My turbo now sounds like a supercharger while in boost

dpw41285

Spoolin'
Turbo sounded great last night boosted just fine. Take off this morning boost good runs strong just sounds like a supecharger with a k&n. Check the usuals quickly and notice the intake still attached and no loose vac lines. I guess it's possible vac leak in the cab behind pass dash but this whine is loud. Haven't checked shaft play yet... Any ideas?
 

WyoSyclone

Active member
Re: My turbo now sounds like a supercharger while in boost

If you still have the stock crossover tube on the intake make sure it hasn't developed a crack... next step would be ingesting a piece of plastic through the turbo.
 

jpalmer

New member
Re: My turbo now sounds like a supercharger while in boost

see if your wheel has been chewed up or see if the wheel is making contact with the housing
 

dpw41285

Spoolin'
Re: My turbo now sounds like a supercharger while in boost

thanks for the heads up, maybe time for a small upgrade. is a 20g direct bolt on?
 

jwaller

Evil Genius/SyTy Guru
Re: My turbo now sounds like a supercharger while in boost

thanks for the heads up, maybe time for a small upgrade. is a 20g direct bolt on?


not exactly. search for my stg 1 upgrade. 20g requires a converter and by the time your done it's still a pig and not as fast as mine.
 

dpw41285

Spoolin'
Re: My turbo now sounds like a supercharger while in boost

i am reading great things on all your turbos form rebuilds, upgrades and replacements tytilidie sure seemed to love your 20g he brags about it alot from the search. the only thing i didnt see was price.
 

tnsyty

Active member
Re: My turbo now sounds like a supercharger while in boost

I have a 20G and it seems to do pretty well. Looks completely stock too. I think the smaller exhaust housings don't require as much stall. Waller would know better than me. I think I paid around 900 for mine brand new 6 years ago ?
 

dpw41285

Spoolin'
Re: My turbo now sounds like a supercharger while in boost

I'll update once I get some time to check the compressor but I for see an upgrade
 

sy2675

He Saved the Pimp'n Game!
Re: My turbo now sounds like a supercharger while in boost

buy a bigger turbo, like mrsyclones!
 

dpw41285

Spoolin'
Re: My turbo now sounds like a supercharger while in boost

What's he got ? U don't have anything laying around for sale do ya ?
 

dpw41285

Spoolin'
Re: My turbo now sounds like a supercharger while in boost

did a plug change and found out my pass exhaust mani was cracked, theres the problem
 

Sy-1177

Turbo Inside
Re: My turbo now sounds like a supercharger while in boost

My Sy's 20g sounded like a supercharger as well while in boost. It progressively got louder and louder as time went on. Turned out to be a cracked fin on the compressor wheel which thru the wheel out of balance. A cracked exaust manifold wouldn't cause that sound.
 
Top