[335inDe]

After having Pure Stage 2 DD's and inlets installed I'm having this anomaly. While getting logs for tune revisions, when I let off the pedal abruptly after the pull I get a real nasty squelch sound. It also happens during gear changed when under a decent amount of boost. There is also a flutter sound under low psi occasionally when shifting gears. I checked all the boost lines, charge pipe, diverter valve hoses/lines etc. Any ideas?

Thx in advance!

Mods:

335is N54 DCT
Pure STAGE 2 DD's
DCI
Vrsf 7" fmic
DP's
charge pipe with forge diverter valves (yellow spring)
MMP inlets
Stage 2 fuel pump
3" full exhaust

[Chris@VargasTurboTech]

Hard to hear what you're hearing through the words you wrote.

Make sure your bov spring is correct and that you have a dedicated and appropriate sized line going from your manifold to the bov directly.

That said, larger turbos and inlets make some more glorious noises than perhaps your used to.

Chris

[335inDe]

Thanks Chris that's a question I have been trying to figure out. I know with Tial people use a larger diameter vacuum line. How about Forge Diverter Valves? I cannot find a definitive answer. Thanks!

[cristy7610]

That sound is normal with inlets and Tial BOV.In my case I replaced the line to the intake with larger one..Fixed the noise of dying owl ,most of it

[Chris@VargasTurboTech]

Originally Posted by 335inDe

Thanks Chris that's a question I have been trying to figure out. I know with Tial people use a larger diameter vacuum line. How about Forge Diverter Valves? I cannot find a definitive answer. Thanks!

It won't hurt to use a larger diameter, high quality line. Always recommended.

Thanks,
Chris