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  #1  
Old 05-07-2006
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Electric Turbocharger

My friend is getting a couple free electric turbochargers from his warehouse sometime this week and is going to give me one. I have an auto trans in my truck, so would I still need a BOV seeing as how the throttle body stays open during a shift?
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Old 05-07-2006
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Hahahahahahahahahahahahahahahahahaha...
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  #3  
Old 05-07-2006
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Old 05-07-2006
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He deserves to laugh man.

I promise you, ONLY BAD CAN COME FROM AN ELECTRIC CHARGER!!

SERIOUSLY!!!

You lose flow!

Once again,

it will only hurt performance.

They are only made to take advantage of people and in NOOOOO case have they EVER shown to be an advantage. I doubt they'd add hp to a lawn mower.

Please dont put one on your vehicle. PLEASE!

Aaron
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Old 05-07-2006
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Just a lil explanatory quote for you.

By the way, most of those superchargers are bilge pumps for boats. And when this guy is talkin about getting 1 psi, he really doesn't know. Look at it this way. A supercharger/turbocharger can spin as fast as 100 thousands revolutions a minute. Fans, LOT less.

Quote:
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.

If someone wants to make a real, decent electric supercharger, I think there would be a good market for it, provided you made a decent product. But there is a catch. Contrary to what was said above, there's more to it than upgrading your injectors. If that were the case I'd have a turbo kit out for every car on the market. The powertrain control module of most cars is capable of measuring the air coming into the intake and adjusting the fuel delivery to acheive a proper air to fuel ratio - up to a point. First off, most of them can not sense pressure above atmospheric. That means that as soon as you develop boost, you are puting more air into the engine than it realizes. Second, they can only adjust the fuel curve up to a certain percent. So if you are blowing a whole lot of extra air in there it'll have trouble making it work. Third, the engine isn't that great at getting the air-fuel ratio correct once it's working very far out of the territory for which it was programmed. The best way to do it is to put the turbo on there, run it on a dyno with a wideband O2 sensor and then completely re-program the computer. That's the hard part.

The E-ram skirts around this by producing only one pound of boost. That's not enough to throw the computer way off, but just enough to make a measurable difference. If you could come out with something that produced a solid 3-5 psi then you might have a seriously marketable product with genuine performance potential.
Aaron
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Old 05-07-2006
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They will only help initial acceleration "feel", fooling you into thinking they are doing something.

When you look at the HP and amperage requirements to make a practical electric supercharger, you will understand why everyone laughs. It's takes some BIG 12 volt amps (several hundred) to make one for a SMALL engine.

The reason is that to have any boost at wide open throttle at higher RPMS requires the unit to have a "pumping" capability beyond what the vehicle requires in terms of CFM. The reason for this is that keeping UP with the airflow is not enough -- you must provide enough boosted PRESSURE in the intake to FORCE a greater flow into the cylinders.

Some small designs that are being sold to unsuspecting buyers fool their users into thinking they are doing something because the initial "throttle response" is higher. However, it's easy to provide "boost" at closed throttle, and some at at low RPM's. However, because the units can't keep up, they actually RESTRICT the flow at WOT at high RPMS! They are a net loss of HP.

This has been discussed, and those things tested, many times for YEARS and if it was worthwhile, you'd see some "real" manufacturers making them. They keep being sold like they are some kind of secret, ghetto HP mod -- they are really just a scam.


John Griggs -- Kennett Square, PA
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"Feels good to get SAS'd, don't it?"
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Old 05-07-2006
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will my moms hair dryier work too?!?!?!??!

OMG this is to funny.... dude...dude...just dont and sayed you never thought of it
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Old 05-07-2006
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seems like a bad idea to me
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  #9  
Old 05-07-2006
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Holy underwear Batman! I've never heard of such a contraption. The alaskan's got me convinced.
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  #10  
Old 05-07-2006
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You would be better off to put gas powered leaf blower in there instead. Then you could try to link up throttles and actually gain some improvement. Moreso weird looks on the street wherever you go
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Old 05-07-2006
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Attack of the turbonator.
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  #12  
Old 05-07-2006
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atleast you guys know what you're talkin about.. maybe I will just forget about it
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  #13  
Old 05-07-2006
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HAHAHAHA i thought the tornado had a good selling point of no Hp improvment's.
HAHAHA That's great! Havent heard that one yet!
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Old 05-07-2006
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Quote:
Originally Posted by Redneckstone
will my moms hair dryier work too?!?!?!??!
Don't lie Zach, we all know it's your hair dryer.
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Old 05-07-2006
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How else is Zach gonna keep his hair sexay without a blow drier!



Aaron
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  #16  
Old 05-07-2006
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^^^Nice...
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