Drilled stock airbox - Toyota Yaris Forums

detroiter · 04-26-2014, 03:16 PM

I was cleaning out the garage and found a second stock airbox configuration that I forgot I had. I was thinking about the airbox mod that's been here on the forum for a long time and figured, why not? So ended up drilling nickle sized holes in 3-5 lines all the way around the lower box. Needless to say, I wish I would have done this a long time ago, reminds me of the growl and sound the AFE intake gave me but obviously as a much lower price. That's not to say the AFE or any other intake is a bad thing, they look much nicer than a stock airbox. But if you're on a budget, it's a mod that's worth looking into

I'd like to give ChinoCharles credit for this one. It's his thread that gave me the idea to go ahead and make it happen.

malibuguy · 04-27-2014, 11:14 PM

You should remove the carbon trap so you might make use of the additional available flow

detroiter · 04-28-2014, 11:55 AM

Thanks for the tip! Any effect on the MAF sensor though? So far I don't really see any change in MPGs or anything like that, just much louder (and nicer sounding!) under acceleration.

ilikerice · 04-28-2014, 12:18 PM

Removing that wont effect the MAF sensor.

Thirty-Nine · 04-28-2014, 12:30 PM

I did this exact same thing when I first had my Yaris in 2007. Adds a nice sound.

7:34pm · 04-28-2014, 01:23 PM

I'm bored and have the day off... so what size drill bit are we using, and we're drilling below the panel correct?

Thirty-Nine · 04-30-2014, 01:27 PM

Here's what I did.

http://www.subcompactculture.com/200...-my-yaris.html

monchito18 · 04-30-2014, 06:01 PM

Quote:

Originally Posted by Thirty-Nine

Here's what I did.

http://www.subcompactculture.com/200...-my-yaris.html

How does it sound?

Thirty-Nine · 05-01-2014, 01:33 PM

Quote:

Originally Posted by monchito18

How does it sound?

It sounded great at WOT. I have the K&N Typhoon now.

As far as heat soak, any short-ram-style intake is going to likely suck in warm air. They're probably more of a noise maker than anything.

Most stock intakes are designed so well these days that it's unlikely any gains of more than 1-2 hp could be made if that unless you're already making serious power (e.g. Garm's old Yaris).

Rigaud · 05-01-2014, 06:44 PM

Quote:

Originally Posted by Thirty-Nine

It sounded great at WOT. I have the K&N Typhoon now.

As far as heat soak, any short-ram-style intake is going to likely suck in warm air. They're probably more of a noise maker than anything.

Most stock intakes are designed so well these days that it's unlikely any gains of more than 1-2 hp could be made if that unless you're already making serious power (e.g. Garm's old Yaris).

On a 1.5L engine you don't get more then maybe .5 h.p., better throttle response and noise. Whether a short-ram or a long cold air intake theirs no power gain really. Been a lot of studies and research on that and like you mention, their so well designed now. On bigger engines 5.0L and bigger theirs an increase.

detroiter · 04-30-2014, 02:09 PM

Wow and I thought mine looked awesome lol. Good job!

detroiter · 04-30-2014, 10:46 PM

Here's basically what I did...goes all the way around the lower portion of the intake box

Exiwolfman · 04-30-2014, 10:53 PM

[QUOTE=detroiter;735854]Here's basically what I did...goes all the way around the lower portion of the intake box

that should make for some cool sound ...if u can post sound with intake running that would be fantastic .

One question ...what style air cone makes most sound open or closed end ?

trunkout · 05-01-2014, 01:04 AM

Quote:

Originally Posted by detroiter

Here's basically what I did...goes all the way around the lower portion of the intake box

DOING THIS THIS WEEKEND!

driverofchuckles · 08-11-2014, 12:02 PM

Quote:

Originally Posted by detroiter

Here's basically what I did...goes all the way around the lower portion of the intake box

Getting ready to drill this exact moment!

detroiter · 05-01-2014, 12:21 AM

At lower rpms with hard acceleration, it kind of reminds me of a boxer engine from a Subaru WRX. At higher rpm hard acceleration, reminds me of some Honda VTEC hah.

