Electric supercharger turbo

[nipper76]

Hello peeps,
just browsing Ebay out of bordem, and came across this.....

Item number: 270212817050

how much Truth is their in this?? or is it just another pointless amount of money ?/

cheerz peeps

[nipper76]

i guess it would be easyer for me to add the link

http://cgi.ebay.co.uk/Electric-supercha ... dZViewItem

[mjb]

don't bother, unless you also have one of those clip-on magnets for your fuel line which claims to boost powah by 500bhp by aligning the cosmic energies...

[steve_earwig]

I think the principle would work because it's forcing more air in, just by a different means. However, in practice the gains would be minimal. You'd also need a remap.

[mjb]

Superchargers force bucketloads of air into the engine using (as i understand it) the raw mechanical power of the engine itself. An electric motor doing the same job would be huge, cost several thousands of pounds, and at a guess would require lots more power than the alternator could provide.

I reckon these things might slightly boost low-end power at the expense of a huge fuel economy drop, but cause a power LOSS at the mid to top end due to them being too weak.

[Welly]

One of the motoring mags did a test on these (can't remember who) and they found that after a certain revs then they caused a restriction in the natural induction flow and so reduced engine power

I don't even think it did any good at low revs

[teamster1975]

Like mjb said, another gimic just like the fuel magnets
It does look snazzy though, and could double as an emergency hair dryer for the Mrs! Or inflating the kids rubber dingy at the beach!

[jameslxdt]

ther isnt even any logic to these, turbos and superchargers compress the air, they dont blow it into the engine
it will just cause an intake restriction and cost you power, if it feels like you've gained power its the placebo effect

[stevenlizuk]

I've been investigating this after seeing these on the net.
The principle is sound but unless the blower fitted moves more air than the engine the only benefit is from the better airflow from removing the panel filter.
I asked one company how much air their fan moved and they were not able to reply.
Most of these units just dont move enough air to be effective.

If you fit a much higher power motor to an in-line bilge blower and fit an induction kit to the end of it it would make a difference, but only in the region of 5 or so extra horses.
K&N style filters can be had cheaply from the bay and a high power motor will set you back around £30 add that to a bilge blower (largely to get the casing and motor mount) £20.

I worked out that my 2.1td is moving 2362.5 cubic meters of air per minute at 4500rpm.
If the blower isn't moving as much as that it's not helping.

If in doubt ask the maker how much air their thing moves, if they don't know that's a clue as to whether it's likely to work or not.

Steve

[mjb]

ther isnt even any logic to these, turbos and superchargers compress the air, they dont blow it into the engine

Actually they do blow it into the engine - faster than the engine will take it, causing a pressure build-up (compression). You can supercharge any car by strapping a big leaf blower to the air intake pipe for a serious power boost, but the problem is you need to power the leaf blower.

[steve_earwig]

I can't see it being very useful though, unless it's got one massive fan (and a wastegate). It's a bit like the electric winches you get on 4x4s, they just aint very powerful and they kill batteries but if you get a hydraulic one powered off the engine then you can pull houses down with it. Or even hang your landrover from a tree...

[teamster1975]

Or even hang your landrover from a tree...

Very useful for parking in London! You could modify that & hang your landrover from a lamppost! (A big lamppost mind you!! )

[Captain Jack]

Of course, they are even more pointless on a turbo-charged vehicle!

[pugsport]

I saw a V6 a few yrs ago at a show which had a supercharger fitted, cant remember what other mods he had done but it knocked out 400BHP, the owner was a copper. The power was verified by a rolling rd test by a car magazine, forget which one.