Turbo bark

[Makaio]

I've been running a hybrid H1C for a few months. It has the 60mm 8 blade wheel and the new housing that came with it has the MWE slots. The upgrade was from Gillett Diesel. As of yesterday, the turbo bark is back when I let off the throttle after a WOT run. Any ideas why it's barking again?

Aloha,
Matt

[Cschafer]

most turned up trucks will bark the turbo if pushed to full throttle then let off quick. I just run it and try not to let off so fast. Mine bark all the time.

[Makaio]

But when I installed the compressor upgrade, it didn't bark anymore because of the MWE slot in the new housing. I did a few hard runs to check my EGT drop and boost increases and the bark was definitely gone. A couple of days ago I pulled out of a parking lot to beat the oncoming traffic and it barked and even my girlfriend was surprised and she said, "I thought that part thingy you put in stopped that noise?" I was like, "I dunno why it did that again".

Aloha,
Matt

[KTA]

Perhpas your outside air temps are cooler than they were.

[Makaio]

Thanks for that input, Brian. Yes, it was a bit cooler that night. So.... the MWE slot will not totally eliminate the turbo bark given different conditions?

Aloha,
Matt

[KTA]

The denser the air the more likely it is to do it. If you don't like the sound try a stock air filter and housing, I doubt you have one or you probably wouldn't notice the bark.