Put a vacuum on the exhaust. Reverse super charging?

There needed to be an air seal between the hood and the air intake. That much gap was allowing the wind to blow around the air intake instead of building any kind of pressure. There should have been some kind of a gasket between the two, maybe a foam donut or something. If you brought the blue intake hose through the hood, you could seal around that with some duct tape.

I figured out what is wrong. The thumbnail shows a red hood scoop. But the tests were done without the racing red paint.

Thanks BMI Russian for always doing an awesome job and making it possible for us to enjoy good content!

You can't put the MAF in turbulent airflow like that, not to mention the housing you put it in was much larger than what it was tuned for (big no-no). The engine was running so poorly because it was running really, really lean. Really, you would have been better off just leaving it out.

I'm pretty sure the engine went into limp mode after the first run.

The subaru scoop is for the air air intercooler... 😂

so you took a turbo charged motor and made it naturally aspirated... The scoop on the subi is for the intercooler. To cool it cus its a top mount. To get better performance place a front mounted intercooler and use the hood scoop into the turbo inlet. Also .5 bsr is around 7 psi so a few holes in the wastegate line will increase boost pressure (old school way lol)

It looks like someone crashed into a snowblower with that thing on the front end... :P

Times got better with multiple runs because the computer learned and adjusted as much as it could.

?…so…the hope is that the ram air puts more air into the engine then the turbo? This would have been a better test on a naturally aspirated car.

The intake hose should have an airtight connection onto the scoop and the scoop should be sealed at the seams.

i like that your channel is working on other cars besides Ladas now. It is a much needed refresher

the scoop needs to be sealed together with the intake, or you loose most of the pressure

The turbo being disconnected, the ECM is still using the base turbo FUEL MAP, so it's going to run super rich... at least at WOT, it's still going to try to correct... He mentioning it at around 8:00. At least we should use A NA car with a MAP only setup.

"We disabled the turbo, now the air has a massive restriction sucking air in the blocked intake, the ECU probably went into limp home mode, but hey guys on the 4th run if I'm learning to modulate the pedal, I can feel it picking up."

Removing the turbo was your mistake

Have you guys ever tried filling car tires with water instead of air?

There is high-pressure air just above the bonnet and low pressure air 5 - 10 cm above the bonnet, you need high pressure air. So the stock scoop is in the high-pressure range and the make shift scoop is way above the high pressure into low pressure which is why its not boosting, the big scoop will have turbulent air inside and not only that it will have big drag also. If you had lots of smaller scoops on the bonnet leading into the hole it will make for better ram air. This is why fast cars have scoops on the sides and top of the car to get the high pressure air running along the body.

I did this to my tiny engine, can confirm the effect kicks in at 80km/h, wasn't struggling uphill anymore.

The ram only works at higher speeds. Cant do proper testing with it on lower speeds.

Great videos guys, how about trying replacement fluid for the brakes like water or maybe something else oil

I love how they’re using a 1/800 special edition car for this 🤙 very cool test

Amazing content, i would love if you tried linking a compressor to an engine

Whatever power games you get you're going to lose by aerodynamic obstruction LOL

The C6R Le Mans corvette would generate ~15kPa of positive pressure upstream of the restrictors @ 185mph on the Mulsanne. When this was simulated on the dyno, it was good for nearly 75hp

make a piston head out of a meteorite! lots of them are mostly composed of iron.

👌🤣👍this guy’s never cease to amaze us with their insane automotive experiments!

I played with these for years. the only thing that kicked the n/a into gear was perfect timed cams, symmetrical stainless exhaust, a huge throttle bore...and hovering 11 to 1 static compression...and a timing curve to work through the flat 4 flat spot.(you gurus know what I mean) Makes the turbo more appealing doesn't it.

That is a major improvement to its appearance.

