Why do petrolheads HATE swirl flaps so much?

[@derin111]

Thank you for such a clear, no nonsense explanation!

[@vPerformance]

Glad it was helpful!

[@queuing89]

👍👍👍Thats exactly what they do and exactly why you should remove them

[@vPerformance]

Glad we got something right at last!

[@daysofgrace2934]

@@vPerformance No don't remove them. The reason you are getting carbon in your intake is because of EGR. Remap your ECU to stop EGR. Clean out your intake - dunk overnight in carb cleaner and inspect/change the flaps every 75k miles...

[@2BugsandaBack]

I'll be taking them off my A6 when I finally get around to it. Partly for the reasons you mention and partly because the black tape I used to cover up the check engine light on the dash is starting to look a bit untidy now and I can turn it off for good when the flaps are gone.

[@vPerformance]

Is there a kit for the a6?

[@2BugsandaBack]

@@vPerformance for the V6 tdi, yes. Mine's a 2.7tdi. I got the kit from Darkside Developments.

[@vPerformance]

They make some cracking stuff. Wish I was closer to them!

[@alimackenzie2168]

So, to sum up, swirl flaps good if properly engineered and manufactured from the right materials, swirl flaps bad on all available/affordable production véhicules.

[@mykolastrunce5457]

All bmw diesels 2000-2008 loved eating the flaps with catastrophic damage. And they still are plastic on the newer ones, just not infamous for killing engines anymore. So i think it's more of a swirl flaps good under warranty. Swirl flaps bad if they are old

[@dinosshed]

I'd most definitely not remove them if made from steel and are quality. I often upgrade them to custom made steel cuts or carbon fibre. The performance lost after removing them is dramatic.

[@andrewwelsh754]

Best swirl flaps explanation ever 👍👍

[@vPerformance]

Thankyou - I tried to help

[@josediegorojassolano4196]

Can't wait to see next step and how the engine performs.

[@Mr_Whippy92]

Cracking info. Removed them from my a3. Not long before they fell apart

[@vPerformance]

Sounds like you dodged a major bullet!

[@Mr_Whippy92]

@@vPerformance certainly did , plastic manifolds man ha , was causing a boostt leak as it wore a hole in the intake

[@tranthanhtung362]

4:01 the screw: OoO 😵

[@bhxotics2880]

Had mine removed, car drives great

[@ggp11]

Thank you.

[@heisenfeis]

i love engines with swirl flaps its so fun to tell people "i can remove them for *price*" and they say, "nah, its not a problem yet" and then their engine blows up due to stupid plastic. it is far more common that the flaps break in the closed position all the time so you cant go past 2-3000 rpm thinking you are in limp mode but there is actual plastic flaps blocking airflow at higher RPM. Since there are 2 seperate runners, short for torque and long for sustained torque at higher rpm, as he pointed out in the video.

[@Pewzen]

but there should be intervals on service/replacement on these no? Aslong as they are being followed cleaned and replaced at the given amount of km/miles or time, you should be safe I think?

[@Pewzen]

Also in my opinion both swirl flap and EGR give the engine col. the purpose of the intercooler turbocharged system is to cool the air, so that you shuve more air particles into the cylinder for a clean combustion which result in both power and reduced emission. should be more than enough to have a DPF in your exhaust system to deal with the nox2 and other harmfull gasses into harmless damp, adBlue also nice because none of these gives your main core engine cancer.

