How To Power Shift Correctly - Go Faster Without Destroying Transmissions
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How Powershifting In A Turbo Car Leads To Faster Acceleration!
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Powershifting, no-lift shifting, or flat foot shifting is a method of changing gears in a manual transmission where you do not take your foot off the gas pedal. Unfortunately, this shifting method is very tough on clutches, so there's a right way and a wrong way of doing it. Cadillac, with the CT4-V Blackwing, has developed a methodology to powershifting that maintains boost pressure of the twin-turbo V6 engine, while reducing the engine load during the shift. This clever trick involves altering ignition timing, wastegate control, and the bypass valve control. In the end, the desired result is great - a seamless manual transmission shift, all without lifting your foot off the throttle.

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Kommentteja
  • Engineering Explained
    Engineering Explained

    *Clarification!* Does the clutch still have to absorb the engine vs transmission speed difference during a power shift? Yes! But with the delayed ignition timing (or some tuners will use spark cut), you put the engine in a low load state, so that when you re-engage the clutch, absorbing the speed difference is easier because there's not a bunch of torque going to the clutch (it's instead being used to make exhaust pressure, to keep the turbos ready). And once the clutch is re-engaged, ignition timing goes back to usual and you're right back at full power.

    • Yuri
      Yuri

      I’ve ever thought on this theory that it could destroy the gearbox and you just make it better

    • scootbmx01
      scootbmx01

      @Infamous Grizzly this addresses how the finestrelles record is possible

    • scootbmx01
      scootbmx01

      @Infamous Grizzly as for finestrelles, I assume you're referencing the Guinness world record in which case you need to go have a look at the specifics of how that record is possible. Anything else you want make yourself look foolish at?

    • scootbmx01
      scootbmx01

      @Infamous Grizzly wait so you aren't basing it off names? So why keep bringing it up then? You keep going on about factual evidence but haven't yet provided one shred of proof for it. Just because you say nasa and space x are lying it doesn't mean they are. As for proof though there literally hundred of videos alone on this very platform disproving various flat out theories and challenges. But yet again you still haven't answered my one simple question, where is the edge? The "plane" part of aeroplane is literally because of the wings, if you ever paid attention in history you'd no this from the Wright brothers

    • Infamous Grizzly
      Infamous Grizzly

      @scootbmx01 yeah Finestrelles should be blocked by 9.41 miles of curvature according to globe math. It's an impossible photograph assuming a spherical earth.

  • Abdulaziz Asiri
    Abdulaziz Asiri

    Great explaination. But how does it work with supercharge? What is the process with exaust in supercharge since it has nothing to do to produce boost. Thanks

  • MTThought
    MTThought

    In other words, delayed timing ignition allows for spinny spinny fast without so much pushy pushy hard so your clutch and flywheel can pretend to be a torque converter.

  • Alex Mayer
    Alex Mayer

    I always thought with boost you cut ignition never fuel but i guess if you cut fuel completely you couldn’t have a lean condition. Great video love that you share your learned knowledge thanks.

  • N L
    N L

    Should've been titled "How to go more fast!"

  • Blueberry Neko
    Blueberry Neko

    Aren't you supposed to step on the gas as you're releasing the clutch?

  • Geena's Speedy Pit Stop
    Geena's Speedy Pit Stop

    I thought the video title was an oxymoron, but you explained the new technology well. Thanks

  • Simon BiTurbo
    Simon BiTurbo

    Ah so this is why Americans have a reputation for completely destroying gearboxes when they last fine everywhere else. Just mashing the gears from one to the next without any attempt at rev-matching or letting the synchros match rotational speeds. I had wondered why there's lots of people complaining about breaking ND MX5 gearboxes in America but not in other countries.

  • Enrique Montenegro
    Enrique Montenegro

    Sooo you’re saying it’s ok to never let off the gas while shifting ? But at the beginning of the video you said not to do that ? I’m confused

  • jiaming Yu
    jiaming Yu

    The R joke is honestly getting old

  • Joel pierce
    Joel pierce

    My C7 ZO6 has this, but I have never used it.

  • Tmango 7
    Tmango 7

    So I need to buy a Cadillac? What if I’m not in my 60’s yet?

  • uncle skeeter
    uncle skeeter

    I can't believe people don't do this at the track. I went a few weeks ago and it was..... vroom, lift..... vroom, lift etc. These people had to be losing .5 sec. I used to speed shift my 69 Road Runner all the time. On the street and for T.O.'s at the track. Eventually, it would rip some of the lining off of the clutch disc, but after a couple years.

