Re: K&N Air Filter

["Billy T." <btylaska@onramp.net>]

Under normal throttle, you will experience greater fuel economy, because the
motor requires less energy to get air in, it is more efficient.  Same goes for
the exhaust, less energy used to expel the hot gas.   But as soon as you step on
it, you use more gas, cause the extra air needs to be compensated for.  Most of
the time, we are cruising(between stop and go) so the savings in gas should
outweigh the extra consumption

Keep in mind, that this is all in theory.

b-


"Ng, Kevin (Bank of America Commercial Finance)" wrote:

> If this is the case, then how can K&N claim that you get better fuel mileage
> with their filters? Are they making this claim only for engines without EFI?
>
> BTW, Bill, I plan on re-jetting my bike next spring. Is this something that
> can be done by the average DIY'er? The dealer quoted me $290 for labor.
>
> Kevin Ng
> 97 GLX Windsor Blue
>
> > -----Original Message-----
> > From: Bill Hussey [SMTP:vfrboy@home.net]
> > Sent: Tuesday, November 09, 1999 7:44 AM
> > To:   jettaglx@igtc.com
> > Subject:      Re: K&N Air Filter
> >
> > Da Doctah wrote:
> >
> > > I was just reading knfilters.com about their drop in air filters. They
> > say
> > > an electornically controlled engine will increase the fuel when it
> > detects a
> > > greater flow of oxygen. I would think the opposite would be true.
> > >
> > > Is this, in fact, the way the VR6 works?
> > >
> > > Anyone with a 99.5 or 2000 VR6 put one of these in? How is it?
> > >
> > > Thanks.
> >
> > Your engine must keep a proper fuel / air ratio ... if you stick a higher
> > flow
> > filter in, you'll be increasing the volume of air that gets sucked into
> > your
> > engine.  To keep the ratio the same, the FI WILL compensate by throwing in
> > more
> > fuel.  Same thing holds true for an exhaust.   This has nothing to do with
> > VW's, or Honda's, or Hummers for that matter, its just Running Engine 101.
> >
> > Bill
> > '98 GLX
> >
> > P.S.  Wanna try something REAL interesting ... try rejetting a carbeurated
> > engine some time.  I have to do my carbs twice a year, not counting times
> > when
> > I modify the air track .... oh what fun!