Type 4 megasquirt Options

[r_towle]

I am looking for a roll call with details on any type 4 EFI people.

hope we can keep this thread on track.

Please tell us

What size motor
What EFI brain are you using
What throttle body setup do you have
What size injectors are you using

ignition?
And any data logging?

[Michelj13]

What size motor....2270
What EFI brain are you using....Megasquirt v3.0 pcb w/MS2 daughter board, running msextra
What throttle body setup do you have... stock 1.8 runners with 944 TB welded to intake plenum
What size injectors are you using... 34 lb
ignition? ...36-1 wheel VR sensor, LS2 coils
And any data logging? Tuner Studio logger

[edwin]

1800 (low comp bus pistons)
Haltech sprint 500 ecu
Dual stripped webber 38idf on modified manifolds with low mount injectors
250cc/min injectors
Ignition with ls1 coils
Position sense via modified Mitsubishi dizzy with 4+1 trigger wheel

[toon1]

1.7
MS1/Ms&s extra code
Stock throttle body
36-1 trigger wheel with Ford coil.
21lb/ hr injectors from a Ford probe running 43 psi

[aircooledtechguy]

The injection I'm currently running on my 2056 below is actually destined for a 2316cc race motor (That's why I have oversized 45mm ITBs on a 2056. . .)

2056cc
MS3X
45mm ITBs
35# PICO injectors 35psi
36-1 wheel w/ Hall sensor
LS2 COP sequential
Cam sensor for full sequential fuel
The MS3X ECU has an SD card input for direct datalogging off the ECU. I mounted a button and LED on my gauge console for starting and stopping datalogging. I then use Tuner Studio to view and make changes.

[crash914]

2.7liter, MSII ver 2.2, twin throttle bodies, 40 or bigger, I don't remember, right now, fuel only, but have wheel for ignition and sequential...data log with my phone and shadowtuner with external gps sensor.

reg fuel around 14.4 with 2 squirts alternating...injectors are 3.77 g/s flow rate.

[stugray]

Two brothers run megasquirts in our vintage group.

They use 4X stock Throttle bodies as ITBs and run E85.

I can get more details in two weeks when I see them at the track.

Brant might have more info.

[r_towle]

The injection I'm currently running on my 2056 below is actually destined for a 2316cc race motor (That's why I have oversized 45mm ITBs on a 2056. . .)

2056cc
MS3X
45mm ITBs
35# PICO injectors 35psi
36-1 wheel w/ Hall sensor
LS2 COP sequential
Cam sensor for full sequential fuel
The MS3X ECU has an SD card input for direct datalogging off the ECU. I mounted a button and LED on my gauge console for starting and stopping datalogging. I then use Tuner Studio to view and make changes.

this is close to what I want.

Please tell me more about the data logging.
Do you put the SD card in, press the button and it starts data logging....
Then take it out, put it in the PC and read it? Then tune it from there, and do it all over again?

What are you doing for ignition?

And finally....did you build the ECU or do you buy these Megasquirt ECU units all built?

Rich

[r_towle]

2.7liter, MSII ver 2.2, twin throttle bodies, 40 or bigger, I don't remember, right now, fuel only, but have wheel for ignition and sequential...data log with my phone and shadowtuner with external gps sensor.

reg fuel around 14.4 with 2 squirts alternating...injectors are 3.77 g/s flow rate.

how do you plug your phone into the unit and do data logging?
What data are you logging....cause this would be ideal to just use a phone or tablet....

Rich

[crash914]

Rich, download shadowtuner. It will log full megasquirt data. I use rs232 Bluetooth transmitter to connect to shadowtuner running on my phone. I can do full tuning and data logging. I usually log, rpm, throttle position, rpm, speed, acceleration, ve, map, ct, iat, g's, lat and long. Etc.

