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hi every1,

i got a 1995 skyline GTS-T

150k - km's

its stock/ish everything.

stock boost

FMIC

HKS Superflower POD

thats it

today i got a new muffler / box on my existing 3 1/2 system.

i boot it up the road and i hear this squealing noise @ over 4000rpm?!

if i back off the throttle it stops?

any1 kn0w what it is?

thanks GaZ

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Sorry the noise is from front left of the car 'so engine bay'.

still boosts fine :wave:

i am so puzzled, cause it was fine before that!

thanks guys

GaZ

NOTE just took her for a spin... can go all the way to 6000 rpm off boost no noise! i fink it could be related to no back pressure ... there fore overspools ???

Edited by Mr_GaZZa

OK, well had guy take my car out! the noise is just the spooling of the turbo.. just a louder hissing noise. not a leak!

so dont freak guys lol sposable its normal with no back-pressure

ROFL

GaZz

OK, well had guy take my car out! the noise is just the spooling of the turbo.. just a louder hissing noise. not a leak!

so dont freak guys lol sposable its normal with no back-pressure

ROFL

GaZz

:sorcerer:

hey mate, great to hear that youve got your problems sorted...haha...spooling of the turbo ftw!!! :laugh:

goodwork!

Just to be safe i'd recommend checking the exhaust studs, had similiar problem with mine and had it checked by three places all said was turbo bout a week later got lot worse found one exhaust stud snapped off and two more about to go, was at less k's than yours also..

  • 2 weeks later...

OHHH MY GOD!!!

i was driving home from work today, had music loud... i was at lights @ the front of the line so i turn down my musix, lights go green i gun it up the hill n the squealling noise is WORSE!!!

i think its my turbo gasket or even worse my header gasket =( DAM!!!! l00ks like i knw wat i'll being doing this w/e =(

makes a TANK chugging noise !!

G.A.Y

haha thanks for ya help guyz... u where right!!!

also think i found my tapping noise prob the air chugging throuhg the gap eko/ing on the driveway!

=(

  • 2 weeks later...

Figure out the problem?

Turns out it was my stock SII Turbo. A piece of turbine wheel came off unbalancing the shaft and rooting the bearings :). Good thing i had a GCG R34 Highflow waiting to go on. All fixed now, and more powah and more noise :P. Must remember highflow with no supporting mods is a not good (for the wallet) ;).

cheers

Evil

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