Extreme Cold Air Intake Testing - How Much HP Gain?

I decided to strap a big ole' pipe with an air filter on the end to my 2002 Nissan Sentra SE-R Spec V, and see how much faster it makes it.

[@HatersGarage]

So people are saying that I should have run a test with the hot-air intake with the hood off, due to the weight savings without the hood. Let's say the hood is 50 lbs, the math says it would help the 0-60 time by 0.10s at most, along with the aerodynamic drag possibly slowing it down a tiny bit. So, we can say that the cold air intake improved the time by 0.47s instead of 0.57s. Also the hot-air intake wouldn't really be a hot-air intake anymore with the hood off, as it would be getting all kinds of fresh air that it wasn't before. There's also the possibility that the long pipe I put on had better resonance, which improved the time instead of the cold air. But that's a test for another day. Thank you for listening to my ted-talk.

[@vaibhavbansal8741]

Maybe it's weight of the hood or off hood make whole engine runs cooler.

[@namenomad2088]

100% just the fact that the hood was off which flooded the engine bay with cooler air

[@wheniztheend]

Still should have done no hood with the hot air intake. Would have taken any uncertainty out the equation.

[@alexanderwoolley1623]

Really loved the video, I'd say your performance was mostly gained from the out of hood design having the filter in a larger volume of air, I've got all my cold air intakes running downstream either from the bonnit or the front bumper, I would look at in the future doing a battery relocation mod either into the boot or even behind the glovebox against the firewall, this is so you can make an air channel from the front bumper directing it toward the filter, not only gaining cooler air, but far more air than just being stashed behind the battery.

[@HatersGarage]

@@alexanderwoolley1623 I'm planning on moving the filter toward the fender along with a block off plate, and if I don't see the same performance that I did with the stupid intake I may add some hood vents for it.

[@kdesikdosi5900]

i love the drawing around the "activate windows" thing

[@ghezinho9049]

Almost didn't noticed it because it was overlapping with my activate windows lmao

[@alexanderwoolley1623]

Thankyou for pointing that out lmao

[@BuffMyRadius]

In 3 episodes the Sentra will have itbs, two separate plenums, and snorkels from Suzuki Samurais.

[@hellfiredreadnought4618]

I'm not entirely sure what the feeling/vibe that this channel gives me, but it reminds me of just some chill friends hanging out and messing around with stuff while tinkering and I love it.

[@Grimm-Gaming]

Reminds me of original Haggard Garage days.

[@Zoey_KL]

Braden Carlson before he grew up. Look at his old videos.

[@Grimm-Gaming]

@@Zoey_KL The Steve!

[@Zoey_KL]

@@Grimm-Gaming YES :D I got sad when Braden stopped making that type of silly content, and was the only reason I subbed. I'm glad someone else is just doing wack stuff with their own cars now, as soon as I found the crazy exhaust vids I subbed.

[@Grimm-Gaming]

@Zoey_KL yeah. I miss ...stupid car builds. Only reason i watch cleetus still is cause he himself is just so damn entertaining. I can care less about a 3000hp el camino but hes why i watch....

[@theslowcrx]

BABE LOOK HATERS GARAGE UPLOADED

[@jonathanbyrd90]

you're boyfriend doesn't care.

[@outdoordaily6463]

*sigh* “why don’t you touch me anymore”

[@johnm3907]

Are you not embarrassed by that comment.

