100%

Also the only reason I'm keeping my CAI. Sounds cool even though it does absolutely nothing for performance

awesomeness is a must !!

No complaints. The intake sound though!

Awesomeness does increase HP!(Happiness Power)😆

Tim Oyer excellent insight. Thank you.

+Tim Oyer Great, informative answer. Thumbs up! You missed just one important thing... Engine sounds so much better with ITB's :)

Saved me a comment, thanks.

laferrari uses this thing

@MDS your comments started off topic. You missed the point of not only the class but the OP gains. You are on the wrong side of the equation!

F23 r nice

Sacha-yves jean-louis thank you! Drive by wire sucks!

@@breddary how to get good throttle response on a drive by wire system? I ask because it seems like no production car made today has drive by metal cable anymore

@@treerexaudi I think it's ECU tuning that does it. A lot of the time, pedal position is not mapped linearly to throttle position. Since the ECU pretty much does everything, then... Also consider that leaner fuel mixtures make it harder for the motor to rev quickly. It's why most small engines with turbos end up not being that much better, they have to inject a lot more fuel when you floor it to get it to spool quickly and _then_ lean out.

@@lfox02 2020 honda civics have extremely bad throttle response

And it seems that weatherproof cold air intake is easier to do on non-ITB setups.

Lag is probably not important on forklifts unless you're racing them.

@@TucsonDude it helps with precise manipulation though

@@TucsonDude who says he isn't 🤣

@@its_only_karma7440 all the forklift drivers drive them flat out.

@@TucsonDude it is actually very important. Some of them have auto bleep systems when you ask for pressure to tilt the forks for example and Lagg can stall the engine.

i think even newer motorcycle use ITB bcs u need a sharp engine response in a performance bike

@@user-ef3om4jb6s I wouldn't say my motorcycle is new being a 2005 FZ6, but it's got ITBs in an airbox.

You, my dear sir, are so lucky it's not even funny. I could trade for that position in a heartbeat if I had the option to.

@@saumabhobagchi5547 I am a lady but teehee, thanks so much!! May one day the Universe give you ITBs!!

@@BabyxBandit Thanks. Appreciate it 😊

@@saumabhobagchi5547 You are so welcome!😊😊 Have a good day and happy new year!

@@BabyxBandit A very happy new year to you too 😊😊

Pulsar gtir had the only sr20 which had itb

Nika Tskhovrebadze was also the most powerful

That is true however it's a pity with how Nissan designed them. I don't understand why they went to so much trouble to make an ITB setup and then to compromise the design that badly.

How is the consumption

what they do i can help with, rather than trying to feed air into a straight ended tube the velocity stack creates a larger and smoother surface area to pull air into the tb, resulting in a smoother flow of air. think of it like a funnel if you will. hardly a scientific answer but hey it might help you understand them a little better - cheers

Not quite correct. It makes the air transition into a smaller area. This reduces the pressure of the air but increases the velocity as it comes into the engine. You want somewhat turbulent air in your engine for some reason that was explained to me but I forgot.

thegarage.jalopnik.com/what-are-velocity-stacks-and-why-you-want-them-on-your-1792235442 create one with carbon fiber, then put a servomotor for each to modify the legnht then put the engine on tuning and vary the lenght for different charge and rpm and you get the most power from them for each point of the map. you should tune them for each cylinder

To feel the difference, do like this: Make a pipe in paper, 100mm long and 40mm in diameter for example Blow air through it with your mouth and put your hand in the other end to feel the air flow. (remember the flow) Then insert a "velocity stack" in the pipe, make the stack of something harder(cardboard, plastic etc) Blow through and feel the flow again and you should feel that the air hits your hand faster/harder than it made without the stack! The velocity/speed of the air has increased because of the smaller area in the pipe.

Several of you guys are mixing velocity stacks with air horns. Its certainly true that this shape is beneficial to flow compared to an abrubtly cut off pipe. However there is more to true velocity stacks than this. When the intake valve closes in your engine, it creates a small pressure wave travelling outwards through your velocity stack. Now from this point on, my knowledge is a bit sketchy but ill try to explain the basic concept. Anyway, when the pressure wave reaches the end of the stack, the pressure drops dramatically because of the increase in volume, and this in turn creates another pressure wave in the opposite direction. The idea is to tune the length and shape of the stack to harvest this pressure wave as the next intake cycle starts to help with initial cylinder filling, sort of like an opposite scavenging effect created by a properly tuned exhaust. In this way, it is in theory possible to create an engine with a volumetric efficiency greater than 1, or in other words, an engine which passes in one revolution more air through itself than its actual engine displacement. Now i am no fluid dynamicist or expert, just an interested layman. I'm not sure how or if the horn shape affects the pressure wave itself, but i would think a straight tube would create a stronger pressure wave, but naturally the intake needs to flow well. possibly in a straight cut off intake pipe, incoming air would cancel out the pressure wave due to turbulence from having to change directions sharply.

Makes his guns look bigger

See if you can find a video of a engine that received incorrect break in. I can't find it. Point is I don't think you would know if the break in was correct or not.

Pretty much most cars run single throttle bodies from the factory as they're cheaper and simpler and throttle response is not the highest priority. Take almost any Toyota, Subaru, Ford, Chevy, you name it, it'll have singles. Certain high performance engines, such as the RB26DETT in the R32-R34 GT-R, and things like BMW's S65 V8 and S54 straight-six (E9x M3 and E46 M3, respectively) run individual throttle bodies from the factory though, because they're in more expensive cars to begin with (budget doesn't matter so much), and are built with high performance, and thus great throttle response, in mind.

P1 Race Photography Thanks bro, exactly what I was looking for. cheers

I'm not sure about these days, but I recall motorcycles used to often have individual carbs for each cylinder - I'd assume at least some are now using ITBs, most likely restricted to the high-end sports models. Thoughts, anyone?

aussiebloke609 Correct, pretty much all multi cylinder bikes have ITB's. Older bikes had independent carbs and more modern fuel injected bikes have throttle bodies and a fuel rail + injectors (or multiple rails for v configurations). That's why bikes sound so good!

Thanks for the response, Coldfin9er. I've only had old bikes (the most modern was an '81 Honda RS25 - everything else was from the '70s. So I could make a rational guess, but didn't have the actual experience to say for sure. :-)

Very few cars have individual throttle bodies but it's the norm on motorcycles. The only bikes I'm aware of that don't have ITBs are some old v-twins where they share a carb between the cylinders and some 6 cylinder engines where someone decided it'd be cheaper to use 3 carbs instead of 6.

Scott Moore any car with an RB26 swap or a 1989-2002 GTR has ITBs unless changed.

Travis Wiebe pros reduce lag, cons engine temp increases

It's because there's allmost nothing to muffle the sound of engine sucking air. Especially when you have vvt like vtec or vanos, you can really hear it kickin' in