Dyno Test: Old v New Rotax Restrictor

A new exhaust restrictor plate with a slightly smaller hole is being used on the Rotax MAX engine in Karting Australia’s 125cc TaG Restricted classes this year.

In this week’s Power Republic video, Derek throws an engine on the dyno and does a direct comparison of last year’s restrictor to this years and lets the wiggly lines of the dyno run tell the tale.



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