Whats all this about then??
Discussion
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=32094&item=7909478115&rd=1
What kind of supercharger is that !!!
BB
What kind of supercharger is that !!!
BB
Taken from www.halfbakery.com/idea/better_20electric_20supercharger
Seen a couple of these things around and got curious as a friend designed one for a masters in engineering. As the article said thoug, to get a decent amount of power you need something like a 40 amp draw on the alternator. Not really viable. Nice idea though..
some guy said:
I own a business that specializes in aftermarket turbos, so I'll share a little of what I know. This might help you out a little. As others have stated, you can't just consider the CFM. That's simply how many cubic feet of air are moved. You have to consider the pressure of that air. A typical factory turbocharger might product between 5 and 10 PSI. Some more aggressive systems run up into the teens. If you look at the electric turbochargers on ebay and such, you will find that most of those are bilge fans for boats. They are incapable of producing any significant increase in pressure. They may flow high volume, but if you tried to get them to flow agains a 1 psi pressure differential, you would get virtually 0 volume. The E-ram seems legit. The motor is strong, and I can believe the 1 PSI claim. That's not nearly as much boost as a real turbo system would get you, but it's worth having. To evaluate their product I bought one. While the idea is good, the build quality is not. E-Ram superchargers are (in my humble opinion) very poorly built. The housing was made of cheap plastic that flexed so much that the fan blades kept hitting the housing. I ordered the one with the dual inline motors, and when it arrived, one of the motors was burnt out. However the motor that did work seemed up to the task of producing one pound of boost on a relatively small engine.
Seen a couple of these things around and got curious as a friend designed one for a masters in engineering. As the article said thoug, to get a decent amount of power you need something like a 40 amp draw on the alternator. Not really viable. Nice idea though..
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