turbo whine

[stock91w350]

is it normal that i do not hear the turbo whine intill it has been running for about 5-10 minuts, when i firdt start it ther is no whine and when i come back outside minuts later u can her it whisteling threw the stack

[RSWORDS]

When the ngine is cold (sitting all night) pull off the aire intake tube and try to spin the wheel... It should spin very easy.

[stock91w350]

yup it spins easy, is it normal for the turbo whistel to start being heard a couple minuts after the first start up of the day?

[Richie O]

Until stuff warms up it will act different.

[FRadisi]

It's normal. I can start my truck cold and not hear the turbo through my stacks, but let it sit and warm out and you can definitely hear the turbo over the exhaust.

[rattlebox93]

the cold engine oil is thicker and therfore the turbo is not going to spin as fast when the engine is cold