Hi folks - I need input on my t-burner tuning. As a rule, when they go from outside the forge to inside, do they require more or less fuel?
The reason I ask, is that I initially put a .024 mig tip in that had been shortened and tapered, and using the prescribed dimensions for a 3/4" t-burner, it was way lean, as I could only get it to run well if choking the intakes with my fingers. So, I tried the same size .024 tip that wasn't cut down, and with it closer to the mixing tube it indeed didn't suck as much air, and the mix looks to be very good out of the forge with the 1" to 3/4" reducer on the end of the mixing tube.
So, shortening the mig tip or lengthening it fine tunes the amount of air which is introduced. Would it be safe to assume that if you had a mig tip length that wasn't optimal (say, a bit too long, or too close to the mixing tube), if the orifice was small enough the final mix would be correct, and combustion would be complete?
The forge size is going to be too large for a single 3/4" burner, but too small for two burners running wide open, so I was hoping to tune for efficient combustion using smaller jets.
In other words, if using smaller jets but having them placed far enough towards the 3/4" port of the T would allow for efficient and complete burning, or should I go for larger jets placed closer towards the 1/2 way point in the T-fitting, and just turn down the gas.
Insight is appreciated!
Jeff