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Mazda Engine General \  Question

Question

Mazda Engine General Mazda Engine Mazda Tech
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blackrider88   +1y
Is it possible to ajust your carb so it will use more gas, like if you where putting a supercharger or a turbo on and u use a carb hat to connect your blower to the carb. If you dont ajust your carb then i would think the truck would run too lean. any ideas?
nytrdr24   +1y
yeah, there is a fuel mixture screw, and also an idle mixture screw.
set the mixture screw inbetween where it wants to kill the motor (screw in & screw out) there will only be @ 1 1/2 turns inbetween in and out of the screw.
then with a slight load on the engine (run the a/c) set the idle mixture so that it idles between 600-900rpm with the choke disengaged. you want the idle mixture right, then if you are adding say a turbo/supercharger you could adjust the fuel mixture screw to feed more fuel to prevent the lean condition.
speedster93b   +1y
that's why fuel injection is supreme!! PCM automatically senses more air, and increases injector pulse width to a point.
nytrdr24   +1y
yeah, if your force feeding your motor you would be better off with
f.i than a carb. it's a lot easier to adjust, and tune, not to mention a
lot more accurate. but for non-force fed motors carbs are usually
the way to go as far as $$$ wise.
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