Anti-Lag System By Ignition Delay - No More Turbo Lag

[@EngineeringExplained]

Nope, just barely old enough to play rated E video games. Mario kart is my source for all my information.

[@govinddale]

*MISFIRING SISTEMU*

[@EngineeringExplained]

Depending on the air fuel ratio, you can still have afterfire with a NA engine.

[@jesseramjohn3777]

nice , understood , subscribed

[@EngineeringExplained]

Thanks for subscribing!

[@scotthamed-ramos887]

+Engineering Explained how would this same concept work with a different engine like lets say a rotary engine

[@chrisstark8996]

MISFIRING SYSTEMU

[@keeperofeurobeat8421]

MISHFIRINGU SHYSTEMU

[@iliutaovidiu9815]

W H I T E C O M E T

[@adamschmitt2799]

AH-AHNIKI?? Misfiring systemu

[@vickk709]

N-NANI!?

[@Bramkarz41]

*pew* *pew*

[@nicknags8041]

*bom bom*

[@EngineeringExplained]

Could you clarify your question? ALS will mean worse fuel economy, since you're using gas to drive something other than the tires (as well as more of it), and it will likely decrease the life of your car, since certain components are not typically meant to handle these stresses and temperatures.

[@EngineeringExplained]

You would need a fairly powerful motor to do so, which would need a separate power supply other than the battery used to start your car/the alternator. Basically, this is why superchargers are run off an engine belt, so that they have enough power to do what they need to. That said, it could be done, it's just a bit cumbersome, complex, and would of course add weight.

[@EngineeringExplained]

Rally cars, such as those in WRC would often use systems like these. Turbochargers have advantages over superchargers (no parasitic drag, increases efficiency, see those videos for more detail) that make them worth while, in some applications.

[@chowdans]

Dude you are an awesome teacher, there is no way i could have passed any of my exams without these videos. thanks man.

[@EngineeringExplained]

Will do, thanks for watching!

[@gautier998]

Always a pleasure to find an old video of you Jason :)

[@EngineeringExplained]

2 step is a rev limiter. One step for launching (holds the revs relatively lower) and the other for when you're driving (rev limit, around redline). ALS by ignition delay could be done through ECU remapping, yes.

[@skateaz95]

These videos are awesome man! I was a little skeptical at first because it's harder for me to understand through hand drawn ways rather than computer illustrations but never the less your drawings aren't bad and your explanations are great! thanks bro :D

[@EngineeringExplained]

Thanks for watching! Don't see any reason why it would.

[@EngineeringExplained]

You are correct, there are two ways of doing it. You can cut the fuel, or cut the spark. Either way the engine will stop revving up.

[@TRX450RVlogger]

Don't lie, nothing abut this is beneficial other then us Men just love the sounds of the Backfiring lol

[@guigui70051]

TRX VLOGGER it is really usefull, especially with big turbos with a lot of lag when you drive on a track... but most people never go to trackdays and just enjoy backfire. It's like race car bodies, they are design to be aerodynamic but we love it because it's beautiful

[@martinsliepins6225]

TRX VLOGGER I agree. You lose both the turbo lag and power.

[@jakegamble9924]

you don't lose any power? unless you mean when braking, then of course you lose power...That's the point of braking to slow down, you probably don't want your car to keep building power when you want to slow down because well should be pretty easy to see you won't be slowing down@@martinsliepins6225

[@marcusgeier5001]

user9823598246 I mean the risks outweigh the benefits unless you’re driving a track car

[@ChUsTA65]

Anti lag system is important for rally races. They need that instant boost upon accelerating out of corners.

[@EngineeringExplained]

You were, in fact, the only reason I made this video. :)

[@hashimiyazib]

ALS fire bucket challenge

[@davideg1001dg]

Fantastic explanation well delivered you mentioned there was hot air going into the cylinders when you went back on the throttle but you could have explained how the ECU adjusts back to normal ignition stroke when you press the throttle also you did say let off your gas more than once. From Dave aged 52.3/4

[@EngineeringExplained]

^^ Yes. "stoneddoggie" was saying to keep the revs up to maintain boost. This can be done, but once you shift (without matching the speeds) you will have more wear on the clutch.

[@evoxterrier5124]

I love your videos I could Google these things all day and still not have a clue what it means. but when you explain it, it's very clear to understand subbed

[@EngineeringExplained]

Thanks, glad you like the videos!

[@EngineeringExplained]

I suppose, but you need air in there as well, and that would also cause you to have more fuel injectors/fuel lines. Probably more safe and cheaper to just run air lines.

[@EngineeringExplained]

No, they simply had the exhaust flow into the diffusers. I believe when they let off the gas it caused a noticeable reduction in downforce for the drivers (less grip).

[@P3ZZA1998]

You deserve way more subscribers and views on your video's, you make everything sound so simple and easy! Good job!

[@EngineeringExplained]

This is likely due to a rich air/fuel mixture. When you're heavy on the throttle often times there will be an excess of fuel, and some of it will go unburned once you let off the throttle and there isn't enough air in the cylinders. When this air meets the outside air (oxygen rich) and the hot exhaust tip, it ignites, creating that pop that you often see in racing. I believe the Ascari is naturally aspirated.