[r_towle]

Rich, download shadowtuner. It will log full megasquirt data. I use rs232 Bluetooth transmitter to connect to shadowtuner running on my phone. I can do full tuning and data logging. I usually log, rpm, throttle position, rpm, speed, acceleration, ve, map, ct, iat, g's, lat and long. Etc.

Sounds like a perfect crack solution for me...

I will see if I can find an old iPad mini and mount it..

[aircooledtechguy]

The injection I'm currently running on my 2056 below is actually destined for a 2316cc race motor (That's why I have oversized 45mm ITBs on a 2056. . .)

2056cc
MS3X
45mm ITBs
35# PICO injectors 35psi
36-1 wheel w/ Hall sensor
LS2 COP sequential
Cam sensor for full sequential fuel
The MS3X ECU has an SD card input for direct datalogging off the ECU. I mounted a button and LED on my gauge console for starting and stopping datalogging. I then use Tuner Studio to view and make changes.

this is close to what I want.

Please tell me more about the data logging.
Do you put the SD card in, press the button and it starts data logging....
Then take it out, put it in the PC and read it? Then tune it from there, and do it all over again?

What are you doing for ignition?

And finally....did you build the ECU or do you buy these Megasquirt ECU units all built?

Rich

This is the ECU I have.

You can see the SD card slot in it. I use it for logging when I don't have my computer handy or when I can't have any device in the car (like racing). I wired a simple momentary button with an LED to my gauge console so I can activate the logging and deactivate it from the drivers seat on the fly. I think I have mine to record up to 10 minutes at a time when activated. Then I can just pop the SD card into my computer when convenient. This ECU also uses a USB plug on the ECU so you don't need to mess with serial plugs and adapters.

I'm planning to upgrade to the Bluetooth transmitter like Crash914 mentioned so I can just go cordless to my laptop.

I'm using this cam sync to run sequential injection and on the bottom of that page, I also have the type4 36-1 set-up which uses a hall sensor. I also use his LS2 coils, ITBs, harness and CLT sensor, Tangerine cable linkage. It all makes for a flawless package.

[Michelj13]

I'm using this cam sync to run sequential injection

I want to get this device soon, I need to spend a little more time with idle tuning first. Only have a couple hundred miles on mine, it's amazing how well the MS runs. Hope I can figure out how to do sequential with v3.0
board!

[falcor75]

Stock 2.0 (will be 2270 or 2316 later)
Bosch 350cc/min at 3 bar
40 mm itb's on empi intakes
Maxxecu
Ls2 coils
36-1 with hall sensor and cam sensor for sequential injection

not running yet tho, still rebuilding the car but getting closer (IMG:style_emoticons/default/smile.gif)

[jd74914]

And finally....did you build the ECU or do you buy these Megasquirt ECU units all built?

Rich, while I haven't finished my own TIV conversion I will say that I've found it invaluable on other EFI conversion to start with a known good unit. Knowing your car isn't starting because of our programming, wiring, etc. rather than a hardware problem in the unit you assembled is really nice. (IMG:style_emoticons/default/smile.gif)

[JamesM]

Do you want to know what I run currently or the various systems/revisions I have gone through? Very early adopter, I have been running Megasquirt on my 914s since early 2003, back when MS1 v2.2 was the only option. I was not the first install, but I believe I may have been the second, and also may be in the running for the person to have been running it continually on a 914 for the longest period of time. To my knowledge I am the only only running with a stock d-jet wiring harness.

I have ran many various configurations over the years, the great thing about MS is once you have it up and running its really easy to experiment and try new things. thats where most of the fun is for me.

First deployment:
What size motor: Stock 2.0L with hydraulic lifters/cam
What EFI brain are you using: MS1 (stock firmware) v2.2 board + relay board
What throttle body setup do you have: Stock 2.0 intake
What size injectors are you using: Stock 2.0 injectors (though for a while i ran stock 1.7 injectors which are a much better size for that motor)
ignition? Fuel only/dizzy triggered (this was back before ignition was an option)
And any data logging? Always while tuning, you have to have data.


