Re: "Power Box"

Subject: Re: "Power Box"
From: "Harvey Chao" <Harvey_Chao@domain.elided>
Date: 10 Jan 1995 08:58:10 -0800
                      RE>"Power Box"                               1/10/95

I saw the same ad last night and had similar questions.  My inference of the
ad is that it allows higher fuel pressure at the injectors, and hence for a
given injector "open time" more fuel flow.  This, they imply, gives more
power.  But -- if the air flow is unchanged, i.e. the "charge of air" is
unchanged, more fuel will provide a richer mixture in the cylinder.  Wouldn't
the O2 sensor pick up on this and shorten the injector "open time" to
compensate???

- --------------------------------------
Date: 1/10/95 7:41 AM
To: Harvey Chao
From: bmw-digest@domain.elided


From: jeff.tatum@domain.elided (Jeff Tatum)
Date: Tue, 10 Jan 1995 04:07:45 GMT
Subject: The "Power Box"

I just got the January issue of Roundel in the mail today, and an ad
caught my eye.  It is on page 57 for CCA members...

A company called Performance 911, Ltd. is marketing a device that
modifies the fuel pressure in the injection system.  They claim that it
will yield "lower 0-60 and 1/4 mile times".  I called them and asked
some questions, and they faxed me some info, including a one-page blurb
citing a test "on an M5 BMW and at least a full second was dropped on
the 0-60 MPH, with no change in fuel economy".

They want $690 for this gizmo, which they claim bolts on in 30 minutes.

My question is can this thing possibly work?  It really sounds too good
to be true, and it just doesn't make sense.

I called Dinan, and they really didn't have a definitive answer.

Any wisdom from the net gurus?

- - -----------------------------(oo-OO-oo)---------------------------------
      Jeff Tatum                 |         Dinan BMW M6 - CA 86URZ28   
 jeff.tatum@domain.elided        |           '75 2002 - Project car      
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