mega squirt help!

[DrifterBoy240]

i am going KA n/a and i am going with the mega squirt system and i was just wondewring what i am going to need to build the ecu and what mega squirt is the best pick, cuase i have seen other mega squirt systems just version 2.2 and so on but i just would like to know what i am going to need when i build it. my car is also going down this winter to build it.

[Kenrik]

i am going KA n/a and i am going with the mega squirt system and i was just wondewring what i am going to need to build the ecu and what mega squirt is the best pick, cuase i have seen other mega squirt systems just version 2.2 and so on but i just would like to know what i am going to need when i build it. my car is also going down this winter to build it.

Why don't you ask the Mega Squirt guys?

[deviousKA]

You need to decide on or plan your ignition system first, that will be the most time consuming part of the install. Everything else in the wiring and setup will be general MS.

The nissan obd1 distributors can be used with a modified optical trigger wheel and HEI.

Or you could swap over to something like EDIS.

Dont worry about the megasquirt version number, v2.2/v3.0 both work great and can be used as MS1 or MS2. You will have to do a few small mods inside the MS for whatever ignition system you are using, msefi.com forum would be the place to check.

[DrifterBoy240]

where do i get the edis system or do i have to find it on a car, and swap it on to mine? or do they sell kits for it? if so where can i get the kit?

[raging panda]

devious KA, could you elaborate a little on the distributor thing? I have been thinking about going with M/S and wasn't sure if i could use the stock distributor. Is odbI going to be only the early S14, or also the dohc S13? What other changes would be needed to my ignition system to make it work with M/S? tyia

[deviousKA]

The obd1 distributors have an internal optical CAS. The actual hardware is basically usable, but the optical disc/wheel is not. It has 360 small slits around the outer edge, and another set that is inboard (forget the count arrangement).

With a proper disc swapped in, the optical unit can be used to feed the MS a tach signal. A ignition output from the ms could then be used to feed a simple HEI unit, which would fire the distributor and coil properly.

The Z car guys have been doing this, we may be able to use the disc that they use (dont know which?). A mitsubishi or mazda disc could possibly be fit as well, certain versions of these have the proper cut.

What we are looking for is a disc with 4 slits around the outer edge, and then inboard on the disc, a single slit to sync everything up. The trigger angle in the MS can be adjusted for this, we just need a single slit.

I was doing a little bit of reading on this because I want to set up a kit to squirt the obd1 nissans using as much oem hardware as possible. This would consist of a ecu harness connector adapter, distributor wheel/HEI mod, and a few small wiring changes in the fuse box.

There was some discussion on the MSEFI.com board about the nissan, do a search on there for some more detail. The obd2 distributors with the internal coil might be able to work with modification, but will be more work. Best to stick with a simple external coil type.

[DrifterBoy240]

still havent answered my question where can i get the EDIS from?

[deviousKA]

quick search on msefi.com would have found the answer.

ford escort/mercury tracer 1.9l, 91 and up?.

[DrifterBoy240]

cool thanks i'll look on the msefi forum to. thanks, by the way devious what cams are good for the dual cam KA, all i have found is the jwt cams. do you make any cams or know of some one who makes cams for the dual cam.

[deviousKA]

Colt Cams would have the best current commerical offering for dohc cams. There is a lack of billets for other grinders.

You can buy colt cams at PDM racing.

[DrifterBoy240]

thank you very much.