I was wondering if anybody had done this before to save me the work.

If you have, list what filter you used.

 

Stock filter:

pressure drop right before throttle body = ~45 cm water

with snorkel removed = ~30 cm water

pressure drop in the resonator box with no snorkel = ~15 cm water

The tubing I used was the clear kind you can get at home depot, inner diameter = ~4-5 mm.

All readings were taken around redline at WOT, sort of hard to get it exact reading while driving.

The filter itself really does not cause any pressure drop. Thats why drop in filters dont really do much.

 

Thank you very much for the info. Just a few questions to clear some things up in my head.

By snorkel, you mean the J-tube where it draws air in from the fender area?

Were you referencing from the beginning of the intake piping or from atmospheric pressure?

I'm guessing for the filter pressure drop test, you just took off the airbox lid?

 

No, the snorkel is the tube that connects from the resonator back into the engine bay, which draws air from behind the abs unit.

This is in relation to atmospheric pressure.

For the filter test, you can snake the tube into the airbox from the intake, and take a reading there, and then snake the tube from where the engine breather vents into the intake, to the airbox, and take a reading there.