MegaSquirt tune in Perth?

[wydra]

Hi guys,

I'm getting towards the pointy end of my turbo project but want to have everything in hand before I actually pull the car off the road.
It seems most people recommend the Megasquirt ECU so I am happy enough to go with one of these. The question is, is there anyone in Perth can do the final tune on these?

Are people with 2000 NB8A's using the DIYPNP MS2?
Looks like a Alternator Voltage Regulation mod needs to be dont on the ECU to get it regulating the alternter power. Any other tips or tricks i need to be aware of when using a MS2?

Thanks,
Dale

[gslender]

I've done a few now. Happy to help remotely anyway I can.

G

[wydra]

Thanks mate,

I was thinking of building the DIYPNP kit.
http://www.diyautotune.com/catalog/diyp ... p-384.html

looks like there is a bit to it, seems with the 99-00 cars you need to build a alternator regulation unit


Also seems I will need to decide between batch and sequential injection, is there any major benefits of either?

I guess the goal will to be get everything built and installed while the car is still N/A. Then remove the AFM, add the new injectors and get it ready for boost.

Anything else I need to think about with this kit?

[gslender]

Kit really isn't that hard to build. The parts are all well labeled and identified. I find it fairly therapeutic to build, but depends on whether you like doing that stuff.

I'd recommend seq Inj as I think on your model it is already wired for it, it's a cheap add on and no down side to the tune by having it. With big injectors you can ensure the AFR stay steady.

G

[bootz]

I think geofiz is doing something with a na8, but I would be interested as well in a NB8B setup.

[wydra]

Ok I have decided to bite tthe bullet and get a megasquirt.

Can someone school me on whats what with these and the 2000 NB8A BP?

Is there much of a difference between the MS2 and MS3?
I'm going to go with the DIYPNP kit, It sems most/all? are using the MS2 boards. Is this right? is this going to do everything i need of it?

I am looking at the following:
The Kit itself.
http://www.diyautotune.com/catalog/diyp ... p-384.html
Sequential upgrade kit.
http://www.diyautotune.com/catalog/diyp ... p-386.html
Boost Module.
http://www.diyautotune.com/catalog/pcbv ... p-160.html
Boost Solenoid.
http://www.diyautotune.com/catalog/ebc- ... p-285.html

With these is it worth getting some sort of wideband O2 option?
http://www.diyautotune.com/catalog/wide ... -c-23.html
For the price it seems to be only about $50 or so more to get the guage aswell as the senor and controller.

Is anything else required?
Is anything else recommended?
Can the Alternator Voltage Regulation circuit parts be bought as a kit? or do i need to buy the parts seperate and I have to construct in the 'proto' area by myself?

[gslender]

Ok I have decided to bite tthe bullet and get a megasquirt.

Can someone school me on whats what with these and the 2000 NB8A BP?

Is there much of a difference between the MS2 and MS3?

Massive difference. MS2 is more proven and plenty to read/learn by pople who've done it before. MS3 is the better/later hardware capable of much more than MS2, but for our cars (4cyl) there is really nothing in MS3 we need. Also, MS3 requires a more custom wiring to get the kit together as it isn't sold as an all-in-one kit like the DIYPNP. You may also struggle to find existing tunes for the MX5, but if you asked around on MiataTurbo I'm sure one of the locals would help you (if he doesn't eat you first for posting a newb question).

I'm going to go with the DIYPNP kit, It sems most/all? are using the MS2 boards. Is this right? is this going to do everything i need of it?

That is correct. Lots more sold and people done that before. You should find it easier to get help or advice from folks who've done it on your model car before.

I am looking at the following:
The Kit itself.
http://www.diyautotune.com/catalog/diyp ... p-384.html
Sequential upgrade kit.
http://www.diyautotune.com/catalog/diyp ... p-386.html
Boost Module.
http://www.diyautotune.com/catalog/pcbv ... p-160.html
Boost Solenoid.
http://www.diyautotune.com/catalog/ebc- ... p-285.html

I don't believe you need the boost modkit, but the EBC solenoid is needed. Check with DIY themselves but I believe the DIYPNP already has the needed circuits to control a boost solenoid.

With these is it worth getting some sort of wideband O2 option?
http://www.diyautotune.com/catalog/wide ... -c-23.html
For the price it seems to be only about $50 or so more to get the guage aswell as the senor and controller.

Definitely get a wide-band O2 sensor and controller. Almost impossible to tune the car without one. A gauge isn't needed, and unless you want to see the AFR whilst driving along (you should be looking at the road) skip this and buy something else (a good soldering iron).

