Mazda RX7 and RX8 vehicles can be very reliable if they are carefully maintained. Derwin Performance’s Jean-Pierre Derdeyn told Hagerty that a properly maintained rotary engine can last 150,000 miles or more without any problems.
What is the average life of a rotary engine?
How long will the RX-8 engine last? There are various answers and speculations as to how long a typical RENESIS engine can last for. Just like any other engine, taking the time to care for it properly will make it last longer than usual, however, that could mean 80,000 miles or less.
Are rotary engines reliable?
Rotary engines are known for being typically unreliable, but the issues are somewhat easy to resolve.
How often should you rebuild a rotary engine?
Rebuilding a Wankel at 80,000-100,000 miles is typical, and earlier than most piston engine need such exhaustive work.
Are rotary engines high maintenance?
Chances are your average mechanic is not capable of doing much maintenance on your rotary engine. They are completely different from your standard piston combustion engines that mechanics work on day in and day out, and they are even less common than working on hybrid cars.
How long does a 13B rotary engine last?
“It’s not a stretch for us to see well-maintained, stock 13B engines lasting well above 150,000 miles with no major issues. If it hasn’t been carefully maintained, a rebuild at less than half that mileage isn’t uncommon.”
Why did Mazda stop making rotary engines?
Mazda last built a production street car powered by a rotary engine in 2012, the RX-8, but had to abandon it largely to poor fuel efficiency and emissions.
How much HP can a rotary engine make?
There is a the R12 rotary engine used for boat racing that produces 1200 to 3600 horsepower depending on boost. A stock 12A twin rotor produces around 130 horsepower and the stock 13B, used in the RX7, produces from 135 to over 300 horsepower.
Why are Mazda RX-8 so cheap?
Poor Fuel Economy & Daily Drivability
Another reason why the RX8 is cheap to buy now is because many are put off by the poor fuel economy of the car. Rotary engines might be small in size (and produce substantial power relative to that size) but they have a tendency to be thirsty.
How much would it cost to rebuild a rotary engine?
A proper rebuild, one that goes beyond running (120+ PSI warm compression numbers) will be north of $4000. With upgrades for power and longevity, you can expect to pay $6k. A Mazda remanufactured engine comes with new housings, irons, rotors, seals, etc for as low as $2900.
Why is the RX7 illegal?
Any Mazda RX-7 produced after 1995 is not allowed or is banned in the United States. This is because of the left-hand driving configuration of the vehicle. This means that if you want to own one, you have a couple of options. One is to find a used RX-7 in the United States that is a 1995 year model or older.
How long do RX7 Motors last?
Carefully-maintained, both the Mazda RX7 and RX8 can be very reliable. Jean-Pierre Derdeyn of rotary-specialist shop Derwin Performance told Hagerty that rotary engines can last for 150,000 miles or more without issue if maintained correctly.
How much does a 13b rotary engine cost?
Our standard two-roof engine can be built for as low as $3200 if all the main parts are in order.
What’s so bad about rotary engine?
Rotary engines have a low thermal efficiency as a result of a long combustion chamber and unburnt fuel making it to the exhaust. They also have problems with rotor sealing as a result of uneven temperatures in the combustion chamber since combustion only occurs in one portion of the engine.