Saturn Sky Redline Borg Warner Turbo

Looking more closely at the Borg-Warner dual-scroll turbo, we see where it gets its name: two separate exhaust passages leading from the exhaust manifold to the turbine inlet. "Combined with the VVT on both the intake and exhaust, this is a key element in getting good low-end torque and power at the same time," says GM's Ed Groff. "Typically, if you put a turbocharger on that's large enough to get the power that you want, you would suffer at the bottom end. We have a variety of technologies--the SIDI, the cam phasers, and the dual scroll--that all help the bottom end," says Groff. Thanks to the engineers' efforts, turbo lag is allegedly cut to imperceptible levels, furthered by a lightweight turbine design.

Red-Hot Roadster - 2007 Saturn Sky Red Line

Looking more closely at the Borg-Warner dual-scroll turbo, we see where it gets its name: two separate exhaust passages leading from the exhaust manifold to the turbine inlet. "Combined with the VVT on both the intake and exhaust, this is a key element in getting good low-end torque and power at the same time," says GM's Ed Groff. "Typically, if you put a turbocharger on that's large enough to get the power that you want, you would suffer at the bottom end. We have a variety of technologies--the SIDI, the cam phasers, and the dual scroll--that all help the bottom end," says Groff. Thanks to the engineers' efforts, turbo lag is allegedly cut to imperceptible levels, furthered by a lightweight turbine design. View Related Article

Saturn Sky Redline Borg Warner Turbo

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