We make a ram air intake for a Subaru - will it work?

[@T_Burd_75]

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.

[@UberLummox]

I think you're on to something. Underrated comment. Also my last name is even spelled the same as yours, which is kinda rare. 👋😁

[@SwapBlogRU]

To me it looked like that footage was filmed while they were still putting the whole thing together, I'm pretty confident they made sure everything was sealed for the actual testing.

[@murmenaattori6]

​@@SwapBlogRUThe scoop itself should also be sealed at the seams to be able to build pressure.

[@Randomii666]

Yeah the mounting holes on the scoop and the gaps between the scoop and the hood and intake pipe are a big issue. The idea would be to take in large amount of air, while compressing it down through a smaller diameter opening, which creates pressure and accelerates the airflow. As the scoop was basically a funnel, it would had needed to be airtight. No holes and a seal between the scoop and the hood. And we never really saw if there was a seal between the hole in the hood and the intake pipe, if not, the whole scoop would had been pointless. But as it had holes and no airtight seal, they were basically just blowing air around, but not building up any pressure

[@thegrimreefer3185]

@@SwapBlogRU If it was properly sealed there should have been a gasket of some kind on the hood and there would have been a pan on/under the plumbing the MAF was in before they put the screen over it. Additionally, 0 to any speed really isn't relevant to ram air intakes. There's little effect until at least 30 mph. So roll on testing would have been more representative. Granted, the amount of drag a scoop that size will cause will outweigh the benefits and without a seal, most of that air is just being funneled under the car through the engine bay.

[@kennethcohagen3539]

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

[@gaveintothedarkness]

Exactly!! thats like 20HP right there!

[@enzorum2560]

come on, way more than that!​@@gaveintothedarkness

[@gabrielv.4358]

lol

[@glitter_fart]

if they add a strip its another 00hp easy

[@Papawheelie57]

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

[@burmesebeef]

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

[@ouch1011]

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.

[@Afrorack]

So u think they don't know all you are saying? This channel is all about experimenting

[@murmenaattori6]

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

[@Quake_Masta]

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

[@seymoarsalvage]

Thats exactly what happened. Seems like Vlad knew that too

[@That1Blob]

yea cus i know that ej205 pretty much inside and out and i had a boost tube pop off on mine and it literally wouldnt idle it would just die so its a miracle he actually got it to run

[@TheonenonlyGraffy]

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

[@rickyhanson1189]

Thank you. They need to properly weld the pieces together so the pressure won't leak through the seams.

[@TheonenonlyGraffy]

Yes that too, the hole system needs to be air tight then they should make some pressure.

[@therealboofighter]

I was going to say the same thing.

[@RevO-One]

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.

[@crankyboris]

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

[@GroovesAndLands]

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

[@glumpy10]

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

[@k20Fritz]

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)

[@DarkAttack14]

See this is why I like variable geometry turbos, on my passat I can get any PSI from 0-26 by tuning it to whatever psi I want. If I wanted I could progressively ramp up the pressure from idle to redline, I could change the pressure per gear etc. Variable geometry is slightly more complex but certainly worth it! No messing with wastegates and on a diesel of course no blow off valve

[@CenReaper.]

5 bars is about 100 psi

[@natedogg1238]

?…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.

[@boronat1]

yea makes no sense

[@Novous]

The point is a turbo car computer and sensors are built to measure and adapt to pressurized air. A naturally aspirated car can only go up to 1 ATM and will lean out after. So you compare the car power output running at slow speeds vs high speeds. It doesn't matter that it's slower than stock, you're measuring the difference at speeds. That of course won't help their no seal intake design though.

[@spazbite91]

@@Novousit wont help with a turbo car anyways. No way will this force more air than the turbo is already gonna give it. Only way i see that this may be beneficial is to help cool engine since it isnt a sealed intake system . But even then i doubt there will be any if at all difference in power.

[@natedogg1238]

@@Novous if they were testing with a carb that makes sense but anything with a MAF, ecu and injectors should change the fuel maping to match the mixture in this scenario.

[@StupidBlokeStupidVideos]

Yes. I did a similar test in a naturally aspirated car on my channel

[@bgd73]

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.

[@twocvbloke]

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

[@UberLummox]

👍

[@volvo09]

Haha, it does!

[@stephaneperron727]

I thought it was a snowblower chute at first. 😅

[@cmuller1441]

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

[@rubiconnn]

I mean it's more for looks than anything. The tiny amount of boost they come with doesn't really need an intercooler.

[@bills6093]

@@rubiconnn Is 7 PSI tiny? He said the gauge at stock went to a half bar.

[@ichiroudesu_.]

@@bills6093 7psi is tiny... im conservatively running 21psi on a VF48 running E w/ Speed density, even then 21 is little for the rotated guys lol Tho that SF Forester was definitely still on a td04.. Those max out at like 17 anyways

[@pottacoola]

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.

[@oubliette862]

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

[@KiwiBay2.0]

May as well make some tires out of granite rock lol.

[@chickenray182]

Helium could be interesting.

[@volvo09]

Off road rock crawling guys with light buggys do it. The big tires can hold like 80 lbs of water and help with traction.

[@oubliette862]

@@volvo09 water and calcium an other fluids are used in tractor tires to, that's what made me wonder about cars because they go faster.

[@SwapBlogRU]

They did fill tires with water, but I don't think I translated that one.

[@christmassnow3465]

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.

[@irawantanujaya]

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

[@mrtommyboy926]

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

[@thedarkknight1971]

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) 🤔😏 😎🇬🇧

[@markcole6475]

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!

[@universetechnique]

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.

