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.
Rotary 20B turbo RX7 - Dyno & track
Built as an all-round event's car, Charles' Mazda RX-7 has undergone
serious chassis and engine changes including a Promaz Automotive
bridge-port 20B rotary engine. Boost
comes from a Garrett turbocharger while
the engine runs on methanol fuel controlled by a MicroTech LT16 computer
and LTC dash logger. Backed by a Jerico 5-speed dogbox, the clutch was
suffering on the Dyno
as the Promaz team got the car ready for Performance Car Mania. [
Get your track gear!
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Performance Car Mania, Winton Motor Raceway, Australia - September 2014
In honour of the re-union race at Mallory Park this coming 28/29 August
(get your butts down there!) here is the tiny bit of footage I have of
Thundersallons/Silhouette racing. I loved these cars and races as a
marshall, well behaved drivers, spectacular cars, fast and noisy, just what
First clip has Tony Sugden's Skoda and Mick Hill's March BMW (anyone
confirm/disagree?) arguing over the same bit of Thruxton tarmac, big spin
for Tony. Next its a Class-B Silhouette race at Brands and a fast starting
Toyota Sarlet knuts the Brands bank. Then off to Donington and a race I was
at, hence the brief pause, that's me on the wall on the right. The cars are
Pete Steven's works Carlton leading from the Wilson/Birley Armour-All RX7,
Whale/Hodgetts ex-BTCC Supra (now with a proper gearbox, lol), Wallace
Sierra ?, Dell/Boarer Sarlet, Maries/Nash Holden, Chatfield BMW M3,
Jackson/Liles Astra, Morris/Morris 309GTi, Morton & Bridger/Mortlock
Sarlets, McLaird yellow 205. Awesome cars. The Cunnigham/Chalmes Manta
spins at Redgate and gets a whack from John Quartermayne in the SD1, then
Morris spins the 309. Stevens lost the race to the RX7 when a wheel
bearing went South, hence all the smoke.
Next its Brands and a rear view from the Stevens GM Carlton of Ron
Cumming's Aberlan Honda Legend, I remember Tony Wolf running a white Legend
as well, same car different owners and paint? We then see a very rare spin
from Stevens when he has to slow to avoid the ex-Sean Walker BTCC Sierra
RS500. Anyone else have footage of these awesome machines, let me know, and
see you at Mallory next weekend.
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:
The Zero F**ks Given RX7 - /TUNED
Would you drive a car built by a teenager in his parents driveway with no
safety features whatsoever? We did, and now we'll tell you why this ugly
RX7 is so brilliant.
20B ROTARY ACTION! 20B DATSUN 1200 & 20B MAZDA RX3 - TNT 28/12/2013
On the final Test and tune at Willowbank Raceway for the year, Brad Mcilroy
was out testing his Mazfix prepped 20b Datsun 1200 ute as well as Russ in
his 20B powered Mazda Rx3. The PRODAT was testing some changes in the rear
end, keeping the newly added 10.5 inch tyres as well as some changes to the
4 link, and after a few tweaks had the car complete a full pass of 7.95 @
165 mph with a small back off down the deep end, a little slower then what
the car has run but a little more stable down the track. The Mazda Rx3 had
some issues most of the night but managed to get it down the track for an 8
second pass, also off its best, but once sorted should be back down to
where it was running before.
SCREAMING 20B rotary engine dyno ~ JPC
Centreline Suspension's 20B PP rotary engine from their Mazda RX-7 Sports
Sedan circuit racer on the Dyno at JPC.
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
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More videos coming up!
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
Sick RX7 Takeoff - LOUD
Orlando Cars and Cafe - Watch and Listen to this highly modified Mazda RX7
take off. Originally was filming another car but heard what sounded like
gun shots. Turn around and see this 600+whp RX7 just backfiring like crazy.
Watch and listen as he gets absolutely no traction in first gear and then
just rockets off.
The car was putting down 600rwhp @16PSI of Boost with the potential to put down 800rwhp
at 27PSI on race gas.
racecars with pure engine sounds (SLS, DBRS9, 997 GT3 R, Mazda 3, F1, ...)
International testday at circuit zolder on 2011-03-24
More video's of the Mazda 3 axela on my channel.
You can see all my pictures of this car on this link.
pure engine sounds Mercedes-benz sls amg gt3 aston martin dbrs9 porsche 911
rsr 962c 997 gt3 r cup mazda 3 sedan 20b 3 rotor vw scirocco ford escort
radical sr3 rs F1 Fittipaldi BMW E90 M3 wtcc, ferrari mondial Formula
Nippon Corvette GT3 axela
Mazda Rotary Dyno Massive 1664HP
This engine has massive HP, WOW Awsome also on braptv.com Mazda Rotary
Queen Street Racing 4rotor GT60 1664HP