1991 miata mx5 with a 12a PP rx7 engine conversion with cat delete going to a cherry bomb and dual borlas,
Engine has super seal, racing water jacket seals, hardened stationary gears, baffle pan, racing springs.
Rotary Miata 13b Turbo II
Just a short video of my rotary miata it has gone from 12a carbbed to 13b
NA and now finally 13b TII. Engine mods are RA classics apex seals, atkins
solid corner seals, fd corner seals springs, hardened stationary gears,
racing oil regulator, t04 hybrid, V-mount ,ect
Defined Auto Works semi-peripheral port
Semi p-port 20b nissan revving with open header. The car was running open
header for a car show Defined Auto Works was hosting. Please pardon my
shaky recording it was very loud and one hand was covering my ears :)smoke
is due to 1:1 premix ratio and a one year old tune. Defined is a fantastic
company and for more info please visit their site at
Part 7: My 76 Mazda RX-5 Cosmo Restoration - Intake and Exhaust Porting
Has it been nearly a month since my last episode? Wow, time does indeed
fly. I've been quite busy preparing to build the engine. So in part 7, I
cover the intake and Exhaust porting.
The engine is being built with GSL-SE 6 port plates and the Cosmo rotor
housings as the basis for a 6 port turbo
setup. This port job is fairly conservative, only opening up the primary
ports a little and bringing the Exhaust ports close to 2nd gen RX-7 specs. The
goal is to maintain fuel economy, low and midrange torque, and idle
quality. This episode covers everything involved in porting including:
marking out the new ports, grinding the port shape, smoothing the bowls,
smoothing port to runner transitions, smoothing the runners, grinding and
blending the Exhaust ports.
Rotary Engine Breakthrough?
The Wankel engine always held out a lot of promise, but never was able to
fully deliver on those promises. It was never very fuel efficient, and the
Exhaust temperatures were very high.
But now an independent car tech thinks he has stumbled onto what held that
Get more video everyday at http://autoline.tv
13B TURBO TIME ATTACK MX-5
Andy Wyatt from Adaptronic gives us a run down of his MX5 build during the
new suspension fit out at MX5 Mania!
Rotary Miata 13b street port weber 48 IDA
This is my Miata that I am building for road racing at track events. It has
a 13b with a large street port and a weber downdraft 48 IDA. This little
thing should be a monster.
13b rotary miata revving - Lucky 7 Racing
Lucky 7 Racing 13B Rotary Miata version 2. turbo! Custom mounted 91 13BT. 13B Miata kit
coming soon! Keep up with us on our facebook. This is our second 13B Miata,
we are currently working on bringing you a mount kit you can purchase from
Like us facebook for daily updates
This one made 260rwhp 240tq with a stock port engine, 3" Exhaust, FMIC, Haltech Sprint RE, and LS coils.