This would be better suited to a normally aspirated car that has also had bigger injectors (to help the ECU inject more fuel in when air pressure increases). Also, there is a HUGE gap between hood scoop/hood and air intake. To do a 'Ram Air' type design, you NEED a fully sealed intake (as you got on Kawasaki's legendary ZZR1100/600 motorbikes, and all other 'Ram Air' designed engine air intakes since. It's no good having all that air collected, channeled down into a smaller and smaller area for it to then flow out before it reaches the inlet manifold. Ideally you'd want a wide mouthed 'Horn'/'Trumpet' design that squashes the large amount of air into a smooth unobstructed tube that reduces into a smaller and smaller area so that the air pressure increases as it enters the engine, like a natural 'Turbo'/'Supercharger' (the higher the vehicle speed, the higher the air pressure at front of vehicle). Also, collecting air into the wide mouthed 'Trumpet' inlet should ideally be where air pressure is highest, ie around the front bumper/grill area. 🤔😏 Maybe a future project - 'Ram Air' Lada? (Because even the old BUT FAST ZZR1100's were carburetta fed) 🤔😏 😎🇬🇧

This is awesome 😂😂😂 but will slow you down with all that wind catching it 😂

can you get a corolla box type then do everything on it. like maxed out for racing?

Make a funnel between the scoop and the maf sensor. the air will smooth out with no turbulence

You should have done a test with the turbo fully connected and giant scoop to compare it to the stock performance.

Please make video on bike USD telescopic forks obsorber use engine oil 10w-40 in USD fork suspension and drained fork oil..

what every subaru needs. scooby fanbois get your hood scoop from this man.

Whoop! I owned a Forester STI when I lived in Japan. Really fun car, same body style, I miss my SFSTI too fun .. Bonneville Salt Flats with that big old hood scoop might be useful ..

The ECU is still on standard setting. What do you expect then?

you should try on a NA engine from the factory and o 50-150 or some speeds where there is a pressure.

How about air conditioning for the intake charge or having the intercooler exposed to airflow cooled by dry ice?

Looks clean

Try boosting the intercooler with CO2 ice, or feeding liquid air to the engine, carefully of course and adjust the Lada carburetor / Subaru injectors of course for such massive increase in oxygen. If the oxygen sensor even can handle that.

A bumper scoop works just as well, but it picks up some dirt and is more aerodynamically sound.

I imagine this guy as the most proffessional garage shop owner at the counter.. & Meanwhile in the backyard: "Haha yt money s*ka" 🔥🔥🔥🔥

You should do more things with this car

What year and model designation is this vehicle, new to me in the U.S., another fun viddy, thanks.

You should be able to have a few psi of boost at the inlet of the turbo

Also check the scoop is airtight. You may have air pressure leaking out between the bolted panels. For an unobstructed view of the road, use a transparent scoop, made as one piece.

If this idea is what I think it is (ram jets for cars?). It cannot work with this test. Ram jets needs sufficient speed before it works properly (around 800km/h I think). This is when the air intake supersedes the drag. So maybe test it but not 0-100kmh instead 100-200kmh. 🧐

Vlad can turn water into wine

Beautiful car though! Wish we had that variant in the US. But I think we need a do over G54 with a seal between the intake and the hood. Not that it would matter that much without the turbo. But it would matter

I thought the job of that scoop was to cool the intercooler? I owned a few of these including a prodrive version and an imported stb version.

It will cause more air drag.

The reverse super charger guys idea is awesome

I have an idea for you. Install shock absorbers from office chair to car.

You need your scoop full with of the car. Like ram jet, it needs at least 200 MPH to work.

You should definitely try this again but with an N/A car. I think you would see improved results over stock power :)

It is very hard to get an air scope tuned properly.

Did this 25 years ago to a vw golf 1600cc above 140kph I'd had more power than the gti version plus my top speed was way higher too and everyone thought I was mad. Although my scoop was in the grill and not on the bonnet/hood.

Should have done this test with the turbo connected. That would give you true results.

Awesome content. This is well known method in boosting horsepower via the ram air scoops in Japanese sport motorcycles.

This is awesome!!!!!

