Thank you for helping us understand complex systems and why they're used in the first place!

You're a maaaad man Yayson!! I'm watching you since the very first day of my mechanical engineering college degree here in Brazil. You totally deserve the best!!

Happy Birthday EE and congrats Jason!!!

Been here since the smaller whiteboard.

Happy Birthday EE🎂 And a big congratulations to Yayson!!! Just love your videos.... Lots of support from India☺

My passengers get jostled around like a friggin washing machine

@pete smyth quality comment 😂😂

And old people like my dad and mom think I don't stick very well because of jerkyness. And my mom thinks my dad is better I am and I think I am way better than him.

if you want to avoid jerkiness, use more clutch. But to avoid burning through it you should be able to time correctly the gear, soft releasing of the clutch and rpm, and it'll go smooth as hot butter.

@@OscarSabaterCruz You dont need to use more clutch to shift smoothly. It depends on what you'r engine rpm's are when you release the clutch. You can shift basically shift smoother than most automatics if you know how. And without sliding the clutch. And there is no need to change gears like driving a freaking race car. Rev hang can be compensated with slower shifting. Its not like you lose any time shifting slightly slower in normal driving. All cars are different to drive and its only a matter of getting adapted to the vehicle you're driving.

Oh geez 😆

I'll bet.

Was it a 76 Rabbit? Mine was.

Might be because of the increased fuel needed to start and keep engines running in winter... could also be a leaky injector. Get your engine checked out.

Drive by wire?

All I keep imagining, is a reverend throttling a dead body, and being sentenced to hang.

Never met a ten year old dentist before. Well done

@@Tom_Hadler beat me to it. I'd wager he's probably pretty good at understanding most things if he's a ten year old dentist.

​@@Tom_HadlerJudging by his login, he's from India. Everything's possible there 🤐

@@dehypnotizerz The founders of the internet started it in the hopes of making the world a better place to live. They forgot to account for your existence.

We use different throttle cams on our motorcycles to change this.

​@@petebusch9069ya I'm really surprised a channel of this quality didn't mention that throttle cams are almost never actually just round and are almost always oval or egg shaped for this exact reason

Probably has a carburetor as well, doesn't it? Would be interested to see these curves of lean/rich mixture when closing or opening the throttle valve of a carburetor-engine :)

HECKproductions a Cushman possibly. Slowest scooter ever developed.

My scooter had cable operated throttle. It snapped @120km/h and stayed wide open when I had to brake for a corner. I'm alive only because I reacted fast and hit the engine kill switch

@@BoliMeKurac Learn to check cables! I had a drywall jack fall on my head because of a faulty cable.

same, but i dont even have a car

Well EFI does help. I can't say the same about Electronics throttle body

@@atarvhegde5210 All these things "help", I just wonder how much. 1-5-10 mpg. Something like a mid 70's slant 6, remade with all modern tolerances and materials comes to mind. That thing got nearly 20 mpg at 3.7L,,,, just at 125 HP, but it was a loose motor.

Eric man , you gotta come and live in the 21st century man

@@jeevanrohtak5126 Jeevan man, you gotta pay attention to what I said. I shall explain it to you, since you seemed to have missed it. I am curious how much fuel efficiency is in the electronics, vs the upgrades machining technology and materials. So, in short, pay attention to what I was saying, and not what ever thought just possessed you to type what you did, man.

There would be no way to make it streetable unless it had a much milder camshaft and smaller intake ports. Also, today's emissions standards almost require a dry intake manifold. That's why no throttle body fuel injection. It wets the intake just like a carb does.

He had an s2000 which he supercharged (and then sold for the mx-5) and a integra he tried a small series of build vids on, but it got stolen or something.

