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Old 09-12-2012, 03:42 PM   #55 (permalink)
Frank Lee
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The aim with Cobra was to develop a 24 volt electrical supercharger to eliminate transient turbo lag, in other words be active for a few seconds or more but sufficiently robust to do so repeatedly without any thermal management issues...

The torque increase and transient response with Cobra also provides a cost-effective alternative to expensive variable geometry turbocharging by simply combining the electric supercharger with a standard, lower-cost, fixed-geometry turbocharger.
Looks like they're going through all that trouble just to reduce turbo lag, by ADDING the electric unit IN ADDITION TO a standard turbo.

I didn't know turbo lag was still such an issue? And that the electric system can be more cost effective/compact/efficient/simple than a variable-geometry turbo?

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