I am looking at a Jet Performance Mass Air Flow Sensor. Claims a higher air flow to the throttle body. Anyone have any experience with this + or- input.

 

Don't. Buy OEM only

 

Why not a higher flowing unit. More air should equate to more power and better mileage.

 

want to buy a bridge in New York?

 

If it made it run better & better mileage, chevy would have done it long ago

 

[QUOTE=Rednucleus;500636]If it made it run better & better mileage, chevy would have done it long ago[/QUOTECan't say I agree with that statement as the after market industry has developed many great performance parts over the years. After all the internal combustion engine is nothing more than a pump... To put it simply air in air out. Increased induction and exhaust within reason should and will give improved power and efficency...imho.

Regards

 

how would it promote more air flow? Its plugging a sensor into a stock resonator tube and throttle body. It would require changing the throttle body bore size and flow characteristics of the resonator tube to get more air in. If you haven't done that, or added boost, getting a sensor that can read higher flow is pointless.

 

I guess I forgot to mention that I'm doing those mods as well. Like I said "air in ,air out so why would I want to restrict the air flow with a stock sensor???

 

Please provide references for these claims - I was unable to find any technical information on Jet’s website regarding how their MAF works/increases air flow. The lack of specific details alone is reason to question their claims.

While it’s true that an engine is essentially an air pump, and that you can increase efficiency and HP by getting more air into the engine, simply providing a larger opening to the throttle body (which, based on what I’ve found so far, is all this MAF is supposedly doing) on its own isn’t enough, for 2 primary reasons:

1) The throttle plates still restrict the volume of air that can get into the intake at any given time. The intake valves further restrict the amount of air that can get into the cylinders. Simply having an abundance of additional air at the throttle body doesn’t mean that extra air will be pulled into the engine. Think of it in the same terms as the fuel delivery system - just because the tank is full doesn’t mean the fuel pump will deliver more fuel to the injectors.

2) There is a mechanical limit to how much air an engine can move (i.e. displacement). The mathematical displacement of your engine is 5.7 liters and is based on the total volume of all the cylinders combined when the piston is at full stroke.

However, the actual amount it can move is dependent on what’s called “swept volume,” or the amount of air that can be moved with the engine running. There simply isn’t enough time for the cylinder to move its full volume of air because the valves are opening/closing too fast and the vacuum generated can’t pull enough air in the time it has to do so- it’s just one of the disadvantages of a naturally aspirated engine.

This doesn’t mean a larger opening at the intake won’t provide some additional air and possibly increase efficiency/HP, but any gains would be minimal and/or dependent on the overall condition of the engine, as well as your driving habits.

 

Exactly. In other words, the throttle body isn't the bottleneck to airflow (or even to horsepower). You would have to re-engineer EVERYTHING.
It's like changing one piece of pipe in your home and expecting more water pressure.
And yes, auto manufacturers are constantly squeezed by the government for efficiency numbers. If GM could improve it with this one part, they would have done it a long time ago.
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But by all means, go ahead and dyno test your truck now and after you install your "jet performance" and show us the huge gains.