Good lord man, how hard would it be just to put stock stuff back in it and make it run right ? I'm gettin a headache just trying to figure out why you want to do this in the first place.

Come on man - have you never done something just for the challenge - like maybe turbo charge an engine 

The confusion here is in your concept of TDC - you are looking at it from a "combustion" event point of view - which is incorrect.
The distributor ALWAYS knows which cylinder is on the compression stroke - it's the one the rotor is pointing to.

Thanks for the clarification!

Quote
Does anyone know if the pre 96 dizzy and housing will 'mechanically' fit the 96+ head (with or without swapping cam gear)?  That sounds like the ticket to me.

That's the piece I'm not certain on - I have this recollection of being told that it can be done - but I have not tried it personally.

I took a quick look at the back of my sami cam last night.  I didn't see any sort of pin or retainer that holds the gear on the back of it.  Not sure without a bit more looking/digging how one would swap the gears.

Good lord man, how hard would it be just to put stock stuff back in it and make it run right ? I'm gettin a headache just trying to figure out why you want to do this in the first place.

Ya probably much much easier.  I chose my direction for full tunability on a future turbo'd rig.  Also when I leave my comfort zone and try a new route, I learn a lot of things.  Keeps my brain occupied.  I will be a megasquirt pro here before too long!
Here is part of the build diary:
http://www.zukiworld.com/forum/build-diaries-how-to-diy/build-up-87-sami-1-6-16v-megasquirt/

Whew, what a project.  So i went to my pick n pull and lucked out on a 96 dizzy.  I will be scouring over this option next week (bow season is open here!).

I actually went out there to look for the rig i orig. pulled the cam housing from (later distributor less model) to snag the cam shaft.

Kudos for all the comments guys.  I will update as i move forward.  I may have a EDIS-4 COP setup up for grabs!

I took a quick look at the back of my sami cam last night.  I didn't see any sort of pin or retainer that holds the gear on the back of it.  Not sure without a bit more looking/digging how one would swap the gears.

ahhh - swap the gear on the distributor ??

Quote from: bentparts on September 29, 2011, 05:56:00 PM

  Good lord man, how hard would it be just to put stock stuff back in it and make it run right ? I'm gettin a headache just trying to figure out why you want to do this in the first place.

Come on man - have you never done something just for the challenge - like maybe turbo charge an engine 

Well, yeah, but it seems that doing the turbo was much easier than this mod. Gotta hand it to you zuki1018 you are definitely up for a challange! I hope you get it worked out as it may have future implacations for my turbo setup. Could always use better fueling. 

Thanks. I was not against using the factory Ecu and harness. I was just missing the dizzy and already had the Ms box. In fact I had started tearing into the harness.

All in all after my full write up it will be pretty easy to do. I think using the stock dizzy will be my recommended method. We will see next week! Honesty the most work has been scouring the fsm tracing each wire color and its function to wire it correct into Ms. Countless hours of wiring! I plan to offer up a diagram here for others. Hmm i wonder how many prestige points that is worth!!!

It's worth a BUNCH of Prestige points, but I can only give you 1 at a time 

I actually went out there to look for the rig i orig. pulled the cam housing from (later distributor less model) to snag the cam shaft.

I just noticed this - there is a version of the 16v G16 engine that is distributorless and has no crank sensor and depends only on the cam position sensor for timing information - you might need the entire head assembly though, because I think the cam position sensor fits into the head.

I'm not certain which US vehicles would have had this engine - we got it in the 98+ 1.6 Grand Vitaras which were wither not sold in the US or would have been quite rare - 99+ 1.6 2 door Vitara/Tracker - and possibly the later 1.6 Esteems.

Ya I didn't pay attention to the year or make. The cam sensor housing mathches the 16v dizzy housing bolt pattern. That was I was talking about early on. I used the housing as a block off. The sensor reads a wheel on the back of the crank. This wheel is obviously different than the dizzy gear on my existing 96 cam. I'm learning as I go but hind sight I woulda grabbed the coil packs and cam off that later model from day one.  But really.. how important is sequential or even wasted spark vs a dizzy on a low boosted lower rpm application. I do like the cleaner engine bay  though.

Using a distributor is in essence a sequential spark system, and wasted spark is an
easy way to time an engine with only half of the ignition inputs, really the wasted
spark system could add better resolution to the timing by giving more time between
inputs

As a side note, you could modify a distributor with a timing pickup to feed info to the
MS system.  The MS is a very flexible system and all it needs is the input information
to deliver the outputs

Keep it up, good work

Wild