1UZ-FE: 4.0L Lexus V8 dual distributors ???
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The idea of the dual dizzy option is that you set four trigger points per 360 deg (so those two dizzy signals would need combining into one second trigger)
You then define just two spark outputs and enable dual dizzy.
So when it _would_ have fired output C it does A instead, same for D -> B
James
You then define just two spark outputs and enable dual dizzy.
So when it _would_ have fired output C it does A instead, same for D -> B
James
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That is exactly the setup I was envisaging - hope it works.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
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well it sounds like a resonable striaght forward code manipulation.
altho beyond my talents
so i see no reson at all for it not to work.
i think youve just made a 1UZ-FE V8 conversion about $450NZD
cheaper to do and thats buying a pre-assembled MSI V3.0pcb
nice one James.
I will report back as soon as i have run it on an engine.
Cheers,
Daniel.
altho beyond my talents
so i see no reson at all for it not to work.
i think youve just made a 1UZ-FE V8 conversion about $450NZD
cheaper to do and thats buying a pre-assembled MSI V3.0pcb
nice one James.
I will report back as soon as i have run it on an engine.
Cheers,
Daniel.
There is no spoon.....
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I was presuming that they were ordinary HT distributors fired by a coil with a rotor arm distributing the spark to four towers.
You can go waste spark by all means, but this discussion is about trying to use most of the OEM hardware.
James
You can go waste spark by all means, but this discussion is about trying to use most of the OEM hardware.
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
Re:
Hi James, I know this is very old post, I just wondering if anyone got the Lexus 1UZ-FE stock ignition to work with MS1_extra. I wanted to install these motor in off-road car.jsmcortina wrote:In the Extra 027 code I added a "dual dizzy" feature. I have stim tested it and it appears to do what I was expecting. It requires the wheel decoder.
On the Lexus V8 is the 24/2 style double trigger dizzy which should be suitable. Using a couple of VB921 to drive the coils ought to work.
Anyone game for alpha testing this feature?
James
Thanks
Sommay
Dune Buggy with Toyota 3SGTE T3/T4 turbo
MS1 V2.2 029V - EDIS-4, Relay Board and LM-1
MS1 V2.2 029V - EDIS-4, Relay Board and LM-1
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Re: 1UZ-FE: 4.0L Lexus V8 dual distributors ???
The Nippondenso 12 tooth crank / 1 tooth cam wheel does not work well with the single interrupt on MS1, but MS2 or MS3 can handle it pretty easily as they have more interrupts available. If you must use MS1 on this engine, convert to a missing tooth crank wheel for the input.
On the output side, dual distributors are supported in MS1.
On the output side, dual distributors are supported in MS1.
Matt Cramer -1966 Dodge Dart slant six running on MS3X