Ever wanted an easy explanation of how boost pressure works? Well here it is! This series is proudly brought to you by Mighty Car Mods and GFB www.gfb.com.au www.mightycarmods.com
Пікірлер: 199
@scottroberts31587 жыл бұрын
I'm a car guy and have been as long as I can remember, and I thought I knew about pressure ratio's and everything else mentioned but I learned something, thank you! well done and please do more video's like this.
@brownshit17 жыл бұрын
Absolute vodka to measure absolute pressure...
@kjenk197 жыл бұрын
GeebusCripes and Boost to measure boost! 😱
@RegularCars7 жыл бұрын
This was really informative! I like it !
@EdwardAlcala7 жыл бұрын
RegularCars I like you.
@liamhazardcornec77537 жыл бұрын
We need to chat on fox in space stream discord again it was fun
@theend15557 жыл бұрын
DAD!
@jamesflores94567 жыл бұрын
BROWN
@mdace147 жыл бұрын
But mum!! It has a turbo for efficiency.
@KieranSmit7 жыл бұрын
This has been the most interesting episode in this mini series yet!
@mitch81987 жыл бұрын
Good to see Go Fast Brett back on the channel!
@fulltiltdrift7 жыл бұрын
gatta say i definitely appreciate the Go Fast Brett episode series.
@QuickeMart7 жыл бұрын
brilliant clip! this answered so many questions for me, and the oil/liquid was strangely hypnotic...
@RickardsGarage2 жыл бұрын
Great explanation, thanks 😁👊 I drive for Saab Turbo and made a hole in my Hood so a bit of my new High Flow airfilter sticks out and breathes cold air, it made a huge difference in performance. Heat is also a thing people forget to take siriusly I'll think and I will work much with heat transportation this winter.
@Badxperiment7 жыл бұрын
For sure helped me understand this better. Living at high altitude is quite annoying.
@w1ldyovvnz7 жыл бұрын
look at the bright side, when you do go down to sea level you'd have more power than your used to
@SlingSalsa7 жыл бұрын
I hated my move from DC to colorado, I lost 34whp on my n/a accord way back then also I have to say; fuck 91 octane #100octlife
@NoSkates7 жыл бұрын
It might be annoying now, but you must feel like a superhero at sea level.
@TotalDbag247 жыл бұрын
I just came back from a 2 week vacation in colorado. It was quite fun experiencing turbo lag. (my car has a small turbo, so it rarely lags) Mash the throttle and very little happens, then like 1-2 seconds later you take off like a rocket ship.
@_Belteshazzar_4 жыл бұрын
*laughs in Floridian*
@101Twigz7 жыл бұрын
gottit drink vodka drive faster. thanks brett
@Iucien7 жыл бұрын
Great video learned a lot. I'm not sure if you guys take technical questions or maybe someone in the comments knows this but I'm still wondering if the same boost pressure affects power if the turbo is different. For example if you ran 17 psi of boost through a stock turbo and 17 psi of boost though a much larger turbo is peak power the same? I understand that the response and other factors would be different and the larger turbo is capable of holding more boost but i'm wondering if there is a benefit at the same boost level.
@vopall7 жыл бұрын
Thanks for all the valuable info Brett.
@brendonv1017 жыл бұрын
nice video. Almost all mining equipment and some cars have atmospheric pressure sensors as well as map sensors (some use the map and have a vsv before map to read atmospheric on startup) to read the atmospheric pressure and adjust the fuel map.
@BatteredSav1007 жыл бұрын
awesome to see go fast brett back
@jasonbora17 жыл бұрын
Vert good explained about the nessesary of intake modify for turbo cars
@BorisFett7 жыл бұрын
This series is great.
@XDevolution217 жыл бұрын
these explanations are fantastic.
@vtr01047 жыл бұрын
Brett is back, people!
@GreenyOfficial7 жыл бұрын
Dope intro!
@splooshmccooch28627 жыл бұрын
Woo Brett it's been a minute was wondering if you were still alive bud
@ollies20007 жыл бұрын
Cool! First time I've learned something watching MCMTV2 ;)
@glynecollymore55695 жыл бұрын
Thats really a simple way of explaining thanks
@CageyJ0nnY7 жыл бұрын
Great video, I learn't a lot!
