Found a few free ponies

AK602

AK602

New member
Ok I know some of you have done this, I have been using a drop in K&N air filter for a while and its good, yesterday I decided to check it and noticed the huge pancake secondary air filter in the top of the box. Of course I yanked it out. What was TOUOTA thinking in this one, the thing looks clogged. So I did not get to drive it until today, and I have to say it feels like it has a few more ponies. Not to mention it was easy and free. Now I want to add a 3 inch air intake up to the grill.
Anyone do this? Any other ideas?
 
Register to hide this ad
Do some research on that extra filter and make sure you aren't removing something that is supposed to be there;I don't think Toyota just slaps useless parts through the truck.
 
Of course I yanked it out. What was TOUOTA thinking in this one, the thing looks clogged.
Click to expand...
Yep, Toyota engineers just throw all sorts of junk into the design. So, anything you see in the engine compartment that you don't recognize - just yank it out. After all, you know more about engine design than some Toyota design engineer!

From the 4Runner data sheet that Pitbull posted a link to it appears that you yanked out a carbon filter that is part of the emissions system.

I expect that your "few more ponies" exist only in your imagination.
 
I have been a mechanic for 15 plus years, there is no reason for a carbon filter in the air intake of a vehicle, and it all goes back to the old saying, more air in more out. Try it, take the carbon filter out carefully so you can put it back and drive your rig for a few days. Then let me know.
 
AK602 said:
I have been a mechanic for 15 plus years, there is no reason for a carbon filter in the air intake of a vehicle, and it all goes back to the old saying, more air in more out.
Click to expand...

I'm sure it won't kill the truck but certainly there IS a reason for it. Your years as a mechanic does not qualify you as an engineer and I think Toyota collectively has alot more experience and knowlegde than anyone here.
 
The carbon filter is for emissions purposes. It is designed to trap engine breather fumes and gas fumes in the intake system. This is especially needed when the engines is started or shutdown. SO when you start it up all this just gets burned by the engine.

The intake silencer reduces noise, and a lot of people remove this as well for improved airflow in the intake.

By doing a FIPK installation you effective remove both these systems, so just using a drop in system adn removing the carbon filter is less of an issue.

I am however not a big fan of drop in filters especially K&N type on vehicles that see offroad duty. These filters allow way more dirt through than stock filters, guess the extra airflow has a price to pay.
 
I agree with your off road issues, this is why I have a factory drop in to put in when those situations arrise. I have been using K&N's for years and never had an issue on many numerous vehicles including my supra. I have had them on chevy's fords etc (which I feels are much less resiliant than our runners)
The improved airflow is great. Your point about the FIPK is one that I have not thought of, and how many guys are running that?
 
If you want to really pump up some HP, fillup next time with 104 octane airplane fuel. You'll probably melt the heads and it ain't cheap, but I bet it'll make your motor get up and run.
 
bulldog-yota said:
The intake silencer reduces noise, and a lot of people remove this as well for improved airflow in the intake.
Click to expand...

Can you remove the silencer without damaging/removing the carbon filter?
 
you guys have really missed the boat on this one. anyone who has changed the factory intake has already removed this carbon filter.
 
Does the carbon/secondary filter require any servicing or replacement? I don't think it's been mentioned before. Thx
 
Not that I can tell. But it did not look to clean to me............
I still have it so I can look closer at it when I have time....
 
Does the carbon/secondary filter require any servicing or replacement?
Click to expand...
No servicing is required. The purpose of this filter is not for filtering the intake air; it is to absorb gasoline fumes that would otherwise be lost to the atmosphere after the engine is turned off and then give the gasoline back to the intake air when the engine starts running again.
 
I love these type of ez mods. I did this 2 days ago. By the way, did anyone else have to break the filter to get it out? I understand why it is there, and I also understand why some of us take it out. But, I didn't notice any improvement with it taken out and having the stock cloth filter. I will try it with the K&N filter once the cloth filter needs to be changed.

Keep those suggestions coming (regardless of people being somewhat defensive about messing with a perfectly good vehicle ) ;)
 
Yeah, I agree that most of these gains you feel on the "butt dyno" are probably imaginary. I'm sure tha by removing this filter you may gain a bit of power, but probably not enought to feel in the driver's seat. IMO, a custom CAI is the best way to draw hp intake wise on the 4Runners. As far as removing the resonator box, this should free up a bit of power, and aso free up some space to install a custom CAI.
 
You must log in or register to reply here.

Members online

No members online now.
Total: 121 (members: 0, guests: 121)

Forum statistics

Threads
278,309
Messages
3,554,071
Members
248,016
Latest member
Advally Service

Share this page

Trending content

Back
Top