Eventuri Toyota Supra A90 B58

Product description

TOYOTA SUPRA MK5

*Some images shown with optional carbon engine cover available separately.

Performance gain: 17-20 hp, 11-20ft-lb

The MK5 Supra Eventuri intake has been developed to provide the turbo with a less restrictive flow path while keeping intake temperatures low. Heat and volume are the most important considerations when designing an intake for turbo engines. In the Supra, the intake system is located next to the exhaust manifold, which causes the engine compartment to heat up quickly. High temperatures are detrimental to engine performance because the turbo would have to build boost with heated, less dense air and so the only way to ensure IATs are kept to a minimum is for a fully sealed intake. However, this results in a limitation with only one supply air supply to draw air. During development we noticed an additional opening in the wheel arch area and took advantage of this by adding a secondary feed to our airbox. Furthermore, our sealed airbox also has a gold reflective heat shield to minimize radiant heat transfer from the exhaust manifold. To maximize volume, we made the airbox as large as possible with a recess for possible struts. The stock convoluted intake tube is replaced with a smooth carbon tube that also has a larger internal volume with a starting diameter of 111mm (4.4″) that gradually tapers towards the turbo inlet. The tube provides a smooth path from the filter to the turbo inlet. Finally, we use a custom high-flow drying filter that is ISO tested for filter performance and has a larger filter area than the stock filter.