[Diy_efi] Newbie questions on spark and PE tables
Frank McCracken
frankmccracken at shaw.ca
Tue Feb 15 06:24:34 GMT 2005
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Ski;
It sounds like you have almost the same combo as me. TBI? Light or heavy =
car? My intake is just a performer. I am waiting for a Holley 502-6 TB. =
I have not run my car thru the gears yet, but going down the road in =
1st-2nd gear it runs and goes like hell with my stock TB with the usual =
mods. AdjFP, Inj Spacer, "Massaged" ventury top. Just getting to the =
point of building my interface cable, so I will be following this thread =
with great interest.=20
Frank.
----- Original Message -----=20
From: Bret Levandowski=20
To: diy_efi at diy-efi.org=20
Sent: Monday, February 14, 2005 7:40 PM
Subject: [Diy_efi] Newbie questions on spark and PE tables
Short background... I am a GM driveability tech but have ZERO =
knowledge of the programming aspect of EFI. I am running a '78 SB 400, =
CR9.5:1, 1.94/1.6 mildly ported heads, mild RV cam (don't have the specs =
on me), headers and an Edlebrock Airgapper intake. I'm using RT Tuner =
from C.A.T.S. and the Moates Autoprom. I have success in setting up my =
VE tables so my 'normal' driving conditions are fine. My problem is when =
I hammer the throttle for PE mode. When I had my 750 Edelbrock, it would =
go like scalded dog. Now, it just seems to bog. I've had it on the =
freeway with the emulator and adjusted the PE AFR form the point of =
billowing black smoke to loss of acceleration. Nothing in between seems =
to change the 'bog' it has. I haven't messed with the spark tables yet. =
I'm trying to tune one table at a time. More fuel, more spark; more MAP, =
less spark; I honestly don't know where the heck to start. Since my chip =
was originall prog'd by someone else (who didn't listen to anything =
about the running conditions and data I was giving him). I've managed to =
iron out all the VE mistakes, now on to the rest. I need someone whose =
willing to help me learn. I'm told, this is the place. Thanks, Ski
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Yahoo! Search presents - Jib Jab's 'Second Term'
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Ski;</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>It sounds like you have almost the same =
combo as=20
me. TBI? Light or heavy car? My intake is just a performer. I am waiting =
for a=20
Holley 502-6 TB. I have not run my car thru the gears yet, but going =
down the=20
road in 1st-2nd gear it runs and goes like hell with my stock TB with =
the usual=20
mods. AdjFP, Inj Spacer, "Massaged" ventury top. Just getting to =
the point=20
of building my interface cable, so I will be following this thread with =
great=20
interest. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Frank.</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=3Dskishop69 at yahoo.com =
href=3D"mailto:skishop69 at yahoo.com">Bret=20
Levandowski</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">diy_efi at diy-efi.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, February 14, 2005 =
7:40=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Diy_efi] Newbie =
questions on=20
spark and PE tables</DIV>
<DIV><BR></DIV>
<DIV>Short background... I am a GM driveability tech but have ZERO =
knowledge=20
of the programming aspect of EFI. I am running a '78 SB 400, CR9.5:1, =
1.94/1.6=20
mildly ported heads, mild RV cam (don't have the specs on me), headers =
and an=20
Edlebrock Airgapper intake. I'm using RT Tuner from C.A.T.S. and the =
Moates=20
Autoprom. I have success in setting up my VE tables so =
my 'normal'=20
driving conditions are fine. My problem is when I hammer the throttle =
for PE=20
mode. When I had my 750 Edelbrock, it would go like scalded dog. Now, =
it just=20
seems to bog. I've had it on the freeway with the emulator and =
adjusted the PE=20
AFR form the point of billowing black smoke to loss of acceleration. =
Nothing=20
in between seems to change the 'bog' it has. I haven't messed with the =
spark=20
tables yet. I'm trying to tune one table at a time. More fuel, more =
spark;=20
more MAP, less spark; I honestly don't know where the heck to start. =
Since my=20
chip was originall prog'd by someone else (who didn't listen to =
anything about=20
the running conditions and data I was giving him). I've managed to =
iron out=20
all the VE mistakes, now on to the rest. I need someone whose willing =
to help=20
me learn. I'm told, this is the place. Thanks, Ski</DIV>
<P>
<HR SIZE=3D1>
Do you Yahoo!?<BR>Yahoo! Search presents - <A=20
=
href=3D"http://us.rd.yahoo.com/evt=3D30648/*http://movies.yahoo.com/movie=
s/feature/jibjabinaugural.html">Jib=20
Jab's 'Second Term'</A>
<P>
<HR>
<P></P>_______________________________________________<BR>diy_efi =
mailing=20
=
list<BR>diy_efi at diy-efi.org<BR>http://lists.diy-efi.org/mailman/listinfo/=
diy_efi<BR></BLOCKQUOTE></BODY></HTML>
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