Members Michael G. Posted November 5, 2017 Members Share Posted November 5, 2017 2018 GTS Rules are posted at www.nasaproracing.com and linked to through the GTS site as well. The only significant change is the cc limit in GTS 4 - up to 4950 cc. There is also minor editing in wording on the dyno impound protocol. Remember that the dyno compliance is ultimately judged by the GTS / race officials and the 10% variance is to be used as a quide, not a hard reference. All of the changes marked in red. As mentioned above - overall rules stay the same for the 2018. Michael G. GTS Nat Dir. Link to comment Share on other sites More sharing options...
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