Run a roof scoop the entire length of the car tapering smaller towards the intake pipe then run it to the MAF right before the manifold. This should create a rushing and pressurized air stream

What happen if you put a motorcycle engine in the trunk and have it rep to 160 mph or more and attachment it to the driver wheel tranmission. When put on neutral the motorcycle engine will take over. Lock on the neutral gear at 160 mph for boost. Can you make a video for that.

Am so excited to see this car.

What if you made an air scoop that covers the roof with a massive silicone pipe going through the cockpit into the intake?? Bet you get cleaner colder air up ther and it'll partially act as a spoiler to bob the whole thing down 🤙

I wonder if an NACA shaped duct would get better pressure.

Is anyone talking about the exhaust back pressure since it’s still plumbed to the turbo? One won’t work well without the other

Why didn’t you test the hood scoop with the turbo still hooked up? The engine is tuned for a turbo…..you’d have to be going 300 mph to somewhat duplicate the air ramming down that hood scoop vs a turbo!

The cars ECU is probably freaking out going from turbo to N/A.

can you guys test a Tesla valve on a na exhaust and maybe an intake?

I was expecting John McClane to pop out of the front holding a lighter 😄

Taking the maf out of a 2.75 inch pipe and installing it in a 4 inch one is surefire way to make it run like absolute crap. At least seal the scoop to the pipe. Would be cool to see!

MAF sensor doesn't give right readings if it is installed to different diameter tube.

i am not shure the size of the turbo and engine can handle that much air anyways, you would need a massive engine and a massive turbo to be able to use that much air. Apart from its not entirely sealed, alot of air is escaping the scoop.

Just wondering, that must not to be the most powerfull car/and gasoline engine anyways, if it takes around 30 seconds from 0-100km/h (for americanos it is around 0-60mph).

Anyone who ever blew an intercooler pipe off knew how this test would go

such a nice forester tooo engine clapped but dam the body is so mint

But you removed the intercooler? So no boost.....?

I wounder if they know that they are over spinning the turbo by leaving the inlet disconnected. This is how I killed a turbo on a build of mine (was driving it N/A to get the base map right without boost, killed the turbos bearings)

Have you guys ever put an engine upside down into a lada? I know it is off topic, but..

In the newspaper office somewhere: GUYS I got a REALLY BIG SCOOP here!!!

Prediction. It won't work as well as a turbo. A larger scoop will have little effect over a certain size. It just makes drag. Pressure boost at most car speeds is minimal. Aircraft are another matter.

What's up fellas

Should have done this with a naturally aspirated engine. Turbos gonna do what the turbos gonna do.

i think it's a little bit to....small It can be used as a sail but it needs to be bigger...yes because right now it's more like adding a big wall pulled by the car, and yes air can get into the engine but the scoop is unable to pressurise the air and to inject it into the engine

Can you put a Honda d16z6 vtec head on a lada engine for your next video

You unhooked the charge pipe on a turbo car? Good way to destroy a turbo making it over spin. Also as others said it needs to be sealed to even work. We know this works based on drag racers using this method.

The scoop needs to be lower on the grill and ducted back to the hood inlet

overfuelling (ECU is fuel mapped for the turbo) and exhaust restriction (the turbo) is bound to make it slower than stock, no matter what you do, with that particular car.

Pull a trailer with 20 Shop Vacs running on a generator, then bring the piping to the front of the car from the exhaust ports of the shop vacs, see how much boost you would get, then try sucking the exhaust and compare the power.

the Drag the scoop is creating 4 times more drag than benefits... =P

How much boost is the scoop making though?

Cars ECM will not allow engine to take in more air instead it will slow down the engine to make it run as normal as possible you have to tune the ECM to allow for more fuel

a thing never done : Step 1 : take a car, go to the scrapyard, put a small camera in it, put the car into a baller, compact it, show us the interior while the thing bein compacted. Step2 : Unfold that car and make it run and drive !

Thanks :)

that welding job though

Put a freeking back pack blower tube clamped to the intake tube i guarantee you will get boost❤😂

The scoop ideas wonderful but you have it too far back on the hood. The inlet needs to be further out in front of the car otherwise the front of the car won’t allow enough air to get to the intake. The nose of the car will push too much air away.