I'm using a high flow air filter as well.

yariseggvvti · 05-01-2014, 03:19 AM

I didnt drill any holes in the box. What I had done is took out the tube from the lower air cleaner box and put a K&N drop in filter. Sounds deep and once the VVTi active is screming.

detroiter · 05-01-2014, 06:30 AM

I've had the "elephant trunk" tube off for a long time...it does add a deeper sound. Once the holes are added, it's MUCH deeper than that.

04-26-2014, 03:16 PM	#1
detroiter Drives: 2008 Polar White LB Auto Join Date: Oct 2008 Location: Metro Detroit Posts: 1,238	Drilled stock airbox I was cleaning out the garage and found a second stock airbox configuration that I forgot I had. I was thinking about the airbox mod that's been here on the forum for a long time and figured, why not? So ended up drilling nickle sized holes in 3-5 lines all the way around the lower box. Needless to say, I wish I would have done this a long time ago, reminds me of the growl and sound the AFE intake gave me but obviously as a much lower price. That's not to say the AFE or any other intake is a bad thing, they look much nicer than a stock airbox. But if you're on a budget, it's a mod that's worth looking into I'd like to give ChinoCharles credit for this one. It's his thread that gave me the idea to go ahead and make it happen. __________________ I live my life a quarter pounder at a time. And for those 500 calories or more, I'm free. I need FRIES! Two of them. The big ones. Oh, and I need them tonight. You're lucky the double shot of BBQ sauce didn't blow the seam on your nugget box. There she is, 2 pounds of pure beef. My dad ate it in 9.0 seconds flat. Check it out, it's like this. If I lose, winner takes my happy meal. But if I win, I take the burger and the toy. To some people, that's more important.

04-27-2014, 11:14 PM	#2
malibuguy Obsessed with 1.5L Drives: '10 PW Yaris Sedan Join Date: Feb 2011 Location: Westminster, MD Posts: 908	You should remove the carbon trap so you might make use of the additional available flow __________________ -Greg...the Exhaust Freak. -10 PW sedan 107whp/110wtq, full exhaust, suspension bits, TRD LSD -06 Highlander 3mzfe Limited AWD -82 Malibu, 1uzfe swap -97 Tercel coupe, 1nzfe/4.31 -96 Tercel coupe, Turbo 5efe, autoX -96 Tercel 4dr

04-28-2014, 11:55 AM	#3
detroiter Drives: 2008 Polar White LB Auto Join Date: Oct 2008 Location: Metro Detroit Posts: 1,238	Thanks for the tip! Any effect on the MAF sensor though? So far I don't really see any change in MPGs or anything like that, just much louder (and nicer sounding!) under acceleration. __________________ I live my life a quarter pounder at a time. And for those 500 calories or more, I'm free. I need FRIES! Two of them. The big ones. Oh, and I need them tonight. You're lucky the double shot of BBQ sauce didn't blow the seam on your nugget box. There she is, 2 pounds of pure beef. My dad ate it in 9.0 seconds flat. Check it out, it's like this. If I lose, winner takes my happy meal. But if I win, I take the burger and the toy. To some people, that's more important.

04-28-2014, 12:18 PM	#4
ilikerice Drives: 2010 black yaris Join Date: Oct 2010 Location: savannah, ga Posts: 2,868	Removing that wont effect the MAF sensor. __________________ -Derrick- "Racing is important to men who do it well. When you're racing... It's life. Anything that happens before or after, is just waiting."

04-28-2014, 12:30 PM	#5
Thirty-Nine Small cars are a big deal View User's Garage Drives: 2007 Yaris Liftback Join Date: Feb 2006 Location: Portland, OR Posts: 3,144	I did this exact same thing when I first had my Yaris in 2007. Adds a nice sound. __________________ Subcompact Culture: The Small car blog

04-28-2014, 01:23 PM	#6
7:34pm Drives: 07 Yaris Join Date: Sep 2012 Location: British Columbia Posts: 132	I'm bored and have the day off... so what size drill bit are we using, and we're drilling below the panel correct?

