ll-84camaro-ll

anybody on here ever see one of these electric turbos that run off the battery with a toggle switch. they are supposed to be good for 5+ lbs of boost and 30-40 hp gains.

i was just wondering if this would bee a good way to add horsepwer for CHEAP. kits are only $130 here is a pic

TraviZ

iTrader: (2)

rolling-robert

Major rip-off!

stay away from it as far as possible, it is bullsh*t, if it was for a mustang it would be great though...

/\/3\/\/l8l3

You can't pull air like a vacuum and get positive boost, you have to generate it.

12secformula

I think somebody posted about these so called electric turbos not to long ago, they are a hoax. They sell them on ebay all the time, I really hope nobody is dumb enough to buy one! I think the would actually restrict air-flow much more than they would help. If you do a search you will find atleast a couple posts about them.

MrDude_1

1, they cant pressureize air.. they arnt sealed enough.. just hook one up to a box/bag/whatever, and you'll see what i mean.

2. the engine needs more air then thoes can push. what that means is, as they spin, the engine is pulling more air thru them. so it spins faster. and faster. and faster.... until the plastic blades break of and get sucked into your motor.

/\/3\/\/l8l3

I honestly wouldn't doubt that it would give you some hp tq at low rpm (up to 2500 or so) and relaly rape you upper

onebinky

iTrader: (1)

How do you figure? Do a search on the subject, it takes something like 2600 amps to generate ONLY 35hp. Good luck finding an alternator that can put out that kind of juice.

rx7speed

isn't that how a roots style s/c works?
sucks in air like a vacuum and sucks enough to get boost?

rx7speed

isn't that how a roots style s/c works?
sucks in air like a vacuum and sucks enough to get boost?

onebinky

iTrader: (1)

Roots style compresses air between the massive 2,3, or 4 rotors and sends it into the engine. Once the soft(er) seal on the edge of the rotors wear out, the blower is pretty much useless.

83 Crossfire TA

iTrader: (2)

Most roots style blowers have 2-3 lobes on the 2 rotors. As far as Teflon seals, some old school street setups use them and they do dramatically loose efficiency as they wear. Most modern versions use tolerances that are close enough that there are no dynamic seals on the lobes.

MrDude_1

like he just said..

most modern ones, like the OE eaton blowers, have a cpating on the lobes.. the coatings wear into each other, creating a perfect seal, and they dont really wear out.




no.. well... kinda.

its a positive displacement blower. for every one turn, it will move X volume of air.
so if you're taking, say 224 ci of air, and shoving it into 152.5ci of space, you're going to create a higher pressure in that smaller space (aka boost)

on the top of the blower, its open, so yea air is moved towards it as in a suction... in the same manner that your engine displaces air and thats how it sucks more air in.


of course centrifugal blowers (and turbos) operate diffrently... they spin a blade at high RPM, forcing the air to go into a circle.
a circle has centrifugal force, forcing the air to press against the outside.. this compressed air leaves the blower, and assuming it keeps shoving in more air then is being used, it stays compressed. (im oversimplifying here, but it'll give you the idea)

infront of EVERY supercharger, turbo, ect is a intake. comparing the inlet to atmospheric pressure, theres a vacuum.

keep in mind, a supercharger/turbo/whatever only has to move air.. it doesnt make power. so the amp->hp gain doesnt mean squat.. you just need to know the amount of power needed to shove a quantity of air... and that would be very dependant on how you do it.. im sure theres a way to do it on a smaller displacement motor... i dont know how... but i do know a bilge pump or plastic fan, isnt going to be even close.

Doom86

I've seen those on Ebay, they are nothing more then "squirrel cage blowers" used for ventilation in rooms and buildings. That is a very small one at that, i bet it isnt even 80-90cfm. It has a current converter wired to it so it can use 12v insted of 120v house current.

I bet it doesnt help much at all with such a small blower. I have a 265cfm one that was used to ventilate my old garrage, they make them all the way up to 1000cfm for house current, but they are very large. With something restricting the intake end of of the blower fan it dramatically cuts the air-flow down, in all honestly i bet that thing doesnt push 40cfm.

Forshock 85TA

So we are all a little more "in the know", though knowing stuff about these is useless.

They are not 120v fans using and inverter. They are 12v, are actually 5-14v fans.

Some kits come with a POT that connects to the foot pedals, and adjusts the voltages of the dan, so at WOT it is the full power.

These move on average (at least the GOOD ones, GOOD=Still bad) over 850CFM.

The problem comes from the fact that the blower assembly cant build pressure like a SC/Turbo.. First you have the flexible blades, then the large spacings in the box design.

Just imagine, E.Charger with a Tornado, and ZMax, thats one hell of an engine :lala:

Doom86

There is no way a squirrel cage blower of this size with a restriction on the intake moves 850cfm, even with-out restriction.

Forshock 85TA

not a squirrel cage... shuold have been more specific i guess

http://www.electricsupercharger.com/

SATURN5

At full throttle, the e-RAM automatically activates to produce 1 psi additional air-pressure to the engine intake. This additional air-pressure results in greater air density reaching the engine. The mild level of boost from the e-RAM is measured by the engine management sensors, and the car's computer increases the delivery of fuel to keep the air-fuel ratio at optimum levels.

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LOL... 1 lb boost.