Electric Turbo
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From: Bakersfield, CA
The beauty of turbos is the free energy provided by exhaust gas. Not unlike regenerative braking on electric cars. I would bet that Mazda's take on electric assist is just to improve throttle response. The hang up is probably reliability/complexity/etc. as your average turbo is subject to so much heat that it can cook oil so just think what an electric motor has to endure....
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From: Calgary, AB
Originally posted by Ajax
Superchargers apply continuous boost across the entire range of RPM. Turbochargers apply boost at specific RPM levels.
Superchargers apply continuous boost across the entire range of RPM. Turbochargers apply boost at specific RPM levels.
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Gordon
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From: Colorado
ummm...correct me if I am wrong, but isn't the whole idea of twin turbos to have one able to spool up down low and the second spool up high there by minimizing lag time? So what sense would it make to have Twin electric assist turbos that have nil lag time already? Its not like we need two turbos to reach the 6-8 psi that will be safe for this motor. Sounds like a line of sales bs to me. Not that a turbo version isn't possible but twins would just be retarded IMHO.
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From: Lewisville, TX
who said anything about twins?
twin turbos still have lag. the first turbo especially has lag because the exhaust isnt flowing enough to spin up that turbine. In a sequential setup, I doubt the second turbo has any real lag.
Now parallel turbos are a different story. They're both going to have about the same amount of lag.
twin turbos still have lag. the first turbo especially has lag because the exhaust isnt flowing enough to spin up that turbine. In a sequential setup, I doubt the second turbo has any real lag.
Now parallel turbos are a different story. They're both going to have about the same amount of lag.
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From: Lewisville, TX
Originally posted by Gord96BRG
Nope. Supercharger boost is a function of rpm - the faster you spin the SC, the more boost it makes - so SC boost is linear with RPM. Turbos, on the other hand, can be sized to reach full boost at any rpm you want, especially with electronic controls. My Audi allroad, a twin-turbo 2.5l V6, reaches it's torque peak at 1800 rpm - and holds that same peak torque value until over 5000 rpm! There ain't no supercharger in the world that can give a torque curve like that.
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Gordon
Nope. Supercharger boost is a function of rpm - the faster you spin the SC, the more boost it makes - so SC boost is linear with RPM. Turbos, on the other hand, can be sized to reach full boost at any rpm you want, especially with electronic controls. My Audi allroad, a twin-turbo 2.5l V6, reaches it's torque peak at 1800 rpm - and holds that same peak torque value until over 5000 rpm! There ain't no supercharger in the world that can give a torque curve like that
.Regards,
Gordon
I think you misinterpretted me. Basically waht I was saying is that with an SC, it's always on whereas with a turbo, it kicks in at a specified RPM. I probably should've clarified that the belt on a supercharger is coupled to the engine and therebye the engine RPM.
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Originally posted by Floyd
ummm...correct me if I am wrong, but isn't the whole idea of twin turbos to have one able to spool up down low and the second spool up high there by minimizing lag time? So what sense would it make to have Twin electric assist turbos that have nil lag time already? Its not like we need two turbos to reach the 6-8 psi that will be safe for this motor. Sounds like a line of sales bs to me. Not that a turbo version isn't possible but twins would just be retarded IMHO.
ummm...correct me if I am wrong, but isn't the whole idea of twin turbos to have one able to spool up down low and the second spool up high there by minimizing lag time? So what sense would it make to have Twin electric assist turbos that have nil lag time already? Its not like we need two turbos to reach the 6-8 psi that will be safe for this motor. Sounds like a line of sales bs to me. Not that a turbo version isn't possible but twins would just be retarded IMHO.
It was just BS from the sales guys.
Al the magazines say its a single turbo w/electric assist.
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