Genset .. hmmm Carbs , cold start ..

propane is cheap , easy to valve , my carb

to replace the OEM , is pc of copper tube , and a steel frame

around it for a practical way to pull the copper tube
carb

against the head , Copper because i can easily solder the
injection

mechanism into side of tube .. plunger enters the open end

of tube , as a throttle , it rides on a DIY ball screw
mechanism

so you twist a crank , and the throttle closes titely ,
another air entrance

thru a tiny hole , is for idling ,

Injectors are DIY , using sewing needles , into shrunk down 1/8
inch

copper fuel tubes , but from opposite side of big copper tube ,

are poppet valves that can cover the needle valves exit , just
in case

there is problems , or to control fuel flow in a
digital manner ,

The mcu can select any of 8 injectors to control fuel
flow ,

this takes a load off the method of moving needles in and out

to control flow , Sounds complicated ,

yet its fault tolerance , that i need , I dont want
complicated

fuel maps , i will have simple cheap sensors and the mcu
( Nintendo DSL )

will not need to be precise , to get good fuel economy .

suppose a needle leaks , and ruins idle mixture ....

mcu selects a needle that dont leak , by closing off the
leaking needle

mcu can also up or down , fuel psi to improve a fault
condition ,

yet average fuel pressure is 3 PSI ,

All very cheap and easy to build , sensors are simple crank
mnted

reluctance type TACH sendors , DIY in minutes , use old 8
penny nails

and old walwarts for the silicon steel , just dont use too much
steel , for

the rpm , fine magnet wire will up the voltage , ..

Home Depot CFL curly lights have high voltage NPN transistors
to

use as temperature measuring semiconductors , just bias the B E

about .005 mils and read the voltage across the B E , it
will

be a very accurate 0.0022 volts / C , now put this
transistor transducer

inside the engine somewhere , to tell mcu , engine temp ,

Buy a LM34DZ or sim to SET this DIY thermometer .

I was amased at how close it tracks , I did this 20 years ago
on

a Honda car , i put an LM34DZ in place of the cheap transistor
junc ,

it tracked perfectly ,,,

back to TACH , RPM , any IC Chip that can dual slope ,
fixed

de entigrate , , the circuit integrates the crank sensor ....

at idle , integrator gets a well shaped pulse , integrates
it , yet

the fixed deintegrate dischages the energy just integrated , to
produce

little volt , out , but at high RPM , the pulses are arriving so
fast they

dominate the integrator , to raise its DC output , aka Dual
slope Integration

Or , just buy a LM2907 from Jamemco for $1. 09 .. Its the
famous TACH chip .

But youll need many poles aka magnets on the crank , maybe 6 ,

so that the 2907 will give accurate DC out at engine
idle , no problem

at 7000 rpm , the LM2907 easily does this engine speed ,

i have many low cost Japan gensets , and ill also be carb-
ing

B18b Accura engines , in airplanes , The B18B and B18C are

strong buillt racing engines , yet you can start a project ,,
buying them

at $800 ea from Canada ! Its an opportunity !

My project is a 1500 HP ( B18b times 6 ) pusher prop , bi
plane

with folding wings , it fits into a hanger HOLE 9.5 feet
tall by 9 foot

wide . Upper wing moves , inflight , forward for weight
and balance ,

for take off and landing ,

Its floats fold down , then away and up , to allow landing gear

to deploy , Turbo'd engines have variable intake cam timing
to

nix need for waste gate , Thanks to Mr Atkison "cycle" ,
allows

the turbo to level out the unwanted variations in induction
aka

breathing , especially at high altitude , where the intake cam is
full advanced

to aide in compressing the thin air , yet at low altitude
and economy

cruise , the compression is very low ( cam is retarded up to 60
degrees )

, just high enuf to make the Turbo work at max effeciency .

ignition is a magneto on crank , producing high voltage to a
transistor

coil , again ,,, Home Depot curly CFl lites , give the
13003 transistors

to drive the home made ign coil , 12vdc systems are bad , you
can always

step down the system voltage from magneto to charge
batteries ,

But for lack of transistors , our cars use 15 vdc
alternators ,


i dont know how to use

yet i created it , its closed , invite only ,

send email address , ill TRY to figure out how to add it ,

any help appreciated ... It wont be boring ,

everything from computers , Linux , Forth , WXP , to
Nintendo DSL controllers to , cars trucks , sand buggies
with motorcycles , motorized bike engines ,
MIG TIG welder power supplies using Flourescent bulbs ,
DIY Plasma cutters ,
Hydraulic pump powered air compressors , they're more effecient ,