Volvo eliminates Turbo Lag

these are truly the end times

welp time to take up arms

>>13978206

DISPLACEMENT FAGS ON SUICIDE WATCH

>>13978222
You realize turbo literally make the engine work as if it had more displacement right? It forces more fuel and air into the cylinders than they can normally hold.

>>13978206
although it's amazing technology and i'm all for tarbo's anyway, it won't get rid of the 'turbo lag'. it reduces it, drastically, but the turbo still has to spool up. where a displacement engine only needs 1 intake stroke (they are about a millisecond apart.) to provide the requested power.
displacementfags and bench-racers on /o/ will still argue it is not instantaneous.

>>13978222
u realise big ass engines can use forced induction too. Then they are still better. Also its nice to be able to make power before having to spin to like 6000rpm.

>>13978206

pretty great idea

>>13978263
Except with this you won't have to rev it all the way to 6000rpm before the turbo spools, that's the whole point.

>needing a displacement replacement
>actually allowing it
actual kukks

>>13978233
Well yeah, but it doesn't increase the displacement.

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>>13978596
>not having both displacement AND it's replacement
>not having a twinturbo big block with some nitrous to make up for the lag

>>13978598
You don't actually want displacement, you want power. Displacement gives you power at the bost of added weight (bigger engine block), rotating mass, and constant fuel consumption. Boost gives you power at the cost of complexity and fuel consumption when in boost.

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>turbochargers
>intercoolers
>plumbing
>catalytic converters
>pressure tanks
>urine tanks
What else will they find to stuff into cars? Two ton compacts when?

>>13978598
if you base displacment on volume, then yes it does.

I would like to have this as a button that you press

I really like those older STIs where you have the IC WATER SPRAY button where you spray water on your intercooler to prevent heat soak. Buttons are awesome.

>Diesel

Why would Volvo even pursue this? EPA has put a ban hammer on diesels

>>13978643
are you one of those retards I've heard so much about?

>>13978667
because volvo sells far more cars in europe than in burger land so they care more about EU regulations rather than the EPA

It's like drinking coca cola from a plastic bottle, it's the same stuff but glass bottles will always be better.

>>13978598
No; in fact one might say that it *replaces* the displacement.

So now I can't act like a smug pseudo-intellectual on car forums by repeating the adage NO REPLACEMENT FOR DISPLACEMENT?

Welp.

>>13978643
No volume stays exactly the same, it increases pressure / density.

>>13978222

But that air tank has to displace a fair amount of air to make the turbo spool faster.

I thought the whole point of turbos in "eco" cars is the fact that you don't spool so when you daily drive you're basically only using whatever shitty 2 liter 4 banger and when you drive hard the mpg and efficiency is thrown out the window cause boost?

>>13978937

>density

You know you need more air to increase density right?

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>>13978206

>THAT FUCKING "INNOCENT INDY-WHATEVER STYLE BACKGROUND MUSIC"

HOLY FUCK WHEN WILL THIS SHIT STOP BEING IN FUCKING EVERY AD.

>>13978971
But boost is more efficient than no boost. Ever considered why cars have lower power at high altitude with thinner air?

>>13978638
You do realize 2 tons is 4000 lbs and a lot of compacts are already damn close just with curb weight. Literally a full tank and 2 adult males and the car is about 4000lbs already.

>>13978582

Most twin scroll turbos spool up by 1400 rpm, so pretty much right outside of idle.

And with this new Power plus, even that little 800 rpm gap would be gone.

>>13979000
>more air
>more fuel
>higher rpm
>more efficient
Explain

>>13979011

The increase in power makes up for it though

Golf I GTI - curbweight: 810kg, 110hp, 0.13hp per kg

Golf VII R - curbweight 1476kg, 300hp, 0.2hp per kg

>>13979022
Higher than atmospheric pressure develops the same power with less fuel or more power with the same amount of power.

>>13979093
Then why do cars like the sti and evo have the power of a v6 but the fuel consumption of an escalade

>>13978206
>compressing air just to reduce turbo lag
Wow.

>>13979110
Because you're a nigger in a tin can corolla that's why

Any reason why they couldn't use that electricity for normal electronic spooling?

