HKS Super SQV4 Sequential Blow Off Valve Kit

What are the SQV units in HKS Super SQV?

SQV Unit, O-ring, C-ring, T-fitting φ6×φ4×φ6, T-fitting φ4×φ4×φ4, Air Filter and Tylap. HKS Super SQV (Sequential Blow Off Valve) uses a unique sequential valve structure and a differential pressure control system, which allows a stable operation accross the wide range of boost.

Which is the primary valve in Super SQV?

At low boost ranges the Primary Valve opens, and at high boost ranges the Secondary Valve also opens, resulting in linear response and optimal blow-off operation at all boost levels. As pressure rises in chamber C, pressure is applied to both the Primary and Secondary valves.

Is the suction return kit included in Super sqv4?

Suction Return Kit is included in Super SQV4 vehicle specific kit. Circulation can be done easily. SQV unit and accessories are included. Appropriate kit parts are included to replace the SQV unit. To install the unit to new vehicle, modification of SQV on the vehicle’s side is required.

How does throttle lift work in Super SQV?

As pressure rises in chamber C, pressure is applied to both the Primary and Secondary valves. The higher the boost pressure, the more pressure is applied to the valves, preventing leaks. Throttle lift creates a pressure difference between chambers A & B, opening the primary valve bypassing the secondary valve. this creates the initial discharge.

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This mid-priced turbo blow off valve totally nips those compressor surges in the bud, giving you performance and a power boost that will put a smile on your face. And although this unit is larger than the usual blow off valve, the sound it produces is sublime as is the control it gives over the excess boost of your turbocharger. The installation features of the Super SQV4 are nifty too with C-clips, an O-ring, T fittings and a vacuum filter that make fitting as well as using this loud blow off valve a pleasure. The installation guide is also easy to use. In short, quality engineering from the HKS team has resulted in a high-performing blow off valve at a good price.