Electric Superchargers

[-> Mason <-]

i was wondering if you guys knew if these cheapo mods work? my buddy chris is thinking about getting one for a little help in his cougar and i've seen a couple ones that gained 30whp from these.....are they for real or not?

[CivRacer95]

Nope, they aren't worth the price, cost, or time a day. Have you ever met any real car enthusiast who actually has one installed? Not likely, or ever. Just do some research, but to save you the time, they aren't worth it at all.

[clawhammer]

Waste of money.

[CBFryman]

Ask yourself this question, where does the supercharger get its power from?
The Chargin System
Where does the charging system get its power?
The Engine (alternator)

At what efficency can the alternator convert mechanical work into electricity, not exceptionally high
At what efficency can an electric motor turn
not very efficent, ever notice how electrical motors get hot under extreme loads...ya that is lost power.

what ammount of power would it take to turn the motor at the speed to turn a turbine fast enough to flow enough air to give any sort of boost or increased flow (flowing air faster than the engine can pull on its own)
a lot.

in order for these things to work you would need the alternator to store a charge in a few deep cycle batteries and then isolate the circut from the alternator to the supercharger and turn the super charger on draining the batteries, with the current flow needed it would be rather quickly...
and you wont be able to flow all that much more either. then when you are finished the alternator has to recharge the batteries, making you loose power that way any way.

Think of it this way, a 2hp leaf blower flowed enough air to gain 10hp on a honda accord...it didnt create boost, just removed any vacume fro mthe manifold by flowing the extra bit of air.
2hp=aproxamitly 1400w
lets say the motor works at 60% effiecncy...so to create 1400w of rotation energy yo uwould need 2300w of electrical energy from the batteries. at 12.6v that is 182.5a draw constant. in a battery that has say 600cca it could provide 600a at 0 degress celcius for 30sec, so say 660 at normal temperatures... 660/182.5=3.6 3.6*30=108sec of extra performance...
now to charge the battery lets say your alternator is also working at 60% efficency. 2300w/0.6= 3800w taken from the engine to recharge the battery
3800w/740w (aprox 1hp) = 27hp... granted most alternators cant flow the 260 some odd amps to charge it in one second so that would be less power taken ofver a longer period of time but still...you are loosing power.

so all in all they CAN work but you are better off using a turbo or nitros if you want to controll when you have boosted performance.

[i3o2Matt]

lol...

[drftk1d]

Originally Posted by CBFryman

Ask yourself this question, where does the supercharger get its power from?
The Chargin System
Where does the charging system get its power?
The Engine (alternator)

At what efficency can the alternator convert mechanical work into electricity, not exceptionally high
At what efficency can an electric motor turn
not very efficent, ever notice how electrical motors get hot under extreme loads...ya that is lost power.

what ammount of power would it take to turn the motor at the speed to turn a turbine fast enough to flow enough air to give any sort of boost or increased flow (flowing air faster than the engine can pull on its own)
a lot.

in order for these things to work you would need the alternator to store a charge in a few deep cycle batteries and then isolate the circut from the alternator to the supercharger and turn the super charger on draining the batteries, with the current flow needed it would be rather quickly...
and you wont be able to flow all that much more either. then when you are finished the alternator has to recharge the batteries, making you loose power that way any way.

Think of it this way, a 2hp leaf blower flowed enough air to gain 10hp on a honda accord...it didnt create boost, just removed any vacume fro mthe manifold by flowing the extra bit of air.
2hp=aproxamitly 1400w
lets say the motor works at 60% effiecncy...so to create 1400w of rotation energy yo uwould need 2300w of electrical energy from the batteries. at 12.6v that is 182.5a draw constant. in a battery that has say 600cca it could provide 600a at 0 degress celcius for 30sec, so say 660 at normal temperatures... 660/182.5=3.6 3.6*30=108sec of extra performance...
now to charge the battery lets say your alternator is also working at 60% efficency. 2300w/0.6= 3800w taken from the engine to recharge the battery
3800w/740w (aprox 1hp) = 27hp... granted most alternators cant flow the 260 some odd amps to charge it in one second so that would be less power taken ofver a longer period of time but still...you are loosing power.

so all in all they CAN work but you are better off using a turbo or nitros if you want to controll when you have boosted performance.

cliff's notes: they suck ass

[-> Mason <-]

yeah i told him that they weren't worth a shit right when he mentioned them....but meh, i figured why not ask....

[SiGNAL748]

A leafblower on the other hand....