VG33E MAF Location

[wiseguy]

Hello everyone,

Does anyone here know by any chance if the location of the MAF sensor plays any role on engine performance (not as in power gain or loss.. as in will the engine run properly or not) i made my own 3" cold air intake out of ABS piping since there are no CAIs sold for the VG33s the only problem i am running into is the MAF sensor location along the intake tubing, i would like to move it a little closer to the throttle to shorten the travel distance to the throttle. Right now it curves twice, once at 90 and once at 45 degrees and total of 4 feet travel just within the engine bay, what i would like is the planned 1.5' total travel within engine bay and no curves at all.. to some it may not make sense but the more travel within this hot area and the more curves the hotter the air will get by the time it hits the throttle, the less curves and shorter distance, the faster and cooler it will enter the manifold.

Also would like to know which of the vacuum hoses going to the intake may be eliminated by using a breather (minus the smallest hose up near the fender.. I've been driving for a year with it disconnected now and no problems lol)

Thanks for the input.

[mbernardo]

Does anyone here know by any chance if the location of the MAF sensor plays any role on engine performance (not as in power gain or loss.. as in will the engine run properly or not)

I'm no expert but the MAF sensor needs to be in tune with the ECU so that the fuel/air mixture is correct. I did a quick google on relocating the MAF and it looks like the preference is to move it closer to the throttle body. However, you should consider the venturi effects of your new pipe as it will affect the temperature, mass, and velocity of the air coming into the TB. The only way to tell if there really is a difference in location is to run a test first by measuring the temperature and velocity in different locations of the new tube (using an OBDII scanner?). Compare these measurements to the stock location with the stock tube at different RPMs. You're probably going to want to keep it as close as possible to the same readings as stock because I don't know what the long term effects would be if it was any different.

I'm not sure if the MAF sensor is programmed to a pipe of a specific width and length. So if it is, and your new pipe has a different length and width, you might get a false reading because the measure of volume of air will not be accurate.

[wiseguy]

Sweet, thanks.. Going to try an research it a bit before I do anything and try an see if I can get hold of a more detailed scanner than mine, anymore thoughts would be appreciated.

Again thanks for the input.