Air intake duct relocation

[97BlackAckCL]

https://www.youtube.com/watch?v=wv7-BbTmueo

here's what i did w/ my scoopy bernoulli thingie

trd air flow accelerator

This would probably be the cheapest option to get rid of the stock half cone piece. Not sure it would help the amount of dust/debris though. You'd really want a snorkel for that

 

[BackOff]

This is what i was talking about, could not remember who made it before.

Ram Air Scoop - Volant Performance

Is a couple threads over on TW, peeps seem to like it.

 

[Jetboy]

Thanks for the information. The throttle body interacts with air but has no idea what it is.. it receives several electric signals in the form of voltages and resistances from multiple sensors. The MAF interprets the physical properties of the air. Volume, temperature, density.. then the throttle body operates accordingly. The brains are engineered specifically for the way the truck was factory built with set parameters. These are strict parameters and slight variations in the signal make big differences.

The location of the MAF downstream of the air filter results in the air flow being normalized by the filter. The snorkel will make no measurable difference in the MAF readings or the performance. Nor will anything you do to that intake area on the dirty side of the filter make a difference if it doesn't restrict it significantly or move the intake into the engine bay where the air temps would be higher.

A set of baffles like the OEM fender liner to deflect mud spray away from the intake port in the fender would be another option. Toyota designed it the way it was for a reason.

 

[Jakeepoo3]

This is what i was talking about, could not remember who made it before.

Ram Air Scoop - Volant Performance

Is a couple threads over on TW, peeps seem to like it.

That's cool! I jacked my hood up in the forest so maybe I'll get the scoop hood although I like the flat one. Not much mud seems to make it in that area hmm fluid dynamics is more complicated than most people think.

 

[Bmnorm2]

You are way over thinking this. First, the flow post filter will be effectively unchanged in terms of laminar/turbulent flow. Second, this is air, not water or more viscous fluid, Adding a couple feet and turns to the intake piping is going to change your pressure drop by like 0.01 psi... Third, the MAF sensor is just that, a sensor, and is capable of accurately measuring a wide range of flow @ varying temp, pressure, humidity, etc. Lastly, the ECU which takes the MAF voltage signal and numerable other variables to determine fueling is capable of operating in both open and closed loop and has short and long trims and will adapt ignition timing, cam advance, and fueling.

I've tuned a bunch of K20Z3's and am anxiously awaiting the capability for 20+ 4runners, but this is not a change that would concern me in the slightest. Pull the battery long enough to wipe the short trims, plug it back in and put it through it's paces.