Armada said:I'm still concerned about the difference in low end performance between the stock intake and the AEM on their posted dyno run. I appreciate the AEM engineer explanation, but wouldn't that tranny issue show up in both runs? It shouldn't be limited to just the AEM. And wouldn't it be better to do several runs and average them? There can be a 10 horse difference on the same setup run back to back with no equipment change.
I don't know how AEM would be noticably superior to Volant and K&N.
I have a simple little $300 accelerometer (G-Tech Pro Competition) and play around with it a bit. The best gains, on average for a K&N drop in over the stock air filter is 2 horses, and I suspect that is within the margin of error, but it is consistent.
The best gains I am getting with a first generation K&N Aircharger are in the 8-10 horsepower range (all of this is at the rear wheels).
And, again, you can get this much variation from run to run without changing a thing, so it takes a series of runs under identical conditions and the averaging of them, IMHO before you can reliably demonstrate gains.
These runs, back in April when the weather was cool, show almost the same peak horsepower as your test vehicle in stock mode, but as much peak torque as the AEM test truck with the AEM Brute in place. However my torque curve does differ considerably from either AEM run, stock or modified, in that mine does drop off faster from peak than either of theirs. I don't know the reason for that.
I cannot get reading on this equipment for lower rpm unless I back out of the run early and then try to splice the runs together in the same chart. I may try that.
BTW accelerometers tend to read low in comparison to a chassis dyno because the testing is done at actual speed on the road and aerodynamics and wind resistance are involved, conditions not present on a chassis dyno.
My truck was using the K&N drop in that day and not the Aircharger.
Interesting you should ask. I just had my first opportunity in the vehicle tonight to check it! My wife is the primary driver of this vehicle and has driven all week since the install. When I flipped to the trip monitor, it read 17.1 mpg. It's never been that high, and she does a mix of highway and around town driving. Typcially, I would see around 15.6 to 16.0. I'm going to reset it tomorrow and track. So, we may have picked up better than 2-3 mpg in order for the average over the last 700 or 800 miles to have been a little more than 15 but the driving just in the last week, approx 300 miles, to have risen the overall to 17.1. I really didn't anticipate too much but hey these days I'll take any little gain. For the record, that is pretty much what I'd see when I checked the mpg in the FX45, and that is only 4-5 mpg worse than my 4 cyl Nissan Frontier!!SilverQShip said:whats your mpg at zrmann?
Isn't that the truth! I did not post to intentionally slam the Tundra, and I'm not sure what year model it was. My intent was to raise doubts about the claims of aftermarket intake products (not just AEM, but it happens to be their product in question).adjmcloon said:Man, those horsepower numbers make me laugh. No way could I deal with a Toy-ota after driving the Armada around!
What do you expect? Smallest motor in the class it is only a 7/8 size to begin with. Same size motor as the middle size Jeep Grand Cherokee motor. In '07 maybe they will make something worth looking at but for me, the last TOYota worth a look was the old Supra Turbo. Been almost a decade since there has been a fast TOY.adjmcloon said:Man, those horsepower numbers make me laugh. No way could I deal with a Toy-ota after driving the Armada around!
Sounds killer - can you post a link to the AEM comments? Is it on their web site? Thanks!gmartin66 said:After reading the AEM engineer's comments on the Brute Force intake, I bought it and had it installed today. What a difference in punch! I REALLY see a difference.
There was some increase in HP with the Borla system and I felt it, but I was NOT going to post a message lying to you all that I was chirping into second gear. I AM posting this to say that this particular combination really set the truck off.
One downside is that when you lay on it you HEAR that intake man. Driving the car moderately (most of the time for me) you do not hear the intake at all or a lot of exhaust howl. As in, I am not ashamed to drive it in my neighborhood. Step on it though, and the thing sounds scary. I actually started laughing at how muscle car it sounded.