Mk4Gaz Posted August 4, 2019 Share Posted August 4, 2019 Hi guys, I've done a bit of searching around, but need some fitment gurus to help me out if poss? Think of changing my wheels, and need to know if they're likely to cause fitment issues. Currently lowered circa 25-30mm, with UK spec brakes. Stock arches, with a very slight roll on the rear. New wheels are 19x9.5 et 20, and 19x8.5 et20. Quote Link to comment Share on other sites More sharing options...
mattdavies Posted August 5, 2019 Share Posted August 5, 2019 Depending on the tyres you run . Rear 255/265 should be good Front 235 should be good Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted August 5, 2019 Author Share Posted August 5, 2019 Depending on the tyres you run . Rear 255/265 should be good Front 235 should be goodCheers matey, I'll actually be running 245f and 265r, so will hope for the best! Quote Link to comment Share on other sites More sharing options...
ShawnPreece Posted August 5, 2019 Share Posted August 5, 2019 (edited) If you let me know your current setup size we can work out how much extra/less clearance you have on each wheel but gauging it against a stock 17 inch setup this is the difference (guessing 35 as a profile for your new tyres)... Fronts... Stock - Proposed Wheel Diameter: 643.3mm - 654.1mm Circumference: 2021mm - 2054.9mm Poke: 51.6mm - 88mm Inset: 151.6mm - 128mm Ride Height Gain: 0mm - 5.4mm Arch Gap loss: 0mm - 5.4mm Compared to stock wheels, the proposed wheel will have an inner rim which is 23.7mm further away from the suspension strut. The outer rim will poke out 36.4mm more than Stock. Rears... Stock - Proposed Wheel Diameter: 635.8mm - 668.1mm Circumference: 1997.4mm - 2098.9mm Poke: 70.7mm - 100.7mm Inset: 170.7mm - 140.7mm Speedo Error: 0% - -4.83% Reading at 30mph: 30mph - 28.55mph Reading at 60mph: 60mph - 57.1mph Ride Height Gain: 0mm - 16.15mm Arch Gap loss: 0mm - 16.15mm Compared to stock wheels, the proposed wheel will have an inner rim which is 30mm further away from the suspension strut. The outer rim will poke out 30mm more than Stock. If you look at post 4 on this link you will see good pictures of Nics car showing his wheel and tyre sizes and offsets for you to compare against in a better visual way. Your proposed wheels compared to Nics setup is below... Fronts... Nic - Proposed Wheel Diameter: 653.2mm - 654.1mm Circumference: 2052.1mm - 2054.9mm Poke: 82.3mm - 88mm Inset: 146.3mm - 128mm Ride Height Gain: 0mm - 0.45mm Arch Gap loss: 0mm - 0.45mm Compared to Nics wheels, the proposed wheel will have an inner rim which is 18.4mm further away from the suspension strut. The outer rim will poke out 5.6mm more than Nics. Rears... Nic - Proposed Wheel Diameter: 656.7mm - 668.1mm Circumference: 2063.1mm - 2098.9mm Poke: 95mm - 100.7mm Inset: 159mm - 140.7mm Ride Height Gain: 0mm - 5.7mm Arch Gap loss: 0mm - 5.7mm Compared to Nics wheels, the proposed wheel will have an inner rim which is 18.4mm further away from the suspension strut. The outer rim will poke out 5.6mm more than Nics. Because of Nic having rolled arches and your setup sticking out 5.6mm more it might be very close and worth measuring or seeing if the same wheel is available in an offset to bring the wheel in 5-10mm but is more accurate to compare against your current wheel setup if you let us know the sizes. As for tyre sizes though yes 245 on a 8.5j rim is fine for the front and 265 on a 9.5j rim for the back will fit fine. More info on how to work it out can be found here Let me know if you need a hand Edited August 5, 2019 by ShawnPreece (see edit history) Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted August 5, 2019 Author Share Posted August 5, 2019 If you let me know your current setup size we can work