Is anything else required?

IAT Sensor? I don't see you mention it and you'll need an air temp sensor unless you plan to keep the existing MAF/AIT sensor. The reason you don't keep it is to free the intake track from the potential restriction. Also allows you to play with your own custom intake pipe without having to work out how to include the Mazda MAF/AIT.
MAP Vacuum tube - about 3-4 metres of good quality 4mm pipe
Tools needed to assemble and time to do it properly.

Is anything else recommended?

Think about how you'll remove the MAF sensor and how you'd add the IAT sensor to the intake pipe. Good time to plan for that and think about needed joiners, bends and where it will get fresh/cool air.

Can the Alternator Voltage Regulation circuit parts be bought as a kit? or do i need to buy the parts seperate and I have to construct in the 'proto' area by myself?

It seems it needs to be built in the proto area, but some have also found old Chrysler voltage regulator circuits from junk yards and/or other donor cars to control this. I've been thinking of how to add that capability to the MS2 software, as essentially if the OEM ECU can do it, with the right spare output, I could write the software to do the same. Just not sure what the input/output conditions are and what other circuits are needed to control the alternator - maybe someone knows if it is as simple as just GNDing the alternator wire when the 12V charge it too low.

The other final option is to look at the DIY PNP2 kit for your model. Kit is assembled and has the needed voltage regulation circuitry done. A bit more upfront cost, but if you factor in your time, it probably is cheaper. Don't get the "I built it" feeling, but still a lot of DIY work to install compared to walking into a store and laying down some cash and picking it up later!

G

[wydra]

I was thinking the IAT in my head but forgot to put it in my post.
I will also be getting this:
http://www.diyautotune.com/catalog/mspn ... p-156.html

I'll check about the boost module, its only $7.50 so doesnt really matter if i get it and it is included.

I have done this sort of thing a while ago, building my own electronic projects so i have all the tools and irons at home ready to go.
I have decided I want to buy the DIY kit and make it myself, what the hell hey.

The only part i will have to realy research and look into is the Alternator Voltage Regulation circuit.
I'll ask the guys at DIYAutotune if they can supply a kit or something.

[geofiz]

The other alternative for the charging side is to run an altenator from an NA8. These are internally regulated.

I have the MS3 kit, and just need to finished the wiring loom off, once I work out the setup / wiring for the sequential injection.

[wydra]

Ok I have been in discussion with DIYautotune and am going to go for it.

The boost control parts come with the kit so don’t need to get that extra (besides the solenoid).

My plan is to get the car running with the MS as it is, make sure the car runs, fan work, A/C works, VICS works, voltage regulator works, etc.
Stage 2 will be remove the MAF and install the IAT sensor.
Stage 3 wire in the sequential injector driver and wire this into the car reconfiguring for the 460cc injectors (from what I can tell the car currently runs batch twin injector signal so I will need to wire in the other 2 injectors)
Stage 4 wire in the boost control and any last minute things.
Stage 5, get the turbo kit on, get a base turbo map on and see how it all looks.

Now to wait for the kit to arrive and get constructing.

[gslender]

Surprised the 99 models still run batch injection.... I always thought they had wiring and were running sequential from the stock ecu.

Anyway, I'm sure you'll sort it and happy to help as/if needed.

G

[timk]

The 99 models have sequential injection (the ones I have seen anyway). Are you confusing things with the wasted spark ignition perhaps?

I have made some printed PCBs for NB alternator control, they also control the alternator warning light on the dash. If you are handy with a soldering iron want me to mail one to you?

[sailaholic]

Yup na8 on was sequential.

Sent from my GT-I9100 using Tapatalk 2

[wydra]

G,
If it is sequential injection from factory that would be GREAT. Save me running extra wires and i'll get it working straight away (I bought the sequential injection kit so I'll be ready to go).
I think you might be right though.... Bottom right of the DIYPNP Jumper Configuration - http://www.diyautotune.com/diypnp/apps/ ... bp-mt.html
INJ output #1 - 4W
INJ output #2 - 4Y
INJ output #3 - 4Z
INJ output #4 - 4X
perfect!

Sab,
Thats a slick looking PCB, does it fit in the case of the MS, on top of the 'proto' area (with the sequential injection kit installed as well) or do you need to mount it in a jiffy box externally? Regardless I would love one! let me know what to do, i can paypal or DD you some $, what ever works for you

[wydra]

DIYPNP Megasquirt has arrived!
Now to get building