@vourkosdude7 жыл бұрын
can you please answer me this? in stock performance unmodified cars, which one is affected by altitude more? a turbo or an NA one?
@shannonsisk7 жыл бұрын
These videos are awesome
@HorseFeather297 жыл бұрын
this was great! thanks man!
@thatpinkgixxer53077 жыл бұрын
So what ur saying is my n/a motor is on 1 atmosphere of boost n/a then right
@MrJeroenreyns7 жыл бұрын
good educational video, thank you!
@StreetMachine187 жыл бұрын
Thanks for the explanation Bill Nye!
@RalphEvangelista7 жыл бұрын
"run no air filter like a hero" XD
@stepzyt38895 жыл бұрын
I have a 2013 genesis 2.0t, what if it stays on negative psi or at 0 and I have to be on 4th gear at least and about 4000rpm for it to go max 5psi?
@nicholaslowe33666 жыл бұрын
So would the same theory with altitude, apply to cold weather? Here in Canada, when the outside temperature is around 0 degrees Celsius I start to over-boost, and when the temperature is down to -20 or lower the car over-boosts with even moderate throttle.
@pierre2324 Жыл бұрын
My car boost to like 12psi in winter and 20psi in summer (Canada as well)
@swift1n3897 жыл бұрын
awesome vid
@AlexHernandez-xh8ei6 жыл бұрын
So how do u get a car to intake more psi?
@patrickervin14637 жыл бұрын
How/does humidity effect boost pressure?
@hks0717 жыл бұрын
very informative!! thank you
@anotherone107 жыл бұрын
What a perfect explanation
@dougscustomcargarage34347 жыл бұрын
great info 👍 mate
@Paulydude20007 жыл бұрын
perfect explanation, ty
@Torchi07 жыл бұрын
I need a bigger intercooler now, thanks... Brett
@CollectWithRyan7 жыл бұрын
will it fit my honda?
@tonybrighter38786 жыл бұрын
You the Best Man
@crezychameau7 жыл бұрын
Something that Brett didn't mention: a Bar is a unit of pressure, not quantity, and temperature affect greatly the pressure of air. So having 2 bars of air at 25°C (80°F) means having roughly 6% more air than 2 bars at 60°C (140°F).
@UberAlphaSirus7 жыл бұрын
that was well explained,
@KastaRules7 жыл бұрын
Simple and effective... and now I am craving *Vodka.*
@sheeeen28087 жыл бұрын
its kind of like engineering explained like im five, i really like it!
@chronus6717 жыл бұрын
MCM should do Pikes Peak. Come visit Colorado!
@smevox74907 жыл бұрын
Could you guys do a video explaining what exactly is "Turbo Flow Rate, such as lb/min" and boost. I can't seem to understand it. I hear of people running 24psi with a "higher flowing" turbo, making more power than someone running 28psi.
@Nebbia_affaraccimiei7 жыл бұрын
smevox good question! Brett please, next video: compressor maps!
@marc92837 жыл бұрын
There is your answer. Each turbo has its own specific compressor map. Google it and have a look at some diagrams. There is always and area in the middle where the turbo is performing most efficient.
@J-Eagan7 жыл бұрын
MCM Please do this. Would be great to see GFB cover something a little more complicated.
@Moriquendiii7 жыл бұрын
the easy explanation is that the bigger turbo has more room, so it can move more air at a lower pressure. Just think of a small and big hose. If both hoses had the same pressure flowing through them then the bigger hose would flow more lb/min so it would need less pressure to flow the same amount of lb/min.
@seanjones58267 жыл бұрын
Remember psi is pounds per square inch. That is, a force per an area. If you want more power, you have two options, increase the force (turn up the boost) or increase the area (use a bigger turbo). A big turbo will move more air than a small turbo, even if they're both running the same psi.
@DarianWallace7 жыл бұрын
You didn't mention that the higher you go the lower the atmospheric temperature though. Or even how altitude affects the concentration of available oxygen
@buddhamack14917 жыл бұрын
MCM boys already showed that air intake setups are pretty much all the same. No gains from pod filter vs factory air box and paper filter. Granted it was a one car test but I doubt that most cars have very restrictive air intake setups these days.
