Is it Turbo Lag?
#1
Guest
Posts: n/a
Re: Is it Turbo Lag?
"Len S." <this@ddress.is.invalid> wrote in message
news:zdGdnds2XYr3FnHdRVn-gQ@comcast.com...
> I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now.
If
> I start off spirited, the car moves our alright, then at around 3k rpms it
> snaps me back into the seat, and I have to back off before I shift. I
am
> guessing this is what is known as turbo lag. It's kind of an awkward
> sensation.
> Is that typical of these 1.8 T engines? I am wondering if it needs to
be
> checked out. Thanks in advance.
> - Len
>
>
No mate, turbo lag is where you plant your foot & nothing happens for a
second or two then whhoooshhhh! It's mot as bigger problem now as on old
Saab's etc. What your are experiencing is some kind of overrun for emissions
or some other bloody annoying crap reason!!
My wife's A4 Cab does the same thing & I hate it for that reason only.
#2
Guest
Posts: n/a
Re: Is it Turbo Lag?
"Len S." <this@ddress.is.invalid> wrote in message
news:zdGdnds2XYr3FnHdRVn-gQ@comcast.com...
> I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now.
If
> I start off spirited, the car moves our alright, then at around 3k rpms it
> snaps me back into the seat, and I have to back off before I shift. I
am
> guessing this is what is known as turbo lag. It's kind of an awkward
> sensation.
> Is that typical of these 1.8 T engines? I am wondering if it needs to
be
> checked out. Thanks in advance.
> - Len
>
>
No mate, turbo lag is where you plant your foot & nothing happens for a
second or two then whhoooshhhh! It's mot as bigger problem now as on old
Saab's etc. What your are experiencing is some kind of overrun for emissions
or some other bloody annoying crap reason!!
My wife's A4 Cab does the same thing & I hate it for that reason only.
#3
Guest
Posts: n/a
Re: Is it Turbo Lag?
Sounds exactly like turbo lag to me. Some manufacturers get around it
by adding a small turbo (in addition to the regular big one) that spins
up quickly despite the slower exhaust velocity at lower rpm. Audi on
their 2.7T uses two of the same size, but that engine has enough
displacement to provide decent torque even at low rpm. And with each
turbo filling just one bank of 3 cylinders, each one can be small enough
to compress air at lower rpm while being big enough to compress air at
the redline. Engine design is full of compromises.
When you say you 'start of spirited' I'm guessing you use some clutch
slip to get and then keep the engine near 3000 rpm - until the clutch
fully engages and you floor the throttle. If you don't, that's one way
to increase the exhaust velocity enough so the smallish motor doesn't
spend much time fighting to breathe well. You'll typically get the best
acceleration numbers this way. It's also an excellent way to decrease
the life of your clutch if done poorly.
by adding a small turbo (in addition to the regular big one) that spins
up quickly despite the slower exhaust velocity at lower rpm. Audi on
their 2.7T uses two of the same size, but that engine has enough
displacement to provide decent torque even at low rpm. And with each
turbo filling just one bank of 3 cylinders, each one can be small enough
to compress air at lower rpm while being big enough to compress air at
the redline. Engine design is full of compromises.
When you say you 'start of spirited' I'm guessing you use some clutch
slip to get and then keep the engine near 3000 rpm - until the clutch
fully engages and you floor the throttle. If you don't, that's one way
to increase the exhaust velocity enough so the smallish motor doesn't
spend much time fighting to breathe well. You'll typically get the best
acceleration numbers this way. It's also an excellent way to decrease
the life of your clutch if done poorly.
#4
Guest
Posts: n/a
Re: Is it Turbo Lag?
Sounds exactly like turbo lag to me. Some manufacturers get around it
by adding a small turbo (in addition to the regular big one) that spins
up quickly despite the slower exhaust velocity at lower rpm. Audi on
their 2.7T uses two of the same size, but that engine has enough
displacement to provide decent torque even at low rpm. And with each
turbo filling just one bank of 3 cylinders, each one can be small enough
to compress air at lower rpm while being big enough to compress air at
the redline. Engine design is full of compromises.
