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.
RX3 13B PP 09 Targa Tasmania Mount Claude "chase" !!
At the start of the stage the Navigator of the rally spec Celica in front
said "my Driver hates Rotaries but I love em, I bet you a beer you cant
catch us on this stage..." With such high stakes, it was on !!
30 seconds head start, 9.86km and got him on the final straight where we
hit approx 215km/h as we passed him! 10,000rpm with the 13B PP
Enjoy, we did!
Nitrous LSx Mazda RX-7 vs E85 Big Turbo EVO on slicks!
EVO HAD CLUTCH ISSUES REMATCH COMING SOON!!
OutOfOrder EVO vs DNR Performance LSx RX-7
Shoutout to 3HeadedElephantS for the GoPro Footage! Checkout his channel
and subscribe, also watch his badass edit of this same race here:
Mazda Rx7 4-rotor race car. The making of a Defined Autoworks Beast. [Offical Video]
Never before seen footage showing the assembly/start-up of our custom
4-rotor. It is the first 4-rotor since the 787b to use triple spark plugs
per rotor. It is also the first since the 787 to feature telescoping intake
manifold. Custom made slide throttle body system. A world first however is
the use of a center main bearing and 4-piece eccentric shaft. Quick specs-
9.7:1 rotors, lightened and race clearanced. Race main bearings, and race
rotor bearings, ceramic NRS 2mm apex seals. Custom stationary gears, Full
custom Peripheral Port in each rotor housing (defined auto), Aluminum side
housings for reduced weight. Needle roller bearing in the center housing.
4- Piece eccentric shaft 0:47
Dynamic engine balancing 1:23
Variable length intake 2:20
Engine assembly 2:32
Rotor rotation 3:49
Slide throttle 4:00
4-rotor startup and idle 4:30
All footage and editing was done by Defined Autoworks. Music by Ivan
Contact us at 614-592-7991 we build any type of rotary powerplant to the
See the build thread here-
Mazda RX-7 Spitting Huge Flames from Exhaust!
When I was driving back from an event, this turbocharged Mazda RX-7 FD3S passed me in a
tunnel. As you can see this tuned Mazda RX-7 FD3S was spitting some huge
flames from the Exhaust! Hate it or
love it, I really enjoyed it! :)
1st Channel: http://www.YouTube.com/GUMBAL
2nd Channel: http://www.YouTube.com/GUMBALTV
3rd Channel: http://www.YouTube.com/CarChannelClassic
Thanks you for watching my videos. All feedback on my videos are
appreciated! Don't forget to like the video and subscribe to my channel.
More videos coming up!
Peripheral port 13B idle
Homebrew 13B at idle; fabricated ports, header, intake manifold, etc,
breathing through a Weber 48 IDA.
Trying some tricks with porting and header design and it only fired up for
the first time about an hour ago, so I have no idea of power output, and
very little desire to make unrealistic guesses.
Mazda RX-7 Spirit R: The Glory Days of Japanese Sports Cars - Ignition Episode 31
On this episode of Ignition, Carlos Lago convinces Mazda to hand him the
keys to the only left-hand drive RX-7 Spirit R in the world. After a quick
look underneath the car, Carlos hits the winding road to explore the
involving driving experience and rotary engine that made the Mazda RX-7 so
unique, as well as its connection to the new generation of lightweight,
rear-wheel drive coupes like the Subaru BRZ and Scion FR-S.
Ignition appears every Monday on the Motor Trend youtube channel.
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