With modern cars, tuning has become obsolete, impossible to do and unnecessary. All "tuning" variables are controlled by the Engine Control Management computer via sensors and electric/hydraulic actuators. The ECM senses all properties of the air going in, the exhaust coming out and controls all aspects of combustion through throttle, spark, fuel and valve timings together with auto trans behaviour (if equipped). This makes tuning a modern engine impossible as there is nothing to tune. Optimal operation is maintained on the fly, hundreds of times/sec and compensates for all external variables including changes in the engine as it ages and its internals get worn and fouled up. The only way to alter this behaviour is to re-map the ECM's memory using a proprietary, car make specific, ECM programmer, access to which is tightly regulated and controlled and the cost of which is very expensive. As for older cars, he would most likely struggle and fail. Being an experienced mechanic and a knowledgeable engineer are two completely different professions comprising of very different sets of skills and abilities.

@@PushyPawn What fantasy world do you live in? have you ever heard of flash tuning? it exists for pretty much everything out there.

@@PushyPawn In current times, "tuning" is a word that refers to ECM/TCM recalibration via flashing the memory. We aren't talking about the primitive engines of yore.

@@CalculatedRiskAK right lmao? like this isn't obvious information already/even inconsistent with the video, having "modern" in the title

thats really interesting, thanks for sharing!

I think that most have that.

@@aitorbleda8267 Yes; I was surprised he left that detail out. I was all but shouting at the screen over it.

I believe Porsche used that in their older (?) cars. So that the driver gets a more aggressive feel when applying the accelerator.

Honestly I haven't seen many that don't have a cammed lever.

B4 2.0L?

@@toottootfuckshit8755 B4 1.9 Turbo Diesel

I have the 2.0

F

The people are supposed to meet, not the cars! Sorry to hear about your 80. I had an abusive relationship with a 4kq.

Cus it's fun

Bro my exact thoughts as I clicked on this

W

I dont like my carb so im gettin a throttle body injector

I don’t know why I’m watching this, I can’t even afford a car.

welcome to club. im still driving 1977 carb car with only electronic device being radio. ill take old car everyday over these pieces of junks they call cars nowadays. imo theyre more like robots. you cant even do what you want, emissions emissions emissions everywhere

I know, right? I kept my clydesdales and carts, and I never experience rev hang!

Ultil they are so old they fall to pieces.

Yea stay in a cave

This isn't a new problem. 1975 VW Rabbit had major rev hang. It had an "anti-backfire valve" that held the throttle open. It was pretty awful. Without the valve, it backfired EVERY shift.

3:34 SUPER CLEAN

sUPeR ClEaN

Ikr. It's quite ironic that 90% of the cars in sale are crossovers. Because they are sooo eco-friendly

Yeah but it’s understandable I mean at least they are trying new technology to help save the planet

@@jupitersailing6911 I think it does not make any difference, whether you want to decrease emissions or not, it will not destroy a planet

and that's why we are going to shift to electric drive sooner or later, subsidized or not

Yes - and this is nice way to sell it to the public as: there is plenty more reason of course. For instance it is much cheaper and easier to have an additional cable in the harnees to to the engine, compared to the good old wire-able solutiion. And e-gas usually takes its data from a data-matrix in the cpu - data based on the manufactures measurements during vehicle developme'nt. But some of theses e-gas just seem to be bad quality, cheap plastic etc. and often don't last very long. And the production, distribution and installation of replacement parts is as well effort, harming the environment.

Windbooster throttle controllers

I’m doing that right now!

Lol on my lunch break too

Me too lol

Oh my lord I cant believe I'm not the only one

Well that's because you are LOL

Compared to my s10 or 10 speed big trucks my civic si is not as smooth due to this I'm not as consistent

My vehicle has a mechanical throttle, but I have lots of rev hang. I bet it's using the idle air valve to accomplish it.

