LS1 Swap FAQs
05-31-2009, 07:48 AM
#141
1999 Silverado LQ4 p1.pdf
1999 Silverado LQ4 p2.pdf
1999 Silverado LQ4 p3.pdf
1999 Silverado LQ4 p4.pdf
06-10-2009, 01:20 AM
#146
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Wiring for a 2004 lq4 van 12 sec SS,
Would you have a wiring diagram for a 2004 LQ4 van with a cable operated TB,I believe itis out of a GMC Savannah 3500 but not positve. I have been looking for a while and have not found one. I even tried alldata.com. Apparently the cable operated TB wasn't very common.
Thanks in advance,
LVJimmy
Would you have a wiring diagram for a 2004 LQ4 van with a cable operated TB,I believe itis out of a GMC Savannah 3500 but not positve. I have been looking for a while and have not found one. I even tried alldata.com. Apparently the cable operated TB wasn't very common.
Thanks in advance,
LVJimmy
07-05-2009, 05:37 AM
#147
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why cant there be a serial vats bypass be made at home? can anybody explain or come up with something.if not can i still run my 4l60e with my lm7 ecu and feed the engine with a home made ecu to do spark and fuel? regards abri
07-05-2009, 06:02 AM
#148
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thanks for very good info so far.i feel like a child in a sweet shop today. at the back of the engine block [left side ] is the following no.stamped by a centre punch cx1184968. the last no could also be a 6.ie cx1184966. it was sold to me as a lm7 but i dont know out of what vehicle it came.any suggestions by the tomrrows my birthday all wellcome,just bring good chevy stories along. regards abri
08-02-2009, 10:27 AM
#150
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You have to splice into the VSS out from the trans and hook that to the Autometer speedo directly. The feed coming out of the PCM isn't strong enough for the Autometer speedo's to read not that it matters really the Autometer electronic speedos are easy to calibrate for any gears.
*edit* While I'm at it I might as well post about the autometer tach issue as well. They work fine set to 4cyl pulse but require a boost feed 12+ through a 4K resistor to boost the signal from the PCM out. 4K resistors are cheap and readilly available so you simply run 12v+ from a source like accessory out on your fuse box and run that to the 4K then coming out of the 4k you just splice that into the feed from the PCM to the tach. Works great thanks to Speartech for that tip
*edit* While I'm at it I might as well post about the autometer tach issue as well. They work fine set to 4cyl pulse but require a boost feed 12+ through a 4K resistor to boost the signal from the PCM out. 4K resistors are cheap and readilly available so you simply run 12v+ from a source like accessory out on your fuse box and run that to the 4K then coming out of the 4k you just splice that into the feed from the PCM to the tach. Works great thanks to Speartech for that tip
08-02-2009, 01:43 PM
#151
My tach works great, it's just about 500 RPMs off. Does it need to be boosted as much? As far as my speedo goes...when hooked to the low signal VSS wire (Pin 20), I get nothing. I hooked it to the VSS wire (Pin 21) and it goes from 0-140. Is there a way to add resistors to make it work. I'd really like to not splice into the transmission.
As for the speedo there was no other solution that I am aware of aside from splicing directly into the VSS out feed from the trans itself. Its not really a big deal and is easy to find its right below the shifter.
08-03-2009, 05:19 PM
#152
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If the tach is working then your signal strength should be ok ( meaning you dont need the boost or pull up feed ) If its not reading accurately then it sounds like a calibration concern that can be adjusted either via a tuning suite or through the bakers electronic signal conversion box but 500 RPM is so close maybe your tach is gone out of whack?
As for the speedo there was no other solution that I am aware of aside from splicing directly into the VSS out feed from the trans itself. Its not really a big deal and is easy to find its right below the shifter.
As for the speedo there was no other solution that I am aware of aside from splicing directly into the VSS out feed from the trans itself. Its not really a big deal and is easy to find its right below the shifter.
08-17-2009, 10:05 PM
#153
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So far I have seen no mention of converting to a mechanical speedo so here is the cable-x box link. I will report on how it will work after I get it in.
http://www.abbott-tach.com/cablex.htm
http://www.abbott-tach.com/cablex.htm
Scott
09-17-2009, 05:57 PM
#154
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I've looked over this thread a few times and may have over looked the answer I'm seeking, but what fuel pumps did you guys use? I got the info on the corvette filter & regulator, but I'm still searching on best/cheapest pumps to use (external). thanks.
09-17-2009, 06:19 PM
#156
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thanks for the info, I currently have this pump installed:
http://www.malloryperformance.com/Pr...minselection=4
but the psi rating appears to be too low. what do you think?
http://www.malloryperformance.com/Pr...minselection=4
but the psi rating appears to be too low. what do you think?
10-02-2009, 01:57 PM
#157
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Yeah, that appears to be too low. Someone else may chime in, but an LS1 requires ~40-50 psi I think. I went with the Walbro 255LPH. But I plan on having room to add to my setup later.
11-30-2009, 09:27 AM
#159
As per request.. 
2004 Escalade LQ9
04 escalade 6.0 1of5.pdf
04 escalade 6.0 2of5.pdf
04 escalade 6.0 3of5.pdf
04 escalade 6.0 4of5.pdf
04 escalade 6.0 5of5.pdf
2004 Escalade LQ9
04 escalade 6.0 1of5.pdf
04 escalade 6.0 2of5.pdf
04 escalade 6.0 3of5.pdf
04 escalade 6.0 4of5.pdf
04 escalade 6.0 5of5.pdf
12-14-2009, 04:58 PM
#160
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How To Wire Your Engine
its a pdf version for a DIY harness.
its a pdf version for a DIY harness.
