18" or 19" rims on GT4
#1
Pro
Thread Starter
18" or 19" rims on GT4
I've read how many people are struggling with putting on 18" or 19" rims.
Currently Im trying to get 18" rims on so I can run some super softs. Have found a few things out so far which I thought I would share...
I tried some Yokohama 18" Advan rims with large barrel intended for 991s'. These do fit over the calipers, but hit the rear suspension toe arms.
These 991 rims are a special shape.
I tried some other regular Yokohama 18" rims with spacers (19 or 21mm)and they clear the toe arms, yay. But don't fit over the calipers properly.
So looking to try the 991 rims with spacers next. Or maybe different offset rims but with the big barrel this may be a big ask.
Not sure if the spacers will have issues with the guards yet.
Currently Im trying to get 18" rims on so I can run some super softs. Have found a few things out so far which I thought I would share...
I tried some Yokohama 18" Advan rims with large barrel intended for 991s'. These do fit over the calipers, but hit the rear suspension toe arms.
These 991 rims are a special shape.
I tried some other regular Yokohama 18" rims with spacers (19 or 21mm)and they clear the toe arms, yay. But don't fit over the calipers properly.
So looking to try the 991 rims with spacers next. Or maybe different offset rims but with the big barrel this may be a big ask.
Not sure if the spacers will have issues with the guards yet.
#3
GT3 player par excellence
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18" on GT4 is trickly
19" fits. question is what tires
19" fits. question is what tires
#5
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18" or 19" rims on GT4
I mounted MPSS to the oem wheels and now need to find track wheels for the Cup 2. It looks like TireRack's reasonably priced and lightweight 20" OZ Leggera HLT should work. Same widths as oem. The 55 front offset will move the wheel out 6mm and the rear is the oem 50. I plan to test fit an oem front with a 5mm spacer to check clearances, unless someone here has already done that.
#6
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18" or 19" rims on GT4
Originally Posted by mooty
18" on GT4 is trickly
19" fits. question is what tires
19" fits. question is what tires
#7
Burning Brakes
Here are Tire Racks current options. http://www.tirerack.com/wheels/resul...s&package=true It Looks like the OZ wheels are 10 inch wide instead of 11, and Tire rack is recommending 285/35-19 rear tires if you go with OZ 19 inch by 10 wheels.
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#8
Here are Tire Racks current options. http://www.tirerack.com/wheels/resul...s&package=true It Looks like the OZ wheels are 10 inch wide instead of 11, and Tire rack is recommending 285/35-19 rear tires if you go with OZ 19 inch by 10 wheels.
The other thing I noticed that some 19" wheel recommendations by tirerack have an offset that push out the fronts by almost 1/2".
#9
Here are Tire Racks current options. http://www.tirerack.com/wheels/resul...s&package=true It Looks like the OZ wheels are 10 inch wide instead of 11, and Tire rack is recommending 285/35-19 rear tires if you go with OZ 19 inch by 10 wheels.
#11
I'd love to switch to 19s (wish it came with those from the factory) if I get a hold of a GT4, but I'd very much want to keep the same overall tire diameter if possible. Partly because I don't want to mess with the gearing, and partly because I don't want the car to ride any lower.
#12
I'd love to switch to 19s (wish it came with those from the factory) if I get a hold of a GT4, but I'd very much want to keep the same overall tire diameter if possible. Partly because I don't want to mess with the gearing, and partly because I don't want the car to ride any lower.
#13
Rennlist Member
Here's the deal guys, 18's can fit, but they require specific offsets and widths.
For example, Finspeed's F14 wheel will fit. He has already confirmed the 18" front wheel clears the 991 GT3 brakes, so they will clear ours.
The rear will fit easily, but requires a 18x10.5" wheel, ET44, if you want to avoid using alot of rear camber to clear the toe-link. The problem is tire sizes, there are currently not any 18" tires with more ideal sizes, which need to be:
245-45-18 and 295-40-18 (or 285-40-18).....these will keep rolling diameters the similar and keep your TC/PSM happy if you keep it on.
I would start asking Nitto and/or Hoosier to make these sizes. It will likely take a year or so, but would be well worth the effort.
For anybody who thinks its too tall of a tire, or the "sidewall is too big"...that's total hogwash. I run 245-40-18 and 275-40-18's on my 987, and they are perfect. I never get any "ice mode" or ABS problems, compared to the fairly regular complaints of those running the 275-35-18 rear. Those sizes provide a much better load rating as well.
285/295-40-18 on the GT4 would be great.
For example, Finspeed's F14 wheel will fit. He has already confirmed the 18" front wheel clears the 991 GT3 brakes, so they will clear ours.
The rear will fit easily, but requires a 18x10.5" wheel, ET44, if you want to avoid using alot of rear camber to clear the toe-link. The problem is tire sizes, there are currently not any 18" tires with more ideal sizes, which need to be:
245-45-18 and 295-40-18 (or 285-40-18).....these will keep rolling diameters the similar and keep your TC/PSM happy if you keep it on.
I would start asking Nitto and/or Hoosier to make these sizes. It will likely take a year or so, but would be well worth the effort.
For anybody who thinks its too tall of a tire, or the "sidewall is too big"...that's total hogwash. I run 245-40-18 and 275-40-18's on my 987, and they are perfect. I never get any "ice mode" or ABS problems, compared to the fairly regular complaints of those running the 275-35-18 rear. Those sizes provide a much better load rating as well.
285/295-40-18 on the GT4 would be great.
#14
Nordschleife Master
18" or 19" rims on GT4
Originally Posted by Mvez
Here's the deal guys, 18's can fit, but they require specific offsets and widths.
For example, Finspeed's F14 wheel will fit. He has already confirmed the 18" front wheel clears the 991 GT3 brakes, so they will clear ours.
The rear will fit easily, but requires a 18x10.5" wheel, ET44, if you want to avoid using alot of rear camber to clear the toe-link. The problem is tire sizes, there are currently not any 18" tires with more ideal sizes, which need to be:
245-45-18 and 295-40-18 (or 285-40-18).....these will keep rolling diameters the similar and keep your TC/PSM happy if you keep it on.
I would start asking Nitto and/or Hoosier to make these sizes. It will likely take a year or so, but would be well worth the effort.
For anybody who thinks its too tall of a tire, or the "sidewall is too big"...that's total hogwash. I run 245-40-18 and 275-40-18's on my 987, and they are perfect. I never get any "ice mode" or ABS problems, compared to the fairly regular complaints of those running the 275-35-18 rear. Those sizes provide a much better load rating as well.
285/295-40-18 on the GT4 would be great.
For example, Finspeed's F14 wheel will fit. He has already confirmed the 18" front wheel clears the 991 GT3 brakes, so they will clear ours.
The rear will fit easily, but requires a 18x10.5" wheel, ET44, if you want to avoid using alot of rear camber to clear the toe-link. The problem is tire sizes, there are currently not any 18" tires with more ideal sizes, which need to be:
245-45-18 and 295-40-18 (or 285-40-18).....these will keep rolling diameters the similar and keep your TC/PSM happy if you keep it on.
I would start asking Nitto and/or Hoosier to make these sizes. It will likely take a year or so, but would be well worth the effort.
For anybody who thinks its too tall of a tire, or the "sidewall is too big"...that's total hogwash. I run 245-40-18 and 275-40-18's on my 987, and they are perfect. I never get any "ice mode" or ABS problems, compared to the fairly regular complaints of those running the 275-35-18 rear. Those sizes provide a much better load rating as well.
285/295-40-18 on the GT4 would be great.