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Ryan’s RX-4 has undergone a few changes since we last saw it. Primarily the 13B rotary engine now features a Promaz billet front plate as well as a FuelTech FT500 computer. The guys were out testing on lower boost where the Mazda ran a personal best pass.
Mazda RX-4 coupe
Promaz 13B rotary engine bridge ported
Promaz billet front plate, billet water pump bridge-ported
Garrett GTX42R turbocharger
FuelTech FT500, E85 fuel
Samsonas sequential gearbox
Direct Clutch Services twin plate
Built and tuned by Promaz | www.PROMAZ.com.au