BTW, after too many years of being to busy to work on my Renesis /
Glass Goose project, it looks like I may be slowing down enough to
restart. Luckily I have been flying (Skymaster) in the interim.
Lots of catching up to do!
You may remember that I have a Bruce Turrentine Renesis 6-port and
Tracy's EC-2 and redrive. I see that the EC-2 only supports 4
injectors, while I have 6 altogether. Do you know if anyone with a
similar configuration simply did not use (blocked off) the two
engine block injector ports (red injectors)? Or it necessary to
use all 6 injectors?
You may also recall that I built a small intake with throttle body
based on the original intake manifold, so I don't have the long
runners. I realize this will produce less HP, but I only need
about 180-190 -- which might make the center injectors less
important? ( I can also re-do the intake relatively easily if
needed.)
Thanks,
Scott Gettings
Perhaps some one will read this and respond. In theory you do not
need them with Tracy's EFI. However tuning with Tracy's is always a
pain in the butt :-)
It is pretty easy to do your own EFI with a Maximite. The easiest
hardware control computer in the world to program.
Not a very steep learning curve. I can help with out a lot of time
or trouble and you would be doing all 1000 people on here a big
favour as it would be open source. You could use all six injectors
for smother running.
This is basic'ly all there is to the program. Pardon the pun. A '
before the text is a comment and does not enter into the
functioning.
'SETPIN pin, cfg [,target] 'Will configure the external I/O pin
according to cfg : 'The original Maximite has 20 I/O pins
numbered 1 to 20, the Color Maximite adds 'another 20 I/O pins on
the Arduino connector. These are labeled D0 to D13 and A0 'to A5.
'0 Not configured or inactive '1 Analog input (pins 1 to 10, A0 to
A5) '2 Digital input (all pins and 5V tolerant on pins 11 to 20) '3
Frequency input '4 Period input '(pins 11 to 14) '(pins 11 to 14)
'5 Counting input '(pins 11 to 14) '6 Interrupt on low to high
input change (pins 1 to 20, D0 to D8) for target '7 Interrupt on
high to low input change (pins 1 to 20, D0 to D8) for target '8
Digital output '(all pins) '9 Open collector digital output to 5V
(pins 11 to 20, D0 to D13) In this mode the 'function PIN() will
also return the output value. 'The starting line number of the
interrupt routine is specified in the third 'parameter ' target .
This mode also configures the pin As a digital input so the value
of the 'pin 'can always be retrieved using the function PIN(). 'See
also IRETURN to return from the interrupt. 'See also: 'IRETURN PORT
P
Mode 1 'Mode 4
For n = 11 To 20 SetPin n, 9 'set pins 11 to 20 as open col 5 v
output Next n
Open "data.txt" For output As #1 'data file
SetPin 8, 6, 10 'pin 8 low to high int gosub line 10 SetPin 10, 1
'manifold press on pin 10 SetTick 1000,20
BakGnd: manpre = Pin(10) 'A to D on pin 10. may need to be scaled
manpre2 = manpre * 10 'Print manpre manpre3 = Int(manpre) PWM
20,manpre3,manpre3 'pulse width on primary injectors
'''''''''''''''''''''''and secondary 20 times a second GoTo
BakGnd
10 RPM: RPM = RPM + 1 IReturn
20 RPMRoutine: RPM=RPM*30 Cls Locate 30,30 Print "RPM = ";RPM RPM =
0 Locate 30,60 'col 30 line 40 Print "Manifold pressure = ";manpre
'EFIS function IReturn
Paul Lamar
I will definitely have a lot of catching up to do! So the Maximite
will handle both the EFI and ignition coils? The programming is
beyond me, but my brother might also help. I assume I could test the
Maximite on my RX-8?
I will look for a source unless you have one handy.
Scott Gettings.
CircuitGizmo sells them in the states.
http://circuitgizmos.com/
Version 2 is now out with higher performance.
The web site does not do it justice. Some times I think CG doesn’t
understand
just exactly what it does. It is like a complete DOS computer running QB
with a
solid state 64Gig hard disk.
"The CGMMSTICK and CGCOLORMAX have the Maximite BASIC (MMBasic)
interpreter programmed into the PIC32 microcontroller. "
Not only is the BASIC interpreter programmed into the PIC32 microcontroller
the programming editor and a disk operating system is also built in to
the microcontroller.
The Maxm+doc jpg shows a Maximite set up next to another computer running
the PIC BASIC pdf doc for rapid access to any BASIC command info. This
is a major
breakthrough in the ease of programming micro controllers.
For $57 it is an extreme bargain.
BTW
Harbor Freight sells a low cost one cylinder piston engine.
Perfect for getting your feet wet in EFI.
Once you get that to work expanding the number of injectors
is a piece of cake.
Paul Lamar
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