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Mustang Forums
2015+ S550 Mustangs
Drivetrain Modification/Discussion
IRS vs Solid Axle weight comparison
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<blockquote data-quote="BlackBolt9" data-source="post: 14731719" data-attributes="member: 36489"><p>From the 2015 rule book:</p><p></p><p>"Control arms and bushing material are unrestricted, but the location of the cradle cannot be changed in</p><p>relation to the OEM mounting point. The OEM brackets must remain in place and the IRS cradle must</p><p>mount to the chassis using those points in the OEM location. Bushing material for the brackets and</p><p>mounts is free (Aluminum, Delrin, etc.) but the mounts must remain as stock."</p><p></p><p>Of course they don't list the 2015 Mustang in their approved IRS list but I assume that's due to no one running one yet. Maybe we'll have the first one for them to look at???</p><p></p><p>As of right now the car is being built to run in the Trans-Am series which crosses over fairly closely with American Iron, so I assume again that we will run it in American Iron at some point this summer.</p></blockquote><p></p>
[QUOTE="BlackBolt9, post: 14731719, member: 36489"] From the 2015 rule book: "Control arms and bushing material are unrestricted, but the location of the cradle cannot be changed in relation to the OEM mounting point. The OEM brackets must remain in place and the IRS cradle must mount to the chassis using those points in the OEM location. Bushing material for the brackets and mounts is free (Aluminum, Delrin, etc.) but the mounts must remain as stock." Of course they don't list the 2015 Mustang in their approved IRS list but I assume that's due to no one running one yet. Maybe we'll have the first one for them to look at??? As of right now the car is being built to run in the Trans-Am series which crosses over fairly closely with American Iron, so I assume again that we will run it in American Iron at some point this summer. [/QUOTE]
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IRS vs Solid Axle weight comparison
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