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Old 09-11-2013, 05:33 PM   #171
kae9797
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Well I took the rubber strap off and did see a gap on way the tubes fitted together. I put some rubber tape that we use at work on that gap and put the strap back on and the car is running 100 % better!
No more hesitation and it seems to have more bottom end pickup.
Heck it even sounds better too!

I guess time will tell now if this will be a lasting fix!
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Old 09-11-2013, 05:51 PM   #172
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Quote:
Originally Posted by Et cetera View Post
Any other user experience?

yeah? Nah? No difference?

Would like to post this in my local Focus forum but would like to see more feedback before doing so.

My own car, a turbo diesel, does not have these pipes at all --I guess the engine is sucking in all hot air (which should be good for all engines in general and diesel in particular? Sorry, I am not an engineer and not a mechanic so the knowledge in this area is limited). But we do have 1.6l and 2.0l petro engines locally.
Diesels by nature aren't as sensitive to intake air temp as gas engines. Modern diesels tend to run best in the heat due to the emmisions equipment required on them in most areas. By heat, I mean weather/air intake and not simply the engine being warmed up. ANY combustion engine is more efficient operating at temp vs cold.
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Old 09-12-2013, 12:58 AM   #173
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Quote:
Originally Posted by Etch. View Post
Diesels by nature aren't as sensitive to intake air temp as gas engines. Modern diesels tend to run best in the heat due to the emmisions equipment required on them in most areas. By heat, I mean weather/air intake and not simply the engine being warmed up. ANY combustion engine is more efficient operating at temp vs cold.
Thanks for taking the time to explain this.

But this brings up another question: why would Ford bother to connect those pipes to the front of the car at all? Why would they just get rid of the pipes and allow the engine to suck in hotter air under the hood?
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Old 09-12-2013, 11:15 AM   #174
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Quote:
Originally Posted by Et cetera View Post
But this brings up another question: why would Ford bother to connect those pipes to the front of the car at all? Why would they just get rid of the pipes and allow the engine to suck in hotter air under the hood?
Cold air is denser (as is air under higher pressure, ergo Ram-air) which means more molecules of air are in the same size volume (of the combustion chamber) - the mass air flow sensor (in conjunction with the oxygen sensors) are very accurate at remaining at (or near) stoichiometric fuel-to-air ratios. More oxygen, more fuel = more power for the same size engine.

Anyway, a heat engine is most efficient thermally when the difference in temperature is greatest, that is, cold air (100% oxygen?) and a super hot engine/flame temperature. But there are thermal/mechanical limits for high-temperature applications... Best case scenario for your engine is really cold / high pressure air and a warmed up engine.

People start seeing MPG go down in the winter due to the dense air raising the drag of the car itself (good for the engine, bad for moving things...), idling to warm-up, increased rolling resistance of tires, and a bunch of other things that I don't feel like getting into right now.
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Old 09-12-2013, 03:13 PM   #175
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Quote:
Originally Posted by PratoN View Post
Cold air is denser (as is air under higher pressure, ergo Ram-air) which means more molecules of air are in the same size volume (of the combustion chamber) - the mass air flow sensor (in conjunction with the oxygen sensors) are very accurate at remaining at (or near) stoichiometric fuel-to-air ratios. More oxygen, more fuel = more power for the same size engine.

Anyway, a heat engine is most efficient thermally when the difference in temperature is greatest, that is, cold air (100% oxygen?) and a super hot engine/flame temperature. But there are thermal/mechanical limits for high-temperature applications... Best case scenario for your engine is really cold / high pressure air and a warmed up engine.

People start seeing MPG go down in the winter due to the dense air raising the drag of the car itself (good for the engine, bad for moving things...), idling to warm-up, increased rolling resistance of tires, and a bunch of other things that I don't feel like getting into right now.
How are the new clutches? Did you get it back yet?
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Old 09-12-2013, 03:16 PM   #176
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I'm going to go out on a limb here and say that after a full week of driving the car after this mod, it drives better.

I haven't had a rough idle at stop, take offs seem smoother, general response seems better. There is still some minor grinding in the transmission under slow acceleration, but it seems better (which makes sense if the car isn't stuck running rough at slow speeds.)

Honestly, for the 5 cents of duct tape this costs, and the literally one minute mod, i'd recommend people try this out and see if it helps them.
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Old 09-12-2013, 03:30 PM   #177
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Quote:
Originally Posted by gkirk View Post
How are the new clutches? Did you get it back yet?
Not yet. I called the dealer today - he said there was one car before mine in the queue and that the transmission tech was out sick today. I don't expect to get my car until Monday/Tuesday of next week.

EDIT: That said, as soon as I get it back I'm taping this gap shut.
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Old 09-12-2013, 04:12 PM   #178
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If I was a transmission tech, I would call in sick too.

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Old 09-12-2013, 04:18 PM   #179
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More duct tape.

Quote:
Originally Posted by PratoN View Post
... I don't expect to get my car until Monday/Tuesday of next week.

EDIT: That said, as soon as I get it back I'm taping this gap shut.
That will give you time to get yourself a roll of that Penguin Tape.
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Old 09-12-2013, 04:58 PM   #180
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Well, I tried this mod yesterday and I'll be damned if it didn't improve the throttle response! Seems slightly more responsive..just slightly more noticeable. Interesting theory...
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