DBOSS Faster than any BTA,XTC,Autotech, Nizpro and Tunehouse car Member 3,918 Member For: 21y 9m 14d Location: D SHIRE! Posted 16/06/05 11:34 PM Share Posted 16/06/05 11:34 PM Hazey said: Also sometimes when I turn the engine off I hear this loud wind down bearing noise(lasts about 2 sec)that's the sound of the ball bearing spinning down in the turbo once the car is turned off CYA JEFF Link to comment Share on other sites More sharing options...
Hazey Member 234 Member For: 21y 7m 30d Posted 28/06/05 01:46 AM Author Share Posted 28/06/05 01:46 AM Had my car in at service on Monday and Today for more tests. Well just got a call from them to say they are finished and found what the problem is.They said it was overboosting that was causing it.!!?? wtf So what have they done, Apply the famous flash to the ECU! (I have a 04 MKII)They said that they have reduced the sound of it by 95% and the reason it is slightly still there is because of my 2nd CAI.Now this is absolutly crap as I was having this issue before I fitted the 2nd CAIWill see how we go when I pick it up, Me thinking I am going to be real pi$$ed when I pick it up cus it will Feel like it won't go as hard and still have the sound!Aidan Link to comment Share on other sites More sharing options...
Hazey Member 234 Member For: 21y 7m 30d Posted 28/06/05 11:38 PM Author Share Posted 28/06/05 11:38 PM Getting back on topic...Picked up the car this morning, asked to clarify what was the cause and what is making the sound.Answer: Its becasue it was running 8pounds instead of the std 6 and as a result makes the turbo spin faster resulting in higher spool sound. Can I just make this clear. It is not turbo spool sound! It is an extra abnormal sound on top of the spooling noise.Service guys failed to understand this and insisted that it was fixed as they noticed a reduction in noise after re calibrating.(umm hello? yes that's cus it was the turbo spool that was reduced but not the abnormal noise) Anyway, The car felt fine, even after the flash drove for about 40min then what do you know, the sound it back.I really think it is a leak of some sort and its when the car has been run for a bit (heat?, expansion of pipes, Rubber joiners?) Do notice slight loss of performance while the sound is on.Dont know what to do now... Link to comment Share on other sites More sharing options...
cobrav8 Member 1,969 Member For: 20y 13d Gender: Male Location: New Zealand Posted 28/06/05 11:48 PM Share Posted 28/06/05 11:48 PM Try a different dealer? Link to comment Share on other sites More sharing options...
philthybarra New Member 2 Member For: 5y 1m 8d Posted 28/02/20 05:40 AM Share Posted 28/02/20 05:40 AM was it ever found out where this noise is coming from as I have the same noise on a car I just got it spools normal but when u get to full boost it makes a total diffrent noise like a boiling kettle really loud Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,371 Member For: 16y 11m 26d Gender: Male Location: Melbourne Posted 28/02/20 05:47 AM Share Posted 28/02/20 05:47 AM well done on 'ing a 15 year old thread haha it could be a restriction in your exhaust that's causing air to get a bit trapped on the way out. Link to comment Share on other sites More sharing options...
philthybarra New Member 2 Member For: 5y 1m 8d Posted 28/02/20 06:51 AM Share Posted 28/02/20 06:51 AM hopefully that's it because it wont have that exhaust in new car bought it for engine swap id find it very strange if that was the reason but as it has an aftermarket dump on it seems to be atleast 4 inch and then it has a system that goes to 4 tips Link to comment Share on other sites More sharing options...
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