@@nerdyengineer7943 me too. My 04 gto doesn’t have rev hang but the initial grab into 1st gear has always been the most finicky I’ve ever felt in a car. I had a 2001 cavalier z24 manual 5 speed (obvi with fwd and electronic throttle) and for some reason engaging first in that car was way simpler than the gto. Any other gear from second to 6th is completely normal (tho a bit slow due to the weak clutch/slave from the factory) but something about 1st gear in it with the drive by wire creates the most odd feeling 1st gear engagement

@@davidpistek6241 lol Im in the same bag. My s10 extreme drops the rpm’s fast so I can shift a lot faster. My type r…. The rims take forever to drop. I don’t go hard in the car but when I do I might bang gears. 6000+ rpm’s can’t be good for my clutch. Smells stronger than any car I’ve had. My s10 or Camaro ss have never smelled like burnt clutch while banging gears.

My 08 Ford expedition with drive-by-wire 1.4 low it changes the throttle input so if you bounce on the throttle it won't be jerky and full it changes the throttle input so if you bounce on the throttle it won't be jerky in low range four-wheel drive smooth

Thanks for sharing, I have an Impreza from the same year and this makes me regret getting the cvt version less.

Yep. I just spent the past handful of months learning that the hard way, and then this video comes out. I learned to drive on a throttle cable - and when I got a newer manual it took me forever to drive it smoothly... and I have to wait sooo looong between gears. Yes yes fuel economy but I WANNA DRIVE

yep quicker, more difficult clutch jobs.

I just thought 5 years off the road had just made me rusty

When u shift up for example from 2nd gear to 3rd gear do not fully release accelator paddel try to keep u r car in 1500rpm when shifting up u r gear .. in this case ur car engine will be in motion and u r car will not jerk by releasing cluch

I was thinking iam shifting my car wrong all this time lol

*Skynet sees you*

It ain't the driver. With antilock brakes, traction control and electronic throttles, the computer's in charge. Don't get me wrong: that stuff works amazingly well most of the time, but I do find that the traction control especially on occasion will cut the throttle back to nothing at the worst possible time.

That wont be for long unfortunately

@@snowysysadmin59 Mine will never leave its body

I managed to get a 2012 Chevy Sonic with a 5 speed Manuel and I barely feel a jerk.

Ford just announced a new manual (the bronco) not that long ago hopefully this means they come back if it’s successful

@paul. Here's hoping

If you've driven older cars or a different model that drives properly then coming to this will frustrate you a lot.

I had the same exact thing happen to me in the Scion tC community. Everyone told me that I was either shifting wrong or Needed to get a lightweight flywheel 🤦‍♂️ I just wanted someone who could tune it out

Evo X also and first time I experienced it as well. Wondering if it can be tuned out during the performance tuning process.

Thought no one's gonna notice that LOL

Someone’s watching Chris fix videos 😉

bahahaha

Got that right. I want my car to jerk left when I stomp on the gas, and jerk right just as fast when I let off. A motor should decelerate just as fast as it revs up...

I agree. Some modern manuals will prevent the engine from stalling or even restart automatically. Enough. Make manuals actually manual.

Right? Idgaf about emissions on my weekend car, I just want it to feel like a real car. Not like these babysitter cars that have 100 different electronic systems on them (like ESC) making everything feel numb and dull.

They should keep it electronic for automatics because of the listed advantages (especially as the sensors/computers get more complex they can boost efficiency) whereas manual should be a simpler mechanical system the way people understand (at the cost of some engine-level controls that are only possible with the computer system anyways) Plus someday there's gonna be a significant split to self driving cars where there is no human-shifting or "pedal feeling" anyways

Gainz plz to be fair they have some advantages for performance too - humans only have so many limbs but the computer can control/monitor hundreds of points, but like he said it's up to how the computers are tuned/configured - most consumer cars right now are just meant for a smooth efficient ride... they should give more options to have either manual or power/control-tuned systems (interestingly, Tesla cars have some of this: because the motor is entirely electronic they can accurately control stuff like how much power is pumped into it at different speeds - apparently destroys your efficiency but gives crazy acceleration especially at low speeds ) Definitely need more modern cars that keep the "fun manual" experience one way or another though :/

Haha, the Crosstrek isn't exactly a great representation of a fun to drive vehicle, but it's an excellent car. I'm happy with the manual.

