KA24DE-T

[SF5]

Basically still in the proccess of gathering parts.

Missing flywheel, flywheel bolts and backing plate to complete the 5 speed swap.
Gonna pick up an Fidanza Flywheel on Saturday morning.. gonna try to find suitable bolts in a parts store or by Nissan

[SF5]

Done reading up on Edis Patent and consulting with a Edis/Megasquirt guru. Found out that I won't be able to run edis-4 to fire 4 separate coils per coil driver on the Edis-4 system since it is a 2 drive setup producing 6 amps. separating each drive in two to produce signal for a coils will produce a 3 amp current signal due to internal current limiting circuits. Previously thought that in order to counter this two Edis 4 modules are going to be ran as in the diagram below. However, by simply connecting the coils in series in a wasted spark configuration I am able to have individual COPS.


The engine bay will be cleaned getting rid of all unneccessary wires, vaccuum lines hoses, though I intend to retain air conditioning and power steering. This will be the most difficult aspect of the build but I will work around it.More information will be posted once I have assembled my MS II V3.0, it is going to be ran full standalone, controlling fuel pump,fan,tach, ignition, fuel and maybe boost. For $250 you can't beat that price.

[scientist]

jus a thought...you won't be able to leave the Stock ECU in to run A/c?

[SF5]

Some info from the Factory Service Manual. This explains ECU roll in reference to the Air condition system.

[SF5]

I think it is possible to leave the ECU in control the air condition, providing that it receives Power, ground and tps signal, maybe rpm signal as well. The unknown factor is whether Megasquirt will be affected by this. I really wanted to get rid of the entire engine harness. I go figure this ting out, I will read and see what really necessary, So far from what I am reading the system itself is pretty redundant, in that there are switches and valves that basically perform relatively the same tasks

[SF5]

http://www.youtube.com/watch?v=XCxOapZ0E_0

A lil encouragement for me....

[SF5]

Been fidling with the megasquirt board, doing some assembly, I must say it is a task in itself... however patience and determination is the key. the end result will be the big reward. I'll post pics later, still needs testing on the stim.

This is the unassembled megasquirt V3.0 kit.


This is what the finished product looks like once done


It is contained in this nice aluminum box, with harness out one end and serial port on the other.

That's the stim... used to test the megasquirt (somehow provides inputs and outputs that a vehicle would provide when the ms is connected... that way you can crosscheck ur progress see if everything works right.

[Preppy]

wish you luck on your project, looks cool

[Evo-Man]

Another Scientist, do your do bro, interesting.

[Lucian_rider]

Hi Ka24DET,

How much did the megasquirt cost? I purchased a complete stand alone Link ECU with harness from the dealer in Trinidad for $800.00 US and it was a fairly simple install and has all of the basic bells and whistles needed for either a NA or turbo engine. At the time it was a lot of money for me but compared to other stand alone units with harness it was a good buy.

I have my air con running without all of the stock ECU crap which is basically unneccessary. What I did was to connect the compressor to the Idle up control solenoid valve on the throttle body, I also connected the power steering oil pressure switch to this via a diode to prevent feedback. So when I turn on the air con the IACV solenoid opens raising the idle in addition when you turn the wheel hard over it raises the idle as well.

If you need aditional power when over taking I suggest you either wire up a microswitch on the throttle pedal to turn off the air con at WOT or just manually switch it off.

The actual idle control solenoid I removed and replaced the plunger with an adjustable bolt and lock nut so that idle is set manually rather than having the ecu control it. The Link could have done it but I used the idle control output to control the swirl control valve which are the butterfly valves in the intake manifold. I have it factory set to open at 3000 rpm.

I have the complete Nissan workshop manual if you need any specific wiring diagrams scanned. It is however for the D22 series of pickups and covers the full range of engines including the KA24DE.