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I have a HKS2530, recently had a new wheel put in by Hypergear and they gave it the all clear. After putting some oil through it and spinning it by hand I have noticed there is a bit of noise, don't know if its usual or what. Video is below:

The sound itself wouldn't worry me too much but I can even hear it spinning for about 5 seconds after turning the car off from inside the cabin.

Seems to boost ok but hard to tell since I need to sort out a few boost leaks.

Any ideas, this normal with a BB turbo?

Should also note that there is no shaft play.

Edited by Kwyjibo
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100_0105.JPG

I think HKS wanted that turbo to be noisy. see the surge slots on the comp housing. as in the angle of where they are and how they sits. this thing will be howling very loud when air pass by. Been told by our engineer that this turbo's going to make lot of noise.

I sent the core to Garrett for bearing analyze and been told its fine before went ahead with the repairs. it should be all good.

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https://www.sau.com.au/forums/topic/282493-is-turbo-ok/#findComment-4757002
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