I must be getting old... :-) DIY 2012 intake modification - Focus Fanatics
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Focus Fanatics > Ford Focus Third Generation > DURATEC Ti-VCT Performance (2012-Current)

DURATEC Ti-VCT Performance (2012-Current) The place to chat about any Duratec 2.0L Ti-VCT engine performance, tuning and exhaust related upgrades.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 04-02-2012, 11:50 AM   #1
TORQUERULES
The Professor
 
Join Date: Oct 2003
Fan#: 1083
Location: Ripley, WV
What I Drive: '13 Mazdaspeed 3; '87 'Stang

Posts: 2,658
FF Reputation: 9 TORQUERULES Good Standing Member
Buy-Sell-Trade Rating: (3)
Thumbs up I must be getting old... :-) DIY 2012 intake modification

I LOVE my Mustang being obnoxiously loud, but of course it isn't driven anywhere close to daily. I had a 2001 Zx3 and of course a lot of modifications because it was fun at the time. Now that is sort of old. Let's face it... a loud 4cyl kinda sucks (of course that is just my opinion).

There has been a lot of talk about a better air induction set-up on the new Focus and I have to say I am impressed with Steeda's gains with their kit, and I love the ingenuity of some of our members in doing everything from a 3 inch hose providing extra air from the bumper to taking the air cleaner lid off. But, and this may be me getting old, the noise from an open filter on this engine is obnoxious. The ONLY way it sounds good is at WOT and that is not where I spend most of my time in the Focus. This is a great breathing engine and it likes to ingest air, but unless there is a louder exhaust (and it would have to be decently loud) to offset the intake, then it is just nasty. Not even a good tone down low. Just a sick and loud boggy sound. Yuck. I want to eventually put something like the FS Stealth exhaust on my car because they have a nice deep tone, but it won't really be enough to overcome the intake. I would love to hear what the Steeda sounds like with its velocity stack design MAF housing, but I haven't had the chance.

So what this is all leading to is me thinking about how to make a "little" intake sound (you have to have a little---LOL) and get in more air without it sounding like a sick elephant stuck in the mud surrounded by crocs.

First I removed the silencer under the air box. Sounded gay. So I made a block off plate for the hole left behind because the silencer itself is gay. The tone increased, but not in a bad way. Linear and well integrated with the stock exhaust.

Then I tried the lid off the box (I have a K&N installed). Super gay. WOT was killer, but it sounded sad everywhere else. Not a good smooth tone.

So, I got to thinking about how this thing pulls air in factory form. It has two snorkels going to the box. Good. They run to the grill area at the front of the car. Good. Then there is a restrictive snorkle gathering air from the opposite side of the grille. Bad. And the opening of the grill is blocked by a piece of thin plastic that directs air away from the intake and instead to the very top of the radiator (actually mostly right over the top since the radiator gets 99.9% of its air from the bumper) with only about a 2x2" hole nowhere near the entrance of the snorkle. Very bad.

So... I got out my tools and first removed the snorkle behind the grille. This left a nice opening in the radiator support that the snorkles from the box plug into. I then removed the thin plastic shield that keeps most of the air being rammed into the grill from getting to the intake. This required some cutting, but you never notice it because it is all hidden.

So now my engine has an enclosed airbox, with two entrances for air (which are now short), and it pulls air from under the entire grill bar. All good (or at least much, much better than stock).

The sound is perfect. Smooth and linear and most people think it was meant to sound that way. The power seems improved seat of the pants (and I am very attuned to that I assure you). Nothing draumatic, but nicely noticable.

Now, before you talk about water, just remember that the stock airbox has previsions to eliminate that threat for anything other than driving through water up the the window seals. Plus, rain, etc. is minimal in that area unless you again are driving through said flood (in which case even a stock Focus could be screwed).

Before you mention heat, think about a short ram. The heat impact there is minimal (been proven) especially with a shield, and it is right by the engine and radiator. A CAI is down by the road with radiates all kinds of heat, and the filter is still open in the engine compartment (plus the extra tubing hurts power which is why a short ram usually beats a true CAI for power). I am getting air from in front of the car. Is there heat there? Yes. But where does a new Mustang draw air? Same place. You can't completely get away from heat. But, I beleive I have the best area possible to draw air from, and when moving it will only get better.

