3.3TT turbo lag

[voon]

One of the problems here ... I can't get it without.

 

[Beege]

Can you guys premise with thoughts of turbo lag with whether you have a RWD or AWD?

I test drove both and found there to be "lag" on the RWD but none with the AWD on launch control. I put quotes around lag because it almost seems like the RWD was doing it on purpose. Maybe for traction. It felt like the computer told it to hold on a sec and let it roll first.

Thanks!

 

[Thirteen]

in comfort and auto mode mine it takes a moment for the car to realize you want it to downshift and the throttle response isn't great but in sport mode if you put it in manual and downshift into the power band there is no noticeable lag to me.

 

[17th_Letter]

Can you guys premise with thoughts of turbo lag with whether you have a RWD or AWD?

I test drove both and found there to be "lag" on the RWD but none with the AWD on launch control. I put quotes around lag because it almost seems like the RWD was doing it on purpose. Maybe for traction. It felt like the computer told it to hold on a sec and let it roll first.

Thanks!

I would assume that on the RWD model there is a program torque reduction to make throttle application easier. I know they did that with the latest corevette. I have AWD and the lag on this is about the same as my tuned Audi S4... non existent.

 

[jdouga]

I have the rwd gt1, and don't really notice much lag, whether using launch control or not, so far the best time i've managed to 60 was a 4.6

 

[hej]

To be honest, I have noticed very little turbo lag. Sure, there may be a tiny bit but unless you have an electric motor to pre-spin the turbos, you're going to get some. On that note, why even bother with turbos? Why not put superchargers that are driven off a belt from the motor? Yeah, yeah. More fuel efficient. Pffft!

The 3.3 fuel economy it's pretty bad already. I had the exact same thought as youy and I don't think you'd lose much of anything if it was supercharged instead.

 

[eflyguy]

No significant lag with the two I've driven, and I was expecting it. It might be something about the way you're used to driving a non-turbo car. Not criticizing, but for most drivers the Stinger is just fine. Performance drivers tend to use little tricks - on most auto transmissions, you can get the vehicle moving quicker if you give the throttle a firm stab then backing off and feeding in throttle smoothly. I found that the Stinger was similar. Also - changing lanes to pass - if I *really* needed instant response, I would manually downshift to get the RPMs up. I do that in my Sorento, and it makes a huge difference.

 

[TV3]

You miss the STi yet? I'm in a 2015 and looking seriously at the base GT w/summers. Took me for EVER to figure out the STi. Now I drive it like a Ducati. Rev the shit out of it. Always. I spend WAY too much time in stop and go traffic to keep it, so that is my main driver for leaving the STi. The one thing I was not impressed with on the Stinger is the rear seat room, or lack there of, for such a large vehicle.

I have to say, this is my 4th turbo car: 84 Dodge Daytona, 85 Buick Regal Turbo , and 87 Buick Regal Turbo and I don't really notice any turbo lag with this car as a matter of fact I find it very similar in acceleration to the 87 Regal T.

 

[Clearly Canadian]

No significant lag with the two I've driven, and I was expecting it. It might be something about the way you're used to driving a non-turbo car. Not criticizing, but for most drivers the Stinger is just fine. Performance drivers tend to use little tricks - on most auto transmissions, you can get the vehicle moving quicker if you give the throttle a firm stab then backing off and feeding in throttle smoothly. I found that the Stinger was similar. Also - changing lanes to pass - if I *really* needed instant response, I would manually downshift to get the RPMs up. I do that in my Sorento, and it makes a huge difference.

Usually need to downshift at least two gears to make a noticeable difference. Unfortunately shifting also has some sort of lag.

 

[Weareblondi]

coming from turbo'ed and supercharged cars, besides various other n/a engines, the "lag" is so minimal in the stinger. trans loading helps this out, but, it is a turbo. not sure about the 2.0, but the 3.3 hits once the turbo's boost up. yes, a supercharger would negate that issue, but, with the low hood line, i am sure packaging such an engine would be a nightmare, besides the heat that would build up. but, i sure do miss that whine.

 

[Weareblondi]

sport mode and at a good 10-15 mph and a jab at the throttle and the car squats and goes. i think the comfort mode is what is causing his sensation of turbo lag. or, maybe, he hasn't had much experience with turbo cars. good thing the stinger has smaller turbo's, some of those larger ones, like my old porsche, was ridiculous. i could get halfway through war & peace, in russian, before boost would kick in.