>>13979119
no need to get mad anon-san

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>he doesn't have anti-lag

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>>13979119
>mad that turbos are no replacement for displacement after all
>mad that pushrods are GOAT

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>>13979149
>mad that you dropped a valve
>mad that boost makes LS disintegrate
>mad that you can't rev to 6500 without destroying your engine

>>13978643
Displacement IS volume. Neither of those are mass, pressure, or density.

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>>13979197
>needing to rev to 6500 to make power

I would rather they use a variable geometry turbo and a mild parallel hybrid system.

The electric motor can Torque Fill to cover that tiny moment that even a variable turbo can not eliminate. While also providing for a start/stop and KERS.

>>13979218
Hybrid is a lossier solution to the spool issue
>introducing more energy loss modes (MG>control ICs>battery>control ICs>MG)
>externalizing propulsion energy to electric motor = correspondingly less exhaust heat to drive the turbine; the crux of the original issue
>introducing 10's x times heavier storage medium (battery cell array vs small pressure vessel)

>>13978651
Sounds like an awesome idea. Press for instant turbo boost, would be great.

>>13978971
Doesn't apply to diesels. Duh

>>13979127
Because pneumatic spooling is cheaper and more efficient than electric spooling. The elctric engines for that would be complicated.

>>13979197
LS's rev fine to 8K. Factory ones just run out of cam at 6.5/7K.

>>13978206

This is one of the things the Cargine, the camshaftless engine Koenigsegg n' Friends are working on, is claimed to be able to do

>>13979110
steep final drive ratios

Reminder: Volvo created a race engine off of their 2.0L i4 block using this system that reached 450hp.

With twin turbos they can pull an absurd amount of power so long as the block can handle it.

>>13979756
>as long as the block can handle it
Therein lies the rub.

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>>13979770
Well this drive train is going in production consumer vehicles so I think that the block actually can take it.

If they combine this with their rear electric engine they'll have ungodly fast sleeper sedans and crossovers on the road. Imagine a S60 pulling a quarter mile well under 10 seconds and still have fuel economy surpassing 30mpg highway. An extremely safe family car that goes toe to toe with a BMW M3.

>>13979788
That would be fucking hilarious.

>>13978980
This.

>>13979253
You could use most of starter circuitry switched over to turbo spool-up motor.

Also, why cant the air from compressor tank be forced directly into intake, to provide the same effect turbine does?

>>13979795
you are retarded desu

>>13979923
>Also, why cant the air from compressor tank be forced directly into intake, to provide the same effect turbine does?
Not enough volume or flow.

>>13979788
>530~ horse powers
Granted Volvo is going to price these around $60,000 regardless, but its interesting to think about something not specifically billed as a sports car being faster than a sports car.

>>13978248
>about a millisecond apart

At 15k ripims sure why not. What kind bike you riding bro.

>>13978248
>displacementfags
I fully embrace the turbo and have two turbocharged cars. But turbos are not a replacement for displacement, there isn't one, and the sooner delusional morons stop thinking they are, the better off we all will be.

>>13980011
>But turbos are not a replacement for displacement, there isn't one

Obviously a bigger motor with turbos on it can produce superior power to a smaller motor with turbos. If you're taking about a total drive train of X weight then a smaller block with turbos is probably going to end up with a performance advantage over a NA setup of equal weight.

>>13979932
This

>>13980091
Depends on what your "smaller" is. You can take, for instance, a 2JZ-GTE vs a Turbocharged LS Vee Ate. The murrimotor is the smaller, lighter one. Now I'm not starting an argument over which is better here, they're very different engines, but it's an example of the fact that smaller displacement doesn't equal lighter engine. I6s for example, are famously heavy for their displacement and have a high and far forward CG.

>>13980344
Faggot, I'm trying to avoid a fanboy shitstorm. 2JZ fanboys and LS fanboys are equally retarded.

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>>13979795

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>>13979149
Posted the wrong image anon.

>>13978206
Imagine the mods
>tank upgrade
>HX40 turbo

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>>13979011
>2 adult males

I need to build something like this for my car so I can spool better when it's necessary. On track days and stuff it's not necessary because I'm staying at high revs, but from a roll or at muh 1/4mi it counts.

