I'm about to make a couple of research, not scientific, more or less try and error. First, today, the job was to relocate the MAF sensor and nothing else. You see an original Fomoco part which belongs to a Ford Focus with the same Sigma 1.6 ti engine. I bought this part a year ago because I wanted to replace the MAF sensor. That was a funny experience. The original Ford MAF sensor costs about 220€. The shown rubber/plastic hose ensemble costs ...at least last year ...about 80€....BUT!! the very same MAF sensor was included:, screwed in:) A nice example of modern high tech logistics and calculation...
This is the very first and very unprofessional approach. Here is the experimental stage of today.
During the next days I will replace the cardboard roll by an aluminium tube of appropriate diameter.
For now I can say, the engine gives a much better response to the throttle, and it seems to run leaner. The performance is better at the mid band in higher gears (when she is faster) but I have lost torque at the low rev band. This may be caused by turbulances and connection issues of the to big diameter cardboard roll.
The benefit of the set up is, that I can try different intake solutions instead of the given Ford airbox. Because now the job of the MAF sensor is done at another location. I can fit e.g. an open air filter on a long length tube, a short length tube etc. I must say that the often reported positive experiences using an open airfilter with a short tube length could be more the result of the relocated sensor than of the open air filter by itself. I will keep you updated.
