Mazda 787B, Mazda RX-792P, Mazda RX-7
The 787B and RX-792B both use the 4-rotor R26B an engine that is easily capable of at least 900 HP, but limited for long term racing reliability to 700 HP.
Racing rotary engines are easily one of the loudest Exhausts at idle and arguably the loudest Exhaust note on the track at full song. An incredible engineering feat and incredible engine.
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 3 Sedan 20B first race 2012 Zolder
Footage from the first race weekend of 2012.
including practice, qualifying and the races
race series: Supercar Challenge
date: 2012-04-20 to 2012-04-22
track: Circuit Zolder, Belgium
results: they finished 3rd in class in the first race and 2nd in class in
the second race.
Mazda 3 sedan 20b racecar. (axela)
3 rotor engine with approx. 450hp (NA, no turbo)
Rear wheel drive
Team: Van Herck Racing
Driver: Werner Van Herck (B)
More video's of this car on my channel.
Check out this site for more info about the car
Here's my video of RX-7 that this team ran between 2006-2009.
Mazda 787B - Le Mans (wonderful sound) (HD)
Onboard lap with Johnny Herbert on Le Mans Circuit for the 20th anniversary
of mazda 787b's victory at 24h of Le Mans.
driver: Johnny Herbert
circuit: Le Mans
IF YOU LIKED THIS, CHECK MY OTHER VIDEOS!!
2011 Nasa Championship Race PTD #38 Mazda
2nd place finish for Ben Anderson driving the Dragoon Motorsports built #38
AutoMotionTV / Martin Pevzner Mazda.
First time at Mid-Ohio, great facility!
All non-traffic race laps listed below:
PTD Mazda RX7 170whp, 2650lbs, A6s
following Mazda 787B on my bike at 24h of Le Mans 2013 (idle + revving)
To mark the 90th anniversary of the 24h of Le Mans, 11 legendary winning
cars were chosen by the public and a jury.
They did 2 slow parade laps before the actual FIA WEC race would start.
One of these was this Mazda 787B. This is the actual winning car from the
1991 24 hours of Le Mans.
Driven to victory by Bertrand Gachot, Johnny Herbert and Volker Weidler.
Engine: 4 Rotor R26B, 2.616 liter / 159.6 cu in, Naturally Aspirated
Power: 700 bhp / 522 KW @ 9000 rpm
Torque: 608 Nm / 448 ft lbs @ 6500 rpm
Weight: 830 kilo / 1829.8 lbs
event: 24 hours of Le Mans
Like my Facebook page