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Old 06-26-2014, 10:29 PM   #21 (permalink)
oldtamiyaphile
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Quote:
Originally Posted by oil pan 4 View Post
You can get the same on off effect with a clutch on a supercharger.
These compressors have to put out 10 and 20 horsepower worth of air to provide boost. Not something easily done on a 12 volt system.
It can be done, there is an electric super charger out there that does work. Its a screw type compressor with what looks like 3 starter motors powering it. That thing had like a 10% or 20% duty cycle if your electrical could keep up.

I would just go with a clutched setup.
It seems like the clutch would have to go on the S/C pulley so the belt would always be sapping power.

What I'm really trying to do is boost the idle to 1500rpm flat spot that my 4.0 Jeep has, I don't care if it runs out of puff at 2000rpm since I very rarely rev it that high. It seems like an electric S/C would be far more suited to the task than a mechanical setup. If it saves me a downshift on the highway or even means I don't have to regear my axles when I add bigger tyres it would be a huge win.

Yes a S/C can easily consume 20hp to run, but that's at redline where us Ecomodders rarely venture.

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