Electric turbo

[pullbackandgo]

Now, before you all shoot me down in flames, I'm not refering to one of these "ERAM" or "TURBOZET" things.

What I am thinking for the moment is;
-using an old turbo which has had the exhaust side removed
-a high powered electric motor grafted on instead
-a micro-switch to activate it at what.

This will all depend on what revs a turbo needs to be spun at in order to get usable boost, and also if there is a motor with enough torque and rpm in order to provide this boost.(And without using a HUGE amount of current)

I'm real keen to get this goin on my F8B hatch with a small turbo, and maybe a cordless drill motor, or remote control car motor....
or one of these

http://www1.jaycar.com.au/productView.a ... BCATID=306

[Brayden]

Well the motor would need to be able to spin in the vicinity of 10-20 thousand RPM in order to make useable boost, but the bigger problem is getting a motor that has enough torque to drive against the air pressure that it is creating. I don't like your chances of finding a 12V motor with that sort of torque that wouldn't overdraw the power supply.

[Josh]

There's a very good reason why we go to so much effort to recycle the kinetic energy of an engine's exhaust gases for these things...

[Colin]

stop thinking josh it will hurt after awhile

[Josh]

If as much alcohol passed through my brain as does yours you'd probably be right...

[Colin]

i'll drink to that

[pullbackandgo]

So with that motor from Jaycar, the 4.9kg/cm of torque wouldn't be sufficient?? It spins at enough rpm (18800rpm), so I'm thinkin it might be a goer...

Col, is your turbo screwed even for this application??? I could give you some cash if it's useable....

[Colin]

na its still on the car it works well just smokey

[gazuga]

find a busted shredder and rip the motor out of that, huge torque...might be a bit big tho, and im not sure what rpm they spin too..

theres one coming into work later today for me to fix ill see if i can find a rev range... if its what you want and the rest of the machines busted ill rip it out for you

[Josh]

Firstly, how do you intend to operate the electric motor?

Secondly, how are you considering addressing the issue of fuel pressure.

[gazuga]

nope shredder only spins to 3k.. half a horse of pure grunt tho

[pullbackandgo]

This is why I have put up a forum topic for it....

I was planning on having a microswitch connected to a relay that switches at what, but i'm also pondering the theory of a variable speed switch, that makes it act like a normal turbo.

As for the fuel issue, I have no idea....

Anyone???

[Brayden]

Sorry, I didn't explain myself properly.

You will need a motor that spins at 10-20 thousand RPM just to create positive pressure. This is where a turbo BEGINS to produce boost, in order to keep up with the increased airflow the engine requires at higher RPM that figure can increase to a ludicrous number like 100k.

The problem with running positive pressure through the standard carby is that it will force the fuel back down the fuel lines or shut the float, subsequently making it run lean or not at all.

Lastly - what on earth is what?

[Shayne]

haha i am useful what is wide open throttle

[Brayden]

Ahh yes! Thank you for clearing that up.