in 335 is 26" rear diameter, so no problems there. I wouldn't use 315 with the 25.5 diameter... I've been reading and hearing that the further you get from stock diameter, the more potential you have for issues. The car and systems are all designed to about a 26.5" rear tire diameter and it makes sense that if you change that for 25.5, or worse yet 25", you run some risks. RWD is less of a concern, but I would think AWD would be even more sensitive to improper tire diameters.
#26
Rennlist Member
Thread Starter
I have been trying to do a search on this forum but so far I must be missing the buzz words, but I swear that people have used the 315/30/18 with out any issues. Obviously you have as well. Did you find that you noticed the difference in low end pick up and shifting points? were the fronts 245/40/18
#27
I have been trying to do a search on this forum but so far I must be missing the buzz words, but I swear that people have used the 315/30/18 with out any issues. Obviously you have as well. Did you find that you noticed the difference in low end pick up and shifting points? were the fronts 245/40/18
Do your search on the 997 Gt3 board. Lot's of info over there on tires sizes. I seem to remember that the consensus was to not run the 305 R888. The 315 was more stable.
#28
I found this topic, using the search. Since it's not that old, I hope you guys might be able to help.
I own a 2006 997S and I intend to buy 18" OZ Alleggerita HLT, but I don't really know the sizes I need. Right now I have 8.5x19" and 12x19" GT3 wheels.
The 18" wheels should be:
8.5x18" and 11.5x18"?
With what ET?
Tirewise I'm going for Michelin Cup or R888's. (More likely R888)
Rears should be 305/35ZR18? Or 315/30ZR18? Or 335/30ZR18?
305/35ZR18 has an overall diameter of 26.3
315/30ZR18 has an overall diameter of 25.5
335/30ZR18 has an overall diameter of 26
So 305 and 335 should be the best option.
Fronts should be 235/40ZR18?
235/40ZR18 has an overall diameter 25.5
245/40ZR18 has an overall diameter 25.7
255/35ZR18 has an overall diameter 25.1
I have no idea whatsoever on fronts ... Hope someone can help ..
I own a 2006 997S and I intend to buy 18" OZ Alleggerita HLT, but I don't really know the sizes I need. Right now I have 8.5x19" and 12x19" GT3 wheels.
The 18" wheels should be:
8.5x18" and 11.5x18"?
With what ET?
Tirewise I'm going for Michelin Cup or R888's. (More likely R888)
Rears should be 305/35ZR18? Or 315/30ZR18? Or 335/30ZR18?
305/35ZR18 has an overall diameter of 26.3
315/30ZR18 has an overall diameter of 25.5
335/30ZR18 has an overall diameter of 26
So 305 and 335 should be the best option.
Fronts should be 235/40ZR18?
235/40ZR18 has an overall diameter 25.5
245/40ZR18 has an overall diameter 25.7
255/35ZR18 has an overall diameter 25.1
I have no idea whatsoever on fronts ... Hope someone can help ..
#29
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Tire Rack's system will show you the offsets you need for your car. 235/40-18 front and 305/35-18 rear appear to match the OEM diameters perfectly. With the RA1 I ran 245/305 and it was very effective and might be what I'd get if I were going 18" R888. By the way, there's no 18" PSCup offering that matches what we need. I'm torn between 18 and 19" myself given that right now for Porsche there are 3 good 19" options (PSCup, Pirelli Corsa, and R888), while the 18" offerings are minimal and dropping - that is if you want to stick with the OEM 25.5 and 26.3" diameters (speedo, odometer, PSM, ABS, etc.).
#30
RonCT: I was waiting for you to come with answers, thnx a lot!
I decided to go for 18" as I already have a set of 19" GT3 wheels and a set of 19" Lobsters. If Michelin doesn't offer the sizes I need, I'm definitally going for Toyo. I run PS2 on the GT3 wheels, so I intend to keep those for rainy trackdays. I looked on Tire Rack, but they only suggest 19" or 20" for my car (997 S, not GT3).
235/40-18 front and 305/35-18 rear, thnx, got it
I decided to go for 18" as I already have a set of 19" GT3 wheels and a set of 19" Lobsters. If Michelin doesn't offer the sizes I need, I'm definitally going for Toyo. I run PS2 on the GT3 wheels, so I intend to keep those for rainy trackdays. I looked on Tire Rack, but they only suggest 19" or 20" for my car (997 S, not GT3).
235/40-18 front and 305/35-18 rear, thnx, got it