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.
20B rotary RX-7 Spirit R: The Ultimate Street Mazda
Built by Promaz Automotive, we think it's hard to go past Steve's wicked
Series 8 FD RX-7 if rotaries are your game. Limited to around 1500 unit's,
the Spirit R was the last of the RX-7's and featured a lot of upgraded
factory parts as well as a low 1100kg weight.
Now powered by a lethal Promaz triple rotor 20B extend port rotary engine,
power is aided by a Garrett GT42R turbo
and MicroTech fuel system and transmitted through an Albins 5-speed gearbox
and KAAZ rear end [ http://www.promaz.com.au ].
WORLDS FASTEST ROTARY 6.58@208 MPH
When are these guys going to stop breaking the records?? every time pac
performance goes out to the track, they put on a HUGE SHOW, a job well done
to George for steering the Pac Mazda 6 to all new hieghts more info coming
soon to http://www.rotorg33k.com
Shifting gears - 13B turbo Mazda RX3
Ross' 8-second street driven Mazda RX3 features a Promaz Automotive 13B
rotary bridge port engine, MicroTech EFI and Boosted by a Garrett GTX42R turbocharger through an Albins equipped RX-7
h-pattern gearbox. [ http://www.promaz.com.au ]
Get your track gear!
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Calder Park, Australia - August 24th 2014.
The Mazda Rotary Engine Part 1
Educational film by Toyo Kogyo about the Mazda Rotary Engine. Shows how the
Rotary engine works with comparisons to the Piston Engine. Also shows the
Mazda RX500 test vehicle on a banked circuit and the Mazda Cosmo Sport (or
110S). Originates from the late 60's.
Mazda RX2 13B turbo runs 9s
This Mazda gets a little loose on the track on its way to running 9-second
passes at Calder Park.