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>>13979149
ameribetics are this delusional holy kek

>>13979082
could you imagine where we would be if there were less safety requirements? 300hp in 800kg would be wild. I feel like power to weight advantages is being held back because of this

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>>13981046
ANTILAG
N
T
I
L
A
G

>>13981158
Yeah, I'm not looking to blow my turbine wheel to pieces for a few tenths.

>>13978582
How are you such a faggot to confuse spooling with lag? Turbos don't make boost off throttle. Lag is how long it takes to go from off throttle to putting down power, this doesn't have shit to do with RPMs.

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>>13978206
>volvo browses /o/.
I still like my idea better.

>>13981194
Boost threshold =/= turbo lag, faggot.

>>13978206
I don't see the purpose of this. If you are racing, you aren't doing 2000k rpm shifts. If you are driving a turbo and bragging about it, but don't race, you're a faggot and deserve a riced out civic 22 in chrome nigger wheels.

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>chemical energy > kinetic energy > electrical energy > kinetic energy > compressed gas > chemical energy > kinetic energy

Literally why when you can
>electric energy > chemical energy > kinetic energy

>>13981203
Yes, exactly what I said, you cock guzzler. This shit is for turbo lag. Boost threshold won't fucking change.

>Turbo lag is the time delay between opening the engine’s throttle valve and when the turbo accelerates and delivers positive pressure (boost) to the engine when engine speed is above the boost threshold

>>13981232
Otherfag here, I think this is far more useful for reducing boost threshold when accelerating from a stop than reducing lag.

How long does it take to WOT through one gear, two? How fast could the compressor refill the tank while robbing power from the crank via the alternator during the WOT run?

Or, while sitting at a red light the compressor fills the tank back up so that you get boost from 1000rpm when you pull away.

Lag is practically irrelevant in the current year, cars have gears.

So soft so elegant so simple.

Just like our philosophy here at volvo.

We keep children safe and we love helping mothers get to the grocery store.

We've put together a nice video for you mom's out there. You won't understand it but we assure you the music and soft spoken gentelman will make you feel like you do.

So uh, what about superchargers now?

>>13981172
Ball bearing tarbo? Ceramic coat on the manifold/turbine + heat wrap + a gud tarbo blanket? All of those combined?

N2O? Moar cumpression?

>>13981258
It's going to be for lag though. It'd take way more air to lower the boost threshold via compressed air. You'd need some percentage of the volume of the engine multiplied by sixteen per every 1000rpms. That then has to be injected through the turbo till it's met its boost threshold. You're looking at a mighty big air tank there. Now injecting a bit for part of second reduce lag and make it feel like simply a bigger motor? That's not so hard. Think about the physics before you talk about changing boost threshold.

>>13981302
They're getting phased out. The high performance Drive-e engines won't have a turbo+super charger setup in the future.

>>13981315
I am thinking about the physics. Think about how long it would take to fill the tank and think about how much time you spend in a gear at WOT.

Also remember that automatics don't have to pull throttle to shift and many automatic turbos don't lose boost at all on a shift.

http://www.autoevolution.com/news/2016-volvo-s90-s-full-specifications-leaked-102532.html
>Volvo's Power Pulse is based on an air compressor which can eliminate the typical lag of turbocharged engines when hard accelerations from low speeds is requested.

>low speed
so, below boost threshold
https://www.youtube.com/watch?v=ZpQu3uRy1jg

>"When you put your foot down"
So not while you're already at WOT.

>"Extremely competitive take off performance"

This is seriously sounding like something that should lower boost threshold.

>>13981392
>This is seriously sounding like something that should lower boost threshold.
Sounds to me like it spools it faster.

>>13981402
From low speed when "You put your foot down" and you're taking off, aka boost threshold.

But please, quote from Volvo's own material and convince me that I'm wrong.

>>13978905
>Implying rhyming mantras have the slightest veneer of intellectualism

>>13981421
Still sounds to me like it spools faster.

