What is 13B Rew?
The 13B-REW engine was a completely redesigned 13B engine, launched in late 1991 in the third-generation RX-7. The REW indicates that it is a rotary engine supercharged by twin sequential turbochargers. This is the first engine in the mass-production with such turbocharger system.
What is a 13B-MSP?
Introduction. Mazda’s 13B-MSP (Multi Side Ports) ‘Renesis’ was a naturally aspirated, two-rotor engine with a capacity of 1308 cc, i.e. 654 cc for each rotor. The 13B-MSP engine was offered in standard and high-output versions that were used in the Mazda RX-8 from 2003 to 2011.
How long does a 13B REW last?
Unfortunately, it’s not just lack of oil that can cause the apex seals to leak. Natural wear and tear on the seals is a normal and unavoidable. On a poorly maintained 13B REW the apex seals can go bad within the 50,000-80,000 mile mark, while on a well-maintained one they can usually last from 120,000 to 150,000 miles.
What is the difference between renesis and 13B?
The big thing that Mazda changed in the RENESIS is its port design. The older 13B-REW featured peripheral exhaust ports. The new 13B-MSP instead uses side exhaust ports. Mazda combats this by introducing two exhaust side ports per rotor, thus actually increasing the port area for the exhaust.
How much HP can 13B make?
How much does a Mazda 13B rotary engine weigh? Power: 135-280 horsepower.
Is 13B a good engine?
The Rx-8’s 13B Renesis engine is not praised for its reliability. The 13B engine suffered from a number of major problems that frequently left it needing a fresh rebuild prior to even hitting the 100,000 mile mark. Here are the top 5 common Rx-8 engine problems: Leaking Apex Seals.
Why was 787b banned?
So was it really banned for being to fast? The short answer is no. The rotary was only banned because of rules that where already in the making. To be honest the 3.5L rule was supposed to be implemented the year of it’s victory, but the 3.5Ls where proved unreliable causing the the teams to switch to last year’s cars.
How much boost can a 13B hold?
With boost set to a maximum of 35 psi, Jonny’s fully bridgeported and studded 13B engine is expected to smash his target of 700 whp on Lucky 7 Racing’s Dynojet dynamometer (we weren’t able to get dyno results before the article went to print, but stay tuned for an update soon!).
What is the 13B Rew/MSP hybrid?
Dave Lemon with his creation, the 13B REW/MSP Hybrid. The engine requires a pretty elaborate exhaust manifold to accommodate the side and peripheral exhaust ports. This engine can really breathe and has a wide powerband. It is sort of like having a high lift but moderate duration camshaft in your naturally aspirated engine.
What is the difference between 13B-REW and 13B MSP?
Instead of the 13B-REW, the 13B-MSP is a naturally aspirated (NA) engine. It kept two-rotor layout with a capacity of 1308 cc (79.81 cu in), the same rotor radius and length. Each chamber volume is 654 cc.
What is the difference between the 13B-REW and the 13bt?
This new design enhances intake flow by taking advantage of the strong pressure waves inherant in rotary engines. The throttle bodies on the 13BT are 3x45mm, while the 13B-REW are 1x45mm + 2x50mm.
How much power does a 13B-MSP Renesis have?
Mazda’s 13B-MSP Renesis manages to have an output of 250 hp, which is really close to its twin-turbocharged predecessor – the 13B-REW. The Renesis won International Engine of the Year and Best New Engine awards 2003, and it was on the Ward’s 10 Best Engines list for 2004 and 2005.