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Megasquirt'n'Spark-extra
What is it?
MegasquirtnSpark-extra is new
software (firmware) you can download to a
Megasquirt board to give you extra features as below. Some require
additional hardware to be built. You can turn off features you don't want
through Megatune. NOTE! This code will not run on the MS-II processor, it is for
the original HC908 CPU.
CAUTION: New users are advised to start with Megasquirt in fuel only before
using this firmware. There is a lot to learn to implement Megasquirt and there
is a lot more to learn to correctly implement fuel and spark. If you dive
straight into the deep end you might get overwhelmed.
Before downloading the code start on the
Setting up page
Features
Follow links for more info
12x12 fuel
tables
12x12 spark tables
DualTable
code
Roger Enns'
injector staging code
Rev limiter
Overboost
protection
Mappable
Air:Fuel Ratio target for use with wideband O2
Coolant temp
timing advance
Inlet temp timing retard
MAPdot accel/decel
enrichment
Anti-rev /
Traction Control feature
Over-run fuel
cut |
Ignition
control options:
. No
ignition (fuel only)
.
Distributor for even-fire 2 stroke 1,2,3,4 cyl and
even-fire 4 stroke 1,2,3,4,5,6,8,10,12,16 cyl
. Ford
EDIS
. Dual Ford EDIS (e.g. 2 EDIS4 modules on a V8) TEST
. Dodge
Neon crank decoder TEST
. Ford TFI
. GM 7
pin HEI
.
Toothed wheel decoder
. Dual
wheel decoder/2nd trigger |
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Hardware changes needed for:
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Switchable tables
Boost control
TEST
Water
injection control
Dual EGO
sensor support
Shift
Lights
Launch Control
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Outputs 1, 2,
3 and 4
Knock sensor
input
PWM idle
for use with variable valves TEST
Nitrous
control (min rpm, new timing map or fixed retard)
EGT logging
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See
the setup page
for directions on how to test drive this software.
No warranty expressed or implied. Use at your
own risk.
Some of this information has been taken from the
official MS'n'S site.
These are the main features:
- Water Injection Control- including
pulsed output at same rate as Inj#bank2
- 2 x O2 sensor support- one for each
bank of injectors
- 12x12 spark tables- 2 of them that can
be switched over on the run.
- 12x12 fuel tables.
- NOS control. Including adding the
extra fuel if fuel system up to it.
- R Enns Staging Injection System.
- D Edge's Target AFR system.
- Open loop mode on any TPS setting or
MAP setting.
- Over Boost protection - Fuel Cut,
Spark Cut or both (Spark cut not on Edis)
- Rev Limiter - Fuel Cut, Spark Cut or
Both (Spark cut not on Edis)
- Launch control - Including a variable
hard cut rpm - Fuel Cut, spark cut or both (Spark cut not on Edis)
- Over run fuel cut
- Knock System - Retards ignition when
knock detected, all retard degrees can be set. And advance steps. Also has max
rpm and MAP for use with Saab system.
- IAT and CLT related ignition retard/advance
- Fielding's Idle PWM for 2 wired idle
valves.
- Erics Boost control - not tested yet.
- Shift light outputs.
- Outputs 1 and 2 can be inverted and
they can be set to be on in a window, e.g. between 2000-5000 rpm.
- Neon Crank support.
- Edis
- MSnS
- MS - fuel only.
- Limits to barometric correction,
incase you get a reset during engine run you can set the upper and lower
limits of barometric correction KPa.
- After start enrichment in seconds or ignition
pulses
- Ego correction Steps in seconds or
ignition pulses.
- Accel/ Decel timer in seconds or
cycles.
- Accel / Decel in MAP dot or TPSdot.
Also can have MAPdot cut out accel when in boost.
- Monitor and Log EGT and fuel pressure.
MegaSquirt FAQ,
MegaManual,
MegaSquirt-II
I will add stuff to this
page as I get it including specific info on the FIRE engine install.
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