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
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.
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:
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.
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! :)
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More videos coming up!
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.
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
Mazda Rx7 ALL MOTOR 6.80 pass
This is run with an onboard camera.
We didn't have enought time to get the car ready so i forgot to set the
tach to read properly.Don't mind the tach.Had to use some of my hearing to
shift the engine.
Ran a 6.80@79MPH letting off half track with a bad 60ft.
Loudest Mazda RX7 exhaust sounds in the world!
Loudest Mazda RX7 Exhaust sounds in
2002 Mazda RX7 FD3S Fujitsubo catback Exhaust
1985 FB Rx7 Chevy 350 (https://www.youtube.com/watch?v=cm08uKhqF9w) by
1989 Mazda RX-7 turbo II
Mazda RX7 (https://www.youtube.com/watch?v=DHQKrMP1r-M) by
Mazda rx7 fc3s s4 racing beat headers presilencer apexi Exhaust
Picture (thumbnail): by