Crosstrek...the ultimate enthusiast driving vehicle.

I have a manual Honda Fit, and while I'm not thrilled with the shifting experience, I wasn't expecting much- it's an econobox, after all. Even with the complaints, though, it's slightly more fun to drive a manual Fit than a CVT, and more important to me is the fact that any extra physical engagement helps keep me that much more alert.

I feel the same way. I despise my Honda HR-V because of it. But now I can be at peace with it. But the first chance I get to burn it with fire... errr I mean sell it and get something better, I will

Realized with many cars with rev hang that if you lift off the gas pedal before pressing the clutch it usually works much better. Completely counter intuitive but I tried this on many cars and it seems to work. Of course for race starts it doesn't work and shifting is awful 😊

he should make one big video about carburators. people these days are not familiar with carburators at all. with carburators once you let off throttle, the vactium starts sucking alot of fuel thru idle jet, and its massive amount that it sucks there. this was on old carbs so with old carbs you saved fuel when you went to neutral when letting off the throttle because it sucks tons of fuel when throttle is closed and rpms are over idling rpms. now newer carbs in the end had a valve that closed idle jet channel when rpms were over some certain rpms and throttle was fully closed. it opened back up if you press throttle or rpms droped below this certain rpm, but even this sort of system richens af ratio when coming off the throttle cuz it takes time to close that valve. but it did improve fuel consumption. now carb system itself always has problem that when you press on the accelerator the mixture is very lean for a moment, its that much that engine actually might want to shut off. this is mostly because some channels little bit flow down so the fuel isnt being sucked instantly and it takes slight time to suck them back up. to overcome this very lean mixture, all of the carbs (not including small scooter and chain saw carb cause their engine size is so small that theres no need for this thing) have a thing called accelerator pump which straight up pumps fuel into the intake while your pressing the throttle. full throttle press gives you about 10ml of fuel in the intake (this amount is taken from 1.5l inline 4 engine). now this fixes the problem of lean side, but it actually richens mixture alot so again you have bad emissions, so mixture with tip in and tip out is very rivh. now this accelerator pump is very useful for cold starting. you pump certain amount of fuel into the engine, and my car has started instantly even with -30degrees. something injectors never achieve cause they need first 2 rotations to get pressure up in fuel pump. carbs have, and always will have worse emissions compared to injection.

​@@matufujiwara7493 I live in Puerto Rico back on the 80's and we let our cars in 2nd or third gear going down the mountains to preventing boiling the brake fluid b y over heating the brake caliper going down hill for 10 minutes straight. When throttle body is close, it can't take more fuel than the idle jet will allow because there is a size restriction that won't allow more fuel trough the passage. therefore It will use no more fuel than what it will use for idle.

the software throttle is also a pain for hill starts with cold engine (stickshift 2011 outback)

This is a lot of cars, the EGR feeds back into the intake and the idle-bypass will be open during liftoff so lots of rev hang. Its the same bypass that makes your engine idle high in cold starts.

They fixed this in the new wrx

My SF Forester has the most obvious hang of any car I've owned, it got more pronounced when I cleaned out the intake and Idle air solenoid, I thought I may have busted something at first.

I drove two Subaru's and to my knowledge, neither of them had it. Both were standard and one was an Impreza and the other one was a WRX. I have a Honda Civic Si Coupe now and that car has massive rev hang. I haven't experienced it in a Subaru yet to my knowledge but I know Honda cars have it in some of them. It's really noticeable in mine if you look at the rpm's closely when you're shifting the gears.

Looking for this!

Chrisfix has entered the building...

It’s not a grocery getter, it’s real world used.

@@nopleaseno2515 I think you might have missed the joke. Have a look at the fragment in the video. Jason had left a message there. At 4:09

@@Conservator. oh yes you’re correct. Guess the joke wasn’t funny.

SAME!

LOL did you pay attention in that day?

