VMP Gen II Question

[Dntalman]

Does the VMP Gen II blower whine. My biggest problem with my current TVS set-up is the lack of whine.. I like to hear the supercharger.. Can anyone shed light on this..
HERE IS THE SOUND I WANT

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[Roh92cp]

They do whine but much less than the twin screw types Whipple and Kenne Bell. The reason is the Eaton 2.3l is a roots style and moves air from top to bottom of the rotors. The twin screw is a internal compression pump and pulls air in a the back of the rotors and then compresses the air along the screws as they twist together. The rotor pulses with the twin screw makes the whine sound as it exits the outlet. The other thing is the S550 cabin inside is very well insulated and little engine or exterior noise penetrates with the windows up.

You could try my sound tube mod to the air box lik I did for the Whipple setup, this will increase induction and supercharger whine inside the car.

 

[Doctor Fishtail]

They do whine but much less than the twin screw types Whipple and Kenne Bell. The reason is the Eaton 2.3l is a roots style and moves air from top to bottom of the rotors. The twin screw is a internal compression pump and pulls air in a the back of the rotors and then compresses the air along the screws as they twist together. The rotor pulses with the twin screw makes the whine sound as it exits the outlet. The other thing is the S550 cabin inside is very well insulated and little engine or exterior noise penetrates with the windows up.

You could try my sound tube mod to the air box lik I did for the Whipple setup, this will increase induction and supercharger whine inside the car.

There is very little whine since Eaton does not run straight cut gears within the blower. My old Eaton had the straight cut gears and if you were walking on the sidewalk when I jumped on the throttle your would crap your pants. :eyebulge:

 

[Roh92cp]

There is very little whine since Eaton does not run straight cut gears within the blower. My old Eaton had the straight cut gears and if you were walking on the sidewalk when I jumped on the throttle your would crap your pants. :eyebulge:

Whipple and Kenne bell also have the quite helical cut gears, but still make blower whine from the rotors.

Here is the Shelby Super Snake with the 2.9l Whipple, listen to it scream from the front.

 

[jayman33]

They have a whine to it but nothing crazy like the older style PD's. 82-79mm pulley with Open CAI you can hear it a little more

 

[Roh92cp]

Here is my Whipple with my sound tube mod. Basically I use the sound tube connected to the Whipple air box.

 

[Dntalman]

Here is the reason why the TVS should get me the whine.. If I can get my lil blower to whine like this, I will be happy..

 

[JasinEdward]

You have a very similar blower.... maybe pulley down a bit more?

 

[Dntalman]

I am running a 79mm now.. I have not opened the air box yet.. If you watch the VMP video below. This is the whine I want.. Don't get me wrong, it blows people's minds when my car runs off and leaves them.. I hear all the time "how does it run so good without a blower". Then they accuse me of nitrous.. A guy in a new Camaro SS is still trying to figure out why his car gets destroyed by mine... I feel if I don't tell him the truth about my car, he will trade it in on a new Mustang! LOL..

VMP Video

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