out how much extra/less clearance you have on each wheel but gauging it against a stock 17 inch setup this is the difference (guessing 35 as a profile for your new tyres)... Fronts... Stock - Proposed Wheel Diameter: 643.3mm - 654.1mm Circumference: 2021mm - 2054.9mm Poke: 51.6mm - 88mm Inset: 151.6mm - 128mm Ride Height Gain: 0mm - 5.4mm Arch Gap loss: 0mm - 5.4mm Compared to stock wheels, the proposed wheel will have an inner rim which is 23.7mm further away from the suspension strut. The outer rim will poke out 36.4mm more than Stock. Rears... Stock - Proposed Wheel Diameter: 635.8mm - 668.1mm Circumference: 1997.4mm - 2098.9mm Poke: 70.7mm - 100.7mm Inset: 170.7mm - 140.7mm Speedo Error: 0% - -4.83% Reading at 30mph: 30mph - 28.55mph Reading at 60mph: 60mph - 57.1mph Ride Height Gain: 0mm - 16.15mm Arch Gap loss: 0mm - 16.15mm Compared to stock wheels, the proposed wheel will have an inner rim which is 30mm further away from the suspension strut. The outer rim will poke out 30mm more than Stock. If you look at post 4 on this link you will see good pictures of Nics car showing his wheel and tyre sizes and offsets for you to compare against in a better visual way. Your proposed wheels compared to Nics setup is below... Fronts... Nic - Proposed Wheel Diameter: 653.2mm - 654.1mm Circumference: 2052.1mm - 2054.9mm Poke: 82.3mm - 88mm Inset: 146.3mm - 128mm Ride Height Gain: 0mm - 0.45mm Arch Gap loss: 0mm - 0.45mm Compared to Nics wheels, the proposed wheel will have an inner rim which is 18.4mm further away from the suspension strut. The outer rim will poke out 5.6mm more than Nics. Rears... Nic - Proposed Wheel Diameter: 656.7mm - 668.1mm Circumference: 2063.1mm - 2098.9mm Poke: 95mm - 100.7mm Inset: 159mm - 140.7mm Ride Height Gain: 0mm - 5.7mm Arch Gap loss: 0mm - 5.7mm Compared to Nics wheels, the proposed wheel will have an inner rim which is 18.4mm further away from the suspension strut. The outer rim will poke out 5.6mm more than Nics. Because of Nic having rolled arches and your setup sticking out 5.6mm more it might be very close and worth measuring or seeing if the same wheel is available in an offset to bring the wheel in 5-10mm but is more accurate to compare against your current wheel setup if you let us know the sizes. As for tyre sizes though yes 245 on a 8.5j rim is fine for the front and 265 on a 9.5j rim for the back will fit fine. More info on how to work it out can be found here Let me know if you need a hand Legend Shawn, thanks for that. Current wheels are 19x8.5 et25 and 19x9.5 et25, so the new wheels will likely stick out further by 5mm all round. The thing I was most worried about, is cat hing the arches. I suspect the fronts will be fine, but I have a suspicion that the rears will need more rolling to clear. Annoying really, because I only resprayed the car a year ago! Quote Link to comment Share on other sites More sharing options...
Dim Sum Posted August 5, 2019 Share Posted August 5, 2019 Gary my wheels on the supra is this fitment. Front: 19×9.5 +22mm 5×114.3 (concave face) Rear: 19×10.5 +22mm 5×114.3 (concave face) I had it slightly rolled and it fit fine. So not sure if this information is any help at all. I can send you pics over if you want Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted August 5, 2019 Author Share Posted August 5, 2019 Gary my wheels on the supra is this fitment. Front: 19×9.5 +22mm 5×114.3 (concave face) Rear: 19×10.5 +22mm 5×114.3 (concave face) I had it slightly rolled and it fit fine. So not sure if this information is any help at all. I can send you pics over if you wantThat's encouraging, cheers K [emoji106] Quote Link to comment Share on other sites More sharing options...
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