[@patato5237]

thats not a cold air intake, thats a FRIGID intake

[@poprawa]

Nope, some dudes are using AC refrigerant loop to cool down intake air. This name is for them

[@Christdeliverme]

​@@poprawa Which makes no sense because all compressors shut off at WOT

[@smileyguyz]

@@Christdeliverme If you're running AC loops to cool down the intake, you probably know how to make the compressor run at WOT

[@alexanderwoolley1623]

​@@poprawathat's technically an exchanger intercooler nothing to do with the intake

[@M20AFKS]

@@poprawa im from canada trust me stock intake with -20c make my all my car faster i call this FROZEN THEY NUTS

[@MsGabriel36]

This channel its what all automotive content should be, no bs, no drama, fun, and being pretty honest, "ok you right, im wrong" isnt a thing we see a lot this days

[@dannyloughman]

The hood delete made the most power

[@AlmondNut]

Bro did all that work and *STILL* never Activated Windows

[@trulyirrelevant17]

You are definitely one of the car channels of all time I’ll give you that

[@IWantMyHortTruck]

omg babe exhaust guy uploafed (activate windows gang)

[@admiralnelson4225]

Keep it up with the good crackhead energy

[@Stona999]

Get a buddy to do this on his car and you can do an Excalibur style lance battle!!

[@HatersGarage]

HELL YEAH

[@zelashizzz1278]

Back in the day (circa early 2000's), I had an older prelude with a legit CAI, was hidden behind the front bumper inches from the ground. The ol butt dyno said it worked great. I ran through a huge puddle once and sucked water into the engine and luckily didn't kill the engine but it was a good reminder to put that bypass valve on that was sitting in the box, lmao

[@HatersGarage]

Yeah water puddles are the natural predator of the cold air intake

[@alexanderwoolley1623]

​@@HatersGaragekeep your filters freshly waxed and it's less of a problem, I've got my CAI on a 350z and that thing will never go outside in the rain, I don't wanna blow up my VQ

[@dumbestoyster]

You can get valves that go in the intake that solves that

[@rumgy4573]

Fact or Cap in less than 5 min. love this Channel

[@exaltedb]

finally, the colder air intake

[@andrasmolnar3331]

This really made my day, thanks a lot for all the good stuff on this channel

[@HatersGarage]

I'm glad you enjoy it

[@802Garage]

I might have tried the hot air with the hood off as well. Sounds strange, but the combo of lost weight and possibly somehow aero improvement could have made a difference. I highly doubt it though. That's a huge improvement. If you do make a proper cold air intake for it, test again!

[@HatersGarage]

I'd say the aero was worse without the hood, the reduced weight probably did help it some but not half a second worth. I'm definitely going to make a real CAI for it, and I will test with that too

[@802Garage]

@@HatersGarage Heck yeah man, awesome stuff!

[@haveaniceface7290]

Yeah how heavy is the hood?

[@CRneu]

I dont think the aero is gonna make any real difference for a 0-60 time above 7 seconds. The thermal difference is likely the key here. The colder air coming in plus the air going over the engine probably allows the engine to run a bit cooler and it's reacting by running a bit harder. When I replaced my radiator with a much more efficient one in my fiesta st i not only saw a few HP improvement but my mpg went up 3mpg as well. Some engines like to run a few degrees cooler.

[@802Garage]

@@CRneu Like I said, I highly doubt it, but scientific method means one variable at a time. ;)

[@Team-Aerio]

Glad I'm not the only one that listens to eurobeat while I drive.

[@huzudra]

Changing the pipe length could also be at play, you may have accidently found a better tuned length and volume for your engine. The intake becomes sort of part of the intake plenum at WOT in a weird way and intake pulses crashing into each others pressure waves do some weird stuff. Results inconclusive, more testing needed. You'll have to cut a hole in the hood and point the filter out with the same coupler it uses under the hood. But real talk, hemholtz resonance tuning in air intakes can yield some actual factual gains.

[@HatersGarage]

That's possible, when I make the real cold air intake the length of the pipe will be different, the results from that will tell us if it was the length of the pipe

[@huzudra]

@@HatersGarage That would be fairly hilarious if you accidentally stumbled on the optimal length of pipe to gain the most power for your engine. Maybe next you'll build some intake manifolds or play with ITB's and runner/trumpet lengths, who knows.

