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Discussion Starter #1 (Edited)
After tons of searching to find a cure for the slow returning/dropping to idle RPM, and hearing advice that I needed to replace the flywheel, throttle body, computer tuning, and/or removing the balance shafts, etc..., I stumbled upon the "idle air restricter" from Fastforward Ltd. http://www.fastforwardltd.com/accessories.htm .

Since nobody had any experience with the part, I figured I'd post up. Last week I received and installed it - I purposely waited to post until after a week of driving, just in case the computer would re-learn/compensate for the addition of the part.

RESULTS -

(1) Cold Start- Original - This never bothered me, but since there is a dramatic difference I figured I'd bring this up. When starting the car with the engine cold (keep in mind this is Vegas, garage temp is probably like 60), upon starting, the car's idle would immediately hit about 2,200 rpm, staying there for about 15 seconds, then start to gently fall to around 1,400.

NOW - when cold, the RPMs climb only to about 1,400 rpm, then gently fall. Much nicer than original.

(2) Normal Driving (engine warm) - Original - Under normal accelleration, if I were bringing the car to like 3,000 rpm, it'd take probably 1.5 sec for the RPM to drop to where I could let out the clutch on the upshift in order to make a smooth shift.

NOW - The RPMs fall much quicker - not as quick as I'd like, but it's a noticeable - and welcome - change from the way it was originally. BTW, FastForward told me this, saying the idle air restrictor for the Zetecs provide a bigger difference than the ones for the Dura's.

For anybody with the slow-returning RPM (aka idle hang), I recommend this. Although it may not make the return to idle RPM perfect, it did make a noticeable improvement on mine. For under $100, this is probably a worthwhile investment.

With respect to FastForward, I spoke with both Nathaniel and Doug prior to buying the part - they were really cool and took the time to answer a lot of questions about the restrictor. Their customer service was excellent.
 

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link doesn't work.
but cool, the idle hang bothers me a quite a lot.
nice find, thanks.
 

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Link doesn't work for me either!!!

I would look into although just the name makes me think a little on what it could do bad to the motor a littler later down the line... I think I will stick to my clutch flywheel combo to help that idle hang.
 

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yeah, we have stepper motors (iac's ). it keeps the rpms falling slowly to help with hc emissions

so when you do whatever the link says to do, you are tampering with an emission device and you just screwed your warranty.

in ohio tampering with an emission device = huge fine and like 5-7 years jail time.
 

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Discussion Starter #5
Weird, the link worked before. [???:)]

The piece goes in the TB, therefore the IAC (and all other emission components) are fully-functional. Nothing is disconnected or bypassed. But, if the car were to go in for service, I'd remove it, just in case (just like I would remove a CAI, tuning, etc...). Shouldn't be a problem with the warranty.

In any case, just a heads-up as nobody was familar with the part or its results.
 

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I think they're web page might be down for some reason. The link looks right and I did a search for the Company in Yahoo and the URL is the same as 96ta posted.

I've been looking for a way to cure this problem without going all out getting a flywheel and all the other stuff. How much was this piece exactly? I remember seeing this for the ZETEC engine and it looked like a little plastic piece that you block that little rectangle hole right before the butterfly valve in the throttle body. I could be wrong.
 

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And is there anyway you could shoot off a couple pictures of this part and where it goes in the Intake? Maybe we could come up with a "Home Made" version.
 

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Appears that their website is down....it says Directory Listing Denied...which means something is FUBAR on their end....gah!
 

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Discussion Starter #10
Sorry for the delay.

IIRC, the price was $79 + S/H.

Not sure how the Zetec one looks, but for the Duratech the idle air bypass is a channel that bypasses the butterfly in the TB. The "piece" fits into the bypass channel in the TB, restricting the amount of air that goes in the bypass for the idle circuit.

FWIW, if the site becomes operational again, the piece shown as the Duratech piece must be for the Zetec, as that piece would not work with the Dura's TB. When I opened up the box I was pissed, thinking I got the wrong part, but when looking in the TB, I could tell the piece I received was correct and that the site's pic was wrong.

I'll try to get a few pic's (of it installed, I don't want to remove it in order to reduce any chances of damaging the piece as it fit in very snug) over the weekend. I'll also call the guys tomorrow and see what's up with their site.
 

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Algorhythm said:
So was this worth 80$ Any reason why I should do this I'm accustomed to the slow-falling RPMs?
if you dont mind it then i wouldnt bother getting it.
 

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Does it completely block that bypass? Or does it still allow a small amount of air to pass? $80 is ALOT of money for a silly little plastic piece that you plug a hole with...
 

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I would be afraid that that little piece could fall in the intake at any moment. I'm gonna stick with legitimate parts like clutch, flywheel, tuning, etc...
 

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Wow, what a bunch of naysayers. This problem occurs only on my Focus. I have never had a manual tranmission car act like this and it seriously degrades the pleasure of driving this little car. I would pay $80 to cure it in a New York Minute.

I would be afraid that that little piece could fall in the intake at any moment.
So what? If it's plastic it's not going to hurt anything.
yeah, we have stepper motors (iac's ). it keeps the rpms falling slowly to help with hc emissions
Yes, at the sacrifice of gas mileage and clutch life.

so when you do whatever the link says to do, you are tampering with an emission device and you just screwed your warranty.
Oh! I'm so worried!

in ohio tampering with an emission device = huge fine and like 5-7 years jail time.
Really? I can just imagine this cellblock conversation:

"So, what are you in for?"

"Uh, I tampered with my car's emission system."

[:D][:D][:D]
 

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R u kidding me? Do u seriously think that nothing will happen if that piece fell in the intake? Well if u wanna find that out go ahead, and by the way, nice way to enter a forum...[nono]
 

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Discussion Starter #18 (Edited)
If you're accustomed to the slow RPM drop (and if you are OK with it), I'd save the $80 for something else. For me, the slow drop drove me nuts, so I was willing to chance the it. For me, the $80 was well-spent.

The piece does have a passage for the air to flow through.

The part should not fall in the intake as it's beveled and the outter edge has a lip preventing it from going in the TB too far. Good point, though (will touch on this later)

OK, here's the deal......I just spoke w/ the guys; the business is restructuring and the website is one of the items being affected, hence it being down. It probably won't be up in the near-term. Why? The guys own/run a Ferrari company, Berlinetta Motorsports/Motorcars in NY, and the Focus business was basically an off-shoot as Doug, one of the owners, has a Focus for a daily-driver and thought it was a really cool car. Because he liked it so much, he decided to make a Focus-oriented business, albeit a small one. They modify them, tune them, and make parts for them. But with the restructure, and because the Focus-side of the business is very small compared to the Ferrari-side, it unfortunately must be treated as a lower priority.

For techincal questions, their Mon-Fri toll-free # is 888-881-1010.

I asked them if I could post a pic and they said it was OK but only if I posted that if anybody tries to duplicate something similar, you are doing it at your own risk. Again, if you try to make anything like this, you are doing so at your risk. They've spent a lot of time and money into making sure they made a product that would not melt, crack, disintegrate, etc... If you try to make something out of tape, epoxy, metal, etc... you risk damaging the engine if the piece you make gets ingested.

I have not had a chance to take a pic yet, but here is a pic from their website of the Zetec piece. I'll try to take pic of the piece later.
 

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Looks like a brake pad, LOL...
 
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