K&N drop in questions

[SteveSRT8]

They're not inherently bad, just subject to user error during maintenance.

I can't see why with todays tech you wouldn't just use a dry one.

Really nice ET's!

 

[kkreit01]

A dyno would prove more than ETs. Due to human error, I wouldn't base any decisions on ETs.

Indeed -- very nice times though.

 

[Old Mustang Guy]

I wouldn't have done this prior to my warranty expiring but I recently had a JLT Cold Air Kit and a custom dyno tune done on my 06 Mustang GT. The difference is amazing and it gained 25hp on the dyno (260 to 285). This is at the rear wheels on an automatic.

 

[Old Mustang Guy]

I forgot to make a point. I don't think you get much from a high flow filter or even a cold air kit unless you do a tune to optimize it. That seems to be the consensus over at the "mustang source".

 

[Steve S]

Drop in means drop it in the garbage can.

 

[Steve S]

Originally Posted By: Old Mustang Guy
I wouldn't have done this prior to my warranty expiring but I recently had a JLT Cold Air Kit and a custom dyno tune done on my 06 Mustang GT. The difference is amazing and it gained 25hp on the dyno (260 to 285). This is at the rear wheels on an automatic.
What would the HP be with out the cold air ? Is the stock box and plumbing restrictive ot does the reprogram add a bit more gas and timing advance etc?

 

[Old Mustang Guy]

I don't know of anyone who got the tune without the cold air. I know some cold air kits work without a tune but with lesser gains. There is some restriction in the stock air box. My tune was a "89 octane torque tune" so I know the timing and air/fuel was changed. It also made the shifts much more crisp. It now chirps the tires going into second and into third. The guy that tuned it is supposed to be one of the best and I watched him make multiple dyno runs to fine tune it.

 

[mjf6866]

thanks Old Mustang Guy. i have a predator tuner and plan on installing the "93 octane CAI" tune to make up for this little bit of added air. i'm also planning on getting a MBRP cat back exhaust which also uncorks these cars quite a bit. many other challenger guys are seeing substantial gains with just the cat back.

SteveS, not sure if you were referring to the K&N or Amsoil drop in, but on these challengers, its showing time and time again that there are no real gains with a traditional cold air intake because of the hot air they are pulling in from the engine bay. the guy that ran this experiment with a "drop in" ran better every time over his cold air intake setup. now that was with the K&N and I am staying away after hearing multiple horror stories, but i still plan to cut the airbox and use this Amsoil filter.

 

[Old Mustang Guy]

That's interesting about the drop in doing better than the cold air kit. My JLT has a shroud designed to keep the engine bay heat away. I think the tune will really help. I notice the response more than anything. I really makes the car fun to drive. I also have an axle back exhaust which I did for sound but it may help power a little.

 

[bigmike]

Too many follow the leaders in here to get an accurate answer for anything with the term "K&N" attached to it.

Many people here have K&N filters and are quite content with them, but don't bother answering questions due to the negativity associated with them.

I've never, for the record, been able to see through them or, as one poster here put it, been able to "easily read the prices on the shelf while looking through the filter."

I find a hard time believing much of this nonsense. However, I think cleaning and oiling does interject a possible user-error. Most of the time I believe user error to be the root cause of any MAF issues.

If you do a search, you'll find that there are mixed results:

https://bobistheoilguy.com/forums/posts/1086768/
https://bobistheoilguy.com/forums/posts/1086768/
https://bobistheoilguy.com/forums/posts/1086768/
https://bobistheoilguy.com/forums/posts/1086768/


Good luck in your decision.

 

[BeanCounter]

I think it depends on your setup, but CAIs are not always beneficial in vehicles, especially on some of the newer models.

1) The heat that a CAI can inject that a stock box system may not can make notable differences, especially on boosted autos. Not all do, but there are only so many places to route CAI on vehicles, so you may not have many choices.

2) Some newer models actually have as much or, in some cases, more airflow as/than needed. This may be hard for the average person to calculated, but opening your intake up too much can be a bad thing. Some boosted cars have no need to open the intake up prior to opening up the exhaust more. Bottlenecks in a system can completely negate performance improvement (and even harm it where a tuned ECM, etc., is involved.

 

[mjf6866]

what would be the downside of an airbox thas open too much?

 

[BeanCounter]

Originally Posted By: mjf6866
what would be the downside of an airbox thas open too much?


Greater chance for heat, moisture, and insoluble (dirt) ingestion.

EDIT: If you park outside much -- critters too? It's possible.

 

[mjf6866]

Originally Posted By: BeanCounter
Originally Posted By: mjf6866
what would be the downside of an airbox thas open too much?


Greater chance for heat, moisture, and insoluble (dirt) ingestion.

EDIT: If you park outside much -- critters too? It's possible.


ok. i got ya. my car is garage kept and never sees the rain. i think i should be ok.

plus i plan on using the Amsoil filter which is, from what I'm reading, very good at filtering.

thanks for the response.

 

[BeanCounter]

Originally Posted By: mjf6866
Originally Posted By: BeanCounter
Originally Posted By: mjf6866
what would be the downside of an airbox thas open too much?


Greater chance for heat, moisture, and insoluble (dirt) ingestion.

EDIT: If you park outside much -- critters too? It's possible.


ok. i got ya. my car is garage kept and never sees the rain. i think i should be ok.

plus i plan on using the Amsoil filter which is, from what I'm reading, very good at filtering.

thanks for the response.


No problem. I believe you'll be extremely happy with the Amsoil filter.

 

[mjf6866]

Originally Posted By: BeanCounter

No problem. I believe you'll be extremely happy with the Amsoil filter.


thanks, glad to hear. i keep hearing about its ability to filter, but i'm wondering how much over stock i should see in terms of extra air flow. any ideas?

 

[BeanCounter]

Apart from what Amsoil states, I'm not sure.
It probably, technically, depends on filter size and a few other variables.

Comparing inch^2 to inch^2, they supply this:

But your engine is only going to consume so much at a time, so that isn't to say 5x the amount of air will be ingested per _____; or whatever.

Run it and post up some results for us!

 

[mjf6866]

will do!

 

[ARB1977]

K&N's are ok. I dont like how much oil they add to their filters out of the box. AFE's are awesome, even their Pro Dry filters. All it takes is soap and water to clean those.

 

[ARB1977]

Originally Posted By: RTexasF
Toyota offers a TRD oiled cotton gauze filter for my 3.5L RAV4 and it maintains the factory warranty.

The TRD filters are made by AFE...so are their cold air intakes just with a cool TRD stamp on the intake tube and if you get a sealed box the lid is also stamped with a TRD logo. I still have my old TRD...currently using a AFE Pro Dry.