[@kotindustrie5584]

Love these vids, no bullshit and actually doing those experiments right. Keep it up

[@Hoft236]

Man, this channel is priceless... keep doing this type of deal, it's friggin awesome

[@ianfairbanks1318]

Love these crazy shenanigans. please sir, more!

[@rileypaterson7117]

I love using the draggy to test my cars ! They definitely are becoming more popular. Glad you have it to test your mods. I love the style of your videos keep it up 😊

[@haventcenathing]

Greatest automotive channel of all time

[@gredausvemiru6236]

Bro your channel is a glod mine. Funny, straight to the point, side by side comparison between previous projects... You name it. Great stuff

[@EGSKillshot]

I've been waiting for you to upload bro.

[@KurumaDesigns]

Another banger upload, makes me want to test this on my e36

[@snickerdoooodle]

The B15 Sentra line was my first car and you're really making me want it back lmao

[@wizardman6979]

This video is amazing cause I literally just got parts to make my own intake, and now I know that a heat shield is something I definitely want haha

[@Drunken_Hamster]

With slow, slowish, and average cars I find a 20-80 and/or a 20-120 roll race to be the most satisfying. Really just any 20 roll in a slow to average car is satisfying because you get to start in the only gear that gives you the throwback(first), but at a reasonable about 1/2 to 2/3 the rev limit. IDK if draggy lets you record your own splits or only preset splits, but if it does let you customize the run, I'd be running 20-80s all day on anything at or worse than 15lbs per hp. Also, having the hood off might be worsening the aero drag enough to make a difference, too, so if you move the battery to the opposite corner of the car and make a cold air box in its place that pulls from a ram air bumper scoop, you'll see the best improvement, yet. Especially if you make something to vent hot air out of the engine bay and insulate (either with reflectix or actual insulation of some sort) the CAI box as well.

[@HatersGarage]

I enjoy launching this car because the 2.5 is so torquey down low, it only needs 2k rpm at launch and still spins the wheels

[@Drunken_Hamster]

@@HatersGarage Hey, fair enough. If my 2.3 Ranger wasn't so much of a clunker with all the slop in the GD driveline and suspension, I'd probably feel the same. I really shouldn't have financed this fuckin thing, TBH... I wish my tC didn't blow up... Shit, I wish my Ram from back in the day wasn't a quad cab because I genuinely wouldn't have cared about the economy if that thing were a single cab short bed. And if I did, I'd have swapped it with an OM606 by now.

[@Lee01Mr]

Ah another redlining video of the Nissan. What not to like, keep 'm coming

[@narancs5]

Gotta love the PowerPaint presentation.

[@Andrey_ny3blpbkoB]

Yaaa, thnx for vid!! Cheers! ✊ Stupid intake = windy compressor! Waiting next test 🙂 Your Sentra have a fun life in good hands : )

[@hufman9807]

Should have just checked intake temps with each filter

[@gwc_garage]

Ayooo thats one heck of a voice, I was not ready, i didnt think my phone speaker could convey that much bass

[@lolfungreg6964]

Lovin it, as per usual! Maybe as a middle ground, you could have tested the hot air setup, but with a dedicated air duct to it!

[@xtbb1369]

Awesome test, you should try a velocity stack with a big honking pod filter next

[@vulcanizedanthony145]

When I had my '02 Celi GTS I had an injen short ram intake on it, I took out one of the side foglight covers and used some 4" drain tile from Menards to pipe it up to the side of the filter. It dropped my intake temps by about 8C while rolling and made the coolest sounds ever. Imo that's the best of both worlds, as long as you're not in stop and go all the time it helps a lot with intake temps, but you also get the lower restriction of having the shorter intake pipe. I never tested 0-60's and I don't think it'd help that way but it definitely had a lot more pick up while it was rolling bc of added airflow and better temps

[@ChrisOnez718]

love the graphics at the end 😆

[@studecker2289]

You're awesome! Thank you.

