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Ported Compressor Covers
A turbocharger compresses air, act as a compressor then force the compression into the cylinders of the internal combustion engine to raise the power output significantly. However, compressor surge happens when a compressor wheel is flowing more air than the engine can take in. This causes the excess air to back up in the intercooler piping and stall the air because it fights against the incoming air. This is why we offer ported compressor covers.
Ported compressor covers, or anti-surged covers, are designed for the air to have convection and reduce compressor surge, with a ported cover it allows air pressure to be relieved, and the turbo can continue to work smoothly, moving compressed air into the engine without being backed up. Arashi Dynamics offers two main types of anti-surge compressor covers, they are the bullet hole type and the slotted type.
The design of a bullet hole type cover is to drill down the map width groove from a cast piece; same with the slotted design covers, they are machined out from a cast, these slots also go down to the map width groove. The groove around the wheel is where the air escapes out of the compressor either from the bullet holes or slotted ports. Both the bullet hole type and slotted design covers function the same, so it is up to individual preferences of which to choose. The only difference is their appearance, both types help to fight compressor surge.
Ported compressor covers, or anti-surged covers, are designed for the air to have convection and reduce compressor surge, with a ported cover it allows air pressure to be relieved, and the turbo can continue to work smoothly, moving compressed air into the engine without being backed up. Arashi Dynamics offers two main types of anti-surge compressor covers, they are the bullet hole type and the slotted type.
The design of a bullet hole type cover is to drill down the map width groove from a cast piece; same with the slotted design covers, they are machined out from a cast, these slots also go down to the map width groove. The groove around the wheel is where the air escapes out of the compressor either from the bullet holes or slotted ports. Both the bullet hole type and slotted design covers function the same, so it is up to individual preferences of which to choose. The only difference is their appearance, both types help to fight compressor surge.