evilstevie

Cam is the same apparently. Intake, exhaust, tune are the only differences between LT1 and L86. Right. But it's not going to suck in more air than it's capably of using just because the air is there. Obviously a 1" intake tube wouldn't flow nearly enough air. Conversely, if "more air" was always the answer, all manufacturers would have a giant 3 foot diameter orifice at the front of all of their intakes, with a screen on the front to keep out birds. And those BS K+N demos claiming "3x more air flow!" would have really yeilded their advertised +30 hp on every single car ever made instead of jack squat. Typically, CAI's without a tune make minimal hp gains. This has been proven time and time again with various dyno tests over the years. Throw a tune on and they typically add a handful of hp. Apparently one out of this bunch was able to add 25 hp without a tune. That is certainly not typical. I missed the point about the vacuum mentioned earlier so I'll have to go see if a logical explanation was included.

2) This is an NA motor, so it pulls in air via vacuum as a result of the combustion cycle. Increasing the amount of available air, even by a tremendous amount, isn't going to change the amount of air that's pulled into the combustion chamber, unless this air is being forced in via FI. CAI's are not superchargers. Is the stock air box so tremendously restricted that it's not actually getting the air that it can use? Seems unlikely to me but anything is possible.

-We have 1 dyno from a company that sells CAI's. No offense but not exactly unbiased. -It is clearly not the same exact engine. Cam, intake, exhuast, tune, etc. are different. -all motors make power with bolt ons. Typically very little from a CAI and no tune No opinion on your last two points. These CAI vendors and manufacturers obviously have a vested interest in posting big hp gains. A truly scientific test would attempt to explain the results, using other data, and not just throw things on a dyno and report the numbers. GM probably has 1000000x the R+D budget of all of these CAI manufacturers combined, so it seems a bit absurd that such a hp gain would be possible. Especially in light of the fact that the new ecoboost now out torgues the 6.2. Wouldn't now be the time for GM to "remove the restriction" and reclaim bragging rights for power, if they were in fact intentionally throttling back the 6.2? Air is not the limiting reagent in combustion chemistry, so increasing available air by 10% or 1000% isn't going to make a lick of difference in hp. But it will sell a lot of CAI's.....

Stock suspension with stock 275/55r20 Wranger SRA's: 2" level in front with 275/60r20 Falken AT3W's

GM is not leaving 36 hp on the table. That's just ridiculous. I'm sure Blackbear didn't do anything malicious...but there's something for sure flakey with their data.

oh nevermind....we're not talking about the value of catch cans anymore....