Matth3wAJ Posted October 24, 2019 Share Posted October 24, 2019 (edited) I am having a custom eccentric bushing made for the front knuckles to avoid the penalty for modifying the control arm AND bushing. As I read the rules it actually seems to not incur a penalty. The key is the control arms, camber arms/links, pan hard bars, watts links, torque arms, aren’t being modified here. Is an eccentric bushing (according to the builder) added to a knuckle falling into this no modification: “Adjustable plates, shims, and eccentric bolts and bushings for camber/caster adjustment are not assessed a Modification Factor.” I'm in section 6.1.9 Edited October 27, 2019 by Matth3wAJ Word clarification Quote Link to comment Share on other sites More sharing options...
f1honda Posted October 24, 2019 Share Posted October 24, 2019 If you're talking about the item circled in red, wouldn't that be offset bushing and not eccentric bolt Quote Link to comment Share on other sites More sharing options...
Matth3wAJ Posted October 26, 2019 Author Share Posted October 26, 2019 Bad wording but wouldn’t it be an eccentric bushing? For camber adjustment? Quote Link to comment Share on other sites More sharing options...
National Staff Greg G. Posted October 28, 2019 National Staff Share Posted October 28, 2019 I think that this would apply: 6) Non-OEM metallic and/or spherical design replacement suspension bushing modifications on control/camber/toe arms/links, panhard rods, watts links, and torque arms shall be assessed a Modification Factor which is in addition to and additive to #4 & #5 above. (Includes replaced, modified, adjustable, or altered control arm ball joints for roll-center correction or camber/caster adjustment. Note: ball joint may be welded to the spindle for added strength). They are non-OEM bushings, and they are metallic. Quote Link to comment Share on other sites More sharing options...
f1honda Posted October 30, 2019 Share Posted October 30, 2019 it can be a spacer since there's no revolving axle, which is the definition of a bushing? Quote Link to comment Share on other sites More sharing options...
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