Induction

[youngsyp]

Checked my OE boost gauge and it sits at around 0.55 mm Hg at idle, when warm, with an idle speed of between 925 and 950 rpm.

 

[Braveheart]

Covered 130 miles with the new filter fitted. It's a good improvement as the car feels crisper, comes on boost stronger and engine breaking even feels better.
Nothing to do with performance but the BOV has taken on a few more notes and the induction noise through the filter is nice.
My OE boost gauge sits at .60 mm Hg at idle when warm. 1000rpm.

 

[jambo_gtir]

surely if the vacume is stronger when you put on a new filter then it indicates the new filter is MORE restrictive?
The engine is obviously having to suck harder (stronger vacume) to get the air it needs?
With a filter with less resistance, the engine doesnt have to suck as much?

 

[Braveheart]

surely if the vacume is stronger when you put on a new filter then it indicates the new filter is MORE restrictive?
The engine is obviously having to suck harder (stronger vacume) to get the air it needs?
With a filter with less resistance, the engine doesnt have to suck as much?

Maybe somebody can stick a bag over their filter and note changes on vacuum/boost gauge. I'd do it but my cars in bits... :roll: