The Truth About Rev Limiters

Big thanks to HP Logic for providing awesome footage. Check out their videos here: bit.ly/2rBYAQh
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Credits:
"Rally Legend 2014" by Rowan Harrison, used under CC BY-SA 2.0 by Car Throttle and has been altered. License creativecommons.org/licenses/...
Andreson Gustavo Fogasa Dombski
Daniel Nieves
Mike Walton
Jeff Sanders
Fawzi Qaisi
Jesse Seven
Carlos Mazariegos
Kieran Bourne
@duncatt
Rocco Buhagiar
Moneer Al-KhawaJa
biser3a
/ easy4human
• Acceleration 0-254 km/...
• Igor Drotár - Mitsubis...
• 2015 Otago Internation...
• Nissan S13 RB25DET Launch
• 94 Peugeot 306 Rev Lim...
• Scirocco 1.4 TSI 160 D...

[@ej22_gc86]

That turbo panda at 2:42 got me 😆

[@DriverAnonim]

Somebody plz send video :D

[@jordanlazarus7345]

HOLY FUCK I NEED ONE NOW

[@dinopenava5967]

Ayyy Alex, it's Ethan :D

[@mpiloz8016]

Hahaha, I want 1 too, who needs a boost Guage when you got a panda 🤣🤣

[@Jellyfishmadness]

Alex_the_Subarist I was expecting a turbo charged fiat panda. Was not disappointed

[@arburon03]

3:43 at that moment a prius drives by

[@arburon03]

Cone hahahaha didnt hear that the first time tho

[@glennaguon5165]

Prius:best race car in the world(sarcasm intended and be offended)

[@hene193]

The cool past and boring future in the same pic. Sad.

[@xalataf3365]

Way better than that boaty overrated piece of shit.

[@MrDustinclement]

Just to note, antilag in rally cars is significantly different that “antilag” on most lower end ECU’s that guys will use for launch. The rally systems are not just retarding timing. They’re a full air bypass system where the turbo cold charge will actually recirculate into the exhaust and fuel will be added normally by retarding timing and then a secondary ignition is used in most cases. It’s a very advanced system and really really cool. It’s now being used in Formula Drift as well for those that don’t follow either. Worth noting because I think your info was a bit misleading.

[@redline350zHR]

Pls do not use the word “retard” or, as in context, “retarding”. The proper term is DEVELOPMENTALLY CHALLENGED. Thank you in advance.

[@dustinclement2483]

Lol I can’t tell if this is serious or not

[@redline350zHR]

@@dustinclement2483 🤣🤣

[@yawg333]

@@redline350zHR lmfaoo

[@Sm00thieK]

It's like an afterburner in jets?

[@kristiyanatanasov2326]

That Bulgarian 240 at the end :D

[@Aralakh919]

Звяр е

[@CrazyDutchguys]

yeah i have a question So how do i replace my piston return springs?

[@Mitsushiro23]

watch chrisfix he has a video for that

[@raniugay9487]

do you have an elbow grease ? if yes where did you bought it ? i badly need one thanks

[@Lurod_]

First cut the muffler and remove muffler bearing because if you take them out they expand and explode on your face

[@benlee2765]

You need a long stand.

[@grivious31]

Use some soapy wooder to soften the grease.

[@FalbereChan]

...the misfiring systemu!

[@maltainu3621]

Very effective at killing an 86

[@dubbleA100]

Taaaaakuuuumiiiii

[@kohul_sol5105]

I wanna enjoy my car content without absolutly unfunny weeabo references, thank you very much.

[@Stratos1988]

MarkOne Hidoi

[@kohul_sol5105]

ok

[@WPTUNED]

And remember guys, it is always best to use all of the above limiters on a cold start for maximum results ;)

[@ap1s2k78]

Will Palmer for engine longevity, peg for to floor the second the engine starts and let is bounce off the Rev limiter, this will warm the engine up faster and promote better oil flow, increasing lubrication and engine longevity. It even says so in every owner's manual, don't look, you can trust me.

[@MrCarguy2]

Will Palmer also, if your car has a turbo remember to floor the living shit out of it then turn it off abruptly Helps to lessen the turbo lag overtime

[@nunyabusiness896]

Instruction unclear, piston caught in ceiling fan.

