If your rotary is over heating on take off and you need to get back
on the ground right now consider using one of these small high
pressure pumps to spray water on the rad.
For the time to climb air plane I bought two. One for the rad spray
bar and one for water injection into the intake manifold.
Easier than just using one and a selector valve.
Paul Lamar
I wish I could use one of these for the rear engine oil cooler on my
C337 for those hot days with long holds prior to takeoff! A few
times I have had to shut the rear engine down and taxi back to
prevent temps redline. I doubt my mechanic/IA would agree this would
be a "minor modification/repair".
Scott Gettings Sent from my iPad using Voice. Apologize for typos
Take it off when you get an annual :-)
What a coincidence. Peter Garrison contacted me with his oil
overheating on his Melmouth Continental.
Make sure the oil cooler does not "see" an exhaust pipe.
Paul Lamar
As usual, you're right. The Oil cooler looks right at the exhaust
header and is 8 inches away. I'm sure I can get my mechanic to agree
to a heat shield as a minor modification.
Thanks very much!
Scott Gettings
Use .040" or .050" thick SS about 1/4 inch away from the pipe so the
oil cooler cannot "see" the exhaust pipe. SS has low heat transfer
characteristics.
Paul Lamar
Willdo, thanks Paul. Will send pix when done.
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
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