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Hello all, first time forum post.
I have 20s front and rear on my 2019 c43. I’m running 285 rear and 245 front. I’m lowered on H&R sport springs as well. Ever since I left the wheel shop, I’ve been rubbing hard on my driver side and I’m slowly screwing my car up. I NEED recommendations to what to do! It’s like the car is heavier on my side and is lower. My passenger rarely rubs. So what should I do?!? The difference in height is clearly visible in the photos I think.
Thank you in advance. Driver side. Fender is being beat. Vs Passenger side.
Too much offset. Your wheels are too far out. Need to roll your fenders or reduce offset. Going to a narrower tire and stretch it on the rim may buy you a little bit, but there'll probably still not be enough clearance for near full compression.
Too much offset. Your wheels are too far out. Need to roll your fenders or reduce offset. Going to a narrower tire and stretch it on the rim may buy you a little bit, but there'll probably still not be enough clearance for near full compression.
I thought that was probably it too, in all honesty, I had the people at the wheel place pick my offset and etc. But I went to check the sticker of the wheel itself and I only have +28? I’ve seen people in the forums talk about 30 to 32.
I thought that was probably it too, in all honesty, I had the people at the wheel place pick my offset and etc. But I went to check the sticker of the wheel itself and I only have +28? I’ve seen people in the forums talk about 30 to 32.
More positive offset means the wheel is further in, not out. I know it feels like the opposite, but the offset specifies the distance from the mounting surface to the centerline of the wheel. So the higher the offset the further in the centerline of the wheel is and therefore it sticks out less. Offset zero means your mounting surface is at the centerline of the wheel. If you add more and more positive offset it moves the wheel farther and farther in, whereas adding more and more negative offset will move it out farther and farther. You also always have to factor in the width of the wheel itself.
Here are a couple of good offset calculators. The second one visualizes the difference in case you have trouble with the abstract numbers. Going to an offset of 30 will move your wheel in by 2 mm. Going to 32 will move it in 4 mm. Now the inner clearance will reduce by the same amount, so at some point it may rub against the strut since your aftermarket wheel is wider than stock. My bad, too, I should have said you have too little offset, not too much.
More positive offset means the wheel is further in, not out. I know it feels like the opposite, but the offset specifies the distance from the mounting surface to the centerline of the wheel. So the higher the offset the further in the centerline of the wheel is and therefore it sticks out less. Offset zero means your mounting surface is at the centerline of the wheel. If you add more and more positive offset it moves the wheel farther and farther in, whereas adding more and more negative offset will move it out farther and farther. You also always have to factor in the width of the wheel itself.
Here are a couple of good offset calculators. The second one visualizes the difference in case you have trouble with the abstract numbers. Going to an offset of 30 will move your wheel in by 2 mm. Going to 32 will move it in 4 mm. Now the inner clearance will reduce by the same amount, so at some point it may rub against the strut since your aftermarket wheel is wider than stock. My bad, too, I should have said you have too little offset, not too much.
I understand, this was a great explanation. Thank you. Honestly, after just looking at my wheels this morning, I don’t think tires will make a difference. It’s these H&R springs. I’m gonna have to go stock springs in the front to stop hitting my fender. Or I’m gonna have to cut my springs to sit better and not as low.
I understand, this was a great explanation. Thank you. Honestly, after just looking at my wheels this morning, I don’t think tires will make a difference. It’s these H&R springs. I’m gonna have to go stock springs in the front to stop hitting my fender. Or I’m gonna have to cut my springs to sit better and not as low.
Yeah, the regular coupe chassis isn't made to accommodate large wheels. It doesn't have the wider track and fenders that the C63 coupe has. Also, wheel and suspension changes shouldn't be taken lightly. Your next issue is the scrub radius that is often overlooked when making aftermarket changes to the suspension and wheels. Changing it relative to stock will potentially make your car drive worse. Check out the link below, which explains what the scrub radius is and how it affects things.
Yeah, the regular coupe chassis isn't made to accommodate large wheels. It doesn't have the wider track and fenders that the C63 coupe has. Also, wheel and suspension changes shouldn't be taken lightly. Your next issue is the scrub radius that is often overlooked when making aftermarket changes to the suspension and wheels. Changing it relative to stock will potentially make your car drive worse. Check out the link below, which explains what the scrub radius is and how it affects things.
Wow, this is all so crazy to me Imao. I've decided l'll just try to keep the suspension and see if I can put a couple rubber spring spacers in. I literally just want to even my driver height to my passenger side. If I can do that, I won't hit my fender anymore. Just need a little more clearance. Yes it's a horrible fix, but i don't know what else to do. Not many other suspension options.
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