rotary engine headers

Category: Rotary Engine

Rotary engines have the ability to make large power gains through tuning. One of the most important aspects of rotary tuning is rotary exhaust. Rotary engines produce very strong hot pulses of air. The strong exhaust pulses can be used in a manner similar to two stroke exhaust tuning. The exhaust can be tuned to scavenge the intake air into the engine causing a filling of air into the intake side. The intake air is trying to fill the vacuum of where the exhaust has left. Racing headers from companies like racing beat and mazdaspeed can bring large improvements in power. Muffler and larger tubing mandrel bent exhausts can also largely improve the power of a rotary engine. Rotary exhausts should not be cheap normal exhausts. The increased temperatures and pressures of the rotary exhaust will quickly break or destroy a normal exhaust. The preferred exhaust systems will be larger gauge (thicker) and best made of stainless steel. Even the mufflers are made thicker and welded better. Horsepower gains will vary on regular and turbocharged cars but will be substantial on both types of vehicles. Some rotaries may experience over 10% power increases! This is the first place to look for performance in a rotary powered vehicle.

rotary engine

Category: Rotary Engine


A rotary engine can make huge amounts of horsepower. Rotary engines are generally mazda 12a or 13b engines. Rotary engines in drag racing have been known to make more than 1000 horsepower!! These engines have gigantic modified intake and exhaust ports. Tuned headers and exhaust systems provide huge power gains due to the strong exhaust pulses. Race rotaries also use lightened rotors and upgrade to the wider 3mm apex seal instead of the stock 2mm. The apex seals are widened to increase the sealing area and to help transfer heat away from the rotor.

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