623 rwhp *actual 10,300 rpm* 4-rotor Mazda Rx7 Dyno naturally aspirated. Defined Autoworks

This was done at the end of last season racing in 2021, the engine has gone 8 YEARS of hard racing. Get to hear actual true honest 10,300 rpm. Just wanted to test the new carbon fiber airbox and revisit the "high" power short intake runners. It made more than I expected and this was only two pulls with no fine tuning at all. Certainly has more in it, possibly 650+ rwhp. Honest 93 pump gas that I get from any station. Defined Autoworks, Logan Carswell (owner/builder).

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