Pops and Bangs so as the big brother / real deal (ALS)is not for performance gain per se.
It is against performance loss. ( engineered for restricted cars with a turbo charger) To prevent the turbo lag. Anti Lag System

So ALS prevents turbo lag, the way i like it , makes 0 psi at idle or off throttle. You can do positive pressure with ALS all the way up about 1.2 bar at idle But those settings are basically pushing the car. Kind of like a high idle with a N/A engine.

So the Pops and Bangs are MAINLY to replicate the ALS sound, but a same time you should see less pressure drop between shifts or slower drop off throttle if tuned it right.

I am not a tuner, but my tuner told me pops and bangs can be achieved easily. But to do it right is much harder as people think.
Hence damaged turbos and performance loss etc.

So the RS with a pops and bangs should see some benefit from it, so as my car does . But it is minuscule compere to the ALS.

When my friends drive my rally car they genuinely scared of it , and only does 0 psi
Plus i have no brake booster just pedal box , which is change your brake feel and cold brakes doesn't work also as well. So general conclusion , my car want to kill them ...lol


All and all Pops and Bangs for sound. So as the stripes or wings / wide fenders/ louvers / Carbon Fiber/ generally racing mimicking aero etc etc on street cars.

But the pops and bangs takes it to the whole new level of racing feel. Hence why the new Jaguar sport cars have different exhaust noise actual pop and bangs, also with a switch button.. Now the new RS etc etc etc.

I love my posp and bangs so as the people , definitely the passengers. Almost always if i am in teh tunel , people making videos ...lol


it is really not a best video , if someone would help me we can make a nice one when the exhaust etc fully warms up then its a AK-47 lol And flames too many times.

 

I believe I stated earlier in this thread that, you are really going to lose your mind when you find out the FoRS has a tube that brings intake sound into the cabin, as do all the ST models.



I'm assuming you haven't heard any of the over-run noises from recent Audi RS and Jaguar F-Type, etc models?

It sounds awesome and who cares if it doesn't do anything performance wise. If a car enthusiast thinks it doesn't sound awesome, then well... I dunno what to say.

 

Really,a lot of what car enthusiasts do has nothing to do with performance, at least, usable, provable, performance.

 

Over run (pops and bangs) is actually something you couldn't do much about back in the carburetor days. The car would suck fuel through the idle return circuit on decel because of the high vacuum in the intake manifold, causing the pops and bangs when the fuel hit the exhaust.

Even though it's not necessary it does add something to the driving experience. My wife's old MCS used to put a smile on my face every time I drove it in part thanks to the supercharger whine and the over run on decel.

 

100% true.

I think mainly because most of the racing stuff is illegal on street, and very expensive with a very short life span.

I see nothing wrong with enthusiast parts which doesn't gain anything but makes you feel gooooooood.

 

How in Heck do you tune in overrun?

 

retard timing and turn on the fuel in overrun.

Bangs work better with cars that are equipped with SAS system.. dont know if US cars had that, but it is essential for proper antilag (used on grN cars).

 

USA market evos with 4G63T, doesn't have SAS and AYC etc .

not like the old Evos. X doesn't need SAS and kicker just an aftermarket ECU with ALS option
Two more thing why I love my X better

back to the RS

 

Looking forward to seeing how the Focus RS does here and how it will be modded.

 

Turn on fuel? Huh?

 

Usually on decel injectors are basically not supplying fuel, the engine just turns into an air pump. Part of the pops and stuff with what we are talking about is unburnt fuel igniting in hot components.

Without fueling on decel, this wouldn't happen.

If you look at the ALS on the CT9A (non USDM), it's basically piping in air directly into the exhaust manifold to help create a combustion process post engine cylinders (in addition to unique ECU ignition and fuel calibration) which helps feed the exhaust turbine to keep the turbo spooled on decel and low engine loads like shifting.

Here is the ALS plumbing on non USDM CT9A's, now you know what the odd un-used bosses are for on your OEM exhaust manifold.

 

I know all that but i live in the U.S.

 

Then why did you ask the question? I was trying to help you understand what kikiturbo said.

 

Because knowing doesn't help me understand how people are doing it on U.S. Cars (I'm sure someone in another thread mentioned they set it up on one)

 

I discussed how for both USDM and non-USDM in my reply and others before me also explained how in USDM cars.

Not paying attention seems to be a theme in this thread.