There are hundreds of bolt-on performance parts available for the Mazda RX7, but how do you know what works, and what doesn't. Are the big ticket items worth the price. Not always. can you get significant increases in performance and handling without spending a fortune. You bet. There are hundreds of parts available to boost the performance of your RX7.
Air Intake Systems
One of the cheapest and most popular performance parts to increase the engines performance are cold air intake parts. Your engine relies on a balanced mixture of fuel and air for combustion. Currently, your vehicle draws air through the original manufacturer's intake parts including tube and air box, which is typically loaded with a disposable paper air filter. Automakers design your vehicle's intake tube to be the quietest possible parts that can fit in your engine compartment to provide maximum performance.
While reduced engine noise is of benefit to you, it comes from an intake tube or parts with multiple turns and bends. The result is a drop in the volume of air delivered to the combustion chamber. And, because your stock intake parts completely confines the air box in your engine compartment, the air is usually hot when taken in. This combination of limited and warmer air causes fuel-rich combustion mixtures that don't burn at maximum power efficiency.
Performance parts such as air intake kits solve a few of these problems in one impressive unit. First, a performance air intake replaces your stock intake tube with a wider pipe that has fewer bends. The result is a higher volume of air that flows more freely, filling your combustion chamber with more oxygen molecules for igniting fuel at balanced, efficient mixtures that maximize power.
Cold air intake performance parts also relocate the air box outside the engine compartment, where cooler air can be sucked in by the air filter. The typical relocation spot for a cold air intake's air box is in the upper wheel well above the tire which will provide maximum performance. Taking in cooler air for combustion means an air mixture that's denser with oxygen molecules for a better burn and ultimately more power.
Not all performance parts particularly air intake parts are cold air intakes that move the air box and/or filter. In general, manufacturers test both types of performance parts and intakes on a vehicle to see if there's a significant benefit to relocating the air box.
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