When you say you 'start of spirited' I'm guessing you use some clutch
slip to get and then keep the engine near 3000 rpm - until the clutch
fully engages and you floor the throttle. If you don't, that's one way
to increase the exhaust velocity enough so the smallish motor doesn't
spend much time fighting to breathe well. You'll typically get the best
acceleration numbers this way. It's also an excellent way to decrease
the life of your clutch if done poorly.
by adding a small turbo (in addition to the regular big one) that spins
up quickly despite the slower exhaust velocity at lower rpm. Audi on
their 2.7T uses two of the same size, but that engine has enough
displacement to provide decent torque even at low rpm. And with each
turbo filling just one bank of 3 cylinders, each one can be small enough
to compress air at lower rpm while being big enough to compress air at
the redline. Engine design is full of compromises.
When you say you 'start of spirited' I'm guessing you use some clutch
slip to get and then keep the engine near 3000 rpm - until the clutch
fully engages and you floor the throttle. If you don't, that's one way
to increase the exhaust velocity enough so the smallish motor doesn't
spend much time fighting to breathe well. You'll typically get the best
acceleration numbers this way. It's also an excellent way to decrease
the life of your clutch if done poorly.
#5
Guest
Posts: n/a
Re: Is it Turbo Lag?
On Thu, 8 Jul 2004 19:44:21 -0400, "Len S." <this@ddress.is.invalid>
wrote:
>I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
>I start off spirited, the car moves our alright, then at around 3k rpms it
>snaps me back into the seat, and I have to back off before I shift. I am
>guessing this is what is known as turbo lag. It's kind of an awkward
>sensation.
>Is that typical of these 1.8 T engines? I am wondering if it needs to be
>checked out. Thanks in advance.
> - Len
>
>
I have a 2004 1.8q and always drive in Tip mode. When I am in 2nd I
can feel a little 'bump' at around 2800 rpm or so and then I go to
3rd. I thought this was the lag.
What is happening in 2nd then as I go thru the bump?
wrote:
>I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
>I start off spirited, the car moves our alright, then at around 3k rpms it
>snaps me back into the seat, and I have to back off before I shift. I am
>guessing this is what is known as turbo lag. It's kind of an awkward
>sensation.
>Is that typical of these 1.8 T engines? I am wondering if it needs to be
>checked out. Thanks in advance.
> - Len
>
>
I have a 2004 1.8q and always drive in Tip mode. When I am in 2nd I
can feel a little 'bump' at around 2800 rpm or so and then I go to
3rd. I thought this was the lag.
What is happening in 2nd then as I go thru the bump?
#6
Guest
Posts: n/a
Re: Is it Turbo Lag?
On Thu, 8 Jul 2004 19:44:21 -0400, "Len S." <this@ddress.is.invalid>
wrote:
>I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
>I start off spirited, the car moves our alright, then at around 3k rpms it
>snaps me back into the seat, and I have to back off before I shift. I am
>guessing this is what is known as turbo lag. It's kind of an awkward
>sensation.
>Is that typical of these 1.8 T engines? I am wondering if it needs to be
>checked out. Thanks in advance.
> - Len
>
>
I have a 2004 1.8q and always drive in Tip mode. When I am in 2nd I
can feel a little 'bump' at around 2800 rpm or so and then I go to
3rd. I thought this was the lag.
What is happening in 2nd then as I go thru the bump?
wrote:
>I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
>I start off spirited, the car moves our alright, then at around 3k rpms it
>snaps me back into the seat, and I have to back off before I shift. I am
>guessing this is what is known as turbo lag. It's kind of an awkward
>sensation.
>Is that typical of these 1.8 T engines? I am wondering if it needs to be
>checked out. Thanks in advance.
> - Len
>
>
I have a 2004 1.8q and always drive in Tip mode. When I am in 2nd I
can feel a little 'bump' at around 2800 rpm or so and then I go to
3rd. I thought this was the lag.
What is happening in 2nd then as I go thru the bump?
#7
Guest
Posts: n/a
Is it Turbo Lag?
I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
I start off spirited, the car moves our alright, then at around 3k rpms it
snaps me back into the seat, and I have to back off before I shift. I am
guessing this is what is known as turbo lag. It's kind of an awkward
sensation.
