--Electric Supercharger??--
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Joined: Mar 2006
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--Electric Supercharger??--
This might be a dumb question, but i was wondering if these "electric superchargers" that you find on ebay will actually do anything? Or are they a complete joke? I wouldnt expect huge gains from them or anything, but how come i never hear of people sticking these on the end of their cold air intakes?
i ain't rite
Joined: Mar 2005
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From: Marlboro Mental Hospital.
because they work just as well as fuel line magnets and the turbonators.
the only thing they are good for is taking money out of your wallet, and stuffing it into the sellers wallet.
the only thing they are good for is taking money out of your wallet, and stuffing it into the sellers wallet.
Post Fiend
Joined: Oct 2003
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From: New Jersey
They sell those things because the profit margin is high, and uninformed dipsticks buy them.
If I didn't have at least *some* morals I'd be a zillionare by now selling such trinkets.
Though last week, I welded together a pair of fart pipes for some neighborhood kid and hit him for $200. One of them is functional, the other sits on the driver's side as a "poser" fart pipe.
A fool and his money are easily parted.
If I didn't have at least *some* morals I'd be a zillionare by now selling such trinkets.
Though last week, I welded together a pair of fart pipes for some neighborhood kid and hit him for $200. One of them is functional, the other sits on the driver's side as a "poser" fart pipe.
A fool and his money are easily parted.
Post Fiend
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Might as well take their money if they are willing to part with it. Doesn't suit you, it seems to have suited him. I see no problem.
The electric superchargers though, that's just plain wrong. Perhaps I should try one on my mower? I might make a psi or two in an 850cc engine.
The electric superchargers though, that's just plain wrong. Perhaps I should try one on my mower? I might make a psi or two in an 850cc engine.
Post Fiend
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Geeze frederic, I've seen stranger things. I wonder how many folks would pay some money to have a kit made for their Craftsman?
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Post Fiend
Joined: Oct 2003
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From: New Jersey
I have no idea... but if my idea works... I may have to put together a generic kit 
Initial testing worked well, using a smog pump off my Olds and a long hose to the riding mower
Initial testing worked well, using a smog pump off my Olds and a long hose to the riding mower
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i ain't rite
Joined: Mar 2005
Posts: 65,507
Likes: 5,563
From: Marlboro Mental Hospital.
Originally Posted by frederic
I have no idea... but if my idea works... I may have to put together a generic kit
Initial testing worked well, using a smog pump off my Olds and a long hose to the riding mower
Initial testing worked well, using a smog pump off my Olds and a long hose to the riding mower
you have wwwwaaayyyy to much time on your hands.
Senior User
Joined: Apr 2000
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From: Central Pennsylvania
Ya know there is no reason that an electric supercharger wouldn't work. But the direct drive super doesn't lose power by transfering over to electric and then electric back to propeller. It drives the propeller directly off the crankshaft.
I'm wondering how big of a electric motor and how many amps it would draw in order to create something like 6 psi in a v10. How big of an alternator would be required and how many Horsepower would it take off the engine. Of course their would be some way of reducing the electric motors speed to account for engine RPM's and this would be as instantaneous as direct belt drive.
Tony
I'm wondering how big of a electric motor and how many amps it would draw in order to create something like 6 psi in a v10. How big of an alternator would be required and how many Horsepower would it take off the engine. Of course their would be some way of reducing the electric motors speed to account for engine RPM's and this would be as instantaneous as direct belt drive.
Tony
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From: Melbourne, Aus
Ya know there is no reason that an electric supercharger wouldn't work
They work - just no where near as well as a normal supercharger...
For 1. you would have HUGE current draw, a supercharger will draw propably about 1/4 (just a rough estimation) of the net power it creates straight from the crankshaft...
You are converting rotary power - electricity, back to rotary power. Much more efficient if you get it in its original form.
The long and the short of it. No thanks
They work - just no where near as well as a normal supercharger...
For 1. you would have HUGE current draw, a supercharger will draw propably about 1/4 (just a rough estimation) of the net power it creates straight from the crankshaft...
You are converting rotary power - electricity, back to rotary power. Much more efficient if you get it in its original form.
The long and the short of it. No thanks
Senior User
Joined: Apr 2000
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From: Central Pennsylvania
Yes, hmmmm well, I think... belt/direct drive would be most efficient. But I havn't seen anyactual studis on it. I don't think It needs studied really. But there are some alternators and electric motors boasting 85-90 % efficiencies.
But obviously, direct drive is close to 100% efficient with allowances for any belt slippage or belt/cog tension.
These electric supers that are sold on EBay would probably only work on 1.6-2.0 liter engines. And I dont' know if they can obtain the rpms needed to get to create enough boost to make any real difference.
But, I'm wondering how much energy (and how many alternators and batteries) would be needed to make it work.
Tony
But obviously, direct drive is close to 100% efficient with allowances for any belt slippage or belt/cog tension.
These electric supers that are sold on EBay would probably only work on 1.6-2.0 liter engines. And I dont' know if they can obtain the rpms needed to get to create enough boost to make any real difference.
But, I'm wondering how much energy (and how many alternators and batteries) would be needed to make it work.
Tony
Last edited by Tony G; Nov 5, 2006 at 02:14 PM.
Posting Guru
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From: Sapulpa OK
I have heard that on a top fuel dragster the parasitic losses in one of their blowers is in the neighborhood of 750 HP. On a street car I'm sure it would be a lot less, more along the lines of 60 HP.
Also just a note here, in order to be called a supercharger a blower has to raise the manifold pressure to above 7 PSIG.
Also just a note here, in order to be called a supercharger a blower has to raise the manifold pressure to above 7 PSIG.
Post Fiend
Joined: Oct 2003
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From: New Jersey
Originally Posted by fixnair
I have heard that on a top fuel dragster the parasitic losses in one of their blowers is in the neighborhood of 750 HP. On a street car I'm sure it would be a lot less, more along the lines of 60 HP.
Same for consumer grade stuff... spend 60HP, get 200HP (or so).
Postmaster
Joined: Jul 2001
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From: South Kitsap County, WA
Originally Posted by fixnair
Also just a note here, in order to be called a supercharger a blower has to raise the manifold pressure to above 7 PSIG.
These electric motors are nothing more than expensive fans.
-Kerry