Graves,
One thing I noticed is that most aftermarket intakes have bigger dia pipes. As someone stated,
bigger intakes produce more horsepower than tiny ones. Over time, a computer-designed intake like I see in your lower picture is better than a bigger pipe by itself. Some computer designed intakes have the pipe getting bigger
in the middle and smaller on the ends. By the time the air travels the intake length and gets to the intake valve
it produces more horsepower.
Niburu,
I agree about bigger diameter and putting in a cold air box keeps the filter from pulling in warm engine air.
Flatrex,
You are correct about the velocity stack smoothing the air flow.
Empire,
+1 on a cone shaped filter flowing more than a flat panel style paper filter.
Larger surface area gets air sucked through the filter easier. An engine is an air machine. The easier it breathes,
the more horsepower it produces.
Niburu,
Cold water splashed on an engine whether a high riding SUV or not, will cause condensation
inside a warm distributor and that condensation will sometimes kill the module inside. Sometimes
the condensation will redirect the spark to the wrong terminal.
I suspect that enough water splashed on and/or around electronic parts regardless of the height or
type vehicle will cause electric malfunctions.-Bob
Originally Posted by
Graves
The Focus comes with (edit)....................
No replaceable drop in filter, so a CAI kit gives you that option. Not to mention it is like $400 to replace it all.
I replaced mine with this:
3" tubing, insert for no tuning. I see more MPG and peppier acceleration. With my tune in and the insert removed I may see 10 hp to the wheels. But I can clean my filter and inspect it without dismantling my front end.