Author Topic: My new car: 2021 Audi SQ5 Prestige.  (Read 3546 times)

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Offline veeman

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #60 on: February 06, 2022, 09:20:58 am »
That’s significantly faster than your old G.  Does it noticeably feel faster?

Offline GoCougs

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #61 on: February 06, 2022, 09:17:29 pm »
That’s significantly faster than your old G.  Does it noticeably feel faster?

Sorta quicker. The SQ5 has launch control and comically harsh shifts in the lower gears, whereas the G had neither. So, lined up in a structured manner at a drag strip, the SQ5 will be noticeably quicker. However, out on the road, esp. from a roll at higher speeds, the SQ5 is only somewhat to a bit quicker.

Offline CaminoRacer

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #62 on: February 06, 2022, 10:05:03 pm »
Does it have any turbo lag?
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Offline Eye of the Tiger

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #63 on: February 07, 2022, 07:57:07 am »
Does it have any turbo lag?

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Offline CaminoRacer

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #64 on: February 07, 2022, 09:11:52 am »
Impossible

Oh it's a V6. Thought it was a turbo 4. Because everything is a turbo 4 these days.
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Offline Eye of the Tiger

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #65 on: February 07, 2022, 10:09:34 am »
Oh it's a V6. Thought it was a turbo 4. Because everything is a turbo 4 these days.

It’s a turbo V6, but it also makes maximum torque just off idle.
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Offline CaminoRacer

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #66 on: February 07, 2022, 10:22:41 am »
It’s a turbo V6, but it also makes maximum torque just off idle.

Sounds like it's an EV.
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Offline GoCougs

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #67 on: February 07, 2022, 11:06:30 am »
Just FYI all USDM B9 (2018+) SQ5s are the non-hybrid 3.0T V6.

There is moderate lag off idle (i.e., when not using LC or brake torque) at max throttle from a stop, and I imagine also when flat footing it in a tall gear, but the 8ZF is so responsive (and has auto kick down even in manual mode) once underway lag is effectively never encountered. There is the typical turbo dull throttle response that is not exactly lag though - the G's gruff old lump was light years ahead in throttle response. FWIW, the APR stage 1 tune supposedly addresses this to some extent (how, not sure).

Of note, Audi's 2.9TT V6 uses a small electric supercharger to minimize lag.




Offline GoCougs

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #68 on: February 07, 2022, 11:12:38 am »
Sorta quicker. The SQ5 has launch control and comically harsh shifts in the lower gears, whereas the G had neither. So, lined up in a structured manner at a drag strip, the SQ5 will be noticeably quicker. However, out on the road, esp. from a roll at higher speeds, the SQ5 is only somewhat to a bit quicker.

I should also say the SQ5 feels substantially quicker in daily driving because the 8ZF is so much more responsive that the G's 7AT (exactly how much quicker is hard to quantify (i.e., performance at part throttle, esp. down shifting in auto mode)).

Offline CaminoRacer

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #69 on: February 07, 2022, 11:19:28 am »
I should also say the SQ5 feels substantially quicker in daily driving because the 8ZF is so much more responsive that the G's 7AT (exactly how much quicker is hard to quantify (i.e., performance at part throttle, esp. down shifting in auto mode)).

Yes, turbo torque + better transmissions is the big difference between early 2000s cars and 2014+ cars, in my experience. Even in cars with similar power, the torque curve and transmission gearing/# of gears helps the newer cars smoke the older cars.
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Offline Eye of the Tiger

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #70 on: February 07, 2022, 11:50:49 am »
I am a fan of throttle response. Nothing beats a well tuned carburetor, but a fuel injected AMC tractor engine comes close.
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Offline r0tor

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #71 on: February 07, 2022, 01:17:14 pm »
I'm really not sold on an 8 speed on modern turbo cars.  The power bands are so damn wide that having a gear for every 1,500 rpms is nonsensical - especially when most turbo cars actually fall off pretty hard at the top of the rev range where it's locked into
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Offline GoCougs

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #72 on: February 07, 2022, 10:00:07 pm »
I'm really not sold on an 8 speed on modern turbo cars.  The power bands are so damn wide that having a gear for every 1,500 rpms is nonsensical - especially when most turbo cars actually fall off pretty hard at the top of the rev range where it's locked into

More gears = narrower RPM operating range near/at:

peak HP rpm = higher average power put to the street = quicker acceleration.

BSFC rpm = better mpg.

daily driving RPM = narrower process window = easier to tune emissions.

This will be the case for N/A or forced induction, diesel or gasoline.

These modern turbos in heavier-than-ever cars with an old-school 4/5/6 sp AT would suffer in performance, mpg and emissions (er, testing for emissions).

This is all presuming the transmission is up to the task - shifts quickly, shifts efficiently, efficiently transfers power and isn't overly big/heavy. Prior to ~10 years ago, that probably wasn't really possible, at least not cost effectively.

Also of note, Ford and GM recently upgraded their HD diesel pickups with a 10sp AT from a 6sp AT, no doubt a monumentally expensive undertaking, that wouldn't have been done if there wasn't a material benefit.


Offline FoMoJo

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #73 on: February 08, 2022, 09:59:38 am »
More gears = narrower RPM operating range near/at:

peak HP rpm = higher average power put to the street = quicker acceleration.

BSFC rpm = better mpg.

daily driving RPM = narrower process window = easier to tune emissions.

This will be the case for N/A or forced induction, diesel or gasoline.

These modern turbos in heavier-than-ever cars with an old-school 4/5/6 sp AT would suffer in performance, mpg and emissions (er, testing for emissions).

This is all presuming the transmission is up to the task - shifts quickly, shifts efficiently, efficiently transfers power and isn't overly big/heavy. Prior to ~10 years ago, that probably wasn't really possible, at least not cost effectively.

Also of note, Ford and GM recently upgraded their HD diesel pickups with a 10sp AT from a 6sp AT, no doubt a monumentally expensive undertaking, that wouldn't have been done if there wasn't a material benefit.
Largely driven by fuel efficiency numbers.  An 8, 9 and 10 speed with a small turbo generally try to keep the engine in the optimal rev range for fuel efficiency...unless you want to "drive it like you stole it," then the efficiency numbers go out the tailpipe.
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Offline GoCougs

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #74 on: March 10, 2022, 05:27:35 pm »
APR still doesn't have the tune for my ECU S/N. Have researched many tunes - IE, 034, EPL, etc., - that do exist. Thing is APR is the only stage 1 tune that is both CARB/50-state legal and available with a warranty that supplants the manufacturer warranty. Bummer as I'm dying a bit here - the SQ5 simply isn't as quick as it should be, esp. from a roll at freeway speeds. Anyway, hope it's ready soon.

Offline veeman

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #75 on: March 10, 2022, 05:40:02 pm »
APR still doesn't have the tune for my ECU S/N. Have researched many tunes - IE, 034, EPL, etc., - that do exist. Thing is APR is the only stage 1 tune that is both CARB/50-state legal and available with a warranty that supplants the manufacturer warranty. Bummer as I'm dying a bit here - the SQ5 simply isn't as quick as it should be, esp. from a roll at freeway speeds. Anyway, hope it's ready soon.


Maybe sell it and get a Macan. 

Offline GoCougs

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Re: My new car: 2021 Audi SQ5 Prestige.
« Reply #76 on: March 10, 2022, 09:24:11 pm »
The SQ5 is a better vehicle overall IME, esp. rear seat space and light-years ahead in infotainment.