[@kirkc9643]

It helps let everyone know how cool you are too

[@YN-io6kj]

If you put petrol instead of engine oil it creates much bigger and louder pops and bangs.

[@oliverien-sramek3749]

The car community needed this video so badly...

[@bryanmasis1595]

Oliver Øien-Sramek No the non-car ppl that want to act like a car ppl

[@MrCarguy2]

0:52 revving the engine cold REEEEEEEEEEE

[@lovelyxyz]

it's not cold

[@salocin3114]

@@lovelyxyz the right gauge is on cold

[@ben__27]

Either way it does 10mph - 35mph in 6 seconds so you know its basically as fast as a super car 😂😂😂😂🤦🤦🤦

[@VoidSixx]

Also good to emphasise something between 2-step vs Anti-lag Yes, 2-step *can* build boost, but it isn't designed to, it's only a side effect. Anti-lag is purely for building/maintaining boost, and will maintain higher boost pressures than 2-step is capable of.

[@drewkuze9619]

good expalnation and it was cool to see an hp logic clip at the end

[@videosofc713]

My dad had ALS He died

[@matu676]

MISSFIRING SYSTEMU

[@Deadequestrian]

Matías Santoro got me one of them ones

[@spicyboi860]

Pan pan pan Takumi:MY 4AGE NOOOO

[@Whyalwaysdemi]

This was a really good explanation 👏🏾

[@MrScoobycube]

One question can hard cut damage your turbo

[@buca9696]

1000 HP Supra Anti-Lag FLAMES Turbo SOUND every supra video ever

[@jacksonshelton8055]

I just realized that I think backfire is when fuel accidentally combusts into the intake of an engine when experiencing bad valve timing or valve float or something like that

[@the_batmobile0.4]

So everytime I wot my car hit the rev limiter and starts to backfire on through the exhaust, what's causing this?

[@cobaltlukather9045]

where did that panda video clip at 2:41 come from?

[@GraveUypo]

what is it when you hit the limiter and the engine instead of constantly bouncing like that, just bounces once and loses all power for like a whole second or even two?

[@fonzarelly8011]

can you have both als and two step set up to a switch in software in the ecm or is it to much

[@aliqadri4672]

Can rev limiter can install in distributors ignition system cars if it does so how it can control the ignition timing because distributer has its own manual spark timing wich advanced or retire vary on rpm or speed...???????

[@harry6232]

Does anyone know where I can buy one for an r32 skyline and how much will it cost

[@aliqadri4672]

If hard cut cut the fuel or spark at once so is there any pop throw exhaust..???? Because no fuel enter in cylinder or exhaust ..

[@zacharyoneil9856]

guys.. if I do a remap and having rev limiter set up.. is it safe for the engine?

[@sbr7018]

Where can I buy a limiter for a NB 2002 1.8 Miata

[@danielr.]

So how do I do it when I got neither of those systems in my car?

[@mouaxiong8618]

Which one should I use though?

[@PCXBGamer]

What about hard cut limiters or "popcorn" limiters on a diesel engine? Would the risk of damage be the same? I heard it can be bad for the timing belt.

[@gordocarbo]

It is, also hard on the rod bolts

[@necromancer___3054]

So was that S13 at the end using anti lag or 2 step?

[@captainzoll3303]

no mention of backfire/ afterfire confusion?

[@aliqadri4672]

How antilag spool the turbo between gear..???

[@Diemich]

Awesome vid!

[@v.e.7236]

2:41 Where can I get one of those crazy inflatables? Too funny! Every turbo car should come with one as standard equipment. LOL

[@rav3nw3st]

Thanks a lot for this one. Didnt know the difference until now 😅😁

[@afoxwithahat7846]

I knew a bit of that before just thinking how it could work, now I know.

[@diptanshumishra5356]

How will cut in the fuel or delay in ignition keep a car at constant rpm?

[@Pippy1]

Soft cut wont cut all cylindera at once it kinda rolls into the cut and hard cut once it sees the cut condition will cut all cylinders are the exact same time.

