[Diy_efi] power steering pump relocation
Scott F. Williams
sfwilliams at comcast.net
Tue Apr 1 21:25:29 GMT 2003
This is a multi-part message in MIME format.
--===============31293778356533508==
Content-type: multipart/alternative;
boundary="Boundary_(ID_OSC8l78au9qkeZcWKhlOPg)"
This is a multi-part message in MIME format.
--Boundary_(ID_OSC8l78au9qkeZcWKhlOPg)
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 7BIT
Folks, I'm converting to an electric power steering pump in my vehicle. This
pump was originally positioned in the engine bay with approximately 3.5 foot
long feed and return lines. My intent is to mount the pump inside the
cabin -probably behind the passenger's seat or even in the spare tire well.
My question is whether or not the extra length should be a concern. The
application here is a VW Scirocco. The distance from firewall to the seat
area is about 4 feet. The spare tire well is an additional 4 feet beyond
that point, I estimate.
Question: Should this extra tubing length pose any issues from a pumping
efficiency point of view? Forget about calculations here. Just let me know
your gut feeling about it, please.
Thanks,
P.S. My primary motivation here is to move the weight as low as possible and
farther back for best weight distribution.
'--
Scott F. Williams
Team Director
Usually Sideways Rally Team
-----Original Message-----
From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
Behalf Of CJ Virtual
Sent: Tuesday, April 01, 2003 3:49 PM
To: List for general do-it-yourself EFI talk
Subject: Re: [Diy_efi] Turbos - spooling etc
When you kick that much oxygen from the air in the exhaust, it creates a
very lean condition. This lean condition will cause a situation similar to
that of a blow torch and can result in the blades on the turbine melting
(burning). This how ever depends on hoy much air you inject. Anothe question
is, what flow rate will give y ou the air needed.
You can spool easier by using NOs. Nos kicks in extra fuel and oxygen,
then the turbo takes over
Bill Washington <bill.washington at nec.com.au> wrote:
Fellas,
A crazy thought just occurred to me - does anyone know if the
following has been tried, and if so with what results:
If a compressed air bottle was plumbed into the exhaust manifold
(pre-turbo) through an electronically controlled valve arranged to give
a (short) injection of HP air into the manifold when the WOT switch is
hit, it should help spool the turbo quickly and give a (false) lean
indication on the lambda sensor which should result in a brief
enrichment - Rats, just remembered - the Lambda is ignored at WOT - Just
a wild thought from someone with no direct experience playing with
turbos.
Bill W
_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi
----------------------------------------------------------------------------
--
Do you Yahoo!?
Yahoo! Tax Center - File online, calculators, forms, and more
--Boundary_(ID_OSC8l78au9qkeZcWKhlOPg)
Content-type: text/html; charset=iso-8859-1
Content-transfer-encoding: 7BIT
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2800.1141" name=GENERATOR></HEAD>
<BODY>
<DIV><SPAN class=010495320-01042003><FONT face=Arial color=#0000ff size=2>Folks,
I'm converting to an electric power steering pump in my vehicle. This pump was
originally positioned in the engine bay with approximately 3.5
foot long feed and return lines. My intent is to mount the pump inside the
cabin -probably behind the passenger's seat or even in the spare tire well. My
question is whether or not the extra length should be a concern. The application
here is a VW Scirocco. The distance from firewall to the seat area is
about 4 feet. The spare tire well is an additional 4 feet beyond that
point, I estimate.</FONT></SPAN></DIV>
<DIV><SPAN class=010495320-01042003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=010495320-01042003><FONT face=Arial color=#0000ff
size=2>Question: Should this extra tubing length pose any issues from a pumping
efficiency point of view? Forget about calculations here. Just let me know your
gut feeling about it, please.</FONT></SPAN></DIV>
<DIV><SPAN class=010495320-01042003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=010495320-01042003><FONT face=Arial color=#0000ff
size=2>Thanks,</FONT></SPAN></DIV>
<DIV><FONT size=2><SPAN class=010495320-01042003><FONT face=Arial
color=#0000ff></FONT></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=010495320-01042003>P.S.
My primary motivation here is to move the weight as low as possible and farther
back for best weight distribution.</SPAN></FONT></DIV>
<DIV><FONT size=2><SPAN class=010495320-01042003><FONT face=Arial
color=#0000ff>'</FONT></SPAN>--<BR>Scott F. Williams<BR>Team Director<BR>Usually
Sideways Rally Team </FONT> </DIV>
<BLOCKQUOTE>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> diy_efi-bounces at diy-efi.org
[mailto:diy_efi-bounces at diy-efi.org]<B>On Behalf Of </B>CJ
Virtual<BR><B>Sent:</B> Tuesday, April 01, 2003 3:49 PM<BR><B>To:</B> List for
general do-it-yourself EFI talk<BR><B>Subject:</B> Re: [Diy_efi] Turbos -
spooling etc<BR><BR></FONT></DIV>
<P>When you kick that much oxygen from the air in the exhaust, it creates a
very lean condition. This lean condition will cause a situation similar to
that of a blow torch and can result in the blades on the turbine melting
(burning). This how ever depends on hoy much air you inject. Anothe question
is, what flow rate will give y ou the air needed.
<P>You can spool easier by using NOs. Nos kicks in extra fuel and oxygen, then
the turbo takes over
<P> <B><I>Bill Washington <bill.washington at nec.com.au></I></B>
wrote:
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Fellas,<BR>A
crazy thought just occurred to me - does anyone know if the <BR>following
has been tried, and if so with what results:<BR>If a compressed air bottle
was plumbed into the exhaust manifold <BR>(pre-turbo) through an
electronically controlled valve arranged to give <BR>a (short) injection of
HP air into the manifold when the WOT switch is <BR>hit, it should help
spool the turbo quickly and give a (false) lean <BR>indication on the lambda
sensor which should result in a brief <BR>enrichment - Rats, just remembered
- the Lambda is ignored at WOT - Just <BR>a wild thought from someone with
no direct experience playing with turbos.<BR><BR>Bill
W<BR><BR><BR><BR>_______________________________________________<BR>Diy_efi
mailing
list<BR>Diy_efi at diy-efi.org<BR>http://www.diy-efi.org/mailman/listinfo/diy_efi</BLOCKQUOTE>
<P><BR>
<HR SIZE=1>
Do you Yahoo!?<BR><A
href="http://us.rd.yahoo.com/finance/mailsig/*http://tax.yahoo.com">Yahoo! Tax
Center</A> - File online, calculators, forms, and
more</BLOCKQUOTE></BODY></HTML>
--Boundary_(ID_OSC8l78au9qkeZcWKhlOPg)--
--===============31293778356533508==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi
--===============31293778356533508==--
More information about the Diy_efi
mailing list