I keep seeing the electric intake surchargers on line and what not and I'm wondering if they will add horsepower and torque as they say they will or I'd it is a waste money

 

A real supercharger will cost you thousands, not $50. If it sounds too good to be true it usually is. Those are a gimmick. A little blower fan isn't going to give you anything.

 

Ok thanks they just say that they will a 5% torque HP and better gas and the will body 250 cfm through your intake. Do you think it would make acceleration quicker with it pushing through at 250 cfm

 

A typical 305 pulls twice that much air through at WOT. If anything, it will cause a restriction.

 

Never seen the ads but an electric supercharger would never work. Well it will, but you won't gain anything.

A blower manufacturer uses a 15HP 220v electric motor to spin up their blowers to test them. They don't build any boost, just spin them. Top fuel dragsters use up around 400 HP from the engine just to spin the blower.

Your 12v alternator typically puts out anywhere from 60-130 amps. In order to provide enough amperage to spin a 12 volt motor to drive a blower, You would need an alternator about the size of your engine.

An electric blower may work on a very small single cylinder scooter engine but could never provide enough air or boost for anything larger.

An engine is a vacuum pump. It draws in atmospheric pressure as the pistons are moving down in the cylinder during the intake stroke. To provide boost, you need to push in air at higher than atmospheric pressure so that the air is being forced into the cylinder as the intake valve opens. At roughly 15 pounds of boost (14.7 psi or 1 bar) you have technically doubled the size of the engine because you've forced twice as much air into the cylinders as the pistons could pull in on their own. It's not about the CFM number but boost pressure. If the electric blower cannot produce boost inside the intake manifold while the engine is running, the performance gains will be zero and as mentioned above, probably create a restriction.

 

Alright appreciate it that's what I needed to know. What would be a Goo a/v to use or could I even with a v6 without it blowing up?

 

GM did the supercharged 3.8, but you'd be better off buying the whole motor and transmission as a pullout from another car than mess with your own more than likely. Either way it's probably not going to be cheap.

 

Well, a little more than that - from http://www.carcraft.com/techarticles...rchargers.html : "Miller estimates it takes between 900 and 1,000 crankshaft horsepower to drive one of his superchargers."

Of course, those top fuelers make about 4-5x the power per cylinder that a 305 makes total.

 

hah! check this out. it really is a k&n kit.

http://compare.ebay.com/like/1304988...=263602_309572

 

The filter is from K&N, but the rest isn't from what the details say on it. I'd be real curious as to what their main webpage says about this.

 

Yeah there is an add on the bottom of this page right not that says it will give you 60 HP

 

Nope. Little electric fans will not provide any gains. Pure snake-oil...

 

Incorrect. Those little ***** things do actually work on tiny motors, they do not see any significant or noticeable gains though. It's like the videos of the leaf blower on a 4 cylinder, it gained something like 15 HP. On a SBC it had no affect though.

As stated, if it does anything at all it will actually bottle neck your flow on a larger motor.

 

Don't forget to add the Tornado also, good for like another 10 hp LOL. Crazy thing is that ppl actually buy this crap. Most lawyers have more morals then these sellers.

 

That's sad news, never really thought about it. I've always thought about how neat it would be to have a sort of supercharger/turbo hybrid.

Basically a regular turbo, that at low RPM is spun by an electric motor, that kicks off past a certain point, to full exhaust power, to maintain boost throughout the whole RPM range. Sort of like an A/C clutch setup.

Then again, if something like that were practical, it would have been done by now. Guess that explains it. Neat in theory though, sort of like anti-lag right at the root of the problem.

 

You also have to remember, a blower or turbo doesn't produce pressure in a straight line. As rpm increases, the amount of boost pressure also needs to increase to keep up with the demand of the engine. An electric blower would produce a constant pressure. That may work fine for an engine that operates at a constant rpm but won't work over the normal operating rpm range of an automotive engine.

 

lmao do not buy that piece of junk...i kid i went to h.s with thought he was hot **** and knew everything...he installed one of those electric blowers (no more than an exhaust fume blower from a boat) in his *****...the cars sucked in the plastic fanblade through the intake and testroyed his motor...haha i would only imagine what a gm v-8 would do to one of those things

 

his ***** ** not **** lol my bad on the typo

 

MB published some data years ago on one of their superchargers in an SAE mag I had. At WOT and about 10 PSI of boost on a V6, the supercharger consumed around 65 HP. On a V8, the supercharger will probably consume more power than most 4 cyls. make.