Help. Screaming Noise When Spooling

[Benzino33]

+1,,its no use trying to take short cuts when modding these cars or it can end badly, male sure u make the right decision, even if it means u dnt drive ur car for a while

[MUZT3K]

well...it seems i might just high flow the turbo then..any rough idea on pricing or a place i can call...please pm me if you have any of those details. thanks.

[HEKT1K]

-GCG

-Hypergear

price depends on if you go ball bearing or not... anywhere from 800-1500 or so

hope it gets sorted out

[Branelly]

Ive been getting a whistle anytime on boost. Started happening after i installed my fmic. So im assuming that there is a leak somewhere, but so hard to pinpoint.

[Silo_Wagon]

My turbo has a loud scream too.

Its a hiflowed 25 turbo on a RB20, Spools around 2700rpm. then at 4000rpm it hits boost real hard and squeals real bad.

18psi of boost.

No shaft play.

Will a leak in the cooler piping show up on a boost gauge? or becasue the leak is consistant it will not vary the gauge?

[Moodles2]

Will a leak in the cooler piping show up on a boost gauge? or becasue the leak is consistant it will not vary the gauge?

Using something like this, it will: http://www.cazracing.com.au/catalog/produc...products_id=101

[DGK33]

I to have a whistling turbo that drives me crazy. noticed the whining and louder exhaust note after installing a stainless steel front pipe.when i take my foot off the accelarator it kinda sounds like theres some kind of back prssure if that makes sense. think one of the gaskets is stuffed or might even be missing a gasket. pretty sure thats wat my problem is unless any one can tell me otherwise?

[Silo_Wagon]

hmm i have a stainless front pipe. all gaskets and studs are new.

[MUZT3K]

ok guys, i just got my hi-flowed turbo installed, took it for a drive and its still making that noise, hypergear said it might be the gaskets any ideas, 2nd opinions? the noise is, putting my on the accelerator alittle bit it makes a tick tick tick tick, then hit boost, a high pitched sound.

[ssxRicho]

Ill put a pint on an exhaust gasket. Manifold, or turbo-dump.

ya me to.

mani to turbo is the bet.

tighten up the bolts on the mani to turbo. also check the gasket, make sure it all still there. some of the gasket may have blown away.

tho looking at the above, you will have replaced the gasket when you put the turbo bak in...? same with the dump end?

boost leak? have you tested the it like this? http://www.youtube.com/profile?user=mighty.../13/atretf9u-Mc

[stealth-ish]

i'd triple check for any leaks in the inlet

my squeals like a baby being used as a squeaking toy when coming onto boost, but the reasoning behind that is im using a panel filter (stuck a pod on it to test and it stopped) so possibly restriction from the filter onwards?

[Lithium]

I usually avoid screaming noises during spool by either not running as much boost, or not taking passengers

Edited December 10, 2009 by Lithium