Date: Mon, 13 Nov 2000 20:45:14 EST
Reply-To: kenneth d lewis <kdlewis@JUNO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: kenneth d lewis <kdlewis@JUNO.COM>
Subject: Re: Digifant performance stuff.
Gary;
I monitor the O2 output with a ten LED bargraph gadget I built.
During closed loop operation it shows me fully rich output at WOT.
Put yours back in closed loop and see what you get.
Drive Safely & Good Luck
Ken Lewis <Kernersville,NC>
86 VW crewcab;60 356B Coupe
--------------------------------------------------
On Mon, 13 Nov 2000 20:18:48 -0500 Gary Stearns <gstearns@SPRINTMAIL.COM>
writes:
>This is a multi-part message in MIME format.
>
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> charset="iso-8859-1"
>Content-Transfer-Encoding: quoted-printable
>
>Hi-
>Over the weekend I received a response to my question about Digi- =
>operating specs from Mark Keller. Seems he has been running his WBX
>in =
>open loop with a voltmeter on the O2 sensor as I have. While I was
>out =
>taking the kids to see grandma, I saw that on a high speed uphill with
>=
>foot on the floor the voltmeter dropped to 0.00; mixture drastically
>=
>leaning out. Got home still pondering this, checked e-mail and found
>=
>that Mark had written me about his finding that at wide open throttle
>=
>(WOT) the standard fuel pressure regulator can't keep up with what the
>=
>engine needs. He says that he acted on R. Lilley's recommendation to
>=
>install a performance adjustable fuel pressure regulator with great =
>results. Apparently the stock regulator "tops out" before the engine
>has =
>all that it needs. Seems they got their improved regulators from CB =
>Performance http://www.cbperformance.com/. Ever been at nearly full
>=
>throttle and then floored it for the last oomph? If nothing happens,
>=
>chances are that you're running out of fuel. The ECU says "more" the
>=
>regulator says "that's all there is". When the ECU says more to a Hi
>=
>Perf. regulator, it says "OK, how much?" I am going to try this.
>I'll =
>report on the results.=20
>
>Gary
>
>------=_NextPart_000_0035_01C04DAE.EE5574C0
>Content-Type: text/html;
> charset="iso-8859-1"
>Content-Transfer-Encoding: quoted-printable
>
><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
><HTML><HEAD>
><META content=3D"text/html; charset=3Diso-8859-1" =
>http-equiv=3DContent-Type>
><META content=3D"MSHTML 5.00.2614.3401" name=3DGENERATOR>
><STYLE></STYLE>
></HEAD>
><BODY bgColor=3D#ffffff>
><DIV><FONT size=3D2>Hi-</FONT></DIV>
><DIV><FONT size=3D2>Over the weekend I received a response to my =
>question about=20
>Digi- operating specs from Mark Keller. Seems he has been
>running =
>his WBX=20
>in open loop with a voltmeter on the O2 sensor as I have. While
>I =
>was out=20
>taking the kids to see grandma, I saw that on a high speed =
>uphill with foot=20
>on the floor the voltmeter dropped to 0.00; mixture drastically
>leaning =
>
>out. Got home still pondering this, checked e-mail
>and =
>found=20
>that Mark had written me about his finding that at wide open =
>throttle (WOT)=20
>the standard fuel pressure regulator can't keep up with what
>=
>the=20
>engine needs. He says that he acted on R. Lilley's=20
>recommendation to install a performance adjustable fuel pressure
>=
>regulator=20
>with great results. Apparently the stock regulator "tops out" before
>the =
>engine=20
>has all that it needs. Seems they got their improved =
>regulators from=20
>CB Performance <A=20
>href=3D"http://www.cbperformance.com/">http://www.cbperformance.com/</A>.=
> =20
>Ever been at nearly full throttle and then floored it
>for =
>
>the last oomph? If nothing happens, chances are that you're
>=
>running=20
>out of fuel. The ECU says "more" the regulator =
>says=20
>"that's all there is". When the ECU says more=20
>to a Hi Perf. regulator, it says "OK, how =
>much?" =20
>I am going to try this. I'll report on the results.
></FONT></DIV>
><DIV> </DIV>
><DIV><FONT size=3D2>Gary</FONT></DIV></BODY></HTML>
>
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