Fluttering Roller Bearing R34 Turbo

[DarKZer0]

Hey pplz

Yesterday I went shopping for a sub and ended up talking to a few ppl about my r34 etc. one of the blokes ended up flutering my turbo to make the sequential noise which I think sounds quite nice. All he did was unplugged a hose from blowoff valve and put a screw in there. He said that for rollerbearing turbo its fine as he has r34 turbo on his r33 and hes done the same.

Should I keep it this way or is he wrong and this could damage my turbo among other things?

please someone let me know =)

thanks guys

[pavel]

Been covered before, do a search

http://www.skylinesaustralia.com/forums/in...topic=78780&hl=

http://www.skylinesaustralia.com/forums/in...topic=77374&hl=

etc..

[Scooby]

Sounds like he's disabled the BOV creating reversion in the turbo, the fluttering is the negative wave coming back through the blades as for OK for a roller bearing, I doubt it.

[DarKZer0]

thanks for the links man but before you actually post them, read carefully the actual point i'm trying to put across... ROLLERBEARING turbo... flutter using a screw.. not fluttering cose of a problem with the engine.

as said, please let me know guys if this is a safe practice...

[pavel]

Flutter noise aka compression surge, the air going back through the turbo. Some people say its bad for your turbo, but there is no proven fact it is. My mate run no bov on his r33 for few years making that fluter noise and never had a problem. Yes it does slow the turbo down on gear changes, doesnt matter what kind it is.

[satanic]

Hey DarkZero, can you please elaborate on what was actually done? Perhaps with a photo if possible... this sounds quite interesting.

pavel, what do you mean by "slows the turbo down"?

Thanks all

[sproosy]

if you dont have a BOV the turbo is pushing air into the motor at say 10PSI. When you take your foot off the accelerator the air has nowhere to go, so it tries to go back through the turbo hence the "HECTICT DOSES" of flutter.

It doesnt increase power, the air trying to go back past the turbo slows it down, therefore it could create more turbo lag because your trying to spin the turbo the opposite way.

[satanic]

Hmmm, now that you put it that way... common sense has told me that it is not good

[R31Nismoid]

as with all BOV/flutter threads.

Im closing this too.

Use initiative and harras the search button for your answers

Its loves being abused