Strange Whining When Boosting In 3Rd Gear

[jackbh241]

I have just noticed a strange whining sound that comes on when I'm on moderate to hard boost up hills in 3rd gear. This has only happened a handful of times but would like to get on top of it early if it's an issue worth fixing. Any thoughts?

I am unsure as to whether it sounds like it's coming from the gearbox or the turbo? (The car is on 150,000kms and the turbo has never been serviced or highflowed so I'm expecting it to let go sometime soon but thus far no issues with it at all)

Any thoughts would be helpful

[Brick]

Does it sound like a high pitched jet engine?

[scotty nm35]

I would suspect the turbo is about to let go.

[jackbh241]

My car has sounded like a high pitched jet engine since I bought it some 50,000kms ago haha.

I was hoping that wasn't case, it isn't as loud as people say it sounds just before it goes.

How do people typically go about getting the turbo serviced? Does the engine have to come out to get to it? I have limited mechanical experience but do have friends who could help out, is it something any enthusiast with moderate mechanical skills could do and then get it sent off for a high flow? Sorry if this has been covered.

[Brick]

It is a big job. The motor doesn't need to come out. There is a few tricks to know which you can find by searching a bit on here. And a few custom tools seem to help a lot. Depending where you are located there are a few guys who can do ut for you at a reasonable cost considering the work that is required.

[jackbh241]

Oh Yeh? I've been out of the loop for a while, I'm guessing Jetwreck is doing to much Stagea work any more? Who else?

And do you mean the whole high flow process or just removing the turbo to then be sent off?

[Brick]

Just removing it to get sent off. Jetwreck is still doing some stuff. Would be worth hitting him up.

I got mine high flowed by precision turbo here in sydney and I'm very happy with it

[jackbh241]

Great thanks heaps Brick. What was the turn around time for you?

[Brick]

They did the turbo pretty quick, dropped off one day picked up the next. Then it's just the install time

[jackbh241]

Okay great, thanks for the info

[ben3322]

Make sure theres no boost leaks before you go ripping the turbo off. Sometimes they can make odd noises.