Keep in mind that it's physically impossible for a little tank and sub 1" air line to be dumping enough air into the turbine to provide boost if there is not enough exhaust flow already to do it. It can, however, increase the volume of and velocity flow through the turbine to assist the exhaust gasses in spinning it up before there is enough boost and resultant extra exhaust flow to create the runaway effect that is rapid spool.

>>13981070
What is Group B rallying for $200, Alex

>>13981453
>it is impossible for fresh, uncombusted air injected under pressure to lower boost threshold.

Suck, squish, bang, blow.

The time to torque between gears is
a) not applicable when you first "put your foot down" because you're "taking off"
b) already negligible

>>13978643

>Base Displacement on Volume
>Implying Displacement ISN'T Volume.

How does it feel to be today's complete retard?

>>13981485
What are you talking about? These cars are already producing some boost off idle because of their highly optimized twin scroll design. This little burst of high pressure air lasts a second or less and just gives the turbine wheel a little extra push to help the relatively low temperature diesel exhaust gasses spin it up, once enough boost is being produced, it's a runaway effect.

You know damn well I'm not talking about "between gears" here, none of these cars will be sold with a manual transmission so that's 100% non-issue. I'm talking about lag on application of throttle from a stop or even from a roll in a high gear.

>>13981523
>from a stop

So, boost threshold like I said 45 minutes ago in
>>13981258


Glad we could finally work that out.

>>13981545
No, not boost threshold, because you're not creating boost where there wasn't any, which would be the "threshold" at which the engine produces boost.

It's helping the turbo spool faster.

>>13981556
>you're not creating boost where there is none

I'm pretty sure that's exactly what they're advertising.

>>13981563
I'm pretty sure it's literally impossible for that small amount of air flow to create boost where there isn't enough exhaust flow for there to be any.

>>13981566
>I think

Good thing you aren't a Volvo engineer

https://www.aachener-kolloquium.de/wp-content/uploads/2015/06/24.-ACK_Program-overview_2015_06_12.pdf

>The new Volvo 235hp diesel engine with extreme take-off performance
>24rd Aachen Colloquium Automobile and Engine Technology
>With the help of pneumatic energy the turbo lag is eliminated, allowing the offer of a 2.0 liter engine with transient performance equivalent to competitor engines of 3.0 liters.

http://link.springer.com/chapter/10.1007%2F978-1-84882-375-4_6
>Improvement in transient performance of a turbocharged diesel engine by air injection into the compressor. SAE Paper No. 730665, 1973.

>1973
>>13981566
>12/04/15
>I'm pretty sure

>>13981586
>in their own words
>increasing transient response
Well that proves me right then because poor transient response = turbo lag.

The PDF you posted is a wank move on your part, because it doesn't provide any information about the system itself.

>>13981613
>"From low speed"
Boost threshold.

If they're saying time to torque aka transient response is similar to a 3.0L engine then clearly you're not waiting for boost threshold. It's literally right there in front of you.

>>13979110
awd

>>13978643
You must not have your 9th grade science class until next semester, huh?

>>13981629
I honestly think you're mis-applying your term because you just proved that I'm right with your own post and you're still insisting that "boost threshold" is being improved instead of turbo lag being decreased.

>>13978206
Why doesn't it just compress the intake...

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>>13981613
https://www.repository.cam.ac.uk/bitstream/handle/1810/244951/DC_thesis_hbd.pdf?sequence=1

>The capability of these systems to improve engine response during 3rd gear tip-in manoeuvre was quan-tified.

>The improvement in transient torque delivery offered by the compressed air as-sistance is shown in Figure 4.9a

The compressed air assist improved the engine response sign
ificantly. The
136
recorded brake torque rose sharply up to
∼
90 % of its maximum value, which was
achieved within 2 seconds. At that moment the engine speed wa
s 1350 RPM (as
shown in Figure 4.9b). Comparing this result to the steady-s
tate characteristics
of the engine, it is observed that during the transient with a
ssistance enabled
the maximum steady-state torques were matched from signific
antly lower engine
speeds.
The improvement during the tip-in manoeuvre was possible be
cause of in-
creased quantity of intake air. The reason behind this enhan
cement can be de-
duced from Figure 4.9c, where the turbocharger speed is pres
ented

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>>13981657
>maximum steady-state torques were matched from significantly lower engine speeds.

