does bigger snorkel = more power?

[KiwiBacon]

For those that are bored:
http://www.vararam.com/ramairinaroadcar.html

Lots of numbers from Ram air tests

0.176psi at 100mph.


BTW that's the max you can get. Any flow through the receiving funnel drops that pressure further.
At 100km/h it's a measly 0.07psi.

[mattstar]

Thank you very much Spongerx & KIWIBacon, Thats awesome info, Cheers!!

[KiwiBacon]

Thank you very much Spongerx & KIWIBacon, Thats awesome info, Cheers!!

Here's the formula for stagnation pressure.
P = 0.5*fluid density * velocity^2

velocity is metres per second (100km/h = 27.77m/s)
air density is roughly 1.2 kg per cubic metre
Pressure is in Pascals, there's around 101,300 to every 14.7psi.