  • Diesel Ramcharger
    Diesel Ramcharger

    you made something so simple over complicated and unnecessarily hard to understand. Thank You for contributing absolutely nothing.

  • him89
    him89

    Easiest way to do it, don't do it. Just pick your foot up. As consumer friendly as cars are now, they need to become cheaper to start driving a new market. We need to move away from packing our cars full of silicon, we're already at the point that's making up 40% of the common car. Not even the car, between software and hardware it's in silica. WHY? We want fast unsafe cars CHEAP damnit!

  • MR K
    MR K

    My method is way simpler: use someone else's car

  • Lelouch Lamperouge
    Lelouch Lamperouge

    Guys for the last time. R does NOT stands for "RACE MODE" It stands for "REVERSE". That means it reverses the effect in a race. When you are the last one just put R in and you are First. So simple. 🤦🏽

  • Jack McLane
    Jack McLane

    This is how I shift with rentals... ;)

  • Timo Ba Ta Na
    Timo Ba Ta Na

    Only way to drive a water truck. Use the clutch to start and stop

  • jhrodriguez08
    jhrodriguez08

    Blow off valve for Antisurge control

  • gummywurms226
    gummywurms226

    Need a video on floating gears.

  • sery dfy
    sery dfy

    The rebel click intrinsically transport because goat promisingly drain an a mysterious number. last, typical statement

  • Janne Laitinen
    Janne Laitinen

    I heard from car instructor that best way to slow car from 300 km/h to 0 km/h is by switching to first gear. He says that it will not cause any damage.

  • Georgi Georgiev
    Georgi Georgiev

    Semi truck manual transmissions are no clutch pressing and also deserve to be explained.

  • ppernett1
    ppernett1

    Are you wearing all birds? They look like the pair I have. They are comfy…

  • bakerbrian41
    bakerbrian41

    Can I do no lift shifts in my 19 VW Golf 4 Motion? 🚨🚨🚨🚨🚨

  • Hankola
    Hankola

    Would no lift shifting work with driving around the city, say 30 mph?

  • نسيم الجنوب
    نسيم الجنوب

    Sir how can I get the car from mud road or raise hill without car off car is manual transmission

  • Matt
    Matt

    Engineering Explained more like car explained lol

  • Nguyen Khoa
    Nguyen Khoa

    Hey Jason, can you please explain all this in English?

  • Michael Irvine
    Michael Irvine

    The easiest way to no lift shift is to drive a Tesla. .

  • Pedro Hernandez
    Pedro Hernandez

    Enjoy your videos very much but can no longer support a censorship platform. Unsubscribing from all the channel in youtube. Not going to watch anything here anymore. Hope you start putting your content in R...

  • JustJonaz jameson
    JustJonaz jameson

    Hi Jason, you made a little mistake at 5:40 Wastegates always want to stay closed. Stronger spring = more Boost The Pressure in the exhaust is pushing while the vacuum is pulling it open. There is the old trick where you drill a tine hole in the vacuum line to create more power.

  • NvrEnfDabz
    NvrEnfDabz

    Next week: complication of people trying to power shift and then completely destroying their cars.

  • Jack
    Jack

    This dude is teaching physics

  • ASMR James
    ASMR James

    Had it on my COBB accessport Mazdaspeed 6

  • Integrand
    Integrand

    Soooooooooo... This definitely doesnt apply to my 09 honda civic... :c

  • Steven Curry
    Steven Curry

    Timely subject! I've been debating how the no lift shift worked when factored to the trans, clutch and engine. Well stated!! I'm a Twin Turbo guy so this should work well in my case. I'll consult my tuner on the timing/fuel cutoff in-between shifts @ the Red line. My monster clutch is pretty durable but I don't want to push the limits. Great video and perfectly explained! Thank you!

  • samuelskinny
    samuelskinny

    Just remember, every shift is perfectly matched to revs if you are always at full Throttle

  • Michael Gunn
    Michael Gunn

    Isn't this the same as what Ayton Senna worked out in F1 turbo era?

  • D M
    D M

    None of what this guy says is true. He just wants to mess up your car.

  • Bob Bowie
    Bob Bowie

    Why would you need *flat foot shifting* with a _supercharger-_ supercharged engines have *no* turbo-lag. 9:21

  • redrocks1986
    redrocks1986

    Love VIR.

