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.
What its like owning a 3 Rotor 20B RX-7
I have one of the most amazing custom RX-7s in the world. I want to share
my experience of owning and driving such a unique car.
I explain where the engine came from, why its so special, and what it does
to a Mazda RX-7
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-
7 Second RX7 - Turbo bigger than the motor!
CONGRATS to Bola de Humo Racing for running their first 7 the first time on
the 1320 with their new setup! Check out this 88mm turbo powered RX7 tearing down the track
weed-wacker style and all! :)
Their Facebook Page - https://www.facebook.com/BolaDeHumoRacing
20B turbo Mazda RX-7 - Promaz
Charles' Promaz modified FD RX-7 racing for the first time. The car
features a second-hand import 20B triple rotary engine, Garrett GTX42R turbo on 12psi Boost, MicroTech LX12 computer running on
98-octane unleaded. The driveline is still factory RX-7 issue.
Mazda RX-7 FD3S 550HP - Lovely Turbo Sounds!
I have recorded this Mazda RX-7 FD3S 3-rotor Twin turbo which is customized with an aftermarket Exhaust, rims, carbon details and more!
This RX7 has now more then 550hp!
As you can see, this RX7 accelerates very easily and it's even faster then a stock Ferrari 599 GTB F1
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!
Rotary Engine Breakthrough?
The Wankel engine always held out a lot of promise, but never was able to
fully deliver on those promises. It was never very fuel efficient, and the
Exhaust temperatures were very high.
But now an independent car tech thinks he has stumbled onto what held that
Get more video everyday at http://autoline.tv
Mazda Rx7 Brutal Duel! RX-7 Vs RX-7
Awesome duel between two Mazda Rx7 tuned.
A Mazda RX-7 with 355 hp and 2777lb against another Mazda Rx-7 with 394 hp
and 2821lb of weight.
These people if they know what it means to drive!
Impresionante duelo entre dos Mazda Rx7 modificados.
Un Mazda RX-7 con 355 cv y 1260 kg de peso contra otro Mazda Rx-7 con casi
400 cv y 1280Kg de peso.
Esta gente si que sabe conducir!
MAZDA RX7 Rotary Engine, How It Works
MAZDA RX7 Rotary Engine, How It Works
The MAZDA RX7 rotary or Wankel engine is a marvel of engineering. It has
won more races than any other vehicle in its class. Rotary engines develop
a great deal of power for their weight (power to weight ratio). They're
also able to develop high RPM bursts like no other internal combustion
engine. Learn the details of it operation, how the rotor transfers power to
the output shaft, what it the stationary gear set, what is the rotor to
output shaft ration and relationship. Get all the specifics on the rotary
engine's operation here in this video.
Presented using advanced software CG animation technology to help you
understand. Part of our Automotive Technology Rotary Wankel engines and
MAZDA RX7-RX8 series shown here on this channel. Enjoy...
Amazon Printed-Books & Kindle:
Google Play Android APPs:
Amazon Video DVDs:
Barnes & Noble Nook:
Apple iTunes iPad: