What is a Fuel Pressure Regulator? Why does it connect to the Intake Manifold?

[@Salutifer0us]

Rotor, where is the 4 Rob?

[@robbob1654]

lol I laugh