[@Survival_is_Key]

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

[@KnifeKnut]

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

[@I-didnt-ask-you]

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

[@texsizeParrot]

Removing the turbo was your mistake

[@naushrhyman6325]

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

[@travisrichmond3797]

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

[@dav1dbone]

"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."

[@rendHELL06]

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

[@nikkids0272]

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

[@herrkulor3771]

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.

[@atlasgunther8947]

It will cause more air drag.

[@richolishis94]

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

[@subiemad6073]

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

[@Superrandomz768]

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

[@peraz968]

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).

[@CenReaper.]

Yup

[@LookUsArts]

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. 🧐

[@pepperfish_]

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

[@CLOCKCHASER2222]

Try a parachute next time rather than an engine

[@seymoarsalvage]

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)

[@avgfinnishdude]

thats the purpose of a wastegate.. nothing to do with intake

[@Mastermindyoung14]

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

[@67comet]

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 ..

[@tydevries9027]

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

[@OscarWithC]

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.

[@Thunderstormworld]

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.

[@kennethcohagen3539]

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

[@ayuse01]

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.

[@danmaycock9238]

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 🤙

[@anibalbabilonia1867]

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

[@MrRicksta0433]

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

[@buzzedalldrink9131]

That is a major improvement to its appearance.

[@alexmann3309]

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!

[@joejoejoejoejoejoe4391]

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

[@fordxbgtfalcon]

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

[@Barbosa9066]

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

[@AdamSticksNTricks]

That is such a cool gen 1 Forester

[@bitkarek]

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

[@jannekarppanen9346]

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

[@themetalslayer2260]

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

[@wendellsmith1349]

This has almost no way to control the flow other than driving speed which changes. Then you have added a HUGE drag coefficient.

[@andyrantshumanphilosopher7571]

You took the turbo off. The ecu has a fuel map dependant on air flow. If you make it naturally aspirated and just have atmospheric pressure, the car reaponds by delivering less fuel, and then you have a massive decrease in horsepower. This was never going to work as a performance boost.

[@jwalster9412]

I think the theory was that the massive ram would add a boost, but I can see a flaw, that's not going to work unless you go really really fast, and at that point it's pointless

[@josecfish5297]

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

[@johnpodo]

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

[@Garrett053]

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

[@bullhead401]

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

[@666cemetaryslut]

They did that already

[@adivarso8175]

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.

[@petelattimer6808]

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.

[@DrMario69]

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.

[@TheHungrySlug]

Yes, the over-spool had me worry for all of 3 seconds, before, I remembered who was working with it. It'll end its life in these "Tests" that Garage54 will do with it, haha.

[@johnbelwell2461]

This will work to some extend but not with a scoup, they need a venturi, a giant funnel that is connected to the intake with a sealed joint, this open pipe config is totally inefficient.

[@riderboyshahbaaz2396]

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

[@Madkite]

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.

[@AlienLivesMatter]

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

[@turbotunna3794]

Hold up - you 'disconnected' the turbo but left it bolted on? So you have a lovely intake and an exhaust with a MASSIVE restriction? Not only does it still have a turbo tune (and would have been trying to compensate for the lack of airflow) but no exhaust scavenging and what is basically a 2cm diameter pipe blocking the exhaust. It would have had exh gases being blown out the intake almost the whole rev range so definitely no boost happening here!!

[@therodenthitman]

So the hot side of the turbo is still getting the exhaust air? Its working to turn that turbine, getting none of the benefits. The ECU is probably taking a shit and just trying to get you home, do it with a NA car.

[@Śiśna3633]

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

[@JonathanTamm]

With a drag CD of 1.2 it would struggle to get to 80 kmh and 1/2 that in a strong head wind.

[@michaelhamilton3778]

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.

[@Leland387]

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

[@cookiehead.]

You should do more things with this car

[@jameswik212]

You need a ratio of 14.65 liters of air to 1 liters of fuel, so if 1 square meter gives 58 liters of air per second you can use max 3.959 liter of fuel per second, if I got this correct..? That is a lot, why not quicker than 32+ seconds to 100 km/h?

[@R3LLIK24]

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

[@battlefieldP4Fbeta]

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

[@DaBrute]

Why not start with an n/a car to begin with?? The tune will be way off without the turbo to notice any appreciable difference...

[@JonathanTamm]

How to up the drag CD by 50% and 1/2 the engine power all in 1 go.

[@MiataMan383]

What if you had one engine per rear wheel? Two engines for 2 wheels.

[@omgwtflmaololrotfl2368]

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

[@reedvending2384]

no seal between the hood scoop and inlet pipe

[@Intergalactic2000]

Put a carburettor on the front of a big turbo to increase horse power.

[@dnukem1722]

Should have put the scoop into the inlet of the turbo to test your idea 🤦🏿‍♂️

[@craigmose5898]

Shouldn't of put the small screen in the intake restrict air flow all but 1/2...

[@Wreck-Gar]

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

[@ADoneGooner]

On the return runs you may have been in a headwind ? If you booking a tailwind one way and a headwind the other or possibly and a slight ever so slight grade up or down hill then....uh....curvature of the earth maybe? Earth's biased rotation? The moons tidal influence? There are many potential variables there. One might even look at the twisting influence our galactic core may have....😂❤

[@Pulverrostmannen]

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

[@joe125ful]

Why remover turbo??? It not make sense.

[@shrapnut7612]

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

[@seanwallerman7410]

1998-2002 subaru forester. This one is an XT model, which were turbo charged. They were sold in the states from the very beginning.

[@syahidhidayat4733]

Ram air have to seal properly to not let the air loose

[@explosive_shart9405]

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