So, that is my littlle DIY mod for the month. Wish I had pics, but it is almost impossible to get good shots down in there. I tried.


TORQUERULES is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 04-02-2012, 12:30 PM   #2
Mucrammada
Focus Enthusiast
 
Mucrammada's Avatar
 
Join Date: Nov 2011
Fan#: 91537
Location: Northern Kentucky, KY
What I Drive: 2013 Limited WRX Hatch, 2011 CTS

Posts: 502
FF Reputation: 1 Mucrammada Good Standing Member
Buy-Sell-Trade Rating: (1)
Along the heat the lines of heat from the Short Ram and CAI. They both were dyno'd with a fan on them, so essentially, the SRI will be hotter than the CAI. I think the Steeda is a great idea.
Mucrammada is offline  
    Reply With Quote
Old 04-02-2012, 01:16 PM   #3
darkangelism
Sonic Crew #04
 
darkangelism's Avatar
 
Join Date: May 2011
Fan#: 85425
Location: oklahoma city, OK
What I Drive: 2012 Focus Titanium Hatch

Posts: 7,222
FF Reputation: 9 darkangelism Good Standing Member
Buy-Sell-Trade Rating: (0)
i wonder if this mod will help improve the steeda or fswerks intakes as they use oem snorkel.
darkangelism is offline  
    Reply With Quote
Old 04-02-2012, 02:40 PM   #4
TORQUERULES
The Professor
 
Join Date: Oct 2003
Fan#: 1083
Location: Ripley, WV
What I Drive: '13 Mazdaspeed 3; '87 'Stang

Posts: 2,658
FF Reputation: 9 TORQUERULES Good Standing Member
Buy-Sell-Trade Rating: (3)
^^^^I am sure it would. Also, for the record we have had some pretty good heat down my way and it has not affected the cooling of the car. I do not see how it could. The radiator sets slightly below where that piece would have directed air.
TORQUERULES is offline  
    Reply With Quote
Old 04-02-2012, 08:56 PM   #5
Duffman355
Tasty Red Meat
 
Duffman355's Avatar
 
Join Date: Jan 2006
Fan#: 31282
Location: Paradise City, United States
What I Drive: 2012 Sonic Blue SE Sport 5 Spd

Posts: 18,141
FF Reputation: 43 Duffman355 Great Standing Member
Buy-Sell-Trade Rating: (1)
I don't doubt you at all, and not to play devils advocate as I am in the market for an intake (I have a really loud exhaust), but wouldn't highly paid ford engineers figure this out? Maybe I am contradicting myself as they build these things targeted to the masses who probably want nice quiet cars and don't care about power. I dunno. I have been reading too much about how efficient (ram air ish design) our stock intake is and how steeda rigs dynos, etc. I guess I am considering my options here
__________________
ST Crew #11 / SSR #5
Official Mayo Hater #1
Randomie's Lover #8
Duffman355 is offline  
    Reply With Quote
Old 04-02-2012, 10:35 PM   #6
darkangelism
Sonic Crew #04
 
darkangelism's Avatar
 
Join Date: May 2011
Fan#: 85425
Location: oklahoma city, OK
What I Drive: 2012 Focus Titanium Hatch

Posts: 7,222
FF Reputation: 9 darkangelism Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Duffman355 View Post
I don't doubt you at all, and not to play devils advocate as I am in the market for an intake (I have a really loud exhaust), but wouldn't highly paid ford engineers figure this out? Maybe I am contradicting myself as they build these things targeted to the masses who probably want nice quiet cars and don't care about power. I dunno. I have been reading too much about how efficient (ram air ish design) our stock intake is and how steeda rigs dynos, etc. I guess I am considering my options here
The ford designers care about noise levels, emissions, mass market stuff, you could do this mod and still get an intake, this just changes snorkel stuff
darkangelism is offline  
    Reply With Quote
Old 04-02-2012, 10:39 PM   #7
TORQUERULES
The Professor
 
Join Date: Oct 2003
Fan#: 1083
Location: Ripley, WV
What I Drive: '13 Mazdaspeed 3; '87 'Stang