04-30-2014, 01:27 PM	#7
Thirty-Nine Small cars are a big deal View User's Garage Drives: 2007 Yaris Liftback Join Date: Feb 2006 Location: Portland, OR Posts: 3,144	Here's what I did. http://www.subcompactculture.com/200...-my-yaris.html __________________ Subcompact Culture: The Small car blog

04-30-2014, 02:09 PM	#11
detroiter Drives: 2008 Polar White LB Auto Join Date: Oct 2008 Location: Metro Detroit Posts: 1,238	Wow and I thought mine looked awesome lol. Good job! __________________ I live my life a quarter pounder at a time. And for those 500 calories or more, I'm free. I need FRIES! Two of them. The big ones. Oh, and I need them tonight. You're lucky the double shot of BBQ sauce didn't blow the seam on your nugget box. There she is, 2 pounds of pure beef. My dad ate it in 9.0 seconds flat. Check it out, it's like this. If I lose, winner takes my happy meal. But if I win, I take the burger and the toy. To some people, that's more important.

04-30-2014, 10:46 PM	#12
detroiter Drives: 2008 Polar White LB Auto Join Date: Oct 2008 Location: Metro Detroit Posts: 1,238	Here's basically what I did...goes all the way around the lower portion of the intake box __________________ I live my life a quarter pounder at a time. And for those 500 calories or more, I'm free. I need FRIES! Two of them. The big ones. Oh, and I need them tonight. You're lucky the double shot of BBQ sauce didn't blow the seam on your nugget box. There she is, 2 pounds of pure beef. My dad ate it in 9.0 seconds flat. Check it out, it's like this. If I lose, winner takes my happy meal. But if I win, I take the burger and the toy. To some people, that's more important.

04-30-2014, 10:53 PM	#13
Exiwolfman View User's Garage Drives: 2007 Yaris Join Date: Feb 2013 Location: Wasaga beach Posts: 1,617	[QUOTE=detroiter;735854]Here's basically what I did...goes all the way around the lower portion of the intake box that should make for some cool sound ...if u can post sound with intake running that would be fantastic . One question ...what style air cone makes most sound open or closed end ?

05-01-2014, 12:21 AM	#16
detroiter Drives: 2008 Polar White LB Auto Join Date: Oct 2008 Location: Metro Detroit Posts: 1,238	At lower rpms with hard acceleration, it kind of reminds me of a boxer engine from a Subaru WRX. At higher rpm hard acceleration, reminds me of some Honda VTEC hah. I'm using a high flow air filter as well. __________________ I live my life a quarter pounder at a time. And for those 500 calories or more, I'm free. I need FRIES! Two of them. The big ones. Oh, and I need them tonight. You're lucky the double shot of BBQ sauce didn't blow the seam on your nugget box. There she is, 2 pounds of pure beef. My dad ate it in 9.0 seconds flat. Check it out, it's like this. If I lose, winner takes my happy meal. But if I win, I take the burger and the toy. To some people, that's more important.

05-01-2014, 03:19 AM	#17
yariseggvvti Drives: Yaris Hatchieback Join Date: Jun 2010 Location: Cali Posts: 199	I didnt drill any holes in the box. What I had done is took out the tube from the lower air cleaner box and put a K&N drop in filter. Sounds deep and once the VVTi active is screming.

05-01-2014, 06:30 AM	#18
detroiter Drives: 2008 Polar White LB Auto Join Date: Oct 2008 Location: Metro Detroit Posts: 1,238	I've had the "elephant trunk" tube off for a long time...it does add a deeper sound. Once the holes are added, it's MUCH deeper than that. __________________ I live my life a quarter pounder at a time. And for those 500 calories or more, I'm free. I need FRIES! Two of them. The big ones. Oh, and I need them tonight. You're lucky the double shot of BBQ sauce didn't blow the seam on your nugget box. There she is, 2 pounds of pure beef. My dad ate it in 9.0 seconds flat. Check it out, it's like this. If I lose, winner takes my happy meal. But if I win, I take the burger and the toy. To some people, that's more important.

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