just a scam like the Tornado, slick 50, and other gadets out there.

 

Is this a real thread?

Dude I heard changing your oil adds 15 rwhp.

 

We'll it certainly does suck!

 

Haha, yea I can't beleive that there is actually some people that would defend these superb electric super****chargers -the whole idea is sacriledge

 

anyone have the l98 corvette or camaro... Do you remember the fin that went between the two butterflys. They claimed that gave the tpi motor twenty extra horse.

 

you can actually change hp that way
I've seen a 10 HP variance just by switching oils.

 

I came back to my old stomping ground, The Corvette Forum, by finding this thread on Google while researching this topic.

I read about the 'Full On Speed' electric supercharger and thought it could be valid. It uses an aluminum housing, titanium impeller shaft and 2 electric motors, one on each side, which are supposed to give total of 200 ampere current draw and provide impeller speeds of 100,000 rpm. The system costs around $1000.

Sounds plausible.

So I did the math. 14.4v with engine on x 200 ampere current draw = 2.8 kw. The problem is that with low voltage DC motors, their thermal efficiency is terrible. That is why hybrid cars use 300+ volt AC motors. With a 12 volt motor, the current has to be 25 x as high, leading to huge losses of energy as heat, due to bulk flow of electrons. With an efficiency of only 60% (40% lost as heat), 2.8 kw gives you roughly 2.2 hp output. Hardly enough power output to get any significant air pressure at high CFM numbers. Additionally, the 200 ampere draw would cause another 6hp loss in parasitic draw from the alternator due to high current 12v electrical generation with low thermal efficiency. One last consideration is heat dissipation by the motors. If they really are drawing 200 amps of current, they are going to get really hot. Imagine running your engine's starter motor on a continuous duty cycle of minimal load/full load operation. It would burn up within hours.

After doing the math I am very skeptical.

To back up my skepticism, none of the manufacturers have component systems for any particular applications, address fuel curve issues that arise with increased air flow, and there are no valid dyno charts or open forums out there to validate any of the manufacturer's claims.

Until end users start showing REAL results, I would stay away from this 'technology.'

 

Electric superchargers are a joke... they do nothing
see why here: http://www.superchargertuning.com

 

I have seen supercharger test cells. They typically use 100HP - 150 HP electric motors to spin the supercharger. That gives you a sense of the scale
Cruisemon's numbers sound about right.
Have you ever seen a 40HP electric motor ? It doesn't fit in the palm of your hand. And as he pointed out, your car does not have the power supply to drive it.

 

Why is this even a topic? A typical belt driven SC uses 15-20hp-imagine how LARGE a 20 HP electric motor is and the alternator you would need to drive it-this is why turbos are so attractive-use the stuff your just throwing out the tailpipe-free HP-no parasitic draw from the engine.

 

Everybody knows that a chrome plated Maxwell-House coffee can muffler can boost your horse-power. If you need proof, just listen to the buzz from your honda-boy neighbor's car. Something that loud MUST be fast.

 

Hey, this thread was last updated, at the same time you became a forum member. Coincidence? I think not..........

IBTL.

 

your point?

 

you don't reopen 3 year old threads

 

No.

 

If I have broken a forum rule, I apologize. If not, kindly advise why this is an issue for you. Not my intent to create problems, but I took your response as sarcastic, rather than constructive.

 

I know this is an old thread but the amount of wrong info in it was too much. Lol. So I will get IBTL...

I just wanted to add that the explanation of electrical horsepower is wrong. The parasitic loss caused by a belt driven supercharger has nothing to do with the horsepower needed to be made by the electric superchargers motor. The actual horsepower an electrical SC can make on an engine is going to depend on the force needed to spin a compressor vane at a specific speed needed to force x volume of air at x amount of pressure. The design of the vane and compressor can make the amount of power needed vary. (Example: the difference in a 6amp vacuum cleaner vs a 12amp is only the vanes. The 12amp vane has more fins, moving more air yet increasing load, hence the higher amperage even though the motors are identical) So, if a belt driven SC uses up 30hp through parasitic loss you will NOT need a 30hp electrical motor, which btw would be huge. We are talking about an electrical motor being used to power a compressor or vane, not a drivetrain. So to get your cars engine to make 30hp more doesnt mean youll need a 30hp electrical motor.

 

For a V8 engines a real electric supercharger would need alot of amperage. Even if you used the electric supercharger in the same manner as NOS for a part time power adder it would still not be practical. Electric Superchargers are best suited for small displacement engines. For V8 engines a CO2 or compressed air powered supercharger could be used like NOS as a part time power adder.

http://www.b2belectricsupercharger.com/

 

Back from the dead ?

 

Yes. You broke a forum rule. I believe the cut-off is 90 days to reopen a thread.