Quote:
Originally Posted by Scargoes
To figure out why the offset is different, you need to look at the OD of the 18" and 20" setup. If they are the same OD the offset would be the same for both. But if the OD is different, the change in offset will help maintain the desired scrub radius.
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Quote:
Originally Posted by PDXSSCE
If wheel diameter doesn't affect offset, why does tire diameter affect it? Is it a matter of clearance?
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The 18" setup's tires (245/50-18) have an OD of 27.6457".
The 20" setup's tires (245/40-20) have an OD of 27.7165", or about 0.07" different from the 18" setup.
That's pretty close.
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2017 Camaro 1SS, M6, Hurst shifter, Hyper Blue, NPP, Gray Split Spoke Wheels
Best 1/4 Mile: 12.24 @ 115.9 mph