What is the definition of boost threshold?

>>13981657
>that turbo speed graph

As you can clearly see, speed of the turbine increases much faster. This is the literal cause and technical definition of turbo lag - the time the turbine takes to spin up. So, turbo lag is being reduced. You can also notice that the torque curve has not been moved forward at all, only raised along with the faster rise in turbo rpm. This is consistent with peak boost being delivered more quickly, but NOT with boost beginning at lower RPM.

q.e.d.

>>13981681
>torque curve has not been moved forward at all

>maximum steady-state torques were matched from significantly lower engine speeds.

One of these is you, the other is a quote directly from the document.

Look at the green line on Brake Torque (Nm) vs Time again. Then, before you start committing more mental diarrhea to text look at it one more time.

>>13981649
It's a small amount of air being injected which matched with a strategically rich exhaust mixture creates an enhanced burn in the manifold pre-turbine. The jet of air itself is not what propels the turbine.

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>>13981698
Maximum torque is related to peak boost, not beginning of boost delivery. Peak boost delivered earlier = less turbo lag. Earlier onset of boost = lower boost threshold RPM.

>>13981713
Oh good, you said something true for once.

Now, lets take a look at turbocharger speed. Is the green line left of the black line?

Then lets examine this image. Are there assist plots with higher pressure ratios to the left of "No assist"?

So what would a transition from a PR of 1 to a PR of >1 represent?

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>>13981771
Whoops.

>>13981780
Pressure ratio curves on that chart for "ExhMan Assist" and "No Assist" start rising at the same point, but at different rates.

BTFO
T
F
O

>>13981392
>>13981421
>>13981545
>>13981563
>>13981586
>>13981629
>>13981657

>http://link.springer.com/chapter/10.1007%2F978-1-84882-375-4_6

Transient response, like what your graph is showing is literally turbo lag, you massive fucking cock gobbling fudge packer.

Anyone who thinks this reduces threshold (other than extremely marginally) is a fucking retard.
Stop posting.

>>13981810
>rising from the same point

They'd be useless if they didn't. Assist gets positive pressure before no assist and is closer to the surge line from T-0.

>>13981891
Engine transient response is not turbo lag, friendo.

>>13981943
>Engine transient response is not turbo lag, friendo.

he cant be this dumb right?

>>13981953
You know that turbos aren't mechanically connected to the the engine right? The transient response of the turbo impacts the transient response of the engine but isn't the same thing.

Stop arguing and splitting hairs over turbo lag and boost delay. Holy fucking shit.

Volvo's new triple boost system lets the engine reach peak power faster, and it facilitates higher compression flat out which produces more power.

>but its X
>no its Y
>it can't be Y because X
>hurf durrf

>>13981976
>on /o/
>mad about funposting

Why not just go ask what car is gud?

>>13981523
>none of these cars will be sold with a manual transmission
What the fuck is this based on?

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>Not having pull pressure on demand

C'mon Step it Up!

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EFI has been around for a long time.

>let off the gas
>BRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
>ah boost is ready

>>13981976
>and it facilitates higher compression
no it doesn't...

you mean it affects cylinder pressure.
and it doesn't affect cylinder pressure. at least not any more than any other turbo.

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In the US we solved the issue of not having instant power decades ago :)

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>>13982054
JUST BOOST MY SHIT UP

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>>13978206
Alternatively, you could solve the turbo lag issue while saving a ton of weight by removing the turbo.

>>13982030
>having a pump that cannot pressurise the intake manifold with the engine running
Not sure what I'm stepping up to, other than an unnecessary intake restriction.

>>13982137
is that a hemmy?

>>13982187
9.6L of Ferd Powah

>>13982149
>three turbos

Madman!

>>13982585
he must be making 500 amps per square inch the absolute madman

>>13978206
I vote this is pointless unless I can tap into this system to top off my tires, run my air tools, and sound a viral YouTube style train horn.

>>13982585
>>13982585
Look closer...
>I count 4

>>13978206
Everyone else eliminated turbo lag a long time ago.
Two easiest ways are superchargers and displacement.