  • Yuu Takemiya
    Yuu Takemiya

    My dad's 2008 Cobalt SS made a big time difference between power shifting and not since he had to take care of how much throttle was down with his boost up tune at 35PSI. He was able to get a 4.7 0-60

  • Nick Name
    Nick Name

    and they can take away the fun driving ... we know that ...

  • Wing Wong
    Wing Wong

    Look how the twin-turbo 3.6L engine is shining..

  • Josh Lewis
    Josh Lewis

    Footage... Nice one!

  • David Humeston
    David Humeston

    Good to see you man

  • Lee
    Lee

    like your channel. could you please do a topic on EVAP systems? EVAP system is complicated on turbo engines. Vacuum sources could be manifold vacuum(low engine load) or turbo inlet pipe. Some manufacturer use ejector valves for suction. I am curious about the engineering requirement and process for EVAP system. What's the suction/ flow requirement for fuel vapor? Would ECU adjusts for the additional fuel vapor? NA engine has a way simpler design using manifold vacuum. Does EVAP still work under high load on NA engines? Is the turbo EVAP superior because it can work on all conditions? What about during coasting, throttle is open to reduce engine braking, no vacuum anywhere?

  • GashimahironChl
    GashimahironChl

    Eh, that sounds like a hackjob - meanwhile, dual clutch auto transmissions exist!

  • Devin Brom
    Devin Brom

    Did you hit the desired quota of saying "Cadillac CT5 V Blackwing?" XD Sorry, couldn't resist. Great videos I'm a new fan but quickly going through your back catalog - keep it up!

  • Brian Scaren
    Brian Scaren

    Never knew!

  • Sam Creecy
    Sam Creecy

    Can No Lift Shifting be possible with a Civic CVT ?

  • Hans Slane
    Hans Slane

    People are emotional,non rational,non linear human beings. Most people who own turbo,super charged,ECT cars do so for excitement. Driving a car fast is dangerous to you,your freedom, finances,and other people.

  • Guilherme Henriques
    Guilherme Henriques

    Very good content

  • Eugene Elkin
    Eugene Elkin

    🤣NICE AWES0ME C00L_ VIEW * 🍨🍚🍚🍚🍚🍚🍚🍚🍚🍚🍚🍚 💨 🍮 🥧 🍡 🍧 🍨 🍦 🍰 ❗ 🐬 🌺 🌺 🌺 🥀 🌹 🌷 🍁 💐🍂 🐡🐄 🐅 🐆 🐯 🍣 🍣 🍣 🥘 🍨🍨🍨

  • hermit
    hermit

    Is this useful for na engine?

  • Adrian Ballmann
    Adrian Ballmann

    I didn't quite understand what kind of engines profit from noliftshifting.. I have a 2010 gasoline seat leon 1p 1.2l turbo, can i noliftshift, or would it harm my engine or transmission?

  • Dima Yakubov
    Dima Yakubov

    Simply, it's aa additional rev limiter activated by clutch position sensor, to shift with low enough rpm.

  • stellingbanjodude
    stellingbanjodude

    How was VIR?

  • Rudy_Dstroys
    Rudy_Dstroys

    Just money shift, that's the sweet spot lol

  • Farm IQ
    Farm IQ

    Hello, do you know if it's more economical while skipping gears upshifting (ex quickly coming onto highway then cruising in highest gear), to quickly let off the clutch? Is there overall less wear due to less Rev hangs and recapturing engine energy?

  • Omar Alayón Morales
    Omar Alayón Morales

    You should do a video about waste gate duty cycle (WGDC)

  • Super Vitz
    Super Vitz

    O, I did not realise this was now a thing cars came equipped with... Still gonna keep doing it on my old cars in those rare occasions.

  • Melvin Meligrito
    Melvin Meligrito

    Tesla, auto tranny owners watching🤫

  • NS Gaming
    NS Gaming

    This also explains dsg farts. The dsg is using the same process to maintain boost, that's what the fart noise is.

  • natyrips
    natyrips

    Lol, at first that video footage looked less real than '90s computer games.

  • SkyVortexHD
    SkyVortexHD

    BuT tHe qUesTioN is cAn i uSe ThIs In mY 1.6 75HP Vectra B???