@KTS069aye7 жыл бұрын
High altitude = less boost... So drive my WRX into the ocean fpr maximum KW increase?
@ImBarryScottCSS7 жыл бұрын
I understood all these concepts but I didn't realise how dramatically atmospheric pressure dropped with altitude, I didn't think the drop off would be nearly as profound.
@SonicCB7 жыл бұрын
"Hopefully this visual representation has BOOSTED your understanding..." Marty wrote this script, didn't he? Unless Brett's just pulling a FAST one.
@FrenchValleyAirport7 жыл бұрын
So irritated you didn't match the levels in the bottle. That's like 2.1 bar. Smh
@alainsabido13277 жыл бұрын
rip my ocd
@lelouchbritannia63647 жыл бұрын
Alain Sabido yo nice profile picture
@Asdayasman7 жыл бұрын
+lelouch britannia yo nice name
@stepzyt38895 жыл бұрын
I have a 2013 genesis 2.0t, what if it stays on negative psi or at 0 and I have to be on 4th gear at least and about 4000rpm for it to go max 5psi?
@diegojc97 жыл бұрын
great!!
@BrentBlueAllen7 жыл бұрын
I still don't quite get the additive vs multiplicative distinction for absolute pressure. 1 bar atm + 1 bar boost = 2 bar total and 0.8 bar atm + 1 bar boost = 1.8 bar total. Where does that go wrong?
@dailydrivencommander68437 жыл бұрын
Brent Allen when you go higher in altitude from sea level
@BrentBlueAllen7 жыл бұрын
Higher in altitude explains atmospheric pressure being lower, but it still looks like 0.8 + 1 = 1.8 to me rather than some multiplication operation.
@DatNerddSwaqq7 жыл бұрын
Brent Allen 1 bar atm × 2 = 2 bar total .8 bar atm × 2.5 = 2 bar total the higher the ratio, the harder the turbo has to work, and the harder it works, the more power it saps, the higher the intake charge temperature, etc. the ratio is more important than the values in determining losses, since the lower the ratio, the less your turbo needs to work to achieve the same level of boost.
@TheStriker05257 жыл бұрын
so run a high flow air filter? got it.
@beefcakeandgravy7 жыл бұрын
NO, didn't you listen? *Remove the filter altogether - like a hero*
@woodsy9007 жыл бұрын
some people hey
@fulltiltdrift7 жыл бұрын
Go Fast Brett! With Vodka!
@rokudrifter7 жыл бұрын
Said so well even I understood it.
@harrisonbaker84817 жыл бұрын
love it
@omersohail955 жыл бұрын
Brilliant!
@LukeChapman7 жыл бұрын
Curious how all this would relate to piston-engined aircraft turbos at high altitude!
@NBSV17 жыл бұрын
Luke Chapman It's the same problem. They started using forced induction on airplanes to counter the thin air at altitude and the loss of power that created. While you'll still loose some power it isn't as bad with forced induction.
@Darknet1237 жыл бұрын
sweet!
@lv.99mastermind455 жыл бұрын
But what does Absolut vodka equal?
@Mike-mz9cm Жыл бұрын
And so many people think intakes for cars are useless or not worth it. Maybe a subtle power gain, but temps stay lower and the turbo doesnt work as hard.
@mninr48434 жыл бұрын
so when someone tells me that his boost is 30, wtf does it mean
@justinfabricius15977 жыл бұрын
Being a mountain dweller is anoying for sure. My house is around 5000ft, or 1500m. Would larger turbos effectively counteract this? (larger volume for lower density). Or perhaps more pressure and a leaner injection of fuel? I have no Idea, just brainstorming.
@kagemyster7 жыл бұрын
Justin Fābïø smaller turbo. more spinspin, more kaboom, more bwaaap.
@ArchimedeanEye7 жыл бұрын
Justin Fābïø Electric car with good range is your answer. Powering your wheels with a machine that delivers less power the higher you go is just silly.
@justinfabricius15977 жыл бұрын
I have a twin turbo set up, and the stock 9bs are already kind of small. So just more boost? He said in the video the turbo is already forced to spin faster and heat is an issue at higher altitudes. I guess thats what my intercoolers are for. I have a 91 Mitsubishi 3000gt VR4, just thought I'd mention.
