Aftermarket MAF sampling tubes
OK, i have a range of MAF sampling tubes I need to test on my car. The different tubes are calibrated for different sized injectors but I do not know which one is for which. Theory at the moment suggests i have the wrong sampling tube for my *insert Raynier Wolfcastle voice* puny 19 pound injectors.
Can anyone enlighten me as to the theory of the sampling tubes? I understand how the MAF/hotwire/sampling tube works but would like people's thoughts on:
If a larger sampling tube will cause the engine to run richer? or vice versa?
I'm thinking - larger sampling tube, seeing more air for any given mass of air flowing into the engine and therefore supplying more fuel. Smaller tube - seeing less air for any given mass of air flowing into the engine and therefore supplying less fuel.
1995 EF Futura: 4.9L V8 w/ Powerdyne Supercharger @ 7-8psi. Water Injection @ 3psi and above. Vortech Rising Rate FMU. 73mm C&L MAF. Shift Kit, VSS override, TCC override. Blue dash. Custom blue courtesy lights. Switched A/F meter, boost/vac and oil psi gauges. 6.5" TV, CarPC w/1500+ MP3, DVD and porn, precious porn