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>>13982650
>>13982149
>>13982585

>>13981066
That's an Na 4 banger. I see no piping,intercoller etc. All that shit adds weight as well. But I don't give a shit anyway. The day yer civic can beat my ls1 with heads/cam/7psi remote mount then I'll pay attention to you whiny 4 banger pussies. Before you say it can my good friend is a civic fag and at 25psi plus all the supporting mods and tune he can't beat me. Not only is his power band already more peaky and less comfortable to daily I get better mpgs on average. Probably the fastest daylied civic in our area. Even if he gets to where he can finally hang I can just bump my boost and be gone again. We've both spent comparable money and he'll admit mines better in every sports car way he just loves the hatch civic looks.

>>13979011
2 tons are 4400 lbs, unless you're using mentally disabled American short tons.

>>13981258
>Lag is practically irrelevant in the current year, cars have gears.

How do gears have anything to do with turbo lag?

>>13978206
Isn't that basically just a supercharger with a turbo

>>13983611
In your mind, what is a supercharger then?

>>13979253
The circuitry takes up a couple of watts at most. That's basically nothing.

developed by borgwarner not volvo

>>13983261
>uses metric ton
>converts it to lbs
hmm

>>13978687
>volvo is building a huge factory in charleston south carolina

>>13979788
I want that really badly.

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>>13978643
Bait

did HakunaMiata give them the idea?

>>13983612
An electric motor that pressurizes air?

>Volvo blows alittle more air into the manifold as you push the pedal down

hori shit what an innovative revolution!!

>>13983733
It's blowing on the compressor wheel, depending on the pressure and the angle of attack they can get the whole thing moving much quicker.

>>13983682
You and me both.

>>13978629
Turbos have weight too. And you can bore/stroke an engine to give you more displacement from the same block.

>>13979788

I'd buy that even when I hate crossovers.

They did their best to make it look not as tacky or overbloated like the others.

also, apparently they're the last Volvos with 5 cylinder engines available (and those are my fetish).

>>13981070
How about 1240 hp in 1240kg? Agera 1

>>13983612
>>13983729
a compressing device used to increase the density of the cylinder's charge air, thus super-charger.

if it's not compressing engine intake charge air it's not a super-charger.
>tip: tire inflators and shop compressors are not superchargers

>>13978206
There is no replacement for displacement

I can just picture a little boost gauge that builds pressure as you drive ready to release an instant turbo spool, like the boost in arcade racers.

This is a great idea, regenerative braking is awesome.

Wouldn't this have an effect on the bearings lifespan? Over the course of say, 50,000mi it's going to end up spinning faster for longer, but I don't know if its so much more that it'll actually shorten the lifespan

>>13984410
You mean that the idea that 'turbos will last longer because of brief moments of lag during transitional modes will affect the overall lifespan of the bearings negatively or at all', is an ideology you put credibility into?

File: _twincharge2-lg.jpg (83KB, 1024x576px) Image search: [Google]

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>>13978206
VW's Twincharger
This engine is a combination of a roots type blower couple with exhaust gas driven turbocharger ensuring a quick throttle response and power at all engine speeds.

The roots blower on this engine cuts in at approx. 1500rpm and in most situations cuts back out again at 2400rpms and is quite a large size for high efficiency.
At the latest 3500rpm the turbocharger then takes over with sufficient exhaust gases being sent through the manifold. This set up enables a higher compression ratio of 10.0:1 for increased efficiency and better fuel consumption.

>>13984558
>not just blowing the engine itself to make up for the lack of boost until the turbo spools up
why germans, why

>>13978206
This is just something else that is going to break and need constant maintenance.

>>13984558
>tsi
>since 2000fucking5
>volvo acting like they invented the wheel

What's the advantage of this over an "electric turbo"?

Cost? Complexity? Weight?

What happens when you've used all the compressed air in the compression tank?

>>13985534
>What happens when you've used all the compressed air in the compression tank?
The exhaust driven turbocharger takes over, genius.

>>13978206
Turbo lag is only a problem in automatics so are these cars going to be auto?

>>13985610
>Turbo lag is only a problem in automatics
Literally what

>>13985649
Have you never heard of a clutch before?
It is so hard to rev the engine up to 3000rpm before letting go of it man....

