Part 7: My 76 Mazda RX-5 Cosmo Restoration - Intake and Exhaust Porting
Has it been nearly a month since my last episode? Wow, time does indeed fly. I've been quite busy preparing to build the engine. So in part 7, I cover the intake and Exhaust porting. The engine is being built with GSL-SE 6 port plates and the Cosmo rotor housings as the basis for a 6 port turbo setup. This port job is fairly conservative, only opening up the primary ports a little and bringing the Exhaust ports close to 2nd gen RX-7 specs. The goal is to maintain fuel economy, low and midrange torque, and idle quality. This episode covers everything involved in porting including: marking out the new ports, grinding the port shape, smoothing the bowls, smoothing port to runner transitions, smoothing the runners, grinding and blending the Exhaust ports.
Complete Rotary 13B Rebuild - Engine (Part 3)
Do-it-Yourself knowledge to rebuild the popular 13B rotary engine for a Series 6 Mazda RX7. This part will tackle the assembly of the engine. This includes preparation and fitting of seals, gaskets into rotor housing and end plates. This will show you how to assemble the engine block together correctly with the rotors and apex seals to the manufacturers tolerances and specifications. The final assembly of the engine is completed with standard tools and leaves them ready for the final part 4 'Setting the end-float'. If you could please take the time to Subscribe Like and Share my video to spread the word, I would appreciate it. I also wanted to start getting some videos up putting a Veilside Fortune Bodykit on my Rx7 for viewers over the world so any donations would be much appreciated to get this project up and away. Link is on right hand side on main channel page or Link is http://www.gofundme.com/8oc9ck Thanks for your time
BDC Porting - Front Secondary w/ Bridgeport
BDC Motorsports http://www.bdcmotorsports.com Quick video showing a half-bridgeport plus street port I performed on a Series 5 front iron housing. Video taken in summer '04.
How To Rebuild an Port a Rotary Engine : Part 5
Please vote for my video http://on.fb.me/HEooS1 In this video I get my turbo's cleaned up and ready to put back together, and I start porting the center iron.