MattCraneCustoms
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| posted on 30/8/06 at 06:52 PM |
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MEGAJOLT / MEGASQUIRT / ZETEC
Hi all. As a few of you probably know, I'm starting a build of a (kind of 'lo' locost with hopefully a brand new 2.0 Zetec engine.
Now I will have to remove the standard injection to fit in am I correct in this? Then Regarding ignition, I plan to use Megajolt LJ. This will provide
my ignition timing / map? So what on earth is Megasquirt? Is that the same as MJLJ? And one other thing, what will I need on the intake ideally to
pass SVA? someone said it is unlikely to pass on Twin 40's, and I know Ill need a cat. If a few of you can confirm what I've just said and
steer me in the right direction, Ill be grateful.
Regards
Matt Crane
[Edited on 30/8/06 by MattCraneCustoms]
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BKLOCO
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| posted on 30/8/06 at 07:00 PM |
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If you're running a post Aug 95 engine you have no chance of making the emmisions regs with carbs.
You will need FI. So rather than MegaJolt you will meed MegaSquirt which controls the fueling as well as the ign.
You are correct in saying you will need a cat.
I strongly recommend you do a lot more research into this project before making too many costly mistakes.
A pre Aug 95 Zetec will meet the lower emissions regs for that year with properly set up carbs and megajolt plus you would not need a cat.
[Edited on 30-8-06 by BKLOCO]
Experience is what you get when you don't get what you want!!! 
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02GF74
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| posted on 30/8/06 at 09:13 PM |
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all the answers are on the MS webshite.
AFAIK you reatin the injectors but triggerthem from the MS board; it uses the appropriate sensors to do the timeing and fuelling.
how come you want to use a new zetec?
why not duratec?
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MattCraneCustoms
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| posted on 30/8/06 at 09:16 PM |
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Well from what I've been told a new zetec will cost around £500 now that the Duratec has replaced it. That seems an alright price to me. Ive
been on the MS and MJLJ sites, from what I read, MS does injection and not ignition, and MJLJ ignition not injection. Is this right? looking at the
two of them is confusing the hell out of me now!!
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itguy
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| posted on 30/8/06 at 09:24 PM |
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Ok, lets clear this up once and for all....
MegaJolt Lite Jnr is ignition only and requires an EDIS module to control the VR sensor etc
Megasquirt comes in many variants, however the one that you need to consider most of all is Megasquirt I (one, not II or two) with a v3.0 PCB.
This megasquirt hardware is capable of firing a single coil when used with a suitable megasquirt firmware, like Megasquirt'N'Spark Extra.
To get the megasquirt hardware to fire a zetec/ford coilpack directly (no EDIS module externally) then the PCB needs a few additional components to be
installed when its built, and again, it needs to be running Megasquirt'N'Spark Extra firmware.
It is also possible to use an external EDIS module with the MS hardware, but to be honest if your running a zetec with ford coilpack just go for the
direct-drive with two ignition drivers on the PCB. Its what I run on my zetec and it works fine.
The reason you've read that Megasquirt doesn't do ignition is because the BASIC, installed Megasquirt firmware doesn't support it,
but the MegaSquirt'N'Spark Extra does.
Will.
[Edited on 30/8/06 by itguy]
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BKLOCO
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| posted on 31/8/06 at 04:39 AM |
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quote:
Originally posted by itguy
however the one that you need to consider most of all is Megasquirt I (one, not II or two) with a v3.0 PCB.
[Edited on 30/8/06 by itguy]
MS II V3 will also fire ign via EDIS.
Don't be so dogmatic.
There are many ways of doing the same thing.
There are several advantages to using MS II on a V3 PCB. not least of all is the fact that it is a much more "complete" package with less
reliance on external components.
Flyback problems have all but been eliminated and the whole system is much more configurable than MS I V2.2
It will only be a matter of time until code is written to support a second coil driver to eliminate the need for EDIS.
Experience is what you get when you don't get what you want!!!
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