Use Sport Mode? - JeepForum.com
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post #1 of 17 Old 11-16-2021, 08:58 PM Thread Starter
Quadra_Drive
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Use Sport Mode?

I have a 2017 WK2 Trailhawk with the V6. A few extra skid plates and I carry a lot of gear, so it runs heavy. Are the any benefits/downsides to driving sport mode? Decreased gas mileage is a pretty obvious downside (I think), but don't know how significant it is. Gas mileage aside, does the 3.6L like to shift at higher rpms? Is it happier?

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post #2 of 17 Old 11-16-2021, 09:47 PM
JonMopar
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It just changes the shift program to hold gears a little higher into the rev range, and maybe shift a little less smoothly (more aggressively…or at least it feels that way because of the higher revs).

As far as benefits? If lower gas mileage and making the engine work more are benefits, then yeah lol. But in all seriousness no not really .

I wouldn’t say it makes thungs much more snappy or quick. If you’re after quick, maybe look at getting a hemi, because 3.6s work well and have adequate power, but are otherwise the economical choice. Nothing really sporty about them.

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post #3 of 17 Old 11-16-2021, 10:50 PM
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Difference are subtle, doesn't affect gas mileage in itself, but you may drive "sportier" which uses a bit more fuel.

Sport mode gives you a bit more rear wheel bias, more of a RWD feel, less transfer case clutch wear, but rear tires will wear faster. It lowers the suspension to aero height full time, so the center of gravity is lower which makes handling "sportier". The transmission shifts may feel snappier, downshifts are quicker.

But you are running heavy which, well... is not very sporty

Use sport mode if you like it, normal mode if you like that better. Using the same driving style one mode may give you better mpg than the other, depending on the style. But differences are in tenths of a mpg in my experience.
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post #4 of 17 Old 11-17-2021, 07:25 AM
BubbaATL
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I use sport mode on mountain roads to keep the suspension lower and shift points higher. I also use the paddles a lot there.

Otherwise it's off, and so is eco mode. Around town, sport mode feels too aggressive to me, and eco too, well, deliberate. Both off seems just right to me.

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post #5 of 17 Old 11-17-2021, 08:35 AM
Fast55
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You can also try a throttle calibrator like a Pedal Commander. Mine is hidden but can be adjusted through bluetooth but I just leave it in City +2. Not quite like sport mode but noticeably quicker response and no lowering into aero.
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post #6 of 17 Old 11-17-2021, 04:18 PM
Jurassic_Jeep
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sport mode also adds some extra engine braking, but just barely.

I don't use it often, only when I have to drive aggressively (i.e. pass someone, etc.), I quick slap the shifter and just floor it.

According to Mopar, anything over 3000 rpm is considered excessive engine speed (look up the oil consumption guidelines in this forum). Having said that, I drive normal with it (which would be slightly under average for most drivers) or its foot-through-the-floor because there is no in-between with the V6 because you need the trans to downshift for it to go decently fast, which it is, if you floor it.

Driving in Sport 24/7, I think will just put extra ware and tear on your vehicle with less benefit.

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post #7 of 17 Old 11-17-2021, 07:55 PM
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It tends to be rougher. And thatís because it holds gears longer before upshifting. And thatís where the engine braking comes from. You let off the gas, it doesnít up shift right away, the engine brakes the vehicle a bit. The point of that is that if you are truly driving sporty, you donít want a moment off the gas to cause an up shift which then needs a downshift upon getting back on the gas hard. But really, who needs to drive like this. There is some value when towing since it wonít up and downshift as often as you get on and off the gas since the engine isnít looking for highest gear possible at all moments.


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post #8 of 17 Old 11-17-2021, 09:40 PM
Fast55
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That is my issue with sport mode. It's just a little too "sporty". The PC in city mode is my answer. More response without holding a gear a little longer than I'd like. I also don't want to drive around in aero all the time. It's possible to get slight tire rub with the 275's, especially lowered to aero. Sport is fine if you're blasting through traffic and in a hurry, not so much for just a little later and snappier shifts.

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post #9 of 17 Old 11-17-2021, 11:12 PM
ColdCase
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The 8 speed is sporty enough, but sport mode provides a bit more driving satisfaction for early models that have fewer transmission gears. The V6 could be a dog in those early years. I don't see a need for sport mode when driving my 8 speed RAM V8 as it shifts often and quickly, never being too far from the right gear ratio. I imagine the late model 8 speed WK2s would also have diminished returns. Its throttle response near perfect, I wouldn't want to ruin it with a PC, but some do anyway as a fashion statement. It is a little easier to break the rear tires loose in sport mode, if you are into that kind of thing

There is actually less transfer case wear in sport mode as the clutches have less engagement and firmer shifts is always easier on transmissions, less clutch slippage. The tire alignment is done in aero mode, so your tires are more often in better alignment.

Bottom line is the differences are in driving satisfaction, which is subjective and a personal preference. No right way, no overriding technical reason to use one or another.
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Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #10 of 17 Old 11-18-2021, 02:52 PM
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Having a PC certainly hasn't "ruined" anything. I'm not sure how a Hemi Ram compares, but the TH always seemed to want to upshift a little earlier than what would be ideal. Having it for the last few thousand miles I would unscientifically say that is the case. My mileage has actually gone up just slightly. This by leaving it in one of the mildest settings. I find sport and especially sport plus to be far too extreme and essentially worthless. City is barely noticeable, far milder than factory sport mode and again, no lowering. Since they don't marry themselves to a VIN, you could possibly even borrow one to test and see what you think. I got quite a discount and don't regret the purchase.

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post #11 of 17 Old 11-18-2021, 05:22 PM
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Possible silly question: Sport mode does not increase braking 'power' but uses increased engine/transmission up/down shifting?

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post #12 of 17 Old 11-18-2021, 05:54 PM
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I appreciate the tip on using sport mode on twisty mountain roads. I have never tried it yet. Perhaps it would indeed improve steering response and lessen body roll just enough to be noticeable.
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post #13 of 17 Old 11-18-2021, 06:31 PM
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It does offer a little more engine braking because it will downshift and hold a gear totally unlike "standard" mode. It can offer some handling advantage lowering into aero as well. At 56 MPH it will lower by itself and stay in aero until you get below 25 MPH so you might already be seeing it. Sport has no effect on suspension if you do not have QL.

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post #14 of 17 Old 11-24-2021, 09:34 PM
dtrkyman
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I use it at times but generally use the manual sport shift with my shifter, 13 with 5 speed. I guess paddles on the newer 8 speed.
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post #15 of 17 Old 11-25-2021, 03:22 PM
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Is it just my imagination, or does sport mode also change the exhaust note in a Hemi? More throaty and V8 sounding to me anyway. I like it and use sport in town a lot just for that, to hell with mpg or maintenance. Woody. OEM exhaust in a 2014 Summit Hemi.
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