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General Information => Troubleshooting => Topic started by: OmnibusX on April 22, 2009, 06:32:35 pm

Title: Sounds like a supercharger
Post by: OmnibusX on April 22, 2009, 06:32:35 pm

After doing some drag racing the other night, my car sounds like its supercharged. i have locked at all the hoses and checkt the turbo for damage on the air filter side, but i cant find the problem. it sounds like its the turbo that makes the sound but there dont seem to be any more wear than normal on it.

any thought`s ?

Title: Sounds like a supercharger
Post by: burn_your_money on April 22, 2009, 06:47:23 pm

Since I can't hear the sound I'm just guessing here but it could be an exhaust leak pre-turbo

Title: Sounds like a supercharger
Post by: OmnibusX on April 22, 2009, 06:57:15 pm

sorry bad in english. wath you mean by pre-turbo?

Title: Sounds like a supercharger
Post by: burn_your_money on April 22, 2009, 07:19:38 pm

Sorry about that.

by pre-turbo I meant between the cylinder head and the turbo, most likely an exhaust manifold leak

Title: Sounds like a supercharger
Post by: OmnibusX on April 22, 2009, 07:30:23 pm

mm posible, i changed the turbo 4 mnd ago and had the manifold of, so it might be that i did a crapy jobb hehe

Title: Sounds like a supercharger
Post by: Vincent Waldon on April 22, 2009, 08:20:06 pm

... or the spirited driving shook something loose that used to be tight. :wink:

Title: Sounds like a supercharger
Post by: Smokey Eddy on April 23, 2009, 01:56:52 am

Quote from: "Vincent Waldon"

... or the spirited driving shook something loose that used to be tight. :wink:

Bingo? :P

Heh heh. "Spirited driving".

A supercharger sound arose from me running my car with just a 2.5 inch downpipe.

Perhaps you have a huge exhaust leak POST turbo?

Title: Sounds like a supercharger
Post by: OmnibusX on April 23, 2009, 06:09:13 am

Going to have a lock at tha manifold and exhaust asap, if i cant eliminate the sound still, i just have to make a film for youtube, so everyone can hear the stupid whining :)

Title: Sounds like a supercharger
Post by: veedubcanuck on April 23, 2009, 07:54:52 am

Also check all things that are belt driven. IE. Water pump, alternator, PS pump. Just take the belt off and run it and see if the noise is gone. Also might want to have a look at the timing belt... the tensioner might be going too.

Title: Sounds like a supercharger
Post by: OmnibusX on April 23, 2009, 05:36:54 pm

I haven had time to lock at any of the proposed solutions so fare, but i made a short video so that you can hear the sound. It dosnt sound as clearly as i`d hoped on the video, but here it is....


http://www.youtube.com/watch?v=w2XmifizkTY

Title: Sounds like a supercharger
Post by: rabbitman on April 23, 2009, 05:52:09 pm

Wow, I just watched your video. That is quite the noise!

It almost sounds like you have a boost leak, but your boost gauge goes up so it couldn't be that. Does it have the normal amount of power? It does sound like an exhaust leak, but that would also affect boost. Could be something belt driven, I'd check that first. Hope you can fix it :) .

Title: Sounds like a supercharger
Post by: truckinwagen on April 23, 2009, 05:57:45 pm

exhaust leak, probably a manifold gasket blew out.

check the manifold gaskets at the head.

Title: Sounds like a supercharger
Post by: OmnibusX on April 23, 2009, 06:16:45 pm

i cant feel any change in the power after the sound started. i had it up to 180km/t. 114mp/h yesterday and it coudent have done that if the power had gone down.

well locks like i have to dismount the manifold :( im not locking forward to it

Title: Sounds like a supercharger
Post by: veedubcanuck on April 23, 2009, 07:43:20 pm

It sure does sound like somethings up with the turbo. Maybe chipped a blade or sucked something in throwing it off balance??

Title: Sounds like a supercharger
Post by: toywagen on April 26, 2009, 08:22:03 pm

My K24 sounded like that. It still made boost but when I removed it to check it out, the turbine housing was cracked in many places. I wasn't sure on welding them up so I replaced it.

Title: Sounds like a supercharger
Post by: OmnibusX on April 26, 2009, 08:50:24 pm

That is what i was locking for... someone that have had the same sound and found the problem :D 10 points to you my friend :)

The problem with bugs like this is that you get 20 different ideas on what it is, and you end up whit the car in 1000 peases.

My solution to the problem... i am in the prosess of doing some upgrades including the turbo, so i`l use the car until it start using oil then change the turbo :D

And tnx for all the replys, you people make this forum great :D