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How to build a P-port RX8 rotary engine

www.rotaryeng.net


 


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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.





Mazda rx-7, engine 13B, Big Street Port. Compression test, part 2.
Raw video. Please bare with us for now





*13B DOO* 13B ROTARY-POWERED SEADOO JETSKI
A dream project fifteen months in the making. Stay tuned for launch... coming 2011...





Streetporting a Rotary Engine
I was just sitting at home so I made a video just describing what is done when streetporting a rotary engine.





Wankel engine and Quasiturbine
motory s rotačními písty





RE雨宮 GT300選手権専用「20B Peripheral Port Engine」 完全バラし!!vol.2





Turbocharged RX-8 engine teardown and rebuild
http://blackhaloracing.com/ With three days to pull the engine, rebuild it and reinstall, is Charles R Hill from Black Halo Racing (BHR) up to the task?! View the video to see what we find when the engine with 51,000 miles is pulled. More details and photos of this rebuild can be seen at: http://www.rx8club.com/showthread.php?t=148395 PS: I admit I didn't hold the camera stable enough for the first day of footage. Gave me a damn headache editing the footage.





Rotary (Wankle Engine) in a Velocity SE Aircraft
Mazda 13b turbo block rotary with Mistral intake, RWS Redrive, EM2, EC2 ported with a medium street port





13B Peripheral Port LOUD!!!
Some guys 13B Carbbed Peri-port rotary starting and revving at our mazda car show. Car is a 83 Mazda GLC. It was VERY VERY LOUD in person. I couldn't even hear him hitting the rev limiter





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.





Building a 13B-REW
This is how a 13B engine is brought to life from the Mazda factory. Courtesy of RE4life.com "Mazda Factory's veteran Engineer, Mr. Uchitani shows how Rotary Engines are assembled. Amazing that each RE has been built by hand until 2003!"





Part 12: 13B Rotary Engine Rebuild - My 76 Mazda RX-5 Cosmo Restoration
Just as I promised last episode, it is finally time to build the engine! Part 12 of my RX-5 Cosmo restoration covers the entire process of building the 6 port 13B Mazda rotary engine. While this engine is a hybrid of GSL-SE RX-7 and Cosmo parts, the process is the same for any rotary from a 12A to a 13B NA, 13B turbo, 13B-REW or any other variant of the 13B. This video shows the whole process of the engine build, starting from measuring the rotors and covering everything else including clearancing the side seals, assembling the rotors, complete assembly the short block, setting the eccentric shaft end play and installing the front cover and everything underneath it. It's probably the most complete engine build video outside of what you can buy from the vendors, and as such, is an hour long. After this one, I'm going back to videos under 20 minutes. But for now, grab a beverage of your choice, sit back, and enjoy.





4Rotor R26B MAGIC JAPAN
4rotor R26B MAGIC JAPAN www.tcp-magic.com The first time start engine





Handbuilt 4-Rotor Engine
This was a project that took about five years of weekends to put together. There was a lot of trial and error as jury-rigged parts were improvised and revised, leaks were identified and plugged, and byzantine electrical diagrams were decoded. It still does not run smoothly, as there likely is a problem with the intake system that has prevented smooth timing at idle. But she runs! lots of people wanted to know where the E-shaft came from: it was custom ordered from a shop in New Zealand.





Peripheral Port 12A Rotary Turning Over (Long)
Manually cranking a freshly built 12A peripheral port engine. The engine is built with 3 window bearings, is doweled and has a shimmed oil pressure regulator. Ultimately it will run EFI and be turbocharged. Plugs are installed (listen to those pops!)




Which car is faster? Which Car is Faster?





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