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Focus ST EcoBoost Performance (2013-Current) The place to chat about the 2.0L EcoBoost engine performance, tuning and exhaust related upgrades.

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Old 03-10-2014, 11:07 PM   #61
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They can tell you anything. If it goes to court the judge will decide.
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Quote:
Originally Posted by MoncefA33 View Post
:lol:Modding is whatever you define it as. Some people wanna boost, some people need 10 TVs, and some of these homos feel compelled to LED their cars front to back.
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Old 03-11-2014, 09:39 AM   #62
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They can tell you anything. If it goes to court the judge will decide.
With these ecoboost engines, I would not want to be at the mercy of the judge.

The point is too many people add performance parts without thought and expect Ford, GM, and etc to pick up the tab if the engine fails.
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Old 04-16-2014, 06:17 PM   #63
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Great info guys. Thanks.


So as a daily driver and some "spirited" driving from time to time should I leave it alone or maybe a drop in K&N or other type of drop in filter and call it good, or......?

Aftermarket intercooler sounds tempting too later on down the road.....
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Old 04-16-2014, 09:12 PM   #64
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i may just put a nice sounding intake , good sounding exhaust passes NC state , and nice intercooler way down the road.
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Old 10-31-2014, 08:16 PM   #65
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The comment about the engine already (to paraphrase) "a high state of tune, and any aftermarket tune will be using 'crude' methods to gain a few HP and may break the engine."
I have to agree any two liter engine making 252HP is IN 'a high state of tune' already. (I remember when 100HP per liter was a huge deal)

Another point is the company (Ford, or the dealer) can say no, your broken thing is not covered. You can yell all day and night that they 'HAVE' to cover it blah blah blah.. In the end, you would have to pay a lawyer to go to court to fight it.
(NO lawyer is going to take your case on a contingency) The company will have $$$ lawyers to squash you like a bug. If you win, the company will appeal. And you still have nothing except way bigger lawyer bills than the repair would have been.
So YES car companies can refuse you for any reason they want. AND, yeah you can go to court and fight, if you have plenty of money to burn.

So generally intake and exhaust are usually OK.

I WOULD like to own the tool pictured earller with the six partitions having temps and boost/vacuum.. It is used to do tunes.. but just for the gauges shown it would be way cool. (I don't know if it is $500 cool though!)


Anyway my fantasy parts are a Vortech intercooler (so I can keep the shutter system) And just to avoid as much heat soak (which the Vortech has been proven to greatly reduce)
A PCV catch can for the crankase to intake, and one for the crankcase to intake valve area.
The K&N free flow air cleaner I already have.
The MBRP cat back exhaust. (just for the sound)
The Ford Racing short throw shifter.
And the COBB accessport V3 (as I wrote, just for the gauges which can be shown) Probably overkill on cost. but very nice to have the info IMO.
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Old 10-31-2014, 09:48 PM   #66
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... I have to agree any two liter engine making 252HP is IN 'a high state of tune' already. (I remember when 100HP per liter was a huge deal) ...
Me, too. It would be so much fun to take an ST (and maybe a 2015 Mustang GT 5.0) back 50 years in a time machine. Wouldn't the stuff that everyone takes for granted these days blow everyone's minds back then?
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Old 10-31-2014, 10:06 PM   #67
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Originally Posted by Arco-Zakus View Post
Me, too. It would be so much fun to take an ST (and maybe a 2015 Mustang GT 5.0) back 50 years in a time machine. Wouldn't the stuff that everyone takes for granted these days blow everyone's minds back then?
Sure would.
I knew a guy who did a variety of amateur racing in a souped up Corvair way back when I was in high school. . I would like to let HIM, back then, take the ST for a spin.
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Old 01-20-2015, 07:18 PM   #68
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Originally Posted by suss6052 View Post


The T-MAP sensor is called a MAF by ford as this is the job it's assigned to do at the air box. I.e. it is functionally equivalent as far as Ford is concerned in this application based on the speed/vs. density tables v.s. the voltage to mass air flow reading.

I know it's not actually a MAF sensor and have pointed this out before on this and other Forums, but from temperature and pressure using the look up tables and the ideal gas law the mass flow rate of air can be determined.

This I concur, the base Focus is a MAF driven car with just the single sensor at the exit of the air box.

I also don't see what false information I am supposedly spreading that would blow someone's car up either. If anything I was taking the conservative approach and explaining things as clearly as possible. If the o.p. isn't aware of how their car works stock the best advice would be to tighten the nut behind the wheel first before sinking money into aftermarket performance parts.

YouTube Video
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https://accessecu.com/support/docs/t...scriptions.pdf
Most cars use a single MAF since it's sufficient on a N/A motor.

What I don't understand is why Ford decided to go with 3 sensors.

I have an aftermarket turbo kit on my track car and the MAF got replaced by a single MAP. The I/C is also quite a bit bigger than the Focus' one and looking at the logs (AEM4 EMS) my IAT never goes beyond 70 which is really good. I would have expected that from a water-to-air I/C

The issue I have with the 3 sensors is that instead of having a single point of failure, the car has 3. Doesn't seem too efficient, especially when you consider how fragile a MAF is. I had a CAI on my track car before I installed the turbo kit and my MAF went to crap after a few months
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