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Discussion Starter #1
First I wanted to say this is my first turbo engine and my first 4-cylinder; I'm pretty much owned V8s, previous two cars were a 6.0L Pontiac G8 GT and 5.7L Dodge Charger RT.

Anyway, I just wanted to let folks know there is a huge difference between the throttle response/torque in Drive vs. Sport mode, it's almost like a different car, which I like. My question is to the 3.7 V6 guys, is this same on the naturally aspirated 3.7L, as the 2.0L turbo?

Just curious?
 

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That's crazy, so I bet you feel like you have a 6cyl vehicle and not a four. It's good you like it, especially for someone that had powerful vehicles in the past.
 

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it might be a little bit more exaggerated on the turbo model as the delayed throttle response would also delay the turbo from spooling up.
 

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Discussion Starter #5
@ Telepathy - in Drive there is a slight delay when you tap the throttle, most people wouldn't notice it, unless you driven in sports mode, which can be attributed to the turbo spooling up as golfball mentioned.

Overall, the steering gets heavier (in a good way) and there is a noticeable increase in throttle response and overall power delivery.

Again, this is for the 2.0L turbo, I can't speak on the NA 3.7L.
 

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good to know.

i would expect the same on the 3.7L though maybe not as exaggerated.
that is the whole point of having drive modes in the first place.
 

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good to know.

i would expect the same on the 3.7L though maybe not as exaggerated.
that is the whole point of having drive modes in the first place.
drive modes can only do so much, it's really a combination of the ideal engine and transmission along with drive modes
 

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its not turbo lag, EcoBoost engines were designed to eliminate Turbo lag, its quite a clever set up actually. We're all familiar (somewhat) with how turbos typically work, the difference for EcoBoost is direct injection. The fuel pump shoots fuel directly into the combustion chamber instead of into the intake port as usually. By doing it this way you eliminate waste, notice how EcoBoosts don't have the typical wastegate WOOSH.

the result is low end torque and elimination of lag.

the sport mode in the MKZ simply ups throttle response and keeps the necessary revs on tap longer..
 

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its not turbo lag, EcoBoost engines were designed to eliminate Turbo lag, its quite a clever set up actually. We're all familiar (somewhat) with how turbos typically work, the difference for EcoBoost is direct injection. The fuel pump shoots fuel directly into the combustion chamber instead of into the intake port as usually. By doing it this way you eliminate waste, notice how EcoBoosts don't have the typical wastegate WOOSH.

the result is low end torque and elimination of lag.

the sport mode in the MKZ simply ups throttle response and keeps the necessary revs on tap longer..
It's all win, not only do we get no turbo lag but the low end power thats well needed. So the small engine and ecoboost tech combined = one killer combo.
 

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I remember reading this zep, thanks for the refresher/clarity.
no worries, its great technology glad to see you're enjoying it the way it should be enjoyed;)

how do you like what sport mode does to the MKZ's suspension? Its supposed to stiffen it considerably, obviously nothing of BMW or Cadillac caliber but it should attack corners a little better than typical...
 

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its not turbo lag, EcoBoost engines were designed to eliminate Turbo lag, its quite a clever set up actually. We're all familiar (somewhat) with how turbos typically work, the difference for EcoBoost is direct injection. The fuel pump shoots fuel directly into the combustion chamber instead of into the intake port as usually. By doing it this way you eliminate waste, notice how EcoBoosts don't have the typical wastegate WOOSH.

the result is low end torque and elimination of lag.

the sport mode in the MKZ simply ups throttle response and keeps the necessary revs on tap longer..
Without the wastegate that is why the ecoboost engine sound the way they do. Good definition of it though zep.
 
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