[@esnevip]

Relax mate. You do an amazing job at explaining everything we could need to know in an easy to understand way. Which you clearly put much effort and time into. So don't worry if it takes some time, as we appreciate the videos and information in the clear and simple way you provide it!

[@EngineeringExplained]

No, not always happening. Basically when you let off the throttle it will kick in, so that you can maintain boost while switching gears.

[@DDBrownFL]

Good stuff. As a Supra owner I value the ability to create boost off the line when I need to. This technology does just that.

[@jonathanliang4275]

thanks, these short videos are very convenient to watch before school

[@EngineeringExplained]

Great to hear, glad to have helped you!

[@TvR_pRoductions]

Loved both of your videos on anti-lag (ignition/bypass valve)

[@EngineeringExplained]

99 Integra, ls. It's super slow, but I love it! Eventually I'll have a new car.

[@gonzalodeirujo5231]

OK, I don't usually comment, but these are the best explainatory videos that I've ever seen, not even joking, seen like 4 hours of your vids now, any chance you'll do a motorcycle video? keep up the good work!

[@EngineeringExplained]

This is likely from a rich air/fuel mixture, when the unburnt fuel meets the outside (oxygen rich) air, matched with a hot exhaust tip, it ignites.

[@ArthurSperotto]

Overboost is a feature some cars have that when you activate it (normally through a button on the cabin), it changes the turbo's setup/configuration on the ECU temporarily. It changes it to a higher PSI that it couldn't handle all the time, but for a few seconds, no problem. Normally you have to wait some time for the turbo (and its components) to cool down, as this increases temperature significantly. Hope this helped. Arthur.

[@EngineeringExplained]

I have a video on ignition timing, and ignition systems if you'd like to continue your endeavor on learning. No need for negativity my friend.

[@TheDrAkira]

Wow, your explanations are so easy to understand... great videos man! Greetings from Argentina!

[@EngineeringExplained]

Don't really know what overboost is, perhaps boosting higher than your engine can handle (or higher than it's wastegate is set).

[@maliki14]

Newer and better ALS challenge :3

[@EngineeringExplained]

Depending on how you program it, or the set-up, yes.

[@EngineeringExplained]

Well you want to match your revs to the next gear for a smooth shift. You could do this, but it would just mean extra wear on the clutch.

[@EngineeringExplained]

I may have generalized if I said at TDC, typically it will be slightly before.

[@EngineeringExplained]

Thanks, glad you like it!

[@brunorcabral]

That is it. I'm here because of one of his tweets. It would be nice to see you in one "The Flying Lap" with him and Peter !

[@driftazn]

I have been looking a channel like this! Keep up the good work.

[@JETZcorp]

It was the first AWD rally car with any kind of success, and it was hugely successful. Even though the handling wasn't terrific dynamically, the traction of the AWD was a major advantage in a time when power was starting to escalate.

[@EngineeringExplained]

I know, I apologize, the list is obnoxiously long and I'm only one man unfortunately. Wish I could produce them more quickly.

[@2JZLS]

I truly appreciate all of the knowledge you share. Its cool how much i've learned from your videos! Thank you.

[@Timoastra]

Very nice videos you make! You talk clear and that is nice for us non english speaking. Only thing i would change is that you should get a small microphone to have on your shirt neck and get the sound even clearer. Very nice work anyways!

[@xxjon94xx]

Great job with explaining on a level that I can comprehend. I just hit the sub button. Keep up the great vids.

[@EngineeringExplained]

Yes, it's bad (not ideal). And there are programmable and physical options: check my video ALS bypass valve.

[@EngineeringExplained]

I don't believe so, but there are other techniques of reducing turbo. I'm sure they optimized the system for minimal lag, whether it be through turbo sizing, turbine weight/materials, bearings, lubrication, etc.

[@EngineeringExplained]

Haha but I don't have a green screen and a separate screen showing me what I'm looking at! I will try to address your concern, thanks!

[@EngineeringExplained]

Indeed it does!

[@EngineeringExplained]

Essentially.

[@smitty3624]

Very glad I decided to watch this before adding "ALS" to my to-do list on my daily.

[@EngineeringExplained]

I've seen his site, and someone told me he gave me a shout-out on twitter. He has a ton of good information on his site. Why do you ask?

[@EngineeringExplained]

Naturally aspirated engines have no use for "anti-lag." Anti-lag keeps a turbo running.

[@EngineeringExplained]

In the case of ignition delay, it could be done just using computers.

[@EngineeringExplained]

No problem!

[@EngineeringExplained]

Never heard of The Flying Lap, perhaps I should check it out.

[@EngineeringExplained]

I suppose, if they were at different pressures so if it was too high some would exit via the BOV rather than the anti-lag. Or if the anti-lag had some sort of electronic shut-off for the valve.

[@EngineeringExplained]

Correct.

[@EngineeringExplained]

You're welcome!

[@EngineeringExplained]

Relative to the pressures that the intake manifold could handle, it's quite minimal.

