Wheel Fit, Help!
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Newbie
Joined: May 2005
Posts: 19
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From: Washington, Missouri
Wheel Fit, Help!
I know there are other topics about this but I have read those posts and 18inch wheels, when dropping is done, seems to get different results. I am looking at getting a set of Enkei RZ-5 18x8.5 +35mm and I want to use 245/40/18 tires because I want the wheels and tires to look flush.
From my calculations, this setup will actually result in a total wheel height of 25.72inches and the OEM is 25.32inches. This means that the car will sit taller by about a 1/4" and the tire will be closer to the finders by 1/4". This would be 1/2 the diameter difference. My formula for calculating this is below
I do not like the idea of my car sitting any taller off of the ground so I am also concidering using some lowering springs. Most people seem to be using a 2" front and 1" rear lowering but this would cause rubbing with 245/40/18 tires so I do not want to go this route as I do not want to also have to mess with the fenders.
With the OEM springs, the front fender on the EVO has a bigger gap than the back so I was thinking, couldn't I just use 1" lowering springs only in the front or would having aftermarket fronts and OEM back be a bad move? Wouldn't this still allow for plenty of clearence under any driving condition and I would think that it would make the front and rear gap look about the same also? The gap would not be as small as if I rolled the fenders and used a full set of Teins but I don't want to have to do this. I also have a CF APR Performance front wind splitter so I don't want the front to get too low and scrape.
Please, poke holes in anything I have wrong or that I am trying to calculate here. Thanks!
Wheel/Tire Calculations:
OEM 245/45/17
245mm x .45 = 105.75mm or 4.16 inches
(4.16 x 2) + 17 = 25.32
245/40/18
245mm x .40 = 98mm or 3.86 inches
(3.86 x 2) + 18 = 25.72
From my calculations, this setup will actually result in a total wheel height of 25.72inches and the OEM is 25.32inches. This means that the car will sit taller by about a 1/4" and the tire will be closer to the finders by 1/4". This would be 1/2 the diameter difference. My formula for calculating this is below
I do not like the idea of my car sitting any taller off of the ground so I am also concidering using some lowering springs. Most people seem to be using a 2" front and 1" rear lowering but this would cause rubbing with 245/40/18 tires so I do not want to go this route as I do not want to also have to mess with the fenders.
With the OEM springs, the front fender on the EVO has a bigger gap than the back so I was thinking, couldn't I just use 1" lowering springs only in the front or would having aftermarket fronts and OEM back be a bad move? Wouldn't this still allow for plenty of clearence under any driving condition and I would think that it would make the front and rear gap look about the same also? The gap would not be as small as if I rolled the fenders and used a full set of Teins but I don't want to have to do this. I also have a CF APR Performance front wind splitter so I don't want the front to get too low and scrape.
Please, poke holes in anything I have wrong or that I am trying to calculate here. Thanks!
Wheel/Tire Calculations:
OEM 245/45/17
245mm x .45 = 105.75mm or 4.16 inches
(4.16 x 2) + 17 = 25.32
245/40/18
245mm x .40 = 98mm or 3.86 inches
(3.86 x 2) + 18 = 25.72
Newbie
Joined: Jul 2006
Posts: 20
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From: Atlanta
rz-5 and tein s tech lowering springs
I have the 18" RZ-5 wheels, Falken Azenis 245/40/18 tires and Tein S Tech lowering springs. No rubbing under normal conditions, however if I push the car to the extreme in a corner it compresses the shock completely it does rub a tad. I really have to push to encounter the rubbing, and its only on the plastic not the fender. I'm loving the set up.