 

[xot1]

Isn't turbo lag when you are driving and after lifting your foot from the gas pedal for some time, you press it again and the power is not there immediately?

 

[Kia Stinger]

Isn't turbo lag when you are driving and after lifting your foot from the gas pedal for some time, you press it again and the power is not there immediately?

Turbo lag is any time you expect the turbo to be working - and it isn't. More or less, you put the pedal to the metal and not much happens until the boost kicks in. Smaller turbos has almost completely done away with turbo lag. The is more of a problem with big turbos...

 

[Marc Collins]

Isn't turbo lag when you are driving and after lifting your foot from the gas pedal for some time, you press it again and the power is not there immediately?

There is as little turbo lag on the Stinger as any other turbo car ever made. Especially in Sport mode. I suspect people are experiencing transmission sluggishness in non-Sport modes. You press the pedal and there is a delay while the transmission first decides whether it should down-shift and then a bigger delay while it actually down-shifts. In Sport modes, the more aggressive down-shifting while "coasting" with your foot off the gas prevents most of this sluggishness. But then people are complaining that the car isn't gliding to a stop, but lurching or surging a bit as it would if you were down-shifting with a manual transmission. That's the whole point. If you want sporty and you want the car to respond instantly to your command, you need to first/already be in the right gear (as a skilled manual shift driver would be). Can't do that and have 1970's Buick smoothness at the same time.

 

[xot1]

From a dead stop, you cannot expect the turbos to be already running, they will only kick in at a certain RPM. Any car with turbos will behave like that.
I think the complain is a mix of turbo lag and delay of the transmission logic to execute the order (maybe downshift to the proper gear).

 

[Marc Collins]

From a dead stop, you cannot expect the turbos to be already running, they will only kick in at a certain RPM. Any car with turbos will behave like that.
I think the complain is a mix of turbo lag and delay of the transmission logic to execute the order (maybe downshift to the proper gear).

Full torque is available from 1,300 rpm, which in an automatic is essentially as soon as you touch the pedal.

 

[xot1]

Full torque is available from 1,300 rpm, which in an automatic is essentially as soon as you touch the pedal.

Does that mean the turbos are on at idle too?

 

[Weareblondi]

once the engine is spinning above 13oo rpm, the turbo will build boost. unlike a supercharger which is run off a belt, that one has boost building as engine rpm builds, the turbo needs to come up to speed, per se, before it is beneficial. that is why alot of twin turbo setups will have a small turbo and a big turbo to keep the lag at a minimum, but there will always be a slight hesitation on a turbo. haven't seen one yet that will have no lag. try putting it in sport, load the trans and let her rip. but, there is also traction to consider, driving conditions, driver reaction time to consider. like i posted before, they might be used to n/a cars that were geared for acceleration off the line. my brothers 79 t/a was saddled with something like 205 hp, but with almost 400 lbs of torque. stock. car did burnouts all day long, but ran out of breath before 4500 rpm.

 

[Marc Collins]

once the engine is spinning above 13oo rpm, the turbo will build boost. unlike a supercharger which is run off a belt, that one has boost building as engine rpm builds, the turbo needs to come up to speed, per se, before it is beneficial. that is why alot of twin turbo setups will have a small turbo and a big turbo to keep the lag at a minimum, but there will always be a slight hesitation on a turbo. haven't seen one yet that will have no lag. try putting it in sport, load the trans and let her rip. but, there is also traction to consider, driving conditions, driver reaction time to consider. like i posted before, they might be used to n/a cars that were geared for acceleration off the line. my brothers 79 t/a was saddled with something like 205 hp, but with almost 400 lbs of torque. stock. car did burnouts all day long, but ran out of breath before 4500 rpm.

No, the turbos are spinning at all times. They spool up quickly and provide boost quickly due to the two-scroll design. They reach maximum rpm within a short time. Full torque is already available by the time you reach 1,300 rpm. That's why the launch control starts feel so impressive. No need to rev this engine (high) to go.

 

[Clearly Canadian]

No, the turbos are spinning at all times. They spool up quickly and provide boost quickly due to the two-scroll design. They reach maximum rpm within a short time. Full torque is already available by the time you reach 1,300 rpm. That's why the launch control starts feel so impressive. No need to rev this engine (high) to go.

I wonder if this is also true in other drive modes, such as Eco?