i just had a vortech kit installed, everything is fine except i get a crazy whistling noise when i deling or decelerating

can anyone tell me what i can do to fix it?

perhaps cutting the valve down? what are the downfalls to this?

anyone else having the same problems

thank you

 

First of all....nice Avatar...Streets of Willow?? I am a frequent visitor with my Ducati 998

Second, does that whistler occur on normal decel? If so, I think it's just the whining of the supercharger belt...very common. If it's the sound of rushing air at high RPM in between shifts, that is the BOV expeling air into the atmosphere...which sounds cool as **it.

 

thanks, it is the streets of willow, i'm there once a month, you should come with us www.ridersinc.com



secondly!! it is not the belt, it is definately the blowoff valve, it is not that cool woosh sound between gears, i still have that, it is a long whistle that goes on when i'm at idle untill i touch the gas


anyways, thanks for the comments,

take care
sam

 

HOLY CRAP

i just read your sig,

thumbs up on the the TT set up


three thumsbs up on the the 1:27 at streets man, that's a great time, you got be by around 10 sec!!

 

Your BOV is adjusted too loose and is letting a small amount of air in past the valve seat thus your whistle. The reason it stops when you give it gas is that increases the vacum in your manifold and pulls the valve closed. Just crank it down a turn or two to see if it stops. Not to much or you'll get the chug chug sound when you shift. Good luck
Gary

 

Thanks! Yeah, Streets of Willow is a blast...some people don't like the super tight turns, but the Duc feels right at home. I hit the 1:27 on stock suspension and racing sllicks..no other mods!!

The turbo is being installed...this is like the longest two weeks of my life...I can't stop thinking about it.

Here is a pic of me on the track...sorry for the hijack.

 

thanks for the tip on the the adjustment


to GQ, your bike looks familiar as hell, i know i've been there with a red duc with blue tape,

your time is awsome, i just got a lap timer last time we were there and i got it to work (angle was off!!) my best time was 1:38.4 during the last session,

here's a pic from last month

 

Let me know if adjusting the screw help on the bov. I have the same problem, and when I called Vortech they said that is normal.
Also, the techs at Vortech say not to adjust bov. Let me know if you can get rid of that problem. Thank you.

 

i spoke with vortech and they said the same thing, i don't know if i should touch it or not

 

Vacuum decreases when you push the throttle, or 'give it gas' because the car opens the throttle plate to allow more air into the plenum.

 

Sorry I should have been more specific, The pressure differential between the two points (BOV and the Manifold) increases.
Gary

 

Did anyone ever find a way to quiet the BOV? I don't mind the "swoosh" between shifts but the whistle during steady rpm or decelleration is very loud and annoying. (We currently hava a K&N motorcycle air filter on the end but it doesn't seem to help much.)

 

Have you tightened the BOV?

--Steve

 

Steve, supposedly the installer tried tightening it already. I will try to do it myself this weekend also.

 

TTT



any fixes yet???


is there a specific # of turns out the screw should be??

-eS

 

Having the same problem. Seems like around 1k it is the loudest. I thought it was coming from the cone shaped filter since m pop charger used to make a similar sound but from the above posts maybe I am wrong. Any new news? ideas?

 

turning the topscrew ½-¼ a turn didnt help??


i ordered the BOV filter, to hopefully cut down on the noise (havent done the kit yet though)

 

I just picked up my car and I have the whisle at idle and decell .The installer said all the Vortechs he installs do this . AS soon as I give it any gas at all it stops .Going to get a filter for it. Guy at the shop said he knows of one that quiets it down quite a bit...and he is ordering it for me.

 

Well I didn't want to mess with it since Vortech did the isntall and it seems to be so common. Can you tell me what filter you are talking about? and possibly where I can order it from? Thank you,

 

Hey boog can you let us know what filter that is? and where I can order it?