Turbo Harmonics

[RPR33]

Now i have noticed that at around 2500rpms my car sometimes makes a high pitch whistle before the nom turbo whistle this is a nosie i have only ever heard on my r33 series 2 never on my last turbo'd car or any other skyline i've driven/been in?

anyone else ever heard this?

[fr0st]

Too much shaft play causing it to whine perhaps?

Does your current car have a pod and the your last car didn't?

It could be a heap of things

[RPR33]

yeah it has a pod but so did my previous cars,maybe its worht getting the turbo checked?

[fr0st]

You could just check it for shaft play yourself. Aslong as its not touching the housing or making a grinding noise it should be alright for a while atleast if thats the problem. Perhaps its time for a high flow

[quiksta]

Mine makes the same noise too! I think it may have some thing to do with the actuator. Mine started doing it after i oiled up a dry filter (stupid i know). The oil shot out the actuator and pod after i jumped off the throttle. Dont think an damage was done.

[RPR33]

it makes the noise under light accel from the last time i looked at the turbo it had about 1mm of play upwards and a steel wheel at the front!

[Mr Italy!]

Mine does this too, after i installed Splitfire coilpacks...

[RoadHog_r33]

yea mine does this 2 its like when it just starts spooling up

[RPR33]

do you have spit fires too?

[RoadHog_r33]

yea i do but it did it b4 this aswell tho

[GTsauRus]

after i fitted 3inch staino dump back zorst to my wifes vlt it resonates the pipe like a bitch on light boost only as you pass through about 2000-2500 rpm, I try not to let it happen if possible because it carnt be good

btw it never happens if she is driving cause its always spooled