ECO vs Sport

[DonD]

This question is only vaguely mentioned in the owner's manual.

My GT1 accelerates briskly in ECO but SPORT is considerably quicker.

Does anyone know what engine parameters change when you go from ECO to SPORT? Thanks, Don

 

[MerlintheMad]

Engine mapping changes. I know that gear changes are held longer to higher RPM. Decelerating holds higher RPM and downshifts sooner. Unless you manually go into 8th gear, Sport never uses 8th gear.

 

[DonD]

Engine mapping changes. I know that gear changes are held longer to higher RPM. Decelerating holds higher RPM and downshifts sooner. Unless you manually go into 8th gear, Sport never uses 8th gear.

Engine mapping can cover a lot of details, would think enging boost and timing being very critical ones. Don

 

[Redleg94]

Throttle response is changed based on pedal position. It's much more aggressive in SPORT vs ECO.

 

[DonD]

Throttle response is changed based on pedal position. It's much more aggressive in SPORT vs ECO.

Is that all or are their changes to boost and/or timing? Don

 

[Redleg94]

Is that all or are their changes to boost and/or timing? Don

I'm pretty sure that the timing changes and that,combined with the throttle response and the changed shift points, allow more boost to build quicker.

 

[DonD]

I'm pretty sure that the timing changes and that,combined with the throttle response and the changed shift points, allow more boost to build quicker.

Thanks for the info. I continue to be impressed with my GT1. Don

 

[87and66]

Is that all or are their changes to boost and/or timing? Don

Just judging by how much more I hear the turbos in sport mode (injen intakes), I’d say there is more boost. They are much louder and spool up sooner

 

[rpoffen]

I was under the impression that under WOT, there is no real difference, just different pedal response and shift patterns for sub WOT.

 

[DoctorStiches]

This question is only vaguely mentioned in the owner's manual.

My GT1 accelerates briskly in ECO but SPORT is considerably quicker.

Does anyone know what engine parameters change when you go from ECO to SPORT? Thanks, Don

Before i say this potentially rude comment...
What did you drive before the stinger ?

My eco mode is dreadfully slow
Sport is nice

My old cars were fast

 

[DonD]

Before i say this potentially rude comment...
What did you drive before the stinger ?

My eco mode is dreadfully slow
Sport is nice

My old cars were fast

I drove a 2016 Chevy SS which has the LS3 Corvette engine in it. Meathead gave me a head on, totalled the car, cop said 100% the other (uninsured) driver's fault.

This GT1 Stinger is far quicker around town than was the SS and I assure you, there was nothing wrong with the SSs performance.

Is your car a GT-Line 2.0 or 2.5?

People remember "old cars" through rose colored glasses and when testing was badly flawed.

Car & Driver got 0-60 on the Stinger at 4.4 sec, the SS at 4.6 and the GT1 has full torque 1300-4500 which contributes to it's around town muscle. Don

 

[5tinger]

From observation the following parameters change in sports mode.
Agressive throttle mapping.
Shift points are held at higher RPM.
Faster /harder gear changes.

It feels like there is more power in sports mode than comfort. Therefore I'm almost certain the boost is dialled up too.

 

[5tinger]

Before i say this potentially rude comment...
What did you drive before the stinger ?

My eco mode is dreadfully slow
Sport is nice

My old cars were fast

I just cannot understand how sports mode can be used for daily commutes.
It's far too agressive. And used long term it's surely to cause extra wear.

Don't get me wrong it's fun and really wakes the car up.

 

[DoctorStiches]

I drove a 2016 Chevy SS which has the LS3 Corvette engine in it. Meathead gave me a head on, totalled the car, cop said 100% the other (uninsured) driver's fault.

This GT1 Stinger is far quicker around town than was the SS and I assure you, there was nothing wrong with the SSs performance.

Is your car a GT-Line 2.0 or 2.5?

People remember "old cars" through rose colored glasses and when testing was badly flawed.

Car & Driver got 0-60 on the Stinger at 4.4 sec, the SS at 4.6 and the GT1 has full torque 1300-4500 which contributes to it's around town muscle. Don

Old car was a very modified eagle talon. Bassicly a mitsubishi eclipse with more hp than the stinger. But it was fwd so not as quick but perhaps faster. And then we get into gear ratios so maybe the stinger is faster still.

That said i have a 2018 gt1 and i am surprised that your ss was slower. Personaly i have had a chevy ss blow my doors off, with an engine like theirs mods do much more for horse power, so it must have been jucied up.

 

[DoctorStiches]

Forgive me if someone said this just above I didn't actually read the 1st few posts The lamba ii engine equipped in a stinger has a variable compression ratio as well as an electronic throttle. Going to sport mode changes the compression raises the boost increases the pedal sensitivity and weightens the steering through electronic Assist. It makes the car feel like a completely different car and if you have advanced shock absorbers the active suspension if you will and if you will then it also changes the right quality to a bit stiffer.. A lot of things change when you put that thing from echo to sport and you can really tell behind the wheel

 

[DonD]

Old car was a very modified eagle talon. Bassicly a mitsubishi eclipse with more hp than the stinger. But it was fwd so not as quick but perhaps faster. And then we get into gear ratios so maybe the stinger is faster still.

That said i have a 2018 gt1 and i am surprised that your ss was slower. Personaly i have had a chevy ss blow my doors off, with an engine like theirs mods do much more for horse power, so it must have been jucied up.

I understand. Some of those cars, which were among the quickest, reasonably priced cars of their time can be modified to greatly exceed factory power levels.

The 3.3L twin turbo produces 375 ft lbs torque at 1300. I had a GM dyno sheet on the SS, don't have it now but I'm pretty sure the SS didn't reach that level until 3000 or so, so there's a lot of juice down low and that makes it very enjoyable around town.

I am generally running ECO far more of the time than SPORT, it still has plenty of power even for dealing with driving skills challenged TX drivers. Don

 

[RM7]

Old car was a very modified eagle talon. Bassicly a mitsubishi eclipse with more hp than the stinger. But it was fwd so not as quick but perhaps faster. And then we get into gear ratios so maybe the stinger is faster still.

That said i have a 2018 gt1 and i am surprised that your ss was slower. Personaly i have had a chevy ss blow my doors off, with an engine like theirs mods do much more for horse power, so it must have been jucied up.

Not slower everywhere, it just doesn't have as much torque at low RPM as a twin turbo engine. If you were going high speed stuff, the SS would be walking away, although not fast either. Modern turbo engines create a car that is very "fast" at slower speed, fast to accelerate and everything else. The Stinger is now slow by any means, but the torque and HP climb more further into the RPM range with a NA LS3 and with enough road, either width or length, it will go faster. At the higher RPM, the small turbos are out of breath and taper off quite a bit. Then there's traction limits, where AWD turbo-anything will beat a RWD or FWD car from a stop every time, again, at at slower speeds, faster.

 

[DoctorStiches]

Excellent replies