weber 40dcoe jetting
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weber 40dcoe jetting
ok now that i fell really retarded for asking where the jets are.... since i pulled the little wingnut off the top and noticed they were right there in front of me lol. i have a question as to jet changes. the car runs fine and doesnt stumble or anything so i think i lucked out with getting this carb. it came from up north and im at sea level so im thinking i still need to richen it up some. the plugs are a little on the white side also. im running a 140 fuel jet and i wrote down the wrong number for the air jet so i dont have it at the moment. my question is if i want to make it a little richer than it is can i just go to a 145, 150, or 155 fuel jet and leave the air correction jet alone? or should i change it as well? and which way should i go with it if i change it? im trying to gain a little power if i can and dont care about fuel economy. wouldnt mind being able to pop some fireballs also
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Air corrector jets are mostly for tuning the air-fuel curve as RPM rises; the higher the RPM, the larger the affect the air correctors will have. So if you're getting real rich at the top-end, for instance, that's when you'd want a bigger AC jet. In other words, without an air-fuel ratio gauge, it's really anyone's guess what you need.
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well question then. does an air fuel gauge hook up somewhat like an egt gauge on my diesel truck? drill and tap a hole in the exhaust. screw the sensor in and then hook it up? never installed one but it seems like it might be something to look into
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Yeah, pretty much. If you can afford it, a "wideband" style air-fuel gauge is really the way to go. The Innovate LC-1 is cheap and will do what you need. The AEM UEGO is also a popular choice.
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