ITG maxogen whistle

[rich83]

That whistle is an 'F'............ just thought you might like to know! 

[oxygen]

Pretty sure my Twintake makes a similar sound on full throttle accel.

I quite like it! lol

have a listen when your down next!

[jedi-knight83]

Pretty sure my Twintake makes a similar sound on full throttle accel.

I quite like it! lol

have a listen when your down next!

Damn.. not the answer i was hoping for.

[rich83]

Much louder than i expected it to be mate   

[R-tech-Nick]

I notice this a lot with induction kits on the k03,  I think I will investigate it next time I get one on the dyno.  I have never noticed any power losses linked with it.

It could be to do with the n75 nipples on the turbo, for the air passing over it making a sound  like blowing across the top of a milk bottle.   But saying that I have never noticed it on a k04?

Nick

[jedi-knight83]

I notice this a lot with induction kits on the k03,  I think I will investigate it next time I get one on the dyno.  I have never noticed any power losses linked with it.

It could be to do with the n75 nipples on the turbo, for the air passing over it making a sound  like blowing across the top of a milk bottle.   But saying that I have never noticed it on a k04?

Nick

I'll keep mine on till the 24th  and you can hear it on mine

could it be air passing by the maf? the oem intake has a mesh just before the maf i noticed?

[RedRobin]

^^^^
Did someone mention nipples?  

I still don't get an answer on Forge's published phone number!   I was going to ask them about it.

[JMP]

I notice this a lot with induction kits on the k03,  I think I will investigate it next time I get one on the dyno.  I have never noticed any power losses linked with it.

It could be to do with the n75 nipples on the turbo, for the air passing over it making a sound  like blowing across the top of a milk bottle.   But saying that I have never noticed it on a k04?

Nick

I have this also sometimes on my k03 GTI, but for some reason its very rare now. In fact I cannot remember hearing it for days. I have heat wrapped my intake so maybe that helped a bit.

And I had the same ITG intake on my Leon Cupra (k04) and as Nick here said, I never heard this sound in that car.

[mkviken]

i spoke to ITG about this and they said they experienced it on a small number of cars but couldn't explain why

 

[jedi-knight83]

Interesting development.

First a tiny background on my specific intake. I bought it from a guy who had it fitted for a few weeks but removed as it whistled. ITG sent him the enclosed canister to see if that fixed it. It didnt. So he sold the whole kit... to me.

I sent Andy at ITG the sound file.. its the same sound as the previous owner was getting. Andy sent me a video clip the other guy sent him and its exactly the same noise (although possibly a bit worse on his car.

I'll try to post the video.

[jedi-knight83]

video from the A3 owner I bought it from

[mkviken]

yep thats exactly what mine did on my mk6.

[RedRobin]

.
As usual with such problems which aren't immediately obvious, it has to be a process of elimination.

Has anyone tested for the 'whistle' by changing DV yet? - Surely worth a go.

[jedi-knight83]

.
As usual with such problems which aren't immediately obvious, it has to be a process of elimination.

Has anyone tested for the 'whistle' by changing DV yet? - Surely worth a go.

the guy I bought it from changed his and it didnt affect the noise.

Just spoken to Andy@itg again and either i'm going to his or he is coming to meet me at R-Tech on the 24th (I need to clear this with Nick first) to listen to the noise on the dyno.

He says they have had a handfull of noises like this out of the hundreds of kO3 kits they have sold and never any on the KO4 kits.

[GarethB]

.
As usual with such problems which aren't immediately obvious, it has to be a process of elimination.

Has anyone tested for the 'whistle' by changing DV yet? - Surely worth a go.

Pretty sure that i've already stated that the noise occurs on mine with both Rev D & Rev G DVs. Can't comment on the Forge DV though