Will this fit? (width, offset and tire size Qs)

[Ad8707]

Originally Posted by ill86

That fitment is very aggressive.
50 & 63mm outward vs oem spec.
Inner clearance not an issue.
Major camber, roll and pull recommended for fitment.

I wouldn't run that without an over-fender kit.

Yeah I was just trying get rims from local sale and he was selling them cheap.
The offset kinda killed it for me ...if he only had the 35 offset

Thanks though

[Ad8707]

How about going 16 but wide with just a bit more sidewall..anybody thinking of doing these

[Maddjester]

Noob looking for some friendly advice on tire + wheel sizing:

note: I'm planning to drop my FRS 1 inch on springs

1) Wheels - I'd like the same size on all 4 wheels and i'm choosing between these 2 sizes
18x8.5
18x9

I know they have different offsets but which will be closer to an "ideal" fit. Does it even matter considering there are apparently ways to adjust the fitting? (spacers, etc stuff i dont know much about)

2) Tires
I understand tires can be stretched with the potential risk of safety/performance (i'm not trying to dredge that argument up) but for the two sizes above what are the ideal tire sizes I should try to find? ie. 225 vs 245 vs 235 maybe?

3) Are these wheels/tires so large (particularly for the front) that the stock drivability of the car is highly impacted? I only know how the car feels like in stock form right now.

Thanks for all the great info in support of the less informed community

[ill86]

Originally Posted by Maddjester

Noob looking for some friendly advice on tire + wheel sizing:

note: I'm planning to drop my FRS 1 inch on springs

1) Wheels - I'd like the same size on all 4 wheels and i'm choosing between these 2 sizes
18x8.5
18x9

I know they have different offsets but which will be closer to an "ideal" fit. Does it even matter considering there are apparently ways to adjust the fitting? (spacers, etc stuff i dont know much about)

2) Tires
I understand tires can be stretched with the potential risk of safety/performance (i'm not trying to dredge that argument up) but for the two sizes above what are the ideal tire sizes I should try to find? ie. 225 vs 245 vs 235 maybe?

3) Are these wheels/tires so large (particularly for the front) that the stock drivability of the car is highly impacted? I only know how the car feels like in stock form right now.

Thanks for all the great info in support of the less informed community

A brief reply from my phone. I apologize for not giving a lengthy reply.

Wheel width: choose your wheel width based on the tire you want to use. In other words, if you want to run a 215, don't buy a 9" wide wheel it's unnecessary weight.

215, 225, 235, 245 all fit an 8-8.5" wheel fine.

A 9-10" wheel is not necessay unless running 255+.

Too much wheel (width/weight) and too much tire will "ruin" the nimble feel of the car. Street application would not require more than 225 at stock power levels.

Track work is another story. You are balancing grip for weight and driveabilty.

[87Turbo]

17x8 +35 how will they look, lowered on KW v3s???

[five-0]

for you wheel guru's, i have been searching for a couple days and have made a final choice on a set of wheels. the front wheels are 18 x 8.5 (5 x100) with a +35 offset. the rear is 18 x9.5 with a +40 offset. any recommendations on tire size? and will there be any issues with fitting these wheels. i would prefer not to stretch the tires..all suggestions and advice is appreciated....

[ill86]

Originally Posted by five-0

for you wheel guru's, i have been searching for a couple days and have made a final choice on a set of wheels. the front wheels are 18 x 8.5 (5 x100) with a +35 offset. the rear is 18 x9.5 with a +40 offset. any recommendations on tire size? and will there be any issues with fitting these wheels. i would prefer not to stretch the tires..all suggestions and advice is appreciated....

Yep, they will fit.
Front size 235-245
Rear size 255-265

[five-0]

Originally Posted by ill86

Yep, they will fit.
Front size 235-245
Rear size 255-265

thanks....

[ayau]

What would be the pros and cons between the CE28N 17x7.5 +44mm and +50mm offsets? I'm not concerned about looks as I'm more concerned potential rubbing, performance benefits, etc.

[JACK 8URT0N]

I have 17x7.5 te37 +48 and they have caused me no problems with rubbing. I think someone on here figured out the sweet spot is 17x9 +35 for perfect flush fitment.