@@the_kombinator Absolutely not. This is all making sense now.

You know where he learned this stuff?

@@kyleklassen3660 At a Holiday Inn Express?

There was zero rev hang on my RX-8

Jake TheGardenSnake i have ridden newer bikes where you dont really feel the delay but older bikes with e throttle do really feel different. Also carb vs no carb.

I was thinking the same thing. Just take a cable cam that is elliptically shaped and it would start opening slowly and thereby straighten out the torque/throttle position curve. Cool to hear that they are using that on motorcycles!

The carbs on the old bikes I've messed with have a vacuum-regulated venturi downstream of the throttle plate. This is essentially a gate valve that restricts airflow like the throttle, but for the purpose of maintaining uniform air speed through the venturi to ensure consistent fuel draw and atomization. I haven't ridden a motorcycle with electronic throttle, but I would expect any delay to be disturbing.

Hey, Jake! Wanna say some cars have the same "cam" on the throttle shaft.. love the vids!

Love your mt07 series Jake, but I couldn't get over the jerk throttle response of mine. Got a cbr650r. The jerk is still there but much more maneagble in a smooth 4 cyl.

Correct. Tune can help this or some physical mods to the valve.

Yep, exactly right. I think the N/A AW11 MR2s used a dashpot, but the supercharged ones didn't, for example. On the other hand, all 3 cars I've had have had mechanical throttle bodies without a dashpot, so I don't think this method really took off until the electronic throttle bodies made it trivially easy.

Those were mostly on cars with carburetors. They tended to run very rich coasting at minimum throttle, which meant they ran very dirty. The dashpots I remember were vacuum operated and would keep the throttle from closing fully until the RPMs came down.

Yup, a mechanical solution but for the same reason.

I'm not sure what you're comparing against, but rev hang on ND is actually quite minimal. The Crosstrek is awful haha.

I cant even drive any car thats drive by wire, my shifts turn to dogshit compared to my e34 bmws

@@EngineeringExplained The rev hang is definitely less than some other cars , but it's still very noticable on my ND when compared to my NB. I thought there was something wrong with my car when I first bought it, but I have since gotten used to it. Great video as always!

@@jesperviktorsson8027 practice makes improvement, surgeons are not born; they are made // hang in there :P you eventually master each setup ///

@@EngineeringExplained The rev-hang is much more pronounced in certain makes while others don't have it at all. If yours does, with practice it can be avoided by including ~1/2 second wait between lifting off the gas pedal and pushing in the clutch to change gear. With enough practice this timing becomes automatic, you stop noticing it and there's no time/performance penalty when changing gears.

he is a 46 year old 23 year old.

his skin is super smooth for a 46 year old so he's probably much younger than that.

Yes

He is like Tony Hawk. An old young adult. :)

isnt he like 30?

I too experienced the same thing. It is still driving me nuts after a year of owning the car

@@L39T I was learning to drive stick on a new Subarua and was pissed that I have to wait for something to happen when realising the clutch.

just give it some gass when you let the clutch bite. or a lot of gas; the 6 speed subaru transmission is pretty strong now :-)

Many manual BMWs also have clutch delay valves. Look up if yours has one and get it either removed or replaced with a valve that doesn't delay.

Although in a race scenario it would help you go faster because it's kinda like a half of a power shift. But I got the joke lol

Nathanael Naused i was able to keep up with my friend’s ‘01 Audi A4 with a v6 so it perhaps helps a bit.

A first-gen Mazdaspeed 3 would put the hurt on an ecoboost stang

Porsches and BMWs do rev hang too, you only have to search for in on internet. I have also read that yes, it is usually more pronounced on turbo engines, because, they have a more natural tendency to lower the rpm more slowly than N/A cars due to the turbine inertia, or so I think I have read

Solution: shift into reverse

That's unfortunate and I know what you mean.

@@doogetube6017 nice

trucks also have very heavy flywheels because it helps with take-off when towing or offroading.