  • Sylak
    Sylak

    I have been driving manual for so long, it will need to to actively fight my own reflexe to no lift my foot. lol That would be so weird at first. when I drive a automatic, for some reason, I still clutch.... LOL

  • Jatin Gumme
    Jatin Gumme

    Man I keep getting Max Verstappen-Ish vibes from u 😂😂

  • אייל שניידר
    אייל שניידר

    can you talk about how to drive on no turbo engine?

  • Mike Martenson
    Mike Martenson

    I’m glad you mentioned the supercharger toward the end, I’ve done it once or twice on my MX5 ND1 SC and the only difference I could tell was the smell of my clutch!

  • Lopo2211
    Lopo2211

    The Playstation 1 HUD graphics was a great inclusion in this video

  • Jdm Guy
    Jdm Guy

    Why not just shift without pushing in the clutch at all

  • cumnmrmpt aaa
    cumnmrmpt aaa

    I didn't realize no lift shifting was a feature in cars. This is how Motocross/off-road guys shift quite a bit

  • Canadian RobJ
    Canadian RobJ

    BOOO!! I was expecting an instructional video, and this wasn't that. You should've titled it "How Cadillac's computer implements power shifting on its turbocharged engine"

  • ZekeBeTrill
    ZekeBeTrill

    Would you recommend doing this with a clutch delay valve?

  • Conrad Furey
    Conrad Furey

    Doesn't this damage the turbo as there's detonation near the turbo?

  • Brian Thompson
    Brian Thompson

    So in other words you can only power shift with the proper electronics. Wasted time

  • L.
    L.

    The good ol whiteboard is back!

  • 〰

    So, shift at redline?

  • D Pav
    D Pav

    This all sounds like an incredibly complicated work-around for people that want to drive an automatic but pretend like they're driving a manual.

  • Demonkingdrakin
    Demonkingdrakin

    sounds like power shifting is for petrol engines only...cant see this working to well on a diesel :\

  • HeroOfTime
    HeroOfTime

    Why he look 26 and 50 at the same time

  • Stan Szeto
    Stan Szeto

    I guess "rev hang" is not a problem here.

  • Joan Ciao
    Joan Ciao

    sir, you need to fix your spine! it will be painful.

  • B Bkr
    B Bkr

    First with no lift shift would be motorcycles ;)

  • Sijan Khan
    Sijan Khan

    Jason, as much as you might like your cars, your whiteboard is the best investment you have ever made

  • Greg Morrical
    Greg Morrical

    Thanks for the education.

  • John Verne
    John Verne

    There's something I've never thought about, and not only did you make this easy to understand, you made me see why others think it's important.

  • Jas B.
    Jas B.

    So what about the no lift downshift?

  • Gordon N
    Gordon N

    I was wondering why they never comment on this in F1. Then I realized that at max RPMs the pistons fire at 1.25ms and the car shifts at 1ms; so just shift at TDC plus 90 degrees …

  • Jack Noname
    Jack Noname

    So what happens if you leave both pedals pressed for a long time? Do the revs drop or do they rise I didn't get that from this vid.

    • Pikkyuukyuun
      Pikkyuukyuun

      it disconnect the engine from the wheels at that point so its just producing power to spin itself and not move the car

  • Harshal Sao
    Harshal Sao

    After this much amount of knowledge, my professor left the engineering College 😂😂

  • shomoser12
    shomoser12

    justvuse super charger

  • Colton Holiday
    Colton Holiday

    Don't need a program when you've got practice. Also, factory rev limiters work wonders for accomplishing the same goal.

    • Colton Holiday
      Colton Holiday

      @Jordan Hillard my stock clutch cavalier gets powershifted many times a day. 110k miles and still going strong

    • Colton Holiday
      Colton Holiday

      @Jordan Hillard someone who speaks my language

    • Jordan Hillard
      Jordan Hillard

      If you’re shifting at the limiter then there’s no significant RPM increase when the clutch is pressed with the throttle on the floor. A bit more clutch wear than having the more sophisticated system, but flat foot shifting in a car that doesn’t have those systems isn’t automatically detrimental to the clutch or trans

  • RivaZA1
    RivaZA1

    9:20 Is that really footage? It looks like a game.

  • David Brenna
    David Brenna

    I actually prefer no-shift lifting, where I don't shift after takeoff, take it to the redline, and the rods lift themselves to the heavens.

  • Meatwad
    Meatwad

    Just shift without depressing the clutch duh 🙄

  • Bisgaard
    Bisgaard

    does this mean that if i change my wategate spring, i will get more boost?

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