Posts: 2,658
FF Reputation: 9 TORQUERULES Good Standing Member
Buy-Sell-Trade Rating: (3)
Duffman, I completely understand. The factory system is actually pretty good. It is probably the best compromise Ford engineers could come up with from a power, reliability, and NVH standpoint. It is easy to open up a Mustang intake. Especially the sweet new 5.0. To an enthusiast the sound of a 4valve V8 is music. But the Focus ( non-ST [the ST's turbo will change the game for what they will do from an NVH standpoint {more leeway}]) is a car for the masses that has evolved from being just plain fun and economical, to a fun, luxurious ( for its segment), and economical car. Thus the compromise that is the factory intake. The engineers did their best with the targets they were given. What I have did gives the Focus a little growl. Nothing loud, but noticeable. It is really pretty nice. But I assure you that some liberal douche from Motor Trend would complain. Thus the ultra-quiet factory compromise.
TORQUERULES is offline  
    Reply With Quote
Old 04-02-2012, 10:58 PM   #8
Duffman355
Tasty Red Meat
 
Duffman355's Avatar
 
Join Date: Jan 2006
Fan#: 31282
Location: Paradise City, United States
What I Drive: 2012 Sonic Blue SE Sport 5 Spd

Posts: 18,141
FF Reputation: 43 Duffman355 Great Standing Member
Buy-Sell-Trade Rating: (1)
^Nice triple enclosed quote . Even when drunk I only double bracket quote, lol (and that's usually in a non meaningful non informative way)

I agree with the two posts above me though which is why i am still sitting on my stock intake. I'm struggling still with with dropping $2-300 on an intake that may or may not benefit me with more gains than pure sound awesomeness. I have the FS Werks race exhaust and it is loud and menacing which I was looking for and may give me a few horses? I always considered the intake the more performance oriented mod as opposed to the sound exhaust provides personally. Good to have a board where this kind of debate is possible I suppose
__________________
ST Crew #11 / SSR #5
Official Mayo Hater #1
Randomie's Lover #8
Duffman355 is offline  
    Reply With Quote
Old 04-02-2012, 11:04 PM   #9
TORQUERULES
The Professor
 
Join Date: Oct 2003
Fan#: 1083
Location: Ripley, WV
What I Drive: '13 Mazdaspeed 3; '87 'Stang

Posts: 2,658
FF Reputation: 9 TORQUERULES Good Standing Member
Buy-Sell-Trade Rating: (3)
Thumbs up

Quote:
Originally Posted by Duffman355 View Post
^Nice triple enclosed quote . Even when drunk I only double bracket quote, lol (and that's usually in a non meaningful non informative way)

I agree with the two posts above me though which is why i am still sitting on my stock intake. I'm struggling still with with dropping $2-300 on an intake that may or may not benefit me with more gains than pure sound awesomeness. I have the FS Werks race exhaust and it is loud and menacing which I was looking for and may give me a few horses? I always considered the intake the more performance oriented mod as opposed to the sound exhaust provides personally. Good to have a board where this kind of debate is possible I suppose
Yea, the brackets did get excessive didn't they?

I believe an intake and exhaust together would make fantastic gains on this car. Even more so when you can tune with SCT and add a header and take off the cat. This engine has ALOT of potential. Think about it... DI, 12.1 compression, TI-VCT, excellent head flow... I see nice power N/A and F/I (the ST) coming in the future for these engines.
TORQUERULES is offline  
    Reply With Quote
Old 04-02-2012, 11:11 PM   #10
Duffman355
Tasty Red Meat
 
Duffman355's Avatar
 
Join Date: Jan 2006
Fan#: 31282
Location: Paradise City, United States
What I Drive: 2012 Sonic Blue SE Sport 5 Spd

Posts: 18,141
FF Reputation: 43 Duffman355 Great Standing Member
Buy-Sell-Trade Rating: (1)
I couldn't believe the stock compression ratio when I first read it. My engineer buddy wasn't phased at all though.
__________________
ST Crew #11 / SSR #5
Official Mayo Hater #1
Randomie's Lover #8
Duffman355 is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:17 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.