Same here first to second is the worse in my mazda

I have an 18 si, rev hang used to be really bad, but with a tune, it's pretty much gone. I also have a new clutch with lightweight flywheel.

Yep. The thing I miss most about my 6th gen Civic is its gearbox. It gave close to zero fux, and shifted as fast and smooth as you could. Meanwhile my new car with its bigger and more powerful engine is WAY more sedate because shifting is more like throwing a baseball to someone across the field than tossing it between your own hands.

Same on my dads '13 1.6D focus

Get a Ktuner or Hondata. You will have the option to turn rev hang off (as well as many, many other things). You can also turn on launch control.

Also adding trickyness to the 1-2 shift is the fact that it’s also the largest gap and the revs have to drop the most. The gap is smaller for every successive shift, making rev hang less and less of an issue. Unless you drive a semi. Each of the 18 gears has exactly the same space. You learn a rhythm and shifting a breeze. Most truckers only use the clutch to launch, and then shift every other gear without clutching. But that’s a whole other video ...

@@ianswitzer2915 I heard about shifting without clutch in semi trucks in America, but never heard about it in Europe. My dad who is a trucker here in Europe never heard about it. I think that a lot comes out of European truck's being made differently. But my dad now is happy, that he drives Volvo with new automated gearbox =) Btw, clutchless shifting is very popular in motorcycles. Especially if you are more kind of sporty rider. Even without quickshifters, which cut ignition while doing gearchange (and that lovely bang when fuel get's burned in exhaust).

@@Stasiek_Zabojca if I recall, some (or many?) bike transmissions actually use dogs to engage the gears instead of the smaller teeth from synchronized gearboxes from most cars, so it happens easier. Those 18 gear 'murrican semis are a beast of their own too, they don't have synchros from what I know, 6 gears on each normal, high and low, pneumatic assisted. I remember asking some truck driver how it is that he operates them, from what I remember he said pretty often he skips quite many of those gears or the entire section (low, normal or high) and so on, or just wack the shifter to the side, and the air assist shifts to the next gear. It's also common to grind gears sometimes on those, no matter how experienced.

@@Stasiek_Zabojca Clutchless shifting WAS common in Europe back in the day when manual trucks were the only option. Synchronized transmissions were introduces quite early into trucks in Europe but the legendary Eaton-Fuller is not synchronized and requires clutchless shifting to work properly.

@@Kalvinjj Every bike uses dogs. Basically all sequential transmissions are dog boxes.

100% real

Airbus had this problem with early fly by wire and pilots over adjusting controls due to the lag between pilot inputs and airplane adjustments.

I'm always flooring my manual and shifting low RPM, just so I can shift swiftly and smoothly O_O

Yes

Yep

i’m with you man. i have a jeep with the same engine and the 6 speed. the rev hang absolutely sucks. it seems like the longer i drive the worse the rev hang gets. sometimes when i go to shift the RPMs don’t go down at all. im worried that this causes premature wear on the clutch as well.

Me too!

MAP OTS tune with a Cobb access point eliminated my rev hang, gave more power, and no lift to shift for my WRX. Best 600 bucks I've ever spent.

That is the one main thing i miss about my old Suzuki Swift..(same as the Metro there) :( That throttle feel/response is whats missing from every other car i've driven...

I had 3-cyl metro with a 5speed. I absolutely love and miss that car.

@@joesdiy4260 Imagine that with the 1.3 86hp version.. For it's 850kg :))

...And got Hybrid-beating gas mileage, back in the early '90s. Incidentally, the only speeding ticket I ever got during that era was from flying downhill in a borrowed maroon 3-cylinder Geo Metro. 😁 You had to have driven one to understand.

Yeah I feel like if you own a car then you get used to it and it’s not a huge issue, I wonder if he just notices it because he’s reviewing different cars all the time?

