Custom Made Electric Supercharger

[Callum14]

CLOSED


So, I've had some experience with designing and creating small gadgets in the past but nothing like this. This is only as an experement, and I guess it's not only for v6's but I'll be testing it on my Calais (on a track of course ;D).

The Car
At the moment it's bog stock, I'll be working on getting extractor's, rockers, cai, memcal, catback, manifold lifter and a few other small bit's and pieces over the next few months. I can't fit a supercharger or turbocharger because it's my daily, so I'm going to play around with this for fun.

The Plan
I've seen a few dogey electric superchargers before which are all made of plastic which claim greatness, I'm going to mill my own and try to design one that actually works. Planning to make it fully out of alu, and create a turbine type cylinder.

Problems
Small powerful electric motors, I'd probably be looking at 24v motor from Delta fans (enterprise grade server fans).
The enclosure would have to be about 15cm long max, and I'd like it to make my own air intake pipe to go from the Air box to the Intake Manifold, so It would most likely only be able to be a maximum diameter of 80mm (which causes another issue). what happens then is at some point the actual amount of space inside would go down to about 70mm, which would be suffient.


Sorry for the pointless thread, I thought it might be something cool to try and play around with, seeing if I could actually make some extra power by using an electric motor. Might work, might not work, we'll see if I get that far

[calais24/7]

good luck mate lol, i dont see why you cant put a supercharger on just cause its your daily tho?

[someguy360]

it won't do anything other than restrict air flow giving you the opposite of what your looking for.

PC/Server fans don't spin anywhere near fast enough to make a difference.

Thats why none of the ones you see on ebay work.

Not enough pressure, you are essentially just blocking your intake

[kcpwns]

Hmmm I don't think it would create enough pressure? It'd need to be a big #### off electric fan

[Not_An_Abba_Fan]

I don't know if you have had any exposure to how an engine works or how much flow even an NA engine generates through it's intake, but as said, forced induction requires huge RPM. For example, a turbo impeller can spin up to 150 000 rpm, a supercharger typically spins at half that speed. Lets see a piss ant little electric fan spin that fast.

[Callum14]

^^ Above post's have made my mind up Thank's for the quick support :P Yeah the restriction of air was the big problem, and you've all said how much impact that would have on a NA engine Cheers.

Delthread.bat

[Jesterarts]

Electric superchargers don't work. The electric fans don't put out enough pressure but chew alot of power.

Good luck, but and it will be interesting to see what you come up with.

[immortality]

I have a solution for you. A BIG petrol powered leaf blower

I have also seen guys standing in front of a car on a dyno with a bottle of nitrous and just opening the valve a little bit and letting the gas get sucked into the intake (not practical on the street though).

Seeing as you (should) know the cubic displacement of you engine (and it being a 4 stroke engine it requires 2 revolutions to consume that volume of air) you can quickly see how much air your engine consumes in a minute even at idle.......

Cheers

[VT-565]

A lot of talk about pressure, not much about flow or delivery volume. Pressure is the result of restriction to flow, just so you guys know. A supercharger or turbo that can flow more atmosphere than the engine can consume is making 'boost'

[monkeys437]

A lot of talk about pressure, not much about flow or delivery volume. Pressure is the result of restriction to flow, just so you guys know. A supercharger or turbo that can flow more atmosphere than the engine can consume is making 'boost'

"Pressure is the result of restriction to flow" Doesn't sound right. Pressure is the result of work being done on the fluid. The airflow comes as a result of the pressure difference. Pressure drives flow, Flow doesn't create pressure

[Not_An_Abba_Fan]

^^ Exactly. I have always said an engine doesn't suck, the atmosphere pushes.

[immortality]

^^ Exactly. I have always said an engine doesn't suck, the atmosphere pushes.

Were not going to get into this argument again but for a simple analogy, take a syringe, block the end of it and pull the plunger down.... (what do you get?), then tell me that that isn't what is happening inside a engine when the piston travels down the bore. I do agree that atmospheric pressure then does also push air into the intake/cylinders but at the end of the day you get a vacuum inside the intake manifold (unless using a boosted engine).........

[VT-565]

The airflow comes as a result of the pressure difference.

In this instance, the turbo or supercharger is mechanically creating flow. If you took the engine away, would there be any 'boost' pressure?
This is what I was getting at. In an N/A engine, I agree with you, when the intake valve opens and the piston is travelling downwards in the bore, this mechanically creates a vacuum which the air pressure outside is trying to even up, hence air enters the cylinder. But for purposes of the forced induction argument, you are talking about a 'compressor' attached to the engine, delivering more air than the engine can consume (engine being the restriction in this case) building your 'boost' pressure.

[monkeys437]

In this instance, the turbo or supercharger is mechanically creating flow. If you took the engine away, would there be any 'boost' pressure?
This is what I was getting at. In an N/A engine, I agree with you, when the intake valve opens and the piston is travelling downwards in the bore, this mechanically creates a vacuum which the air pressure outside is trying to even up, hence air enters the cylinder. But for purposes of the forced induction argument, you are talking about a 'compressor' attached to the engine, delivering more air than the engine can consume (engine being the restriction in this case) building your 'boost' pressure.

Its the same principle for an NA or forced induction. You're using mechanical work (turbo, s/charger) to increase the pressure inside the manifold.... its exactly the same principle as filling up a scuba tank. Then, once a valve is opened (intake valve) the fluid flow is driven by the pressure difference between the manifold and cylinder. The greater this pressure difference (the higher the boost) the greater the driving force pushing air into the cylinder.

[Dr HaxZaw]

i should get one of the compressors from work... a nice 400kpa at 3000 rpm

[acarmody]

diesel Ingersoll-Rand Rotary Screw Air Compressor 400 with dryer 400CFM | eBay

Just sayin.........its electric and it would work.

[Dr HaxZaw]

Just sayin.........its electric and it would work.

why does it say deisel and have an exhaust??

[acarmody]

why does it say deisel and have an exhaust??

............shit, I meant to post the one below it.

This is what happens when I dont get enough porn, wait, I mean sleep.

HEAVY DUTY CHAMPION INDUSTRIAL AIR COMPRESSOR 500CFM | eBay

[vn_v6]

AWW YEAH 12 grand, might aswell put an 8 then charge that with 12 grand.....not electriically either.

hey u might get it to work, but hybrid cars work to...are they cool?.........HELL NO.

this thread is full of fail.

[DAKSTER]

diesel Ingersoll-Rand Rotary Screw Air Compressor 400 with dryer 400CFM | eBay

Just sayin.........its electric and it would work.

Its electric?