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Good tire sizes? 18" x 10.5" , 18" x 8.5"
I have a set of wheels with the following sizes 18" x 10.5" and 8.5" with normal safe offsets. I wanted to know what tire sizes I should get. Im not going to track the car so I dont necessarily need the widest but I want something that doesnt have a thick profile, will maintain OEM AP1 overall tire/wheel diameter, and most importantly allow me to lower the car 2" all around. I might be going with the BF Goodrich ta kdw (with the flam tread) since it has good reviews and will last me a while.
Any help would be appreicated. :hello: |
you should name the offsets instead of just saying normal safe offset.
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8.5
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61 in the front and 69 in the back.
But in terms of size I wasnt talking width only, I want to know recommended profile size to go along with the width. |
To be as close as possible to the stock circumference:
Front 245/35, 255/35, 265/35, 275/30, 285/30 Rear 265/30, 275/30, 285/30 The closest possible is 245/35 front, and 285/30 rear. Assuming my math is right. |
Originally Posted by wills2k106,Dec 4 2006, 07:17 AM
To be as close as possible to the stock circumference:
Front 245/35, 255/35, 265/35, 275/30, 285/30 Rear 265/30, 275/30, 285/30 The closest possible is 245/35 front, and 285/30 rear. Assuming my math is right. |
What do you guys think about these sizes?
225/35 front 265/35 rear |
Trivium, the tire sizes I gave are for the closest aspect ratio for a given section width to the circumference of the AP1 stockers. I'm sorry but I can't speak for their fitment on the car itself. To keep a similar circumference to stock, which was something you asked for earlier, a 225 front should be a 225/40 and the rear 265/30. People run similar widths to what you are suggesting so they should fit but don't take my word on that part. Hopefully someone more knowledgeable than myself will chime in.
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Ummm I dont think 265/30 exists for a street application and I dont know why you brought it up twice. I appreciate the help though.
Anybody care to share some info? |
You are correct, nobody seems to make a 265/30 for an 18" rim. I thought it was Porsche OE for the rear but that is apparently the 265/35 you suggest my mistake. I only brought it up again because you asked. Along the same lines, if you go with the 225/40 as opposed to the 225/35 over at the Tire Rack you get a alot more choices because that is Porsche OE sized as well. It is also a better match for the circumference of the AP1 fronts as you asked for in the thread starting post. I am surprised though that no one has said anything about the fitment yet.
For your reference, in circumference, a 225/40-18 is .8% larger than the stock front, the 265/35-18 is 2.5% larger. Good Luck. |
ANYBODY else care to voice thier opinion or give some advice?
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i have a ap1 year 2000. i have 18 in ssr wheels. koni adjustable sport shocks with h&r springs which have lowered the car. i run goodyear eagle f1 gs-d3 tires. i have 225/40/18 in front and had 245/40/18 in rear. my front wheel has an offset of +48 and is an 18x8. my rear wheel has an offset of +55 and is an 18x9. the front is fine. no rubbing, looks great. the rear with the 245 never rubbed,ever. when i wore the rears out i went up one size to 255. there is a slight rub when i bottom out the suspension which is almost never. other than that the 255 is as wide as i can go with 18x9 with +55 offset. fronts no problem, but i feel certain that a 235 in front would rub, unless i bought another set of front wheels with a larger offset. i have tracked the car twice and i can definatley use more rubber in the rear and will be buying same wheels i have now but with a larger offset for the rear so i can get 275's on the rear. i will keep the 225's in front. i highly reccomend the koni adjustable sport shocks with the h&r springs. this is a great low-cost, efficient and effective way to drop your s2k and improve the handling dramatically. leee
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