[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: Airbox Mod
>The airbox mod you describe(drilling holes) has been around for sometime now!
>Some will swear it works, others claim "no gains" from such a mod!
IMHO, it works somewhat in colder weather but makes things worse in hotter
weather because while it allows the motor to draw in air more freely, that
air is heated by the exhaust manifold nearby ... in this case, however, the
car may *seem* quicker due to the increased intake noise but in fact is
slower. (BTW, if you're into that sort of thing, the intake "noise" sounds
A better solution for basically stock engines (where the airbox is able to
provide more than enough air) is to remove the hot-air thermostat and duct
cold air from the front of the car ... this will make a difference that you
may be able to notice and has few drawbacks save perhaps for some rough
running in colder weather. With a bit of work, you can also install the
nozzle from an '84 or '85 non-turbo 5k as this splits into two ducts and
makes it easier to attach a hose (VW Beetle heater tubes work great!) than
the stub left when the thermostat's been removed. It's not easy to fit all
this stuff onto a turbo car but it CAN be done with some cleverness...
/ | _| o | \ _| o Jeffrey Goggin
/__| | | / | | __ | | | | / | | email@example.com
/ | |_| \_| | |_/ |_| \_| | http://people.delphi.com/audidudi