bone stock evo 9 with aem short ram intake only and stock BOV makes fluttering sound. this never happen on my stock intake. is it normal? i searched but no thread has bone stock evo 9 with aem intake. thanks

 

actually from 2,000 to 2,800 no noise, 3,000 to 4,000 rpm there is fluttering. And at 4,000 or 4,500 it goes back to the normal whooshpssh i think. it that normal with just aem short ram intake?

 

No,

Check your lines and make sure everything is tight. Sounds to me like a leak

 

this is the sound it makes. skip to 30 sec. the first 1 or 2 time u can hear the fluttering. the last 2 is shift above 4,500 rpm

https://www.youtube.com/watch?v=KplQIcQ-JAE

 

Sounds like your bov is upside down. Mine made the same sound when I still had my stock turbo, the top of the bov with the nipple should be horizontal not upright. Also, make sure the vac line on the bov, isn't pinched against anything.

 

thanks NHazz i think the vacuum line is pinched on the bov. also on the pix in the other thread, the BOv is positioned correctly?

 

so my bov vacuum hose was pinched. i fixed that issue and i think all the lines are connected. i think it soulve my problem m...but now when its 3,000k rpm or under, sometimes it will make a softer fluttering noise. alot softer and its like 50/50 of the time. that is ok?

 

Depending on how you fixed it, it might vibrate to a point when you are driving softly to slightly pinch it again. I wouldn't worry about it though man, under 3000 is no worries. Out of curiosity, what kind of dv/bov is this? Also, make sure all bov hardware/clamps are tightened down good. Hope that helps.

 

Fixed.

 

the bov vacuum hose is rerouted over the radiator hose instead of under. and its the stock evo 9 bov