Cold Air Intakes. Debunking false claims.

I would agree with you on that, I bough the K&N mostly for looks and sound. The polished pipe looks sweet lol.

 

Where I call BS on a lot of claims is most of this so called dyno testing is done with the hood up which allows for the CAI to grab all the "cold" air it wants. I bet if that hood was closed there would be no gains and maybe even losses. It also doesn't account for the air rushing by the inlet for a stock intake as the car is driven.

I was just a liberal arts major in college so maybe some engineers can chime in

 

Toyota should think about throwing a $20 air filter in to get those massive MPG increases, would save them hundreds of millions of dollars every year.

 

https://i.ytimg.com/vi/AhSGBOzUrUc/maxresdefault.jpg

 

@TacoSauceHB

Here's something to help you understand Density Altitude and Relative Density

I checked both of these once again where im at and now just over 1/2 hr ago

The Density Altitude is now 4500' or 300' increase and Relative Density is now 87.42 was 88.15 . Temp hasn't changed still 59° but both the barometer and dew point changed

Barometer went from 29.87 in hg to 29.86 in hg and the Dew point went from 29° to 31° so just that ever so slight change in barometric press and dew point raised the DA or corrected elev 300'

 

no, I didn't. I don't trust any dyno results from a company selling me a product because dyno results don't mean much which is why you will get a variance of hp and tq readings just running the exact same set up on the same dyno without changing anything. That is the exact reason they make multiple runs in the same configuration and take an average of the results. If you are running just 1 run stock and 1 run with the intake you can't even get an average and any results you show will likely fall within the allowable + or - variance of the stock motor.
Keep in mind that even given the exact same testing conditions you can still get skewed results by using a real dirty stock air filter that simulates a "real world" truck and swap out the K&N and get a great hp improvement and it's real honest hp gains but putting in a brand new stock air filter (read that as a clean air filter) and still get the same hp gains.
The devil is in the details and it's not gonna be found in the info that they do give you, it's in the info that they DON'T share. Way too many things that can be altered, airflow to the front end causing heat soak, tire pressure, octane rating, A/F ratio....
Your test will eliminate a lot of variables so it'll give a better baseline to go off of but again, gotta take it with a grain of salt cause it's not enough runs to get a proper baseline. It's still good stuff regardless

 

I wouldn't say monster but yes they hook up some large air movers. As they all say on the Mustang forum I'm on, a dyno is just a tool. If you want to know how the car (or truck) reacts to the mods take it to the strip and get some time slips.

 

A lot of the fans I see really don't look like they put out a ton of CFM over a large area. I highly doubt these fans are pushing air at driving speed In sarcasm I think the only reason they use them is to keep shop cool

 

It's to keep the engine and trans cool , try making a few pulls with a 5k stall converter and you'll appreciate the added air flow

 

Damn that's big lol. They guy I went to just had a few air movers that you can get at lowes. I trust him too, he's well known and a guy trailed his 1k+ hp sn95 to him for a dyno. I saw 2 firsts that day, a dyno roller getting track prep put on it and a dyno sheet that was flat at the top because the car made too much power for it lol.

 

Yep they spray Pimp juice on the rollers now , they also let you transbrake launch on the dyno now

 

That makes sense. I will video as much of the test as I can with detail.

 

Maybe Ill do that too haha sounds fun. Anyone in the OC area wanna run with me?

 

Ya it was incredible. I asked the guy how much boost and he said "oh only about 35 psi."

 

Never mind the power....... Your allowing dirt in your engine with these aftermarket filters...


On a truck especially, you want ultimate air filtration.. The paper filter is ultimate...



http://nicoclub.com/archives/kn-vs-oem-filter.html

 

I'm going to put my camera under the hood with a light then shut it so you can see, but when you close the hood it seals the top of that open box design. its not really pulling air from the engine bay as much as it seems, maybe some models do but not this one.

 

If you are only doing 2 pulls, that's just plain silly.
You aren't going to get accurate numbers.

They do a test pull (1) and (3) verified pulls so you can get an avg of your hp/tq numbers.

Also, there are 2 types of dynomometers that are going to give you different results. A chassis dyno and a mustang dyno. A mustang dyno, which sounds like what your cousin uses also measures emissions. It also measures 20%-30% less than what a chassis dyno measures because it uses a different formula.

A 400hp motor in a 3000lb vehicle or a 5000lb vehicle, still makes.....400hp.
So I don't see any reasoning behind what you said about adjusting the weight of the vehicle to give it more or less hp.

A dyno doesn't measure "speed", that's what the strip is for. A dyno doesn't give you 1/8, 1/4 or mile times.

The only way you will see an improvement in hp/tq numbers with the same engine/mods is to decrease the rotational mass. ie: lighter wheels/tires.

My 392 Scat Pack has spent time on both dynos. The only adjustment they make are the sae adjustments and adjustments pertaining to the weight that the straps are preloading on the rear rear rollers.

 

For the THIRD TIME... can you perceive from the driver's seat an 18hp increase.

I say no which is why this entire point is moot.

 

I would not doubt that a well designed CAI can make more power than stock..... the real question is: Does a CAI make enough power to be worth installing, and is that power gained in a useful spot of the power band?

20hp would be the point where you might could tell a difference in the butt dyno. The upper limit on cost would be $350 and should really be more like $150.

Now, if that were to translate to off idle power in a significant amount, that would be awesome.


I doubt most CAIs will give you that much unless the OEM design is very poor and way over baffled.

 

Doing my best to keep up while working lol I think you are trying to ask if I can "feel" the 18hp gain correct? Because the word perceive means "to become aware or conscious " of something. If that is what you are asking, I would have to say I honestly don't have enough experience to feel if its 5hp, 10hp, or 25hp gain. All I know is I can for sure 100% feel more power only at higher RPM's. Many other Taco owners have said the same thing. Whether the gain I am feeling is 18hp? I cant say, which is why I scheduled a Dyno test to find out. Did that answer your question?