[@Pewzen]

Please correct me if i missed anything

[@JamesBrown-ux9ds]

The fuel quality in Germany is much higher compared to England and America. That's why carbon buildup is less of a problem in Germany. Fuel quality in England and America seems to be a sort of rip off to their customers when compared to fuel qualities in Germany. (I am indeed afraid that the international cooperation will make the German fuel quality go down as well. 'Maybe for the markets the best solution'. Yes - but not for my engines.) That's why we are expected to drive synthetic diesels only in such cars anyway. The usual telling goes, we all know, 'using VPower diesel only will not increase total cost of ownership (too much) anyway.' True again - because depreciation on a new or three year old 120k € car is way, way higher than paying about 6 or 8 % more on VPower fuels. The fuel costs don't make it anyway. 'Only small people seek to have a saving here'. Buy a new car every four years or 50k miles and i will never have any of such problems. (True again - but the car-brand still continues to keep on accumulating big probs on it's reputation. - We see too many 'I-people' baring responsiblity everywhere anyway? 'I will be out of office and in retirement anyway when the avalanche of complaints with regard to that will come'(?))

[@ochisettingz3383]

toyota had a 1998 direct injection engine with swirl flaps 3s fse

[@cornelisemail6070]

I removed egr valve and swirl flaps and its running better and lower gas per mile Vauxhall astra h z16xep

[@csppopa]

What about the performance loss? Or what about emissions on the exhaust pipe? Are they worst? We would like to know about that too.

[@vPerformance]

Oh yeah the emissions are worse because of less complete burn. That means more nitric oxide emission. Performance under partial throttle is worse, but better at full throttle because more air can get in the cylinder when on maximum attack

[@theholbrooks7374]

@@vPerformance Didn't notice any power drop on my BMW M47 engine and nor has it failed on emissions in the passed 10 years I have done it. All good.

[@williepie]

basically like TGV's on a subie right?

[@vPerformance]

Yes exactly

[@3dvorator]

When a crap brittle aged plastic swirl blade breaks and it's sucked into your head ...that's why they remove it

[@superplayerunknown729]

Hi ,i just removed swirlps ,everythinks seems fine ,same aceleration ,but my mpg got much worse... Any suggestions where to look at ? .Thx

[@roynorb]

Need to program it out of the ECU, your car still thinks it has functional flappies.. Go get a tune on the car which programs away the entire function from your car.

[@superplayerunknown729]

@@roynorb thank you will do that soon

[@overbuiltautomotive1299]

bmw modern build standards .bmw sale guy flips me off .lol good video

[@vPerformance]

It's a damn shame. Glad you enjoyed the video though!

[@daysofgrace2934]

I'd keep the flaps but remap EGR out of your ECU. This way you wont get carbon in your intake therefore no carbon build-up. Replace every 75K miles...

[@tennentslagerman8910]

Has anyone ever said you are Ewan McGregor’s doppelgänger

[@vPerformance]

I haven't heard that before. He's less bald than I am for sure.

[@bestofthebest3821]

aussie or scottish accent?

[@Lawrence_Joseph_Norse]

Repent to Jesus Christ! Are you a sinner? Mark 2:17 King James Version 17 When Jesus heard it, he saith unto them, They that are whole have no need of the physician, but they that are sick: I came not to call the righteous, but sinners to repentance.

[@vPerformance]

Technically aren't we all sinners?

[@Lawrence_Joseph_Norse]

@@vPerformance yes! But you have to think about your personal sins that you have sinned. If you want your sins washed away by the blood of the Lord Jesus Christ then you must - Believe that the Lord Jesus Christ died and was buried and rose again the third day according to the scriptures- 1 Corinthians 15:1-4 KJV. Have godly sorrow and a contrite broken heart toward God for sinning against him. 2 Corinthians 7:10 King James Version 10 For godly sorrow worketh repentance to salvation not to be repented of: but the sorrow of the world worketh death. And call upon the name of the Lord and ask him to save you! Romans 10:13 King James Version 13 For whosoever shall call upon the name of the Lord shall be saved. When he saves you he will seal you with his Holy Ghost and you shall be sealed unto the day of redemption! This is true salvation! Stay away from Catholics and all Christian denominations. They are of the devil. We are to have a personal relationship with Almighty God Jesus Christ. There is no scripture in the epistles of Paul the apostle to the gentiles to build a building and call it church. Think of eternity!

[@ShannonpdpHammond-yy7yh]

not everyone believes in your delusional fairytales