Electric Supercharge?

First of all, let me state that some electric superchargers CAN work, and can give you 10% more power (the 60amp models)!

However the 2-10amp one's on ebay tend to be in the camp that provide 1-5bhp and only cost £20 to make - and most of that power increase comes from removing the slightly restrictive standard air filter housing.

If the seller can't even properly describe the product then how can you trust that he actually knows if it works.

Here's some info I got when I researched these a long time ago.

The numbers on most of these 'chargers don't make sense:
A belt driven version that produces 4-5 PSI pressure requires about 25-30 HP from the crankshaft. This unit claims to produce 2 PSI of pressure. That would mean that at least 10 HP is required. 1 HP = 750 Watts. 10 HP = 7500 Watts

P = E x I or Power = Voltage times Current

This unit's required 2.2Amps times 12 volts = 26.4 watts

This unit falls short by 7473.6 Watts (7500 - 26.4)

It's actually robbing power (the air restriction of the blower blades and the friction of the bearings) from the engine as the blower "free wheels"
Click to expand...
 
The engine will suck in around 300grams of air per second as standard.

As all air going to the engine will pass through the unit it will have to be able to provide the 300g/s + whatever else to achieve the power gain otherwise it will actually restrict flow.

As pointed out above, the power required to do this is astronomical compared to what a 12v batttery can provide.

Regards

Andy
 
If you want even better performance, add 50ml of snake oil to a tank of petrol.

Reminds me of those stupid Hiclone things they used to make from coke cans and sell for £80 when they first tried it on. :headbang:
 
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