Pffft noise after OTR install

[Playz]

Installed otr last night and this morning when I turned off engine got this short pffft noise lasting about a second.
So restarted it again and same noise.

car drove fine no other issues just a weird pffft..?!?!

maf install

my thinking it maybe the pipe that sits in rubber boot after maf and the weird angle it sit ?

 

[Ron Burgundy]

Pffft..nothing

 

[Mattricho]

Hey @Playz it’s a normal sound the factory intake makes the same sound but there’s more baffling and stuff so you don’t normally hear it, with the OTR All the sound come straight out the front.

I’m probably wrong but I think it’s the throttle blade closing cutting off all air to the engine.

 

[panhead]

It’s normal and often appears more pronounced when the car is fitted with an aftermarket CAI.

Go to the end of the videos and you can hear the sucking sound by two of my cars, a 304 and an LS2.

In fact all my cars with aftermarket CAI do it.


VS Clubby

VE Clubby

.

 

[Playz]

Ok thanks for reply’s
I felt like a bit of dill writing the post but no other way to explain LOL

AND That VS brought back some memories of my VR, kinda miss that old school 308 rumble

 

[VS 5.0]

My old VS used to suck like that with the factory airbox, amplified after installing the Mace CAI.

 

[Milo 6.0]

Sounds like a reverse vacuum,mine does it with the otr when turning off.
Even my bf xr6 with a cai does it.
Its the sound of awesome powahhhhh.

 

[PeteSS]

My old VS used to suck like that with the factory airbox, amplified after installing the Mace CAI.

I remember the VR/VS cop cars in the 90's. The induction noise was louder than the exhaust. Not sure what the cops did to them but they sounded different to standard V8's

 

[VS 5.0]

I remember the VR/VS cop cars in the 90's. The induction noise was louder than the exhaust. Not sure what the cops did to them but they sounded different to standard V8's

Must have been the cop chip

 

[Anthony121]

I remember the VR/VS cop cars in the 90's. The induction noise was louder than the exhaust. Not sure what the cops did to them but they sounded different to standard V8's

My VN BT1 was like that but we did find my friends fathers Calais V8 did the same. Usually you would adjust the butterfly valve and the IAC? valve would keep the car idling higher if it needed and the sound was made either with the closed throttle or the valve.