@justinfabricius15977 жыл бұрын
ArchimedeanEye One day maybe, some of us are still under 20 and don't have that kind of cash to get an electric car thats faster, and can go as far as the fossil fuel powered equivelants we can get for the same price. Plus living in the mountains, The temperature drops down to -30 F (-25C ish). Batteries do not perform well, or last long at those temperatures. I build and fly model aircraft and the difference is noticible when the temp drops.
@justinfabricius15977 жыл бұрын
It seems the only real solution is moving!
@MistRVertexZ7 жыл бұрын
but can someone explain this to me: why is it that a 28mm turbo running 10psi will make less power than a 62mm turbo running 10psi?
@fox101697 жыл бұрын
JDM Viking because the 28mm is pushing less volume than the 62mm. the pressure is the same but the 62mm can push more air at the same pressure
@MistRVertexZ7 жыл бұрын
ahhh i see
@Dina0wnes7 жыл бұрын
Well explained but what happened to the Vodka? :)
@34REDCOW347 жыл бұрын
never left pornhub so fast!
@l_bonza75555 жыл бұрын
I think I need to watch this again so that I can understand it 😢
@tuhpatomaced7 жыл бұрын
Does this count as college credits? I'm about 140 shy of a degree.
@STAG1627 жыл бұрын
Very informative, but it looks like he consumed the bottles (bloodshot eyes) before filming. =)
@shyshydad7 жыл бұрын
OR punched a few Gatorade bottles beforehand!
@oksblue3 жыл бұрын
Its 5pm somewhere
@EndInformation7 жыл бұрын
Brett you saucy devil
@liamhazardcornec77537 жыл бұрын
Hey I live near pikes peak
@heartbreakr31917 жыл бұрын
I want to know what happened to the 1.5 liters of vodka
@gen3v87 жыл бұрын
Good good
@LUBAProduktion7 жыл бұрын
will the thing on your face fit my Honda?
@xmanguy947 жыл бұрын
yay.
@kefinkatt7 жыл бұрын
Never thought about this before, very informative. P.S good joke
@coreyhalverson21267 жыл бұрын
I am more intrigued by the magic trick of fluid density than the hair dryer science.
@h20bro7 жыл бұрын
sea level cold night perfect for boost ;)
@HazzardousMe6017 жыл бұрын
i like how he used vodka because it is just ethanol and water so it is basically e85
@Pretzil437 жыл бұрын
Moooole!
@derzzzz6 жыл бұрын
Ahh, the joys of living at 1300m above sea level...
@connors92535 жыл бұрын
No air filter and run it like a hero :'D
@Marc.S.787 жыл бұрын
So what you are saying is I should move to the seaside? Damn.
@saipatiba52727 жыл бұрын
where's Rake?
@SINIS0RSA7 жыл бұрын
Somewhere loving it.
@keeganmartin18866 жыл бұрын
Liked for the pun
@VintageTechRepairs7 жыл бұрын
so drink less vodka = more absolute boost 😎
@alchemistkj7 жыл бұрын
thumbs up at " boost pressure explained with.....VODKA"
@Doogleraia7 жыл бұрын
..and then there's the whole other topic of "why does it run better after it's recently rained?" going under the same general gist
@maxpower7007 жыл бұрын
cooler air, high moisture (think water/meth injection)=more efficient bang = more power :)
@maxpower7007 жыл бұрын
LOL
@Limeayy7 жыл бұрын
So double atmospheric pressure is 14.7 =29.4 psi? lol
@moguls9147 жыл бұрын
Lime That's why there are two different measurements for pressure - psig and psia. One measures with the atmospheric air pressure included, and one does not.
@nicoxis7 жыл бұрын
Mole Pressure
@TurboMiniTV7 жыл бұрын
"Absolute Zero" is a temperature thing, not pressure.
@a2d7 жыл бұрын
Instructions unclear; have been arrested for DUI.
@herrjoppe16787 жыл бұрын
Haaa! how bow dat..
@TommTooTone7 жыл бұрын
i consider myself a pretty technical guy but, those bottles confused the fuk outa me lol