I have seen these oil lines on several JDM engines, but not on a USDM. Why are those there, and where are ours. Can anyone shed some light on this? I have highlighted the lines in question.

 

That is an anti lag system that is non operational....I think it has to be on there for homologation reasons

 

I was under the impression that this location is where the ALS(anti lag system) went. I don't have any other details.

 

According to Claud's definition it almost sounds like a blow by but for exhaust gasses...

EDIT: Buuut a blow by tosses dirty air from the head into the intake tract...this tosses clean air into the turbo manifold?

 

What is that thing then....would someone confirm?

 

Anti-lag. In order for the Evo to be a "production" race car, they have to make so many units that have all the basic hardware that the race versions have. These are for the anti-lag. They started with the Evo 6 TME if I remember correctly. Anti-lag opens the throttle body plate and opens the compressor bypass valve when at idle. It is non-functional on the street legal cars, but the hardware is still there.

How it works: Basically it makes your motor suck in too much air at idle (TB open) and then opens the CBV and re-routs this extra air directly into the exhaust manifold so that it hits the exhaust side of your turbo. This spins the turbo over so that when at idle, you have 0 PSI instead of aprox. 20 in/Hg vacuum. Hence anti-lag. You don't have to wait for your turbo to spool up when launching. You also need the ECU to change your timing a ton while at idle so that you have overlap so that it will be flowing the air properly. Yes, it kills your turbo, but it is pretty damn cool.

I am pretty sure that this is how it works. I might have the flow pattern listed wrong, but I think those lines go directly to the CBV. Look for more pictures of the FQ-300 and they will all have this system installed, just non-functional.

Josh

 

They don't go to the CBV but they do go to a valve halfway between the CBV and TB.
As they have said, they are piping for air, not oil.


Mark
www.Quantum-Racing.com

 

This can also be accomplished by simply retarding timing.

 

I was under the impression, it had something to do with Emissions throughout the rest of the world.

 

I can pretty much assure you that it has to do with anti-lag. If you notice in the picture that I have attached, the tubes are still in place. This is a car that is being prepped for rally use. I seriously doubt they would leave any emissions equipment on this car. Also, seeing that the intake plumbing has already been installed, it is safe to say that the engine bay is pretty much done and they are not going to remove these tubes after the rest of the car is put together.

My guess is that they are indeed used for the anti-lag system.

Josh

 

I guess that makes the point.

It seems that this menas that they are using the exhuast enrichment method without the need to hold the throttle open like the other systems. The valve is probably the control for air injection. The must be some type of air pump on the car, most likely electric and not mechanical.