[@lks3g380]

The exhaust goes 🔥🔥🔥🔥

[@demonslayerproductions]

Does anyone know if you can bounce off the limiter while trying to learn to drift in first gear or second with an automatic transmission? I would like to know because I got a 86 I'm trying to figure it all out at my local abandoned mall

[@Pippy1]

I mean sure but its not very nice to the car

[@MrIdidyourmother]

For the love of the car gods, please make a video on afterfires and backfires. Probably one of the biggest mistakes made in youtube comments.

[@CarlosGonzalez-vi9qv]

BlueHuck Backfire is a bad thing on carbs, like really bad lol

[@CarlosGonzalez-vi9qv]

@@enriquesegura6844 I know

[@vigneshkannan3921]

When I floor my car (a stock 2012 Honda) in neutral, the Rev doesn't exceed around 4,500 RPM and it bounces back and forth. Is that a 2 step??

[@johnennis4586]

It's a soft cut limiter

[@chris_purves]

All those lovely NOISES just need to fit turbo to my Bluebird now...

[@noe6969]

Finally everything is clear to me! Thanks car throttle

[@DARREN_STI_WANG]

Are rev limiters hardware or software tuning?

[@Pittaz]

Sweet now looking up turbo timers.

[@Daddimirr]

Ignition cut deadass sounds like a jake brake but with fuel

[@matthewandcars533]

Explain why popping the clutch works🤯🤯

[@stinkymedia8922]

What type of exhaust system makes a car shoot flames?

[@TechDeath28]

Wafi W straight piped

[@wobblestone3148]

just a question..why does supercars in racing games spit fire out the exhaust every time they change gear?

[@gordocarbo]

ALiens putting the lotion in there

[@coreywilliams5400]

Can you use all of these in one car???

[@merciless9285]

wtf that supra clip at 1:20 does anyone have the link?

[@tim234mumba]

What about popcorn limited to dissel???

[@captnjaygreybeard6394]

Great info thanks

[@rhedinrage1601]

It isn't ignition in the hot exhaust, it's ignited by the after fire of the following cylinder otherwise on older cars without all this electrical stuff in them, if you reved it and then turned off the ignition there'd be a constant stream of flames, instead there's just one pop when you turn the ignition back on. The hot exhaust merely flashes the hydrocarbon fuel into a vapour making it much easier to ignite. If a hot exhaust ignites fuel vapour you'll get a constant stream of flame from down the pipe which will make a very characteristic whoosing noise where as after fire ignition makes a pop or bang. An example of exhaust ignition would be some high end lambo's where you can see that blue flame on the exhaust sometimes under acceleration. That flame also contains a lot of very hot oxygen.

[@nbschriz8509]

Wait 2 step is only a like drag racer or race car or can u have it in a car just to show off lol

[@amihere383]

thanks for this video, I had no idea there was even a difference!

[@RedstoneWolf531]

Really good explanation dang... need to show this to my friends who never know the difference 😂

[@fawziqaisi728]

@2:35 THAT WAS MY VIDEO! LMFAOO I GOT MY NAME IN THE DESCRIPTION!!!! LMFAOO

[@trident4555]

[HOONCULTURE] too late dude

[@YessirPauly]

You want a award for that?

[@shoppingcart2589]

nobody asked and nobody cares for your opinion

[@Aceyexclamation]

Dude just stop. Some people like me would be excited that a vid of yours was in another so actually. No body cares about YOUR opinion

[@Spooky4815]

Thanks for clarifying this

[@conker33350]

Welp you got my sub. Very clear and concise explanation.

[@ChrisM777]

HP Logic in CT video!!!

[@Mr009mm]

i want to say i saw one in a vid not to long ago. i think it was from carthrottle as well. i was like what thats cool when i saw it.

[@Stratos1988]

Bless you for this video good lads.

[@pcandmacturorials]

That Turbo panda at 2:40 is fuckking GOLD Hahahahahahha

[@benchingbull831]

the launch at the end is 1 block away from where i live

[@haider7866]

Can i make my 1.6tdi pop and shoot flames?

[@pataudio824]

Отново много добро предложение от България. Последната кола на Нисан сх200... уникален звук, Браво!!!

[@dagmerrie]

Wow which car is that at 0:17?

[@dawsonwells1193]

The evo? Or the rx7?

