When this 2004 Mazda RX-8 rolled out of the factory it was powered by a 1.3 L 13B-MSP 2-rotor engine. However the owner decided to swap that for a 2.0 L K20Z4 inline-four from a 2007–2010 Honda Civic Type R. The engine makes 360 hp (366 km) and 245 lb-ft (333 Nm) thanks to 720 cc injectors and an Eaton TVS1320 supercharger from an Audi 3.0 L TFSI V6. Slight more than the rotary’s 197 horsepower and 164 lb-ft of torque and resulted in the car weighing 3086 lb (1400 kg) with a bias of 52% front and 48% rear. Enjoy the supercharger’s whine in the videos below.
Source: RX8K20K FB page and Wójcikow_sky R via Piotr
awesome… a smart move, not using the Mazda Sky Active motor (which, according to blogs, starts self destructing at 90K miles)
Check what has changed recently!
Thanks for sharing. Congrats on the project! It looks and sounds great.
What mount you’ve used for the motor? And does stock rx8 gearbox handle the power? I’ve asked the same thing on the instagram as well.
The owner told me custom. He says the transmission does hold up but he upgraded to a kevlar clutch and pressure plate from the Mazda MPV diesel.
There is also a kit available https://pmcmotorsport.com/swap-honda-k-mazda-rx8-luk.html
New look and exhaust sound 🙂
Thanks for the update. You’ve done a great job. Really sounds good.
Damn I would buy one of these for sure if they made them like this from the factory!