Fleabay chip

[andyleaves]

Guys have a look.
What do you think?

http://cgi.ebay.co.uk/MITSUBISHI-GALANT-PERFORMANCE-CHIP-ADDS-30-BHP-MPG_W0QQitemZ220453982038QQcmdZViewItemQQptZUK_Car sParts_Vehicles_CarParts_SM?hash=item335414cf56&_t rksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1 |72%3A2136|293%3A13|294%3A50

might this actually work?

[Nutter_John]

no tis just a resistor

[foxdie]

For the lazy, clickable link HERE

Those chips are usually fake, infact they're not really chips, they're usually just a capacitor or a resistor (and switched in this case) that short out the oxygen sensor to make the ECU think more air is entering the engine and adjusts its fuelling accordingly.

I personally wouldn't risk trying one of these on beasts as complex as ours.

[Turbo_Steve]

And, in fact, if it goes on the Lambda sensor the ECU will simply "learn" around it: all it'll do it muck up your fuel economy on cruise.

If it's inline with the airflow meter, it'll save you masses of fuel by stopping the engine from running: our MAFs user frequency rather than volage to determine load. You could concievably fit it inline with the intake temperature line (which I believe is still voltage based) however this will just cause you to hit the wrong part of the load table: less advance = less power.

They're an utter, utter waste of money.

[andyleaves]

figured it might be another gimic like the elec superchargers...
However, I do a lot of RC air flying, primarily electric. Now a mate of mine got one when they first came on the market, with the standard elec motor, obviously not pushing out enough air.
Now what if I could effectivly at least, and I do mena at least tripple the rpm's of the impeller?

Most electric planes, and I have several of these (Damn expensive!) user brushless motors now. These work quite simply,
if a brushless spins at 2000 rpm, per volt, if you now push 12 volts into it, it will spin up at 24,000 rpm. when I had a look this runs on a simple ducted fan technology airmodelling has been using this for years....

http://www.e-flight.co.uk/shopexd.asp?id=414
the motor above spin at 2980 per volt slaped in a EDF unit (Electirc Ducted Fan) this will it the right plane hit speeds of around 160+mph really scary at that speed

Now the motor above has been designed by e-flite, very well trusted company.
Well lets put this into perspective,

Average electric Plane £100.00
Bettery LI-poly £50
Servos x4 £70
Reciever £30
Speed controller £70
Brushless motor £60

Thats £380.00 flying around at speeds between 60 - 130 mph can cause serious damage, in the wrong hands.
Just thought, it might be wroth trying that out.
Thoughts would be really welcome.

[Nutter_John]

the small turbos on the vr4 will runn at 160,000 rpm and push around 170cfm , I can not see that your electric motors can push anywhere near that amount of air .... And how do you power the motors !!!

[andyleaves]

believe it or not the smaller the inline motor the more it pushes, on top of that you can change the angle of the impeller, not by much mind you would need to change the impeller to get more rake, you could run the motor off of the main bat, but that woulod drain it so quick, alternativly, you could also run a seperate lithium poly pack, on the motor above upto 15 volt's you can get bigger motors that will take up to 24 volts....
But the cost for the speed controller would be almost as expensive as a complete nos kit.
Just a thought as I did not know how much the turbos pump out.
Gonna keep thinking about this one, and then try to find a way to work out the performance of it. However I think it might end up not be as cheap as a turbo install...

[Confused]

The electric one also won't do anywhere near well when there's a huge restriction behind it - ie an engine!

[Turbo_Steve]

Electric inlet fans are, as everyone has said, either too weak or too lossy.
You will actually get more forced induction from the airpressure at the front of a moving car than you would get from an "inlet fan". If you want some proof, take a high speed, high flow fan, and attach it to the inlet, running flat out.....the engine revs will rise slightly, and you'll hear the fan labouring against the throttle body. Open the thottle a tiny bit, and you'll hear the fan relax, as it has clear air flow: fairly equal pressures on each side. No floor the throttle briefly.

At about 5000rpms, the fan spins like a whirling dervish, and the motor screams, as the engine pulls air through the fan at a rate it's bearings were never designed for.

The essential difference here is that you're talking about fans.....what you really need is a compressor.

To give you an idea, the kind of motor size you need if your RPMS are below 90,000 will be around the size of a flymo.

[elnevio]

The return of the fan-in-a-box!

[andyleaves]

Guys dont get me wrong, now even I know that the edf unit's supplied as electronic superchargers are a complete waste of time but then 4-5 years ago, in the model world peeps were saying that electric motors were only for small learn to fly models....

However, bear in mind that all of these are electric,
3D Aerobatics have a look at about 5mins in

Jet Liner

180mph electric pylon racer Stupid fast

As I said, anything is possible, it wont be long before it can be done...

As for the size of a flymo motor? even the 3D acro plane the motor is only the size of your fist..
But you are all right at the moment I think more damage than good, however with honda, making moves that way...

[Turbo_Steve]

well, look at it this way....if you took the turbos off a VR4 it'd make about 180bhp absoloute max.

So.....it could said that the turbos are effectively an 80hp motor.

Find an 80bhp motor that will turn a fan that will generate more than 15psi....and you're onto something!


(EDIT to add that the 15psi is relative to vacuum....that's 1psi above atmos.)

[confusis]

well the ohc 6a13 (like in the ST/ST-R legnums) make 175ps