CAI OVER THINKING

[Dave Haddon]

If I get an S&B CAI with the alleged 30% greater air flow, would that cause the compter to match the fuel needed..ie air/flow ratio. If this is the case would it follow that you are going to get less mileage?..any opinions appreciated..

 

[crash68]

Yes it will use more fuel the more you push on the go pedal.
Just because the air filter is capable of passing more air, it still has to mixed with the correct ratio of fuel as determined by the throttle plate position. It may reduce the amount of throttle needed to maintain speed.

 

[Dave Haddon]

So are you saying it really does not improve anything other than lightening your pocket book?
I guess Ishould stay to stock

 

[Wild one]

So are you saying it really does not improve anything other than lightening your pocket book?
I guess Ishould stay to stock

Do the eco-diesals lower box with a good filter Dave,if you're ambitious add an extra duct to the lower box.Do a search on here,there's threads with pic's on how to add an extra duct to the box.

 

[Oliver Closehauf]

An internal combustion engine is just a pump. The more air fuel that goes in, the more power that comes out. A CAI by itself may not do anything if the stock air box already flows as much air as the existing engine and exhaust can handle. now if you go adding ported heads, a cam and free-er flowing exhaust, that CAI might provide some benefit if the stock airbox is a restriction. You have to figure out if you really need it or not.

 

[Dave Haddon]

Hey that's right Wild One..I read that thread somewhere..can you remember what it was under? I think they had associated part numbers. I think i will go that route and put in a K&N filter..I will do some more looking to try and find that thread..thanks again...

 

[Dave Haddon]

I think I found them 68232657AC & 68190706AB...I think it was a direct pull the old out and put in the new..the clips were the hardest paert if i remember..Thanks again

 

[Burla]

Don't ya love how they call it cold air induction, as if that will help you engine roar, but the engine also compensates to the o2 level whatever it is, so even the "cooler" air will be a wash once the engine adjusts. Plus, the 1500 take the air from the fender well, imo something they did right. I live on a gravel road, my air filter never gets dirty. The engine gets dusty, just not my filter for whatever reason. I'm sticking with stock, even if they mandate me to change it, ha.

 

[crazykid1994]

Don't ya love how they call it cold air induction, as if that will help you engine roar, but the engine also compensates to the o2 level whatever it is, so even the "cooler" air will be a wash once the engine adjusts. Plus, the 1500 take the air from the fender well, imo something they did right. I live on a gravel road, my air filter never gets dirty. The engine gets dusty, just not my filter for whatever reason. I'm sticking with stock, even if they mandate me to change it, ha.

That’s why I went the route I did with the snorkel. The stock setup flows really good and stayed really clean being tucked in the fender away from everything. My off-road bumper really did me in… cutting the wheel liner opened up the area and was allowing debris into the air box. In combination with the larger 6.4 air filter. Honestly my air temps are still the same as stock since most of the heat comes from engine bay heat soak anyways. I definitely wouldn’t want to be sucking in the engine bay air like a lot of the CAI kits do.

 

[Dean2]

On a stock motor, ALL cold air kits/high flow filters are a marketing ploy designed separate you from your cash. K&N has been famous for decades for selling their cleanable air filter that provides far worse dust protection than a stock paper filter. More air in has zero advantage unless you make other modifications.

 

[1979PowerWagon360]

On a stock motor, ALL cold air kits/high flow filters are a marketing ploy designed separate you from your cash. K&N has been famous for decades for selling their cleanable air filter that provides far worse dust protection than a stock paper filter. More air in has zero advantage unless you make other modifications.

Exactly!!! AND, the hp gains they advertise are under absolutely PERFECT conditions in their test controlled facility. Don't waste your money please.

 

[Docwagon1776]

So are you saying it really does not improve anything other than lightening your pocket book?
I guess Ishould stay to stock

They add as much hp as the sticker that comes with them, typically. Any increased fuel economy is from the reduction of weight of your wallet. Your 'butt dyno' may register gains, especially if the truck is now louder. Your subconscious brain equates noise with power and your conscious brain wants to justify the money spent, so butt dyno calibration responds to those things more than actual power gains. If you want the look or the sound of one, that's fine and we buy stuff for dumber reasons all the time, just don't expect power or efficiency gains.

The intake is not the chokepoint in these trucks and the air is already 'cold'. Long gone are the days of carbs and air cleaner canisters sucking air right over your motor.

You can get some minor bump from actual ram air set ups, especially if combined with supporting modifications.

 

[Dave Haddon]

Convinced! I don't figure the $ spent on the CAI would be recovered in the short term, I don't look under the hood much when driving or parked, I'm half deaf from Police gun range, and out here the bears are thicker than flies so speed not an option...Just like to do stuff to my Baby Warlock when $$ permits...come on Lottery!...Thanks everyone for the 2 cents..appreciate it..

 

[Zoe Saldana]

So are you saying it really does not improve anything other than lightening your pocket book?
I guess Ishould stay to stock

This.

Old tech for modern engine!

 

[Zoe Saldana]

An internal combustion engine is just a pump. The more air fuel that goes in, the more power that comes out. A CAI by itself may not do anything if the stock air box already flows as much air as the existing engine and exhaust can handle. now if you go adding ported heads, a cam and free-er flowing exhaust, that CAI might provide some benefit if the stock airbox is a restriction. You have to figure out if you really need it or not.

Not true with modern computer controlled engines. Maybe if you add a tune, you might get something.

 

[1979PowerWagon360]

IMO to see any real gains concerning air in/air out a good start would be long tube headers.

 

[turkeybird56]

CAI, unless you do the whole shebang, Cam, intake, headers, etc waste of money. IMHO...

 

[Hemi395]

FWIW heres my .02. I've had a S&B, Volant, and Vararam Air Grabber on my truck. I am back to the stock intake setup with the 6.4/Ecodiesel lower box and duct with a 6.4/Ecodiesel Mopar filter. I've also run a Green Filter and AEM Dryflow filter in my stock setup. The only gains I got from any of those was a few degrees lower IAT from the Vararam and Volant intakes and **maybe** a bit better throttle response. 0 MPG difference.

Oh and with the Green Filter in the stock box and Vararam Air Grabber I also found fine dust on the throttle body. The AEM gave me 0 gains with the exception of being reusable. Washing the AEM wasn't hard it just took FOREVER to dry. So for over a week I was back to running a paper filter. I decided the AEM filter wasn't worth the aggravation unless I had another one cleaned and ready to go.

As its been stated, you would need a whole list of mods on the truck before ever seeing any appreciable gains from a CAI. But even then, I've seen some supercharger setups on these trucks that utilized the stock airbox so I'm not sure you would gain much from a CAI then either.

 

[Oliver Closehauf]

Not true with modern computer controlled engines. Maybe if you add a tune, you might get something.

But a tune AND a CAI assumes the map is detuned and the stock air box was restricting air flow. Otherwise, all you would need is the tune.

What I was saying was if the stock air box already flows as much as the CAI, then simply adding one without any other changes won't help.

Full disclosure, I have a CAI on every vehicle I own except the wife's Taurus. But they all have other work too. Nothing is stock except the Taurus.

 

[Dave Haddon]

Thanks for that "proof" Hemi 395...real world experience is what is needed to help folks avoid the "advertising...appreciate it.