[Diy_efi] power steering pump relocation
md4etal
md4etal at netzero.net
Wed Apr 2 00:56:45 GMT 2003
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why do you need power steering in a Scirocco??? That's a pretty light =
car. You can loose up to 10 lbs by removing all that stuff and free up =
some power.
but if you really have to, the extra length should not pose drastic =
problems. Think of how far hydralic fluid has to be pumped on a =
backhoe. transient response can be improved by going to a bigger flow =
orifice in the back of the pump on the high pressure supply side (for GM =
saginaw pumps). You can also shim the pressure relief to get more =
pressure, but I don't recommend that unless you have some gauges.
Mike D.
----- Original Message -----=20
From: Scott F. Williams=20
To: List for general do-it-yourself EFI talk=20
Sent: Tuesday, April 01, 2003 3:13 PM
Subject: [Diy_efi] power steering pump relocation
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 =20
-----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. =20
You can spool easier by using NOs. Nos kicks in extra fuel and =
oxygen, then the turbo takes over=20
Bill Washington <bill.washington at nec.com.au> wrote:=20
Fellas,
A crazy thought just occurred to me - does anyone know if the=20
following has been tried, and if so with what results:
If a compressed air bottle was plumbed into the exhaust manifold=20
(pre-turbo) through an electronically controlled valve arranged to =
give=20
a (short) injection of HP air into the manifold when the WOT =
switch is=20
hit, it should help spool the turbo quickly and give a (false) =
lean=20
indication on the lambda sensor which should result in a brief=20
enrichment - Rats, just remembered - the Lambda is ignored at WOT =
- Just=20
a wild thought from someone with no direct experience playing with =
turbos.
Bill W
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<DIV><FONT face=3DArial size=3D2>why do you need power steering in a=20
Scirocco??? That's a pretty light car. You can loose up to =
10 lbs by=20
removing all that stuff and free up some power.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>but if you really have to, the extra =
length should=20
not pose drastic problems. Think of how far hydralic fluid has to =
be=20
pumped on a backhoe. transient response can be improved by going =
to a=20
bigger flow orifice in the back of the pump on the high pressure supply =
side=20
(for GM saginaw pumps). You can also shim the pressure relief to =
get more=20
pressure, but I don't recommend that unless you have some =
gauges.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Mike D.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dsfwilliams at comcast.net =
href=3D"mailto:sfwilliams at comcast.net">Scott F.=20
Williams</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Ddiy_efi at diy-efi.org=20
href=3D"mailto:diy_efi at diy-efi.org">List for general do-it-yourself =
EFI talk</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, April 01, 2003 =
3:13=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Diy_efi] power =
steering pump=20
relocation</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=3D010495320-01042003><FONT face=3DArial =
color=3D#0000ff=20
size=3D2>Folks, I'm converting to an electric power steering pump in =
my vehicle.=20
This pump was originally positioned in the engine bay with=20
approximately 3.5 foot long feed and return lines. My intent =
is to=20
mount the pump inside the cabin -probably behind the passenger's seat =
or even=20
in the spare tire well. My question is whether or not the extra length =
should=20
be a concern. The application here is a VW Scirocco. The distance=20
from firewall to the seat area is about 4 feet. The spare =
tire well=20
is an additional 4 feet beyond that point, I=20
estimate.</FONT></SPAN></DIV>
<DIV><SPAN class=3D010495320-01042003><FONT face=3DArial =
color=3D#0000ff=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D010495320-01042003><FONT face=3DArial =
color=3D#0000ff=20
size=3D2>Question: Should this extra tubing length pose any issues =
from a=20
pumping efficiency point of view? Forget about calculations here. Just =
let me=20
know your gut feeling about it, please.</FONT></SPAN></DIV>
<DIV><SPAN class=3D010495320-01042003><FONT face=3DArial =
color=3D#0000ff=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D010495320-01042003><FONT face=3DArial =
color=3D#0000ff=20
size=3D2>Thanks,</FONT></SPAN></DIV>
<DIV><FONT size=3D2><SPAN class=3D010495320-01042003><FONT =
face=3DArial=20
color=3D#0000ff></FONT></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN =
class=3D010495320-01042003>P.S.=20
My primary motivation here is to move the weight as low as possible =
and=20
farther back for best weight distribution.</SPAN></FONT></DIV>
<DIV><FONT size=3D2><SPAN class=3D010495320-01042003><FONT =
face=3DArial=20
color=3D#0000ff>'</FONT></SPAN>--<BR>Scott F. Williams<BR>Team=20
Director<BR>Usually Sideways Rally Team </FONT> </DIV>
<BLOCKQUOTE>
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B>=20
diy_efi-bounces at diy-efi.org =
[mailto:diy_efi-bounces at diy-efi.org]<B>On Behalf=20
Of </B>CJ Virtual<BR><B>Sent:</B> Tuesday, April 01, 2003 3:49=20
PM<BR><B>To:</B> List for general do-it-yourself EFI =
talk<BR><B>Subject:</B>=20
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=20
very lean condition. This lean condition will cause a situation =
similar to=20
that of a blow torch and can result in the blades on the turbine =
melting=20
(burning). This how ever depends on hoy much air you inject. Anothe =
question=20
is, what flow rate will give y ou the air needed. =20
<P>You can spool easier by using NOs. Nos kicks in extra fuel and =
oxygen,=20
then the turbo takes over=20
<P> <B><I>Bill Washington =
<bill.washington at nec.com.au></I></B>=20
wrote:=20
<BLOCKQUOTE=20
style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff =
2px solid">Fellas,<BR>A=20
crazy thought just occurred to me - does anyone know if the =
<BR>following=20
has been tried, and if so with what results:<BR>If a compressed =
air bottle=20
was plumbed into the exhaust manifold <BR>(pre-turbo) through an=20
electronically controlled valve arranged to give <BR>a (short) =
injection=20
of HP air into the manifold when the WOT switch is <BR>hit, it =
should help=20
spool the turbo quickly and give a (false) lean <BR>indication on =
the=20
lambda sensor which should result in a brief <BR>enrichment - =
Rats, just=20
remembered - the Lambda is ignored at WOT - Just <BR>a wild =
thought from=20
someone with no direct experience playing with turbos.<BR><BR>Bill =
=
W<BR><BR><BR><BR>_______________________________________________<BR>Diy_e=
fi=20
mailing=20
=
list<BR>Diy_efi at diy-efi.org<BR>http://www.diy-efi.org/mailman/listinfo/di=
y_efi</BLOCKQUOTE>
<P><BR>
<HR SIZE=3D1>
Do you Yahoo!?<BR><A=20
=
href=3D"http://us.rd.yahoo.com/finance/mailsig/*http://tax.yahoo.com">Yah=
oo!=20
Tax Center</A> - File online, calculators, forms, and =
more</BLOCKQUOTE>
<P>
<HR>
<P></P>_______________________________________________<BR>Diy_efi =
mailing=20
=
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