intake resonator delete?

the ram air effect they get, combined with it going in as a 2nd air inlet, makes it convincing, k&n type intakes only use the 1 from the fender if im not mistaken. Interesting idea of doing a deckplate mod with an added ram air, if i could pull it off easy, could get me around our 2 year inpection.

 

If the empirepao data is close to accurate, im just thinking the 2nd tube must have helped a lot, and im interested to see them put a magnahelic guage in there to show if there is pressure building with acceleration. Im interested , but not enough to use my truck as a guinea pig.

 

You really think K&N, or any other major intake manufacturer, puts that kind of effort into their intakes? I assure you they don't. They look at the application, pick the pipe diameter (based on the stock intake diameter at the maf) then design a pipe to place the filter where it's convenient. That's about it.

 

Honestly what do you expect from a company that has made such a name for itself for providing a filter that does not actually filter? I am referring to the strenuous third party testing that has found silica levels in oil samples off the charts when using K&N filters and cold air intakes

 

http://www.knfilters.com/testmethod.htm
http://www.knfilters.com/powertesting.htm

Nah, they don't do none of that "testing" stuff!

http://www.bobistheoilguy.com/airfilter/airtest3.htm

They don't filter much worse than everything else on the market.

I agree, most CAI manufacturers just cobble parts together and don't take into consideration things like how they've changed the airflow in front of the MAF or how much hotter the air is they are letting in than the stock setup. K&N and a few other reputable companies are different.

 

from what i read and "understood", im very slow and take things the wrong way many times, but isnt the engine on a close looped circuit meaning that the maf calibrator wont do anything until after the loop goes to open around 3k or something? and then who drives their trucks above that regularly to have a significant difference in their dd.

i was talking with someone who had it installed it in their 4 banger over on ty i think and he said ya his butt dyno really felt it when he was wot and at high rpm's and nothing too significant on the low end.

again im wrong alot of the time lol

 

Your engine is in closed loop when it is below operating temperature. Once the temp gets up, it goes into open loop and uses the O2 sensors to regulate the air/fuel mixture. It does this at all rpms.

 

interesting thank you

so then what exactly does the maf calibrator do if 02 sensors do everything? does it lean it out cause the factory tune runs rich or something

nvm lets you do what you want just looked it over at urd

 

O2 sensors don't do everything. At over 80% throttle (basically WOT) the MAF takes over fuel control.

 

so then im guessing this in when the maf calib comes into play or does it still have an impact when the 02 sensors are doing their thing?

 

Correct. MAF calibrators only effect fuel when the ECU is in open loop, which it only hits at WOT. If you want to control the fuel in all circumstances, you need to either be able to flash the ECU (doubt anybody has figured this out on Tacos) or go full standalone, such as an AEM EMS.

 

so does temp have anything to do with open/closed loop like mentioned above?

 

You've got it backwards.

Cold engine and/or WOT = ECU in open loop, reading from fuel maps.
Hot engine w/less than 80% throttle = ECU in closed loop, using O2 sensors to hit 14.7 afr.

 

Alright, I gotta know what this part is. I am pretty dumb today lol. Any pics to help me visualize?

 

alright this is starting to make more sense and why people decide to go with the maf cal.

for me it makes no sense because im very rarely over 80% open throttle so the truck does what it wants to do but glad i finally understand why the rave about it is thanks otter!

 

yes, I do have it bass ackwards.

http://www.sjmautotechnik.com/trouble_shooting/10vo2sen.html

 

I confuse them often.