[@chaoticpuppet1]

I just subbed. I also just switched back to my OEM airbox from hot air because squirrels

[@FunkMasterWood]

I cut a hole in the hood of one of my SpecVs, made a brace that moved a small portion of the filter above the hood, then put a Z31 hood scoop over it. I also spaced the hood a couple inches at the hinges. It really seemed to help with getting cooler air to the intake.

[@benedictroberts678]

It's probable that there's the weight loss of the bonnet being off in those numbers too, you can get pretty good air flow out of the engine bay with spacers between the hinges and bonnet, the air flow now extracting hot air.

[@HatersGarage]

The weight of the hood should only effect 0-60 by 0.10s max, plus the aerodynamics are worse without it so I didn't see it as an issue

[@SystemofaDowns]

@@HatersGarage Genius! 👌😃

[@SystemofaDowns]

You make excellent content 😃🤌

[@thomasmm415]

You are so entertaining, almost fell in love. 😏😅

[@riotcailin]

that was nuts

[@ARockyRock]

that aint a cold air intake, thats a dope air intake, damn bro

[@Tappar1]

Missed opportunity for adding an extreme (bucket?) ram air intake to the extreme intake test!

[@kepofshangri-la8942]

I'd love to see you compare all of this with the stock intake.

[@djhero0071]

The shit this man has done to that Sentra is both inspiring and borderline an automotive war crime.

[@karelpgbr]

Eurobeat while driving is the best man

[@RapidRedRider]

Removing the hood is probably what had the most effect tbh

[@ExiledWolf84]

I love how random that ending of the video was!

[@Stevelangdon93]

Forgot to test the air box, but this is interesting stuff

[@BeforeZack]

this video proves what I’m about to say, but with oem intake on my car it would heat soak after the first pull and power would drop off dramatically even with the filter taken out the box. Replaced with a cold air intake to the fender well, and had no drop off of power so it definitely works. I had the stock exhaust so it wasn’t any faster, your exhaust is supposed to be tuned to your intake and vice versa for optimal gains.

[@CreamAle]

Giant dose pipes, gotta get the KeepItReet fellas happy with zootoootoootoos from a turbo. We already have some wild exhaust, não we need to turbo it and get the Zoots going.

[@5say307]

The unicorn intake 😂❤❤❤

[@NeverLetOff]

Maximum safety!

[@NilsOberheim]

When the air filter is hanging outisde its basically an ram air intake. The faster you go the more Air is pushed in. Basically like a very small turbo charger

[@caffinatedraven]

Eurobeat is the vibe fs

[@briansuderman5597]

Playing Eurobeat instantly improves 0-60 time

[@caffinatedraven]

@@briansuderman5597 facts

[@A2J_Tim]

are you sure that silicone tube isnt collapsing when the hood is on when with engine bay heat? I have seen those couplers do that before, I diaged an s14 that fell on its face with hard throttle, it was a strange one but I eventually found the tube was collapsing as the engine sucked in air when the car was hot and the silicone got hot.

The open hood also made the temperature around the air pipe lower, so the result is deceiving. There, the lowering of the temperature of the air pipe was also simulated.

[@djcybercorgi]

What about a RAM AIR intake now?!?!?! GREAT VIDEO!!!

[@48walk]

My goodness🔥

[@7mgtesup1]

When doing acceleration tests I would use 3rd gear and accelerate between two speeds that fall between 2000rpm and just short of redline. That way you don't have gear shifts and launches that can make well over half a second difference if not perfect every time.

[@alencarlerbach5796]

Hell yeah

[@busterscrugs]

half a second is crazy

[@JimJamShimmyShatts]

Do you think the longer intake runner accounted for much of the additional power? I've seen other people test that with positive results. Might need to figure out how to do a hot air intake with the stupid long runner

[@rigelparker3802]

It's not a B15 Sentra without some zipties. Cool video!

