VN Series 2 - VR Bellmouth

[s0sage]

it sounds kinda like you've done some damage to your throttle body gasket in the process of pulling it off... either that or its not sitting in 100% straight.

the tiniest bit of escaping air will give you that wooshing sound as the motor sucks air through it

pull it down and have a look at the gasket and make sure its not ripped. if its all ok, just put it together **** CAREFULLY.... this is going to affect your fuel economy a bit if its not sorted out as the air/fuel mix will be wrong

 

[bergles]

nah the gaskets are fine. everything is lined up all good. the sound isnt a whooshing its more like a mechanical types sound.....eg. a QUIET engraver or router. it idles fine and everything, got a tiny bit meatier sound in the exhaust, just cant figure out why my fuel rail is making noise now even though i didnt touch it. im gonna try and see if the computer will let me know what the deal is.

 

[bergles]

well the computer says A ok. stripped it down and put it back together again and now its gone....bloody car. a nice mod that works a little. has definately given it a slightly meatier sound in my car (i have 3in from diff back) but i need to do the whole exhaust cause now i got a sub and good speakers and i cant hear my car enough. next will be manual conversion and decent L.S.D. i want a commodore that will drift like a champ.

 

[RS 2000]

I have removed bellmouth on my VR V6 did couple of quick power runs (as I work in a dyno tuning workshop)and no extra power anywhere in the rev range so naturaly I put it back where it came from

 

[Charg'd]

rs 2000 thanx if theres no gains i wont bother taking it off

 

[rattattack1313]

I will have to get my machine on a dyno then..I reckon mine blooody flies now........ :yeah:

 

[XR8TD]

well im goin 2 look into it for my vs, im jst workin it out if it worth it or not?

 

[VT-565]

well im goin 2 look into it for my vs, im jst workin it out if it worth it or not?

hate to burst your bubble man, but i dont think your vs has one. if you have the ecotec motor which you should have, then this thread is irrelevant to guys like you and me....

 

[Dasampsta]

yeah mine is making that crap squiel noise now so i might put it back in and do that gaskets at the same time.


Maybe just do the gaskets now. test it over a long period of time. don't bother reading this becasue im just talking to my self.

 

[-CalaisJay-]

ive noticed better fuel economy fark yeah