WRC Testing

[dimviii]

What is it? Return valve?

turbo fluttering as compressed air cant pass from closed butterfly,and returns to turbo direction.

[stefanvv]

turbo fluttering as compressed air cant pass from closed butterfly,and returns to turbo direction.

Many thanks

[dimviii]

It's the chirping sound you're hearing under braking when the turbo is pushing air into the inlet manifold and the dump valve opens, it's not mapped aggressive to get the banging sound like in the first video's. I guess that was a bit overkill and not very healthy for the turbo and even those racing catalytic converters can melt I've heard.

a race catalyst dont have any problems with antilag if installed at proper way.Antilag is not overkill,is a must for every turbocharged car.
Here a video with polo with antilag(from 30sec to 39 sec) is from today rally Legend
http://www.youtube.com/watch?feature...&v=XlMwU4YbkW4

[Nelly]

That sounds like the original test car with the modified f3 engine

[logic]

a race catalyst dont have any problems with antilag if installed at proper way.Antilag is not overkill,is a must for every turbocharged car.
Here a video with polo with antilag(from 30sec to 39 sec) is from today rally Legend
http://www.youtube.com/watch?feature=player_embedded&v=XlMwU4YbkW4

Sounded like the second ALS was for the wet which is less aggressive if on at all.

[dimviii]

Sounded like the second ALS was for the wet which is less aggressive if on at all.

for me is strange that after so much test time for polo,most videos we ve seen is without antilag.

[logic]

IT has ALS but with the current level of the new fresh air ALS you barely hear the chirp or the bang bang you used to hear before , you may hear a slight flutter or one chirp .

[dimviii]

IT has ALS but with the current level of the new fresh air ALS you barely hear the chirp or the bang bang you used to hear before , you may hear a slight flutter or one chirp .

yes i know that nowadays is not so loud,but i am sure that it is not activated at videos at least.
at previous post there is a video,you can listen antilag from polo which is enough loud to hear.

broken engine for polo

Tuesday, early in the afternoon, the engine of the VW broke, the team is then locked the afternoon to get a new engine while Sebastien Ogier made ​​a few runs with the Skoda Fabia S2000.

VW Polo R WRC 2.0 sur asphalte

[SubaruNorway]

Mikkelsen having a go at it.
Tests Mikkelsen Polo WRC - YouTube

[dimviii]

Mikkelsen having a go at it.
Tests Mikkelsen Polo WRC - YouTube

last minute with activated antilag finally.