This Angry Four-Rotor RX-7 Dyno Run Has A Racing Car Soundtrack
We’ve covered Rob Dahm’s astonishing three-rotor Mazda RX-7 a few times before, but the man’s latest video focuses on someone else’s FD. And we just can’t get enough of the noise it makes.
David Mazzei’s RX-7 is powered by a custom-built four-rotor engine, and a big driving force behind the project is the urge to recreate the sound of the legendary Mazda 787B prototype racer. The first and only rotary-powered car to win the 24 Hours of Le Mans emits an addictive shriek we’re unlikely to hear in the motorsport world ever again, and this FD is deliciously close to replicating that soundtrack.
Unlike the naturally-aspirated 787 engines, Mazzei’s four-rotor is fed by a GTX5533R 98mm Garrett turbocharger. Inevitably, then, there are plenty of whistles and chattering you wouldn’t have heard from the 787, but all those turbo noises merely add drama to the wail of the four-rotor.
The engine is extremely potent, too, clocking 950hp on the final run in the video. And apparently, there’s even more to come…
Growing up on a diet of World Rally Championship highlights and lengthy Gran Turismo 2 sessions, a life in cars was as good as inevitable for Matt.
Comments
My favorite soundtrack next to the LFA’s
BRAP BRAP BRAP BRAP
Long live the rotary!
Yep… nearly 50 000km 🤣
Why people swap these babies for ls I have no idea
These babies are swaps themselves, sadly. and an LS can be much cheaper to source as well as easier to build in the US. So yeah, that is the gist of the redneck swap.
I just wanna know why it has 2 exhausts
One is the exhaust, one is the wastegate dump from the turbo
My guess would be because of the possibility of restictions in the exhaust flow if it only runs a single exhaust
There is a turbo waste gate, a side exit un-restricted exhaust and a rear exhaust (without knowing and purely guessing) i would say due to state restriction the rear exhaust is a full exhaust so it can be driven i the road but he can open up the side exhaust for more and better power as its less restrictive and the turbo waste gate is just to control boost pressure
doritodriftospinnyboi™(∆)(mazdaboi)(RX-7crazy)(RotaryFighter)
Yes, just yes
OMG SO GOOD
Wow insane power output
I love how it shoots fire out of three exhausts.