This 2001 Mazda FD RX-7 is called RHONDA for a reason. Under the hood sits a Honda K20A inline-four. It was built by BYP Racing with help from Impossible Fabrication. With a stock bottom-end, the engine produces 435 horsepower on E85 fuel and 17 psi of boost thanks to a Garrett GTX3076R turbocharger. The engine was installed using a modified subframe with K-series mounts and the steering rack was moved forward 20 mm for clearance. Behind the engine sits a S2000 transmission via a K24 adapter that was modified to used with the K20A. Thanks to the engine change the RX-7 lost 88 lbs in the front for a total weight of 2,621 lbs on a 1/2 tank of fuel and a weight balance of 48.8% front and 51.2% rear. The best pass for the car is a 11.13 at 133 mph.
Source: BYP Racing FB (build album) and Fullboost
How much trouble would it be to swap a mazda 2.5 inline four into a second generation RX7? would the transmissions just mate up?
Is that engine the L series https://en.wikipedia.org/wiki/Mazda_L_engine
Did you use a custom wire harness… who did you go to or how did you do it.
Is there a contact I can reach ? Looking to do the same swap
Thank you
Hi Chris. Your best bet is to contact BYP Racing and Development who built it.
Thank you !!!