Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: Enzo on September 13, 2010, 09:53:57 AM

Title: whoosing noise.....
Post by: Enzo on September 13, 2010, 09:53:57 AM
Right,ive been looking at my hoses and its driving me crazy!
Under any sort of throttle,the rex is boosting but being accompanied by a reaaly loud hissing /whoosing noise.Almost like a snake!
Itsa definately not pulling quite as well,so being the clever chap that i am-assumed a boost leak.:2Rolleyes
Checked v mount clamps and hoses,cant find it.....Any help would be massively appreciated.its an fd on twins by the way!
Thanks guys:WaveBye
Title: whoosing noise.....
Post by: aj47coupe on September 13, 2010, 10:51:54 AM
You dont have a BOV/Dump Valve do you?
 
I know it sounds stupid but my old car (SCoupe Turbo) used to hiss as it could not regulate the pressure in the dump valve.
Title: whoosing noise.....
Post by: Enzo on September 13, 2010, 11:07:50 AM
It could well be that....how would i check that?:2Confused
Title: whoosing noise.....
Post by: aj47coupe on September 13, 2010, 11:16:37 AM
Quote from: Enzo;716081It could well be that....how would i check that?:2Confused

The only reason I figured out it was ther BOV was that it sounded exatly the same as the hissing noise and vice versa.
 
Simpliest way to test it is to remove the BOV and plug the hole with something. Then go for a ride.:3gears-rh
 
It\'s its the BOV then it\'s best to remove it completely or go for a Recirculating one as it will "recycle" the unused air pressre and put it back into your turbos.:Thumbsup!
 
At a guess...your not using a Bailey BOV are you?
 
PS.
 
As cool as they sound, unless your car is heavily modified a standard BOV doe not make much differnece (ideally to reduce turbo lag). A recirc is the next best option.
Title: whoosing noise.....
Post by: Bobbit on September 13, 2010, 11:20:38 AM
Chances are its a hose if you are loosing a lot of power then it would be a major hose, if it\'s slightly down on power you might need to check the rats nest
Title: whoosing noise.....
Post by: Enzo on September 13, 2010, 11:23:15 AM
Its an Xs power one.......
The noise is really loud,you can hear it over the engine practically.:eek:
Title: whoosing noise.....
Post by: Enzo on September 13, 2010, 11:40:23 AM
I was so so so hoping that i would\'nt hear the words rats nest!:2Rolleyes
Ive looked at it before and it was like a bad dream.
Title: whoosing noise.....
Post by: Aubec on September 13, 2010, 12:54:17 PM
What Y-pipe do you have?  The stock black plastic crossover from the early FD Y-pipe is prone to cracking, and the coupler between the Y and the crossover is also prone to splitting.

Equally the turbo intake pipes can sometimes collapse under vacuum if they\'ve been damaged, which might make a noise and would reduce power? (never experienced myself...)

I\'ve got loads of the stock intake parts in the shed if you figure out something is broken... and the later Efini-Y pipe with a polished crossover if it turns out to be from that area.
Title: whoosing noise.....
Post by: fatboy2444 on September 15, 2010, 04:34:46 PM
Enzo please ring me at rxmotors to discuss payment. tried your phone several occasions and went straight to voicemail.
Title: whoosing noise.....
Post by: Enzo on September 19, 2010, 11:08:33 AM
Crap,sorry Brett,my phones gone up the swanny it seems and has a very hard time recieving calls.I will be at japshow on the 3rd with money.
:spank My bad!
Title: whoosing noise.....
Post by: Enzo on October 10, 2010, 01:12:18 PM
Sorry i ment japs-eye festival. i like boys :) have a good good  time with my eye of japs.
 
boobies ( . )( . ) is a big no no cos i like          B====D - ,   penis
 
boys boys boys, looking for a good time...........
Title: whoosing noise.....
Post by: Enzo on October 10, 2010, 01:13:25 PM
i like being spanked, did you like me spanky pic? spanky spanky spanky. love you x
Title: whoosing noise.....
Post by: Enzo on October 10, 2010, 01:14:25 PM
:spank:spank:spank:spank:spank:spank:spank:spank spanky spanky
Title: whoosing noise.....
Post by: fatboy2444 on November 16, 2010, 10:11:44 AM
Enzo, we have still not had payment for the work carried out on your car, when are we going to recieve this? it has been several months now.
 
Regards
Rx Motors