[@shuaybdurgahed]

Plzz someone explain😭 how can the engine still run when the spark is cut completely. ( im 15 and trying to learn about cars 🥹) Like how the pistons can go down and back up without any explosions in the cylinder !!!?

[@manfromnantucket9544]

Why would you want to spit flames tho?

[@ImaDjentleman]

4:04 JACK

[@nickiwen2715]

ImaDjentleman I was so happy to see him in here haha I was not expecting that

[@definitelyfunatparties]

Nick Iwen I kinda was expecting it.. pretty sure that Supra at 1:03 was outside HPlogic

[@omgomgomgpuppies36]

Just love when they are in videos lol

[@TheGo4live]

I still can't understand what causes the exhaust pop up when you shift up in new cars like A45 amg and RS3 and the golf R and other RS cars

[@larsmurdochkalsta8808]

anas boulkhalil when you close the throttle there's a moment with a lot of fuel that doesn't get ignited hits your exhaust causing flame so when you lift off throttle to up shift quickly this happens rapidly there's more fuel and higher chance of this happening

[@tangles01]

I think it;'s got some fancy valve system int he exhaust too, as I've seen them pop when slowing in city traffic at low speed and RPM.

[@TheGo4live]

tangles01 yeah that what i think it's a valve that causes the pop up sound because it sounds loud even if it shifts in low rpm and it does not sound like a gas explosion

[@kacperkolbusz2453]

What about a popcorn limiter

[@bigjoetheelectrician]

Thank you so much this answer all my questions

[@CaptPatrick01]

A question, why do cars start to require costlier and more frequent repairs the closer the vehicle gets to end-of-life? Like initially the car may have one or two trips to the shop a year when new, but 10-15 years later, it sees a new repair and parts replacement once a month, maybe 2 months if you're lucky, the value of the car dropping to the triple digits, until it becomes more economical to just buy a new car. Essentially what happened to mother's minivan.

[@maxwellhughes7821]

Cars are a combination of tens to hundreds of different systems with tens to thousands of different parts comprising each system. Any one of them can fail or cause another part to fail more often and age is the killer of all.

[@Kasev309]

Cheers from Bulgaria for the bulgarian 200sx at the end :)

[@phenix8514]

Also worth to note: Not everytime a car goes bang its because of Antilag or 2steps. (Gotta love the compilation videos that get this all wrong)

[@Anarchy-Is-Liberty]

"Antilag or 2steps" - you mean Antilag or rev limiters! 2 steps don't limit anything, in fact they increase something more than limiting it!!

[@phenix8514]

@@Anarchy-Is-Liberty A two step (Rev) LIMITER limits the RPM in two Ranges, a low range that keeps the RPM at a set "optimum" for maximized grip on launches and and a High Range which is the maximum RPM the guy that sets it wants the engine to run at. They just cut the fuel (and/or ignition) to prevent the engine reving past the set thresholds. Antilag basically dumps unburnt fuel in the Exhaust system by retarding the timing to get Afterfire (not backfire) to keep the turbos spooled. This is mostly seen in racing as it will put a lot of stress on the Turbos. And generally cars can afterfire for a bunch of reasons, not just limiters and Antilag. I by the way wrote the comment before checking what video it even was on since its an old comment. After watching the Video again, this is exactly what he explains anyways...

[@agustiniriarte3037]

What's the car at 2:22?

[@therealfluffynolixfoxouwu]

Porsche 911 GT2 RS

[@AlExAnDrU0987]

The last skyline is from hp logic and there’s jack 😂😂

[@Daniel-dj7fh]

isn't a 2step syystem then not good for the engine?

[@Daniel-dj7fh]

but are the parts engineered to be able to handle spark-timing changes? we're talking about huge forces acting against the natural way of how it's supposed to be. and recently i heard, that unburnt fuel is bad for the catalysator..

[@Kett_22]

2 step and anti lag is bad for a normal engine. The engine isn't manufactured for that. And it is also bad for the cat.

[@leskunk_7798]

Anybody seen how long the vid is

[@bryanlittle4041]

Explain remapping please

[@Daddimirr]

BUT HOW DO I INSTALL THIS WITH VTEC

[@kyle-kelliher]

vladsmad get a hondata s300.