Is that typical of these 1.8 T engines? I am wondering if it needs to be
checked out. Thanks in advance.
- Len
I start off spirited, the car moves our alright, then at around 3k rpms it
snaps me back into the seat, and I have to back off before I shift. I am
guessing this is what is known as turbo lag. It's kind of an awkward
sensation.
Is that typical of these 1.8 T engines? I am wondering if it needs to be
checked out. Thanks in advance.
- Len
#8
Guest
Posts: n/a
Re: Is it Turbo Lag?
Len S. wrote:
> I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
> I start off spirited, the car moves our alright, then at around 3k rpms it
> snaps me back into the seat, and I have to back off before I shift. I am
> guessing this is what is known as turbo lag. It's kind of an awkward
> sensation.
> Is that typical of these 1.8 T engines? I am wondering if it needs to be
> checked out. Thanks in advance.
> - Len
>
>
Your turbo charger doesn't kick in until around 3K rpm.
> I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
> I start off spirited, the car moves our alright, then at around 3k rpms it
> snaps me back into the seat, and I have to back off before I shift. I am
> guessing this is what is known as turbo lag. It's kind of an awkward
> sensation.
> Is that typical of these 1.8 T engines? I am wondering if it needs to be
> checked out. Thanks in advance.
> - Len
>
>
Your turbo charger doesn't kick in until around 3K rpm.
#9
Guest
Posts: n/a
Re: Is it Turbo Lag?
Len S. wrote:
> I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
> I start off spirited, the car moves our alright, then at around 3k rpms it
> snaps me back into the seat, and I have to back off before I shift. I am
> guessing this is what is known as turbo lag. It's kind of an awkward
> sensation.
> Is that typical of these 1.8 T engines? I am wondering if it needs to be
> checked out. Thanks in advance.
> - Len
>
>
Your turbo charger doesn't kick in until around 3K rpm.
> I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now. If
> I start off spirited, the car moves our alright, then at around 3k rpms it
> snaps me back into the seat, and I have to back off before I shift. I am
> guessing this is what is known as turbo lag. It's kind of an awkward
> sensation.
> Is that typical of these 1.8 T engines? I am wondering if it needs to be
> checked out. Thanks in advance.
> - Len
>
>
Your turbo charger doesn't kick in until around 3K rpm.
#10
Guest
Posts: n/a
Re: Is it Turbo Lag?
"Len S." <this@ddress.is.invalid> wrote in message
news:zdGdnds2XYr3FnHdRVn-gQ@comcast.com...
> I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now.
If
> I start off spirited, the car moves our alright, then at around 3k rpms it
> snaps me back into the seat, and I have to back off before I shift. I
am
> guessing this is what is known as turbo lag. It's kind of an awkward
> sensation.
> Is that typical of these 1.8 T engines? I am wondering if it needs to
be
> checked out. Thanks in advance.
"Turbo lag" is the bit that happens /before/ 3k rpm*
The "problem" you're experiencing is "Turbo smile" ;o)
--
Hairy One Kenobi
Disclaimer: the opinions expressed in this opinion do not necessarily
reflect the opinions of the highly-opinionated person expressing the opinion
in the first place. So there!
* Should finish at a lot lower than this - my chipped engine's "whoa!" point
is at about that.
news:zdGdnds2XYr3FnHdRVn-gQ@comcast.com...
> I have been enjoying my 02 A4 Avant 1.8T 5 spd for about six weeks now.
If
> I start off spirited, the car moves our alright, then at around 3k rpms it
> snaps me back into the seat, and I have to back off before I shift. I
am
> guessing this is what is known as turbo lag. It's kind of an awkward
> sensation.
> Is that typical of these 1.8 T engines? I am wondering if it needs to
be
> checked out. Thanks in advance.
"Turbo lag" is the bit that happens /before/ 3k rpm*
The "problem" you're experiencing is "Turbo smile" ;o)
--
Hairy One Kenobi
Disclaimer: the opinions expressed in this opinion do not necessarily
reflect the opinions of the highly-opinionated person expressing the opinion
in the first place. So there!
* Should finish at a lot lower than this - my chipped engine's "whoa!" point
is at about that.