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Old 07-15-2010, 06:08 PM   #1 (permalink)
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Question the new ford fiesta --- Is This Tranny What Ecomodders Want?

So i don't know if a lot of you know, but the new ford fiesta gets better gas mileage with the new doulbe clutch automatic transmission than what it gets with the regular manual (stick shift)

... Question is though... Is this the ultimate transmission for Eco modders? Or can we attain better mileage from someone who drives manual transmissions the proper and fuel efficient way?

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Old 07-15-2010, 09:46 PM   #2 (permalink)
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With pulse and glide you'll be able to beat the auto trans. Cruise control / constant speed I imagine you'll still beat it in town. Cruise control / constant speed on the highway I bet the auto wins.
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Old 07-15-2010, 10:46 PM   #3 (permalink)
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As long as the torque cinverter is gone, its a step in the right direction as long as both clutches can be disengaged at will.
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Old 07-15-2010, 10:54 PM   #4 (permalink)
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I think it's what we as ecomodders want all automatic transmissions to go to, for the general public. (I want my wife to get one)

I was intrigued when they released that tranny. If it stands the test of time and doesn't self-destruct, I think it'll be a very popular style.
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Old 07-16-2010, 01:05 AM   #5 (permalink)
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Can I P&G the auto?
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Old 07-16-2010, 06:23 AM   #6 (permalink)
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Don't see why not, just leave it running and throw it in neutral. I found that I actually get better overall fe doing that with my Jeep. P to 50ish, G in neutral down to 33, but I don't shut off the motor, cause it's an auto tranny.
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Old 07-16-2010, 10:37 AM   #7 (permalink)
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Do you think maybe it will be even easier to p&g with it? Wouldn't it be "smoother" unlike the jerky transmissions of today?

Since it has two clutches one would already be engaged so it would just roll onto gear once your glide is done?
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Old 07-16-2010, 12:03 PM   #8 (permalink)
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It's not bump-startable. It does NOT have torque converter. In the Fiesta, you don't get "manumatic" control, though. It's got D, but no +/-, no paddle shifters, etc for you to force a shift.

I think the design is good, and we should WANT auto trannys to go this route; but if you love EOC'ing and bump-starting, you're out of luck.
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Old 07-16-2010, 01:14 PM   #9 (permalink)
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Im sure theres a way to do some modding to get control over the trans.
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Old 07-16-2010, 03:18 PM   #10 (permalink)
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Likely, but it's probably not good for the tranny. I know you can kill the ignition in my jeep in any gear but overdrive and if you turn the ignition back on while still rolling, it will "bump start" the engine, but I don't think it's good for the system. Auto's just aren't made for that abuse... I know apples to cumquats comparing a slushbox-tq to a double-clutch... but that's my two cents

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