better wheels, lowered, with good DD capabilties? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

CB390248 · 01-01-2014, 07:57 PM

Please correct me if I am wrong. If I get 18" wheels with a coil-over set up that lowers the car 1" the wheel wells would lose a lot of gap but the car would only be lower 0.5" (to maintain clearance). Right? I essentially want the car with no change in clearance but with a better wheel well look because the car is my DD.

Gunman · 01-01-2014, 08:02 PM

If you go 1" larger in overall dia, ie diameter of the tire, you're speedo will be off quite a bit. Generally you try to maintain the overall dia, if you go larger with the wheel dia, you go with a lower profile tire, to maintain the overall dia.

kALMIGHTY · 01-01-2014, 08:09 PM

^ Basically what he said.

It depends on how big the tires are that you put on 18" wheels. So basically, the height of the sidewall will be a big factor.
Keep the overall tire diameter the same as stock, otherwise your speedometer is going to be off. You could be going like 5 mph slower/faster than what the speedometer is actually telling you.
And if you do keep the overall diameter the same, then a 1" drop on the coilovers will also mean 1" less clearance.

01-01-2014, 07:57 PM	#1
CB390248 Senior Member Join Date: Jun 2013 Drives: Asphalt FR-S Location: Eastern PA Posts: 224 Thanks: 5 Thanked 36 Times in 17 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	better wheels, lowered, with good DD capabilties? Please correct me if I am wrong. If I get 18" wheels with a coil-over set up that lowers the car 1" the wheel wells would lose a lot of gap but the car would only be lower 0.5" (to maintain clearance). Right? I essentially want the car with no change in clearance but with a better wheel well look because the car is my DD.

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01-01-2014, 08:09 PM	#3
kALMIGHTY Banned Join Date: Nov 2012 Drives: TRD Ultramarine '13 Location: Calgary Posts: 1,377 Thanks: 190 Thanked 766 Times in 347 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	^ Basically what he said. It depends on how big the tires are that you put on 18" wheels. So basically, the height of the sidewall will be a big factor. Keep the overall tire diameter the same as stock, otherwise your speedometer is going to be off. You could be going like 5 mph slower/faster than what the speedometer is actually telling you. And if you do keep the overall diameter the same, then a 1" drop on the coilovers will also mean 1" less clearance.

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