[@gohachi5313]

I think that your improvement in time came more from the hood weight reduction than the intake. If you added a sandbag at the equal weight of the hood, that could have helped the validity of the science, but I still appreciate the dedication to testing.

[@dakotajones8010]

my buddy tunes Hemis we've been telling people to go back to the stock air box, its sealed and has plenty of air for the engine and the aftermarket intakes either give you hot air or false knock. We did hours of logging on a tune device. still curious to see if intake manifold porting and eventually head porting will gain anything even on a stock tune.

[@noobricer]

I like this channel. Half stupid half mad tests, for the sake of the audience 😂😂👍👍

[@matthewbishop776]

Hey I love all your videos. I live in the same town as you and I was wondering if you wanted to experiment with different V8 exhausts. I can pay for the materials

[@EGSKillshot]

I Just got recommended the dual exhaust video, and after watching it again, I decided to come back here with a question. What if you put a resonator in the pipe, I was thinking widening the pipe in the middle would make it sound even deeper.

[@garyperkins5603]

I wonder if that intake would make a huge difference in the winter

[@garnerblair5179]

Has a jousting vibe

[@alonecardenas7922]

Do a Leaf blower turbo next!!!!

[@MissingLinkGTRS]

For a less out there way to fit it as a cold air intake you could try and find a way to route the intake to the front near the grille portion of the bumper idk how you’d do it exactly but food for thought

[@supaoranges1086]

New suggestion, hood scoop + hot air intake. The best of both worlds, just don’t drive it in the rain 👌

[@jeraldjoyce2995]

you should do autocross with this new, coldest air intake.

[@groovealate74]

Yes, I loved the chirping birds.. HAHAHAA!! Just added effect🤣👍🏻

[@hamzawerks]

new Haters Garage video HELL YEAH

[@lukasbuhler1359]

I’m curious to see how much the hood impacted it. Rerunning all of them with the hood off would remove another variable

[@benkappaa]

it might become faster if a better placed intake(or an intake with a heatshield and air ducts leading to it) plus having the hood on as it will effect the aero. But the times might be better cus of the weight of the hood not being there.

[@KiraSlith]

I bet doing a janky air scoop hood (just cut a hole over the air intake, bend until it's horizontally flat, tack in some steel triangles to hold it in position) would get a similar performance boost to the cold air extendo snorkel.

[@pugs1377]

Would have been interesting to see what the stock air box did too

[@Joshua-YeetRat]

original position for the intake and get a offset hood vent/intake thingy?

[@kmemz]

You could try the hot air intake's setup, but make a vent that directs air from across the top of the radiator towards the intake and a heat shield between it and the engine. Would it be chilled enough to make a similar difference?

[@HatersGarage]

Probably, OEMS do something similar to that

[@bakedandsteaked]

Wondering if the gains came from cooler intake temps, more optimized flow characteristics, or both, but either way that seems like decent gain

[@NotAGerman]

Indeed.

[@MetallitiGames]

Doesn't a longer intake also produce more HP? Double gain?

[@garrettbaldridge1597]

That’s nuts had me dying

[@kristianklaucke3926]

Im just curious how routing the aircon to the air intake would affect performance. Aircon systems add nothing to performance infact, they only draw power and add weight. Hot air contains less oxigen then cold air but how much oxigen does the air contain coming out of the airco? If you could reroute one vent back into the enginebay and onto the airbox or something, would this improve anything?

[@Jdogblingbling]

Maybe a hood scoop to funnel some air to the hot ram intake?

[@johnd5619]

very scientific, i must say

[@danielbready]

Bro your engine is pretty clean, how to clean it? With what? my 1.2 litter corsa with 85Hp need some excessive cleaning

[@donald4095]

I know with boosted LS motors after we tune them you can take that air filter off and get 80 horsepower

[@eryczakpl2337]

This video worries me because I'm about to boost my car and didn't think intake would be important, I might need to upgrade the setup 😎

[@FlyingSpur99]

Battery relocation and induction headlight next?