[@Topsiekku]

Well

[@ryantoomey611]

Doesn't Honda use a system like this called VTEC?

[@thomasrivard9772]

They're just PJW but good and for cars

[@wumarNart]

2:41 I WANT THAT !!!!

[@j9drive369]

A word of warning using the Bee-r or any other ignition cut that uses the same method of cutting ignition which is to ground out the coil and stopping the spark But the spark has to come oui of the coil regardles as the Bee-r cuts in the middle of a cycle causing a random spark at any point in the cycle. If you like your engine and don't like DETONATION and your engines lifespan being reduced then take note. Also If you do use the Bee-r, make sure you have a straight through exhaust as large restrictive silencers tend to explode when full of fuel in them.

[@Hallisi]

So are u saying I shouldn’t get it then?

[@DrRyan82994]

I was kind of surprised to fin out my Mazda 3 has a 4k rev limit while stopped. Factory launch control? lol Sadly no bounce though.

[@zevi2000]

DrRyan82994 It's to help protect the transmission and driveline

[@DrRyan82994]

zevi 2000 Right that's the probably the intent and not launching lol

[@Kett_22]

Like my Golf Mk6

[@crispdonkey2222]

Who voiced this video?

[@Flako92]

Man HpLogic was really repping here.

[@MRTuning704]

Aaaaa hp logic! Dusty looking purdy

[@ilikeboost4764]

M&R Tuning and Cleetus McFarland.

[@julien8327]

So why does it pop on naturaly aspirated engines on upshifts, please ?

[@faris911]

Julien the engine probably run too rich, or a bad spark so the fuel doesn't burn completely

[@2jzgte408]

Dsg gearbox?

[@jamesupton6325]

It's usually just unburnt fuel in the exhaust. But you can tune the car to do it every time like the F Type

[@julien8327]

Ok thank you guys

[@will2557]

Are pops and bangs good?

[@zerofive5734]

Mr WRC depends on what's causing the pops and bangs

[@Trident_Euclid]

Bobs and vegene are good

[@PlatinumNath]

Not good if it includes burning parts and blown heads

[@dahorn100011]

for sound yes, for engine components no

[@lucaballardini1]

like Zo1d_ said, it depends

[@ek8710]

I thought you were going to go into explaining launch control :C

[@TheShepTV]

Great video

[@ARGOS-THOR]

SHOUT OUT HP LOGIC SUPRA YEAH!

[@elieconstantine]

At 3:40 the famous rally of lebanon

[@DersNoNem]

So shouldn't the title changed to 2 step?

[@Dholi3144]

I think 3:45 was Alex Choi

[@MrFastFox666]

Great video. I always heard these terms but never knew what they meant I've noticed that my civic (bone stock) has a Rev limiter that kicks in at like 4500 RPM when the car is stopped and in neutral. I guess it's to prevent people from revving to redline and putting it in Drive to launch the car.

[@dcdude345]

uRiBiTo666 hmm my Jetta is like that too you can only go up to like 4k when your standing still

[@dahorn100011]

my last car was the same. Its also to do with the lower inertia of an engine not connected to the wheels.

[@johndc2998]

Thats to protect the torque converter

[@sethk1429]

Yea some Ecu’s are tapped into the neutral safety switch to know when you’re moving/ in gear or not. But it’s to protect your drivetrain as you said

[@MathsYknow]

I didn't know that was to protect the torque converter. I discovered this rev limiter in a rented Dodge Challenger R/T and assumed it was put there by the rental company to prevent customers having too much fun! ;)

[@bigpat_4295]

But why do some make flames or crackling Sounds when they Just Go of The gas

[@zevi2000]

thedogefogx420 thedogefox420 Unburnt fuel igniting in exhaust

[@bigpat_4295]

zevi 2000 but why only in some Cars and Not in every Car

[@jamesupton6325]

thedogefogx420 thedogefox420 This wouldn't happen in a Civic or a A4 because it's not a high revving engine. In a performance / race car the engine is working harder and faster so it's more likely that some fuel goes to the exhaust.

[@bigpat_4295]

James Upton wait There are many Flame spitting Audi a4 or Honda civics i dont get it:/