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
1987 mazda rx7 turbo
Fresh atkins engine w/ 3mm apex seals one of the 1st startups only showing
-10 vac bad engine or good porting you deside
Rx7 Turbo II streetport Dyno.wmv
3 Face Racing 12Lbs 380RWHP Holset HX50 tune. In a rush to get out of
Atlanta. did not finish tuning the car. Ran it like that for 5000miles.
then head back to Saudi Arabia to sit in the sand.. Going to 18-23 psi
next tune. in Feb 2011.
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
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 RX-7 Spirit R: The Glory Days of Japanese Sports Cars - Ignition Episode 31
On this episode of Ignition, Carlos Lago convinces Mazda to hand him the
keys to the only left-hand drive RX-7 Spirit R in the world. After a quick
look underneath the car, Carlos hits the winding road to explore the
involving driving experience and rotary engine that made the Mazda RX-7 so
unique, as well as its connection to the new generation of lightweight,
rear-wheel drive coupes like the Subaru BRZ and Scion FR-S.
Ignition appears every Monday on the Motor Trend youtube channel.
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