Turbos still fluttering and i have replaced the IACV and EGCV what now????

[Guest FKADizzmystar]

just finished changing the EGCV vsv and took it for a spin and the turbos still are howling and fluttering and loosing power at 80kms. so far i have changed the IACV and EGCV vsvs. when i put it back to second and step on it you can hear the turbos sucking but it sounds like there are breaks in the sucking, making a fluttering noise and the turbo howls lol. so i take every1 is going to tell me to replace the EGBV and BOV now? becuase i have checked for vacume leaks and there is none. this is sooo annoying, grrrr lol. any help would be good

cheers

[Guest FKADizzmystar]

could it be my BOV because there is oil leaking out of it?

[Guest FKADizzmystar]

also so one of my Cats is stuffed, its rattle's when you rev it, so there are bits of the cat flying around in my exhaust could this be restricting some sort of flow ?

[Guest FKADizzmystar]

any1 got any ideas?

[supra matt]

Hi mate

 

1) loose the cat if it's had it that could be your problem full stop as it will block your exhaust putting lots of strain on the turbo's as there will be lots of back pressure in the system! Very bad for engine and turbo .

 

hence the sound the turbo's are getting strangled IE they trying to spin fast but when you come on boost they cant breath and all the gas that is trying to escape down the exhaust is pushed back though them very bad .

 

2 ) is your bov stock ? if it is wipe it off and see if you can blow though it ? if you can it's duff and needs replacing .

 

Hope that made sense?

[Guest FKADizzmystar]

yeah mate so new exhaust and Bov

[Guest FKADizzmystar]

like you said can i just knock a whole through it and have 1 cat working

[supra matt]

yes mate