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The 2012+ Fiat 500 Turbo/Abarth is a great car, and it's a lot of fun to drive. But, its still a mass produced car, and Fiat sometimes leaves some room for improvement in some of the parts design.
The factory plastic duct that goes in between the airbox on top of the motor to the turbo is one of the pieces that we think could be better designed. The inlet and outlets are circular, but the center section is square. So, the air flowing towards the turbo goes from circular to square and back to square. Also, most importantly, there are huge casting ridges in the tube that impede and slow down air flow. (Please see stock air tube cut in half to show casting ridges below).
fiat500abarthstockairboxpipecutaway.JPG
What this does, is cause unnecessary air flow restriction. This makes it so the turbo spools up slower, and lessens power.
So, we designed an aluminum duct with very smooth bends, and designed the transition to the turbo rubber elbow to be super smooth. This allows air to flow easier into the turbo, making for a faster spool up and more fun driving!
To further illustrate the turbulence caused by the casting ridges in the intake pipe, please see our two photos below in which we used water to show you the flow characteristics of the stock pipe vs mpx. In the stock piping, you'll see that the water hits the casting ridge, slows down and jets upwards. Then, by the time the water exits it slows down and nosedives down.
fiat500abarthstockairboxpipeflowtest.jpg
1479_2293_popup.jpg
1479_2295_popup.jpg
The 2012+ Fiat 500 Turbo/Abarth is a great car, and it's a lot of fun to drive. But, its still a mass produced car, and Fiat sometimes leaves some room for improvement in some of the parts design.
The factory plastic duct that goes in between the airbox on top of the motor to the turbo is one of the pieces that we think could be better designed. The inlet and outlets are circular, but the center section is square. So, the air flowing towards the turbo goes from circular to square and back to square. Also, most importantly, there are huge casting ridges in the tube that impede and slow down air flow. (Please see stock air tube cut in half to show casting ridges below).
fiat500abarthstockairboxpipecutaway.JPG
What this does, is cause unnecessary air flow restriction. This makes it so the turbo spools up slower, and lessens power.
So, we designed an aluminum duct with very smooth bends, and designed the transition to the turbo rubber elbow to be super smooth. This allows air to flow easier into the turbo, making for a faster spool up and more fun driving!
To further illustrate the turbulence caused by the casting ridges in the intake pipe, please see our two photos below in which we used water to show you the flow characteristics of the stock pipe vs mpx. In the stock piping, you'll see that the water hits the casting ridge, slows down and jets upwards. Then, by the time the water exits it slows down and nosedives down.
fiat500abarthstockairboxpipeflowtest.jpg
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