Is Turbo Ok?

[Kwyjibo]

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 August 8, 2009 by Kwyjibo

[R31 POWER]

Sounds fine to me.

[kwickr33]

BB turbos will spins for few more secs after the car's switched off. as long as it has no play and boosting as usual then it should be fine.

Edited August 8, 2009 by kwickr33

[allthewaytotheskyline]

sounds fine to me...also same as above.

[Kwyjibo]

Ok thanks! Was just stressing out since I can hear it winding down in the cabin and this whole modding business has been nothing but trouble so far:p

Edited August 8, 2009 by Kwyjibo

[Pal]

i got a BB highflow and the thing sounds like a jet engine. blows no smoke and boosts like a bitch

[hypergear]

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.

[Kwyjibo]

Thanks for the call Hypergear was very helpful. Will let you know if I notice anything strange but seems ok.

[adis]

You think thats noisy? You got to hear my mates 40/50. You turn the car off, have a coffee, come back and its still spinning lol

[Kwyjibo]

Finally took it for a bit of a drive and seems good. Spools up quickly but yeah its very loud. Knock was reaching about 40 on PowerFC though so can't really test anymore until I get the GTR injectors in and get it tuned just in case.

[R31Nismoid]

If you stick your beaver into the engine bay you should be able to hear it for ~30 seconds mate

So a few seconds in cabin is perfectly normal, i could hear my GT30 no drama's!