Turbo Whine

[1gtr]

Hi All

Two months ago i purchased a 1999 S2 RS Four S

When my car comes on boost and holds boost (keep foot planted) the turbo has a whine to it, as the revs build engine noise takes over and you cant hear it. It is most obvious at 2500-3000 RPM under acceleration. Is this a normal sound?? can anyone suggest where to take it in Adelaide to get an expert opinion as i want to find the problem (if it has one) before my 3 month warranty runs out.

Any advice would be appreciated

Ps Car is completely stock 90,000km

[RBPOWA-(TJ)]

take the lid off the air box and go for a drive.

you'll notice the difference. its just the spool. chuck and air pod on and i dont think you will hear it again.

[lachlanw]

mine does that . same car . slightly more kays . i dont drive my car much and some days it puts the shits up me but then i remember it always does that . even with stock intake with sound deadining(teabag) in airbox its still quite loud .

[JDM_Spirit]

I believe its a Neo turbo thing. My mates Stagea and anothers R34 and mine all make a 'hair dryer' sound?

We're all running Pods now and the sound is still there. Conclusion : its normal

[RBPOWA-(TJ)]

guess its just the suction, im no whiz but i guess cause its a ceramic wheel it spins faster and smoother and makes that sound :S ?

again im no whiz, i dont even notice it with my exhaust

[BensDR30]

Hi All

Two months ago i purchased a 1999 S2 RS Four S

When my car comes on boost and holds boost (keep foot planted) the turbo has a whine to it, as the revs build engine noise takes over and you cant hear it. It is most obvious at 2500-3000 RPM under acceleration. Is this a normal sound?? can anyone suggest where to take it in Adelaide to get an expert opinion as i want to find the problem (if it has one) before my 3 month warranty runs out.

Any advice would be appreciated

Ps Car is completely stock 90,000km

If you want to take it to a workshop, then there are plenty that provide professional opinions - ATS, BoostWorx, APE, Turbo Tune etc.

Another option is post on the SA section, there are plenty of SA Stag owners that can lend you their ears (and other body parts...) if needed.

[beaugus]

Hey guys, I've taken a very short video that hopefully demonstrates the kind of whining noise being discussed here. Our RS4 "S" has a similar whine noise ever since day one when we picked it up, I was once concerned with the sound as well until I discovered this thread. Further comments are appreciated.

Cheers guys.

YouTube Link: http://www.youtube.com/watch?v=q4vH7_lUw9A

(video might take a few moments to appear on youtube's server as its only new tonight)

[RubyRS4]

Its normal ... especially with turbos like HKS.

[leetom]

had my s1 for about 5yrs always had a spool whine but when i put a ces split front dump on passengers go wtf it sounds like a jet taking off (wish it would go like one),way louder.

[pipster11]

had my s1 for about 5yrs always had a spool whine but when i put a ces split front dump on passengers go wtf it sounds like a jet taking off (wish it would go like one),way louder.

lol, i get that comment heaps and i've yet to do the dump, i think its the intake side that makes the noise tho

just to clear some things up, series 2 c34's run neo motor and turbo, the neo turbo has a larger rear housing compared to an r33 rb25 turbo, the compressor (inlet) wheel is also nylon on neo turbos to reduce spool time

i would say that its the nylon wheel that makes them sound different to previous rb's

[QWK32]

S2 R33's also have the nylon front wheel

[lachlanw]

the noise in that video is f**k all . get some more tea bags for your stock air box . was funny the other night pulled the air box out of mates u 13 sss blue bird and the whole inside of the box on turbo side of air filter was lined with teabags . like 6 0r 7 all shaped to fit

[BensDR30]

That sound's nought more than the turbo just starting to think about doing some magic with your engine's volumetric efficiency.

You'll find that it is more pronounced with an SS dump - the OEM cast iron absorbs more db.

[GTR32G]

Hi All

Two months ago i purchased a 1999 S2 RS Four S

When my car comes on boost and holds boost (keep foot planted) the turbo has a whine to it, as the revs build engine noise takes over and you cant hear it. It is most obvious at 2500-3000 RPM under acceleration. Is this a normal sound?? can anyone suggest where to take it in Adelaide to get an expert opinion as i want to find the problem (if it has one) before my 3 month warranty runs out.

Any advice would be appreciated

Ps Car is completely stock 90,000km

When i got may S2 Stagea with 85000km had some turbo whine, i didnt care as i got it cheap so i didnt mind if i needed to put a turbo on it. I have had plenty of turbo cars before and family races turbo cars. The whine was not really that bad was the same as a old VL turbo my old man use to race back in the 90's

After a month of owning it i wanted the change the timming belt and just service every thing on the car as i use it to tow my race car and need it reliable, i have read on the forums before its common the turbo gaskets leak so i changed it, when i took it out there was a very small hair line crack in the turbo gasket. Since that day i have no more whine at all, did nothing else to the car but timming belt turbo gaskets and oil filters, i even reused the air filter as it was so clean when i bought it.

Just somthing you could check if you have any concerns with turbo whine.

[pixel8r]

If you wanna know what turbo whine really sounds like, drive an M35