[ayau]

Originally Posted by JACK 8URT0N

I have 17x7.5 te37 +48 and they have caused me no problems with rubbing. I think someone on here figured out the sweet spot is 17x9 +35 for perfect flush fitment.

thanks! is it pretty close to the OEM fitment?

i'm not going for the flush fitment as you can tell by going with 17x7.5 wheels. i'm guessing the 50mm offset would give me the closer to OEM fitment? they're 0.5 wider than OEM wheels but are 2mm closer towards the inside of the car. can you even compare offsets of 2 different wheels?

[2point0]

Yes, very close to OEM. I believe 53mm on a 7.5" width would place the outside edge at the same point. Yours will stick out 3mm on the outside and 9mm on the inside, vs. stock. Plenty of room.

[Mark Slide Squad]

Originally Posted by ayau

thanks! is it pretty close to the OEM fitment?

i'm not going for the flush fitment as you can tell by going with 17x7.5 wheels. i'm guessing the 50mm offset would give me the closer to OEM fitment? they're 0.5 wider than OEM wheels but are 2mm closer towards the inside of the car. can you even compare offsets of 2 different wheels?

You can't compare offsets if the rims are different widths. For example, a "zero" offset wheel would have the hub mounting surface of the wheel (the face that goes against the brake disk face) centered perfectly in relation of the width of the wheel. So for example, on a 7" wide wheel, 3.5" would be the theoretical center point where offset is called out from. A positive offset means that the hub mounting surface is pushed toward the outside face of the wheel, which means the wheels are pushed in more toward the suspension. A negative offset means that the hub mounting surface is more toward the inside face of the wheel, which pushes the wheel away from the suspension more (hellaflush! haha). So for example, if a 7" wide wheel has an offset of +40mm, that means the hub mounting surface is 40mm off perfect center (3.5") of the 7" width in the direction toward the outside face of the wheel. Let's compare a 7.5" wide wheel with the same 40mm offset. The perfect center of the 7.5" wide wheel is going to be 3.75" from the edge of the wheel, not 3.5" like the 7" wide. This means that you will have more of a "lip" on the 7.5" wheel, by .25" or roughly 6mm in metric. I hope all this makes sense.
Check out this illustration.

[ayau]

Originally Posted by Mark Slide Squad

You can't compare offsets if the rims are different widths. For example, a "zero" offset wheel would have the hub mounting surface of the wheel (the face that goes against the brake disk face) centered perfectly in relation of the width of the wheel. So for example, on a 7" wide wheel, 3.5" would be the theoretical center point where offset is called out from. A positive offset means that the hub mounting surface is pushed toward the outside face of the wheel, which means the wheels are pushed in more toward the suspension. A negative offset means that the hub mounting surface is more toward the inside face of the wheel, which pushes the wheel away from the suspension more (hellaflush! haha). So for example, if a 7" wide wheel has an offset of +40mm, that means the hub mounting surface is 40mm off perfect center (3.5") of the 7" width in the direction toward the outside face of the wheel. Let's compare a 7.5" wide wheel with the same 40mm offset. The perfect center of the 7.5" wide wheel is going to be 3.75" from the edge of the wheel, not 3.5" like the 7" wide. This means that you will have more of a "lip" on the 7.5" wheel, by .25" or roughly 6mm in metric. I hope all this makes sense.
Check out this illustration.

what do you mean that you can't compare the two wheels if they're different widths? i believe you can at least get the measurements on how much wider the ce28n is on the inside and outside compared to the OEM 7 inch wheel. as long as my algebra is correct, i calculated that the 7.5 inch wheel will be 4.35mm wider on the outside and 8.35 wider on the inside. 4.35mm + 8.35mm = 12.7mm = 0.5 inch.

here's how i calculated it.

to keep things simple, i converted both wheels to mm.

OEM 7 in. = 177.8mm
CE28N 7.5 in. = 190.5mm

the two wheels are 7.5 in. + 50mm and 7 in. + 48mm.

center lines of both wheels:
OEM = 88.9mm
CE28N = 95.25mm

add the offsets (mounting location):
OEM = 88.9mm + 48mm = 136.9mm
CE28N = 95.25 + 50mm = 145.mm

we now know where the hub is in relation to the wheel per the above calculation.

take the total width subtracted by the mount locations to get the distance from the mount location to the outside wheel.

OEM = 177.8mm - 136.9mm = 40.9mm
CE28N = 190.5mm - 145.25mm = 45.25mm

the difference between the two numbers will tell you how much wider the ce28n is when it's mounted to the hub.

correct me if i'm calculating this completely wrong.