Supercharged crap????
That is NOT a supercharger of any kind... A supercharger, by design, will actually compress the air flowing into the intake manifold creating what is called Boost. The picture shown is just an electric fan placed in an intake tube. All it will do is blow air at the engine, and I guarantee it will not create much, if any, positive pressure by doing so... 150cfm is a decent amount of flow, but it pails in comparison to the 500-800cfm produced by todays "smaller" turbochargers... It may contribute some additional horsepower (like 5 or so), but don't expect anything astonishing...
Newbie
Joined: Jun 2001
Posts: 61
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From: Renton WA
150CFM is roughly 4247.5 Liters of air per minute.
Lets see you have peak torque at about 4250rpm or so correct? With a 2.0L engine and we will say 80% volumetric efficiency. That gives roughly 6800 liters of air ingested per minute.
Now the small turbo example was said to do about 450CFM of air that gives 3 times as much air which is about 12700 liters of air per minute of enough air to give you 14.7psi of boost (double the atmospheric consumption of the motor at peak torque).
This shows that this device would give you a small power increase up to probably 3000rpms and then after that it would not be able to flow what is required and would then start to become a restriction in the air path. Dyno plot would probably show more low end torque with a loss in hp from the middle rpms and up.
Besides a 12V system doesn't have the capacity to flow enough power without insane amounts of current. P=I*V and the air pushed will be proportional to the power that can be input into the system taking into account that the fan won't be even 70% efficient at converting that energy into spinning force. Hell the fan would even heat the air as it comes in. A 42V electrical system could do a better job but then the gains would probably be offset by the extra stress on the alternator.
Spend your $300 on something else instead.
Lets see you have peak torque at about 4250rpm or so correct? With a 2.0L engine and we will say 80% volumetric efficiency. That gives roughly 6800 liters of air ingested per minute.
Now the small turbo example was said to do about 450CFM of air that gives 3 times as much air which is about 12700 liters of air per minute of enough air to give you 14.7psi of boost (double the atmospheric consumption of the motor at peak torque).
This shows that this device would give you a small power increase up to probably 3000rpms and then after that it would not be able to flow what is required and would then start to become a restriction in the air path. Dyno plot would probably show more low end torque with a loss in hp from the middle rpms and up.
Besides a 12V system doesn't have the capacity to flow enough power without insane amounts of current. P=I*V and the air pushed will be proportional to the power that can be input into the system taking into account that the fan won't be even 70% efficient at converting that energy into spinning force. Hell the fan would even heat the air as it comes in. A 42V electrical system could do a better job but then the gains would probably be offset by the extra stress on the alternator.
Spend your $300 on something else instead.
and i couldn't wait to see the simpsons dvd...