>>13985889
>Turbo lag doesn't exist if I drive like I'm on a track.

Lots of people like turbos for the fuel economy. Lag is a real concern if you aren't gunning it.

>>13985908
If you have a turbo charged car for fuel economy you are doing it wrong, in a diesel it does not matter because the turbo kicks in at 1500rpm generally and you are generally sitting above that as long as you are not idling..

>>13985889
Have you never operated a turbocharged vehicle before?
RPM=/=intake pressure

>>13985908
Seriously if you think turbo lag is a problem learn to drive properly and rev match when changing gears. Or maybe get an automatic with this new no turbo lag technology instead of what ever car you have.

>>13985534
you get more air

>>13985610
>engage gear
>lag, boost, shift
>engage next gear
>lag, boost, shift

as opposed to
>depress throttle
>rapid boost response due to torque convertor slippage
>boost all the way to the speed limiter

Laggy autos, am I rite?

>>13985932
>Seriously if you think turbo lag is a problem learn to drive properly and rev match when changing gears.
How the fuck do you think this is going to solve anything? Shifting with a manual transmission has zero load against the engine, so even IF you were upshifting with throttle (for some retarded reason), the turbocharger in question would still be falling out of the boost curve.
If anything, conventional automatics hold consistent boost better, as they can apply a constant load whether stalled up at a standstill, or upshifting.

>>13985949
>Engage gear
>Match RPM to what they will be at once you let the clutch out
>Let clutch out
>No turbo lag
Lrn2 drive am i rite?

>>13985949
Basically this.
>kids thinking turbos are only dependent on engine RPM

>>13986008
Have you never heard of heel and toe driving, are you simple or something?
Fucking americans i swear, this shit is why people in that country actually think autos are better than manuals.

>>13986020
>matching RPM WITH throttle on an upshift
Didn't realise your gears got shorter as you changed up.

>>13986034
>Have you never heard of heel and toe driving, are you simple or something?
Relevant when you're down changing, irrelevant when you're trying to spool a turbocharger without engine load.
>Fucking americans i swear
Implying, but you seem to have similar manual transmission knowledge to the laymen American.

>>13986034
>heel/toe driving
>having anything to do with maintaining load
My money's still on you having never operated a turbocharged vehicle.

How about Mazda's new turbo setup?

>At low rpms (below 1620 rpm), the volume of the exhaust ports is reduced by closing a series of valves located just before the turbine that drives the turbocharger. This reduces interference between exhaust pulses and maximizes the energy of each pulse to obtain a high turbine driving force. At higher rpms there is sufficient energy in the exhaust flow and the valves open, allowing the turbine to be driven by a steady flow of exhaust gases as in a traditional turbocharger.

Basically routing exhaust through smaller diameter pipes to increase pressure at low rpm and back to normal at higher rpm. Its not as effective as a compressed air tank, but seems simpler and and no gap between refilling the tank.

>>13978206
>reciprocating pump(s)
>driving pleasure in diesel volvo
>swedish cars
>diesel

>>13985932
>He doesn't have paddle shifters

High end modern automatics shift faster and more smoothly than any manual transmission. Look, I get that the vast majority of /o/ has never used a fucking modern sports car, and probably never will, but the same rules do not apply to them as the ones that apply to your 3000 dollar shitbox that you stripped the rear seats out of.

Just because your grandmother's towncar has a slushbox doesn't mean that all automatics are shit.

So it's clear from this thread that almost nobody on here knows what turbo lag is. I mean, I know /o/ is stupid, but holy fuck.

>>13986473
>High end modern automatics shift faster and more smoothly than any manual transmission.
Redundant, when a conventional hydraulic auto maintains 100% load when shifting anyway.

>>13986594
This, and how turbochargers work.
>just clutch in and rev it lol
>no tarbo lag lol

>>13986672
I'm just going to tell myself that nobody here actually drives a turbocharged car and they're just making shit up to sound like they know things.

>>13986859
Corolla is best car ever made, bitch

>>13986864
Does your corolla have a body kit and neon underlighting?

