Has anyone used the Dual Sync dist?
01-19-2012, 10:13 PM
#1
Staging Lane
Thread Starter
Has anyone used the Dual Sync dist? Has anyone used the dual sync distributor to control a "411" PCM?
The reason is that I would love to have the Gen III programability for diferent brand engines and FAST makes dual sync's for many engines.
The trick would be to use a 2002 Mexican Cheyenne OS I guess, because these trucks came with the L31 Vortec engine and the 411 PCM, these engines used a 4X crank signal and a 1X cam signal, so at least theoretically sounds feasible.
Anyone has done it? or any ideas?
I know... I know, the first reaction is to say "Get yourself an Accel DFI or FAST ECU" but these are cost prohibitive, and I believe that the Gen III has way more adjustability than the entry level systems like the Painless.
Thank you for your comments.
Rat Chevelle
The reason is that I would love to have the Gen III programability for diferent brand engines and FAST makes dual sync's for many engines.
The trick would be to use a 2002 Mexican Cheyenne OS I guess, because these trucks came with the L31 Vortec engine and the 411 PCM, these engines used a 4X crank signal and a 1X cam signal, so at least theoretically sounds feasible.
Anyone has done it? or any ideas?
I know... I know, the first reaction is to say "Get yourself an Accel DFI or FAST ECU" but these are cost prohibitive, and I believe that the Gen III has way more adjustability than the entry level systems like the Painless.
Thank you for your comments.
Rat Chevelle
01-23-2012, 08:57 PM
#5
I don't think the dual sync distributor will work for this application. It's been a while since I set up a FAST system with this distributor, but I'm pretty sure the CAM sync signal is just a single pulse that precedes #1 TDC by 50 degrees.
The GM cam signal is a high and low signal, that each lasts half a revolution of the camshaft.
The GM cam signal is a high and low signal, that each lasts half a revolution of the camshaft.
01-24-2012, 03:54 PM
#7
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As I understand the issue... all 2002 Vortec 5.7's use the '411 PCM. The vortec distributor has a hall effect sensor that is used for cam position built in. However, without upgrading to 24x crank signal you will not be able to run coil near plug (distributor-less) ignition.
So absolutely you can use a '411 with a distributor mounted cam sensor, but you will have to either use the single coil / distributor system or go to a 24x sensor and use CNP. The second option is well documented in the LT1 section.
So absolutely you can use a '411 with a distributor mounted cam sensor, but you will have to either use the single coil / distributor system or go to a 24x sensor and use CNP. The second option is well documented in the LT1 section.
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01-24-2012, 09:32 PM
#9
As I understand the issue... all 2002 Vortec 5.7's use the '411 PCM. The vortec distributor has a hall effect sensor that is used for cam position built in. However, without upgrading to 24x crank signal you will not be able to run coil near plug (distributor-less) ignition.
So absolutely you can use a '411 with a distributor mounted cam sensor, but you will have to either use the single coil / distributor system or go to a 24x sensor and use CNP. The second option is well documented in the LT1 section.
So absolutely you can use a '411 with a distributor mounted cam sensor, but you will have to either use the single coil / distributor system or go to a 24x sensor and use CNP. The second option is well documented in the LT1 section.
"The trick would be to use a 2002 Mexican Cheyenne OS I guess, because these trucks came with the L31 Vortec engine and the 411 PCM, these engines used a 4X crank signal and a 1X cam signal, so at least theoretically sounds feasible."
06-16-2014, 06:34 AM
#10
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Looking for an update on this thread.
We have the same exact question as we would like to use the Accel dual sync distributor to provide the cam and crank signals for a GM 411 PCM to put SEFI-MA onto a 500CID Cadillac V8.
Anyone had success using a Accel Dual Sync distributor with a 411 PCM?
We have the same exact question as we would like to use the Accel dual sync distributor to provide the cam and crank signals for a GM 411 PCM to put SEFI-MA onto a 500CID Cadillac V8.
Anyone had success using a Accel Dual Sync distributor with a 411 PCM?
05-19-2016, 11:19 AM
#11
Staging Lane
Thread Starter
It's alive! I guess Bass-ackwards worked just fine, I got the 5.0 SBF running with a Mallory dual sync and a Vortec ECU.
The SBF uses an 8 stack intake therefore I had to go speed density.
The SBF uses an 8 stack intake therefore I had to go speed density.
06-13-2016, 09:11 AM
#15
I am using a accel dual sync with a Motec M48 setup. The crank is an 8x, so I don't see why you can't make that a 24x setup. Very cool idea. I was looking into trying to make the L31 coil on plug, but I don't believe it is doable. There should be quite a bit of information on this topic.
411, 4x, 57, cam, conversion, distributor, dostributor, dual, frod, needed, pcm, performance, pip, signal, sync, vortec