Over the years on that system I removed the relay board from the equation, moved to a fully custom main board (unsupported, based mainly on the 2.2 board circuits) with custom injection circuitry to allow plug and play use with a stock d-jet harness. Ditched the stock firmware, moved to MSnS Extra and added ignition once it became available (still using the 4 point Pertronix trigger in the dizzy, triggering a Malloy 6AL ignition module. Eventually moved to an MS2 chip on the same setup.

I ran that motor up until last year when I replaced it with a warm 2056 with 1.8 heads.


Currently
What size motor: 2056
What EFI brain are you using: MS2 (MS2/Extra firmware) on fully custom board (based on the 2.2 circuits)
What throttle body setup do you have: Vanagon 2.1 (50mm) on a modded 1.8 plenum.
What size injectors are you using: Stock 2.0
Ignition? Yes, pertronix/dizzy triggered


Upcoming - I have a 36-1 trigger wheel from Mario(thedubshop.net) installed but have not added the circuitry on my board to use it yet. Along with that circuit change I am going to be adding a 2nd MAP sensor to the board for those days i feel like climbing the mountain passes around here. Also going to be playing with various late Vanagon(2.1) injectors as flow rates are preferable to the stock 914 injectors, they can be had new for dirt cheap and possibly with better spray patterns, and I have also heard rumors they are high impedance so i can ditch the inline resistors.

And finally....did you build the ECU or do you buy these Megasquirt ECU units all built? The very first 2.2 board i ran I bought already assembled off of ebay (and then had to fix some of the ignition circuit customization they had on it) Every board I have ran since then I have built myself. The trick is to buy a nice fully temp controlled soldering station and various tip sizes/shapes (dont attempt this with any normal radioshack soldering iron)

While the newer boards and MS3 have a ton of cool features/functionality to me most of it just added cost and complexity on a 914. I have not come across anything that i would want to do on a 914 that i have not been able to with the 2.2 based board though I do think the chip upgrade to MS2 is worthwhile, especially if you are going to control ignition.

[crash914]

The msII ver 3.0 and 3.57 boards are nice as they add the vr conditioning circuit and ignition output (for wasted spark) I am adding both manually to my ver 2.2 board.

[VaccaRabite]

Rich,
I have a MS 3.57 board and harness stub and jim stim I bought from Jake a while back but never used. I'd be willing to sell it to you for what I paid for it if you have not bought something already.

Zach

[FourBlades]

Some pictures of my EFI setup. Mine uses electromotive for the ECU but most of the
stuff is the same as you would use for megasquirt. I think the electromotive uses a
different number of teeth on its trigger wheel.

Here is what the CB Performance throttle bodies look like with their fuel rails,
injectors, and the metal tab that holds the fuel rails to the throttle body.

The tube coming out from the between the manifolds is an air line that goes to the
manifold pressure sensor in the rear trunk. The throttle bodies are drilled and
tapped for this air line and the lines from both throttle bodies join together before
going to the manifold pressure sensor. These long air lines help smooth the air
pressure pulses at low RPM but they still fluctuate a lot below something like 2500
RPM. Below 2500 RPM (or so) the electromotive relies on the throttle position
sensor mounted to the back of one throttle body for its load input. It can blend
between the two to smooth things out at low RPM. Not sure what megasquirt does
here but I bet it is something similar.



Here is a close up of the metal tab holding the fuel rail to the throttle body. I had a
hard time getting pictures of this stuff with the engine installed. (IMG:style_emoticons/default/smile.gif)



Another shot of the tab.



A shot of the master side of the tangerine throttle pulley system. Edit: I had this
backwards I realized: At the top of the wheel is the throttle cable attached to the
gas pedal. At the bottom is the cable to the slave wheel on the other throttle body.



Hope this helps.

John

[r_towle]

Thanx that helps alot