File: Lincoln Mustang.jpg (732KB, 1209x803px) Image search: [Google]

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>>13982149
this isn't bait but aren't those alternators?

>>13986939
It's called shitposting.

>>13986859
> they're just making shit up to sound like they know things.
Good English, but that sounds like this post;
>>13985889

>>13986020
Suddenly, all over the world, stocks began to plummet. The demand for boost controllers, transbrakes, two-step rev limiters and nitrous had fallen overnight.
Anon had discovered the truth.
"Just rev it," he said.
"We've been lied to the whole time. Engines free-revving produce the same amount of exhaust flow as engines under load."

In Based Anon We Trust.

"We've wasted millions," cried Volvo Chief of Development Hans MyDickersbig.
"I thought all this time turbo lag was a thing. If only Based Anon had taught me how to drive..."

>>13986859
Can we settle on a very high percentage?
>>13986864
I can't argue with that

>>13986992
Fucking lol. That anon isn't particularly smert

>>13986939
>Lincoln Mustang
>Not Mark 9

>>13986979
>>13987004
There seems to be two kinds of stupid in this thread.

1. The people who think that an electric air compressor can generate enough air to significantly lower the boost threshold and that it won't break physics.

2. The people who confuse boost threshold with turbo lag and have no idea that there is a delay from tip in to boost even at high rpms.

I guess I shouldn't be surprised.

>>13986623
You do get finer control over things with paddles though. You just have to be in tune with your car for it to be notably better than the same transmission operating in full auto mode. If you aren't familiar with the car, or just not a very good driver in general, you won't get any benefit from using paddles. It's still going to be better than a manual.

I mostly notice the paddles being better when accelerating out of corners. In auto it likes to shift at weird times, but with paddles you can force it to stay in a spot and get a harder kick. You can also force a downshift when flooring it to get harder acceleration because of the increased torque. Every auto I've ever driven has a brief delay before downshifting. There isn't really anything you can do about that, since downshifting that soon or even beforehand, requires advance knowledge of intentions.

>>13987388
No argument here. Although I thought the compressor was purely for "lag's" sake, and not "threshold". Missed alot of the dumbassery earlier in the thread, but got here in time for retarded anon thinking the way to solve turbo lag is free reving.
>>13987626
I understand the benefit of manuals, autos and "automated manuals". What I'm saying, if you missed it, is the faster shift times of a "paddle shifter" (presuming you're referring to an automated manual or DCT) have no benefit on turbo lag throughout acceleration when a conventional slushbox auto (regardless of what shifter mechanism it uses) maintains constant load, and therefore maximum turbocharger output with the exception of threshold.

>>13987388
No it's just one idiot who can't read graphs.

>>13987768
Which idiot?

Kek desu senpai

>>13987745
>I understand the benefit of manuals, autos and "automated manuals". What I'm saying, if you missed it, is the faster shift times of a "paddle shifter" (presuming you're referring to an automated manual or DCT) have no benefit on turbo lag throughout acceleration when a conventional slushbox auto (regardless of what shifter mechanism it uses) maintains constant load, and therefore maximum turbocharger output with the exception of threshold.

Ah. My mistake.

I thought you were talking about power to the wheels. Manuals and shitty autos have far higher shift times, so you lose power to the wheels. Good autos have near instant shifts.

How is this not just a more complex belt driven Turbo

>>13988606
Is this a legit question? Want to think about it for more than 2 seconds before replying again?

>>13978206
Why not just attach the electric motor directly to the turbo to spool it from zero? Wouldn't that help make things less complex by eliminating the unit to hold the pressurized air?

>>13988632
Would need a separate high voltage battery to spin that fast.
There are electric compressors being developed that do that though.

>>13988632
because that would make too much sense

>>13981453
it could be dumping into a smaller secondary turbine instead of into the exhaust

>>13978206
So all I have to do is mount a fridge compressor and reservoir on my engine and I have no lag?

>>13989319
You think that huh?

>>13989319
>fridge compressor
You can get rid of your intercooler too if you do that.

>>13986034
Iknorite? Just heel and toe when you're up shifting in a straight and you'll gain maximum speed! Gotta slow down to go fast right!?