[@jostsimonisek5248]

You guys really have to put it on subtitles it's hilarious :D

[@vucci8378]

Great videos, for a video suggestion It would be nice if you did a Video on how Launch Control works. Along with what is the difference between Launch Control and 2-step Thumbs Up

[@EngineeringExplained]

Sounds like you probably know more about it than I do! Love that you drive a 99 b18b1! What have you done internally to support 12 psi?

[@EngineeringExplained]

Yes.

[@UeprototypingsocialPage]

My team and I just finished a prototype for an Electronic Anti-Lag System, I figured there would be no better place to seek interest than here. I explain it on my channel, and have an Indiegogo page for support already available.

[@torogami2]

Thanks for the video. I always wondered why cars like the ascari A10 had fire coming out of the exhaust.

[@EngineeringExplained]

Thanks, don't stop learning!

[@EngineeringExplained]

Some day hopefully. Basically they just cut fuel or spark at a certain RPM, thus not allowing you to exceed that RPM.

[@EngineeringExplained]

They use engine power, so they're less efficient. Turbos are superior from an efficiency standpoint.

[@EngineeringExplained]

Sure, it's possible. But if all you really want is flames from your exhaust you could just hook up a fuel line to it somehow. I don't recommend this, probably would end up with your car on fire. I do believe there is an aftermarket though.

[@joshmedlin7328]

you should rename your channel engineering tech school

[@wilsonwijaya.design]

Tofu school XD

[@EngineeringExplained]

Yep.

[@EngineeringExplained]

It could likely be done, yes.

[@pacoflyer]

Seems a lot of people are confused between an anti-lag system using ignition and a less efficient anti lag system using fuel cut. Which doesn't build the extra heat but also dosn't spin the turbine as much due to it just moving air and not a late detonation. Subarus and other cars using after market tuners usually use fuel cut method for their "launch control" and no lift shifting. Which artificially lowers the RPM limit to a predefined number for example 3500 rpm in first and will keep the RPM off of the true redline down to around 5000-5500 in between shifting using fuel cut.

[@MrCWH5]

As your trying to keep the turbo spooled you are also creating boost making this even harder since your on the throttle boosting the engine. Left foot braking, right foot spooling is not the fast way around the track. ASL on the other hand allows you to completely let off the accelerator and use engine braking power while keeping the turbo spooled and since the throttle blade is shut the bov will vent the boost until its needed.

[@Nazzawj]

just what i wanted to learn about. keep them coming, theyre great!

[@T25de]

used your video to help explain some of this to the wifey. def helped.

[@jodyleder5406]

Your videos are great, man. Very informative. Why flames out the back? Because Racecar.

[@LocoDingo25]

Thanks Man. Im, into cars But i still have a long way to go, and this video help me understand anti-lag system.

[@bradclarke6016]

@engineeringexplained you should do some 2 stroke stuff like snowmobiles with turbos

[@RawF4ce]

I might be wrong on this, but I'm fairly sure it has something to do with the engine's compression ratio and some engines having a ratio that doesn't work well with boost. Need more research on this, but its a start. cheers

[@tylertso8066]

okay i am subscribing. very helpful since i am interested in imports and might want to get turbo later on.

[@EngineeringExplained]

Very welcome, cheers!

[@Bones12x2]

You should have started with the Loud Fire Spitting part...its my favorite! :)

[@SimanSlivar]

This effect can also be greatly aided with the vvt system opening the exhaust valve sooner.

[@EngineeringExplained]

Space perhaps? And you need to connect it to the crank via a belt.

[@ryangarcia8165]

That is pretty accurate. Ford did a good job of taking a very bad and potentially catastrophic condition and re-defining it. Overboost is what he said: A condition in which your turbocharged system exceeds its maximum pre-set boost pressure and continues to generate pressure. When this happens a safety device is triggered and the engine is throttled back. An example of a safety device would be a fuel cut off, you can imagine what that does. Dont fool yourself into thinking overboost is ever good

[@EngineeringExplained]

Since the purpose is maintain boost, no.

[@Phobos_Deimos]

Very good and fast explanation, thank you!

[@rbjoseph25]

Always wondered why rally cars pop n crack when they let off the throttle. Thank you!

[@Trunxic]

A more particular question I had, and I hope you have time to answer. I was watching your recent "How to launch MT car" video, and I didn't fully understand how holding a turbo engine at a specific rpm doesn't build boost. For instance, my 07 STI builds full boost around 3500rpm, but if I understood you correctly, even attempting a launch at say 4000 or more would only supply the torque generated by the engine without the advantage of the turbo, since the turbo wouldn't be making boost. Why is that? Is it because, even though you're holding the engine within the boost range, the throttle is so close to closed (since it doesn't require much air/fuel to spin an unloaded engine) that there just isn't enough gas flow to actually make boost? I realize this is a complicated question, but your help would be greatly appreciated!

[@EngineeringExplained]

+Trunxic You've got it right, doesn't take much power to spin an unloaded engine at 4K rpm, so you'll stay out of boost.

[@Trunxic]

+Engineering Explained Thank you! That's super helpful. :)

[@EngineeringExplained]

Great, glad to help!

[@kedaotuning]

it couldnt been any better expalin then this keep up the videos.