no body offend you, but you Know the best , simply tune will not give you an ALS.
Simply impossible. You need hardware too.
By the way if you make a miracle happen , please let me know

 

You don´t need any hardware for ALS on an EVO X.

Every group N4 Rally car has Anti-Lag and it´s not allowed to use other parts.

I made tests up to 30Psi via ALS on EVO X. It´s that simple with the X and a Motec, Pectel, etc...


And I´m sure it can be done with the stock ECU. You only need the right maps.

 

I'm curious to hear how you keep the turbo spooled on decel with no engine load with just mapping... or are you just talking about between shifts?

I'm not challenging you, I'm genuinely curious.

 

Really? What makes you think that?

 

b'cos it has the capability to do so and i bet ya it's on it's way

 

None of the N4 rally cars with ALS use the stock ECU and that's what this topic is about I think...


For those that are still discussing what ALS is and you don't understand, I sourced something for you

When the driver lifts his foot from the gas pedal the ignition timing is altered with sometimes 40° or more of delay (retard) and the intake air and fuel supply mixture is made richer. The inlet butterfly is kept slightly open or an air injector, bypassing the inlet butterfly, is used to maintain air supply to the engine. This results in air/fuel mixture that keeps getting in the combustion chambers when the driver no longer accelerates. The ignition being severely delayed, the air/fuel mixture reaches the exhaust tubes mostly unburned. When the spark plug fires, the exhaust valve is starting to open due to the ignition delay mentioned above. Additionally, the exhaust temperature being extremely high, the unburned fuel explodes at the contact of the exhaust tubes. Luckily the turbo sits right there and the explosion keeps it turning (otherwise it would slow down since its intake, the exhaust gases, is cut-off). The effect is vastly lower response times with some downsides:

A quick rise of the turbocharger's temperature (which jumps from ~800°C to the 1100°C+ region) whenever the system is activated
A huge stress on the exhaust manifold and pipes (mounted on a street car a bang-bang system would destroy the exhaust system within 50-100 km)
The turbo produces significant boost even at engine idle speeds
The explosions which occur in the exhaust tubes generate important flames which can, sometimes, be seen at the end of the exhaust tube
Reduced engine brake
The ALS effect is mostly dependent on the quantity of air allowed into the engine, the more air supplied the more the ALS effect will be noticeable. Consequently ALS systems can be more or less aggressive. A mild ALS will maintain a 0 to 0.3 bar pressure in the inlet manifold when activated whereas, when inactive, the pressure in the inlet manifold with the throttle closed would be in the region of -1 bar (absolute vacuum). Racing ALS versions can maintain a pressure of up to 1.5 bar in the inlet manifold with the throttle closed.
The bang-bang system owns its name to the loud explosion noises one hears whenever the driver lifts off. Most racing implementations have user selectable anti-lag settings depending on the terrain, usually three settings can be selected by the driver going from mild to very aggressive.

 

Really?

If you want we can discuss this on the Rally Ljubljana in March. I´m easy to find. Look for a yellow/blue EVO X

And there´s enough unused space in the X ECU. All depends on the code. For sure a lot of work, but possible.

What I wanted to say is, that you don´t need any extra hardware for the engine. Maybe you have to remove so steering servo. But that´s all.

 

Well, we don't necessarily need a turbo to make a car drive, but it sure makes it work better... doesn't it? Simply retarding timing and providing positive airflow is not a true ALS. Please look up the Secondary air system / ALS system from the CT9A and older evos to see one example of a hardware integrated system.

 

Yellow/Blue as in Gassner?

I'm all for discussing it in March! Rally Ljubljana hasn't been confirmed yet though

 

No ALS map exist so far for a sotck ECU as im aware of. But if it does im a buyer for that map. So please direct me there who makes that safe working map, with an on and off position for the ALS.

Now i know the electronic throtle body could have let you play the trick for the ALS vs the older versions with the cable set up, but you still need at least an ECU , which is a hardwere.

Tell me if im wrong

ROb

 

Thinking about this more I believe what Schneider is talking about could be done with the stock ECU, would just need to find some maps that are not defined yet, but are for the Evo 8/9, and possibly a small amount of custom code.

Then you would need to find somebody to test it. I like my turbo working and in one piece.

 

See that is a problem for me: "could" which is not exactly same as a can...

In theory almost everything is possible, but sadly usually racing is the place where most of the theory gets defeated.

But im all ears, if some one has it ....

 

I'm not talking about world peace or a new infinite power source here.

People said PSI-Target boost, map switching and speed density on the stock ECU "could" maybe be done at one point.

Now it can.

 

that would be awesome !!! i rather pay a tuner then, vs to get couple thousand $ ECU for bling only, in that case ... LOL

 

The problem here is the testing as somebody most likely is going to blow up a bunch of turbos and burn some valves or worse getting it working correctly.