NASA TT5 clarification
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NASA TT5 clarification
Hey, hoping some of you guys might have insight to this just to confirm what I read, got some conflicting info. I'm building my car for track, primarily TT5 and some hill climbs, but per the following rule, essentially I can't do any kind of camber adjustment besides the offset front control arm bushings, as everything else is roll center correction or has spherical bushings etc. Also the only rear toe link upgrade i could do for the rear is like a Hardrace toe arm
4) One means of aftermarket camber adjustability per wheel by replacement of a single
suspension component not requiring modifications to the spindle/knuckle or mounting points (in
addition to camber plates) is permitted without a Modification Factor. Also, rear suspension link
replacement or modification for toe adjustability is permitted without a Modification Factor. Any
additional non-OEM or modified control arms or links beyond the above shall be assessed a
Modification Factor. (Note: Section 6.1.9.6 below still applies)
5) Panhard rods, watts links, and torque arms may be added, replaced, or modified, and a
Modification Factor will be assessed. (Subframe connectors beneath the floor are permitted with
the addition of a torque arm.)
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,
Super Touring 5-6 Rules 2026 v9.2 pg 13
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).
suspension component not requiring modifications to the spindle/knuckle or mounting points (in
addition to camber plates) is permitted without a Modification Factor. Also, rear suspension link
replacement or modification for toe adjustability is permitted without a Modification Factor. Any
additional non-OEM or modified control arms or links beyond the above shall be assessed a
Modification Factor. (Note: Section 6.1.9.6 below still applies)
5) Panhard rods, watts links, and torque arms may be added, replaced, or modified, and a
Modification Factor will be assessed. (Subframe connectors beneath the floor are permitted with
the addition of a torque arm.)
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,
Super Touring 5-6 Rules 2026 v9.2 pg 13
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).
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thomsbrain
S2000 Brakes and Suspension
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Feb 13, 2014 11:53 AM