I've noticed this with rental cars. Throttle flat on the floor, then let off the throttle completely and... The car still seems to be accelerating for a moment or two

@@theydidntnameme put in sport mode, this enable the accelerator to react in a sharp mode, but normal driving consume less fuel because of these slow operation that discard some unwanted oscillations that our foot create (i.e. his mass and pot holes or uneven road)

I did this also.

Drove a 2008 manual with electric throttle for 9 years. This is exactly how I defeated the issue. Fuel deceleration cut off

Gas pedal down until you feel it's about to shift, get off the gas a little as it shifts, push the pedal down a little after the shift and instead of dropping rpm with the shift and slowly crawling back up you get a nice shift and then Rev back up quickly. Love that feeling in a moderate to low horsepower car just getting up to speed. Smiles per gallon haha

That's true, reduced pumping losses.

@@averyalexander2303 Don't forget reduced frictional losses and accessory parasitic (hydraulic power steering, AC, iron losses in the alternator, belt, etc.) from reduced revs.

My V6 Tacoma: **Climbing a hill, losing speed** Don't worry, fren. We can lug up this hill in 6th gear. Me: **Applies 6% more throttle** My V6 Tacoma: Oh, I see you're asking for a tiny bit more torque. **DOWNSHIFTS TO 3RD, ENGINE SCREAMS!!**

20 Years or so ago and earlier, this function was served by a simple button/switch behind the gas pedal. The end of pedal travel matched full throttle but if pushed harder this would press that button signalling the auto trans to downshift.

...in service as usual :)

Audi, mechatronic Bi*ch

Diesel: fuel throttled

@@timothyball3144 btw i heard somewhere even some diesels still have something alike throttle body and it wasn't meant as intake flaps probably but im not really sure. Somebody knows something about it?

an0nim11 may be used for inducing some engine brake during the downhills.

But just think of how sad those 2 senior techs are now.

They’ve probably never driven manuals. Lol, jk.

Yeah. The rev-hang on my Si is horrible. Just horrible. Shouldn’t need to go aftermarket to fix - but it is what it is.

@@GregBalzer Same was with mine. But after installing the tune, it's a completely different car and the gearbox is among the finest you can get. Getting rid of the rev hand alone made the tune worth it, the added torque and horsepower available once you press the sport button, a VERY nice bonus.

Same with my '06... the hang at 8300 was about a second long after you push the clutch in before I got a tune and it would rock back and forth

Someday I will go down this path on my 2018 accord 2.0T with the 6MT. Rev hang sucks on this car, but I love every other aspect of it. I find that driving with AC on helps a bit, but with AC off it is awful.

I was wondering if a tune could help this. Might it cause problems during emissions testing?

If your doing track days you should look at getting a tune to fix that

Tunes usually change this behavior, or an experienced tuner can do it without much fuss if that's the only thing you want changed.

I had a 2015 mustang gt. Just get a tune, Id do e85 or flex tune if its in your area and simply ask to remove the rev hang. I think some tuners leave it in because some people like it like inexperienced drivers. It was always known the 1 to 2 shift always made the car jerk unless at red line so people just got the rev hang removed with the tunes.

same in my vw polo. need to push and release the gas pedal a split second earlier that i would normally.

I drive a 06 Ford Fusion, I’ll have to try this on mine. Maybe it’ll help 🤷🏽‍♂️

The way i handle it is to half way float the up shift gear change. As you reach the shift point let off the throttle, as the gearbox unloads hold light presure on the gear lever and as it slips out of gear press the clutch and change into the new gear in one motion. Takes a little practice but very smooth and a little quicker.

To be fair, it's only one of several possible explanations :-)

I compensate for rev hang by shifting as if I’m starting off from first gear at any gear change. Don’t step on the gas until you’re at the clutch bite point. Gone are the days where you have that see saw step of the clutch and gas pedal.

@@rogrwi1co me too.. have been shifting like that ever since i got a car that hangs.. i'll have to say that it works, but surely impacts the clutch / mechanics wear.. Shifting lke i would do in any car that doesn't hang, would result in an undriveable experience.