Phase 1 172 air filter surface area vs phase 2

[len_beach]

I thought this may interest some of you guys. I have just measured the surface area of each running right into the corners of each visible filter element.

Phase 1: 866.25 square cm

Phase 2: 312.375 square cm

That means that the phase 1 filter is approximately 2.8 larger in surface area than the phase 2. Why did they change?

I'm assuming that the inlet flow into the phase 2 box will be superior to that of the phase 1 as there are inlets on different sides of the box.

 

[Gaz_]

Intersesting. The cup racers used the mk1 box iirc with a simplified route,

 

[Steve2004]

I thought this may interest some of you guys. I have just measured the surface area of each running right into the corners of each visible filter element.

Phase 1: 866.25 square cm

Phase 2: 312.375 square cm

That means that the phase 1 filter is approximately 2.8 larger in surface area than the phase 2. Why did they change?

Cheaper?

 

[Andy_J]

is there not a missing engine mount on that cup racer...?

 

[en035]

Are these braided hoses for fuel rail? if so where can I find them?

 

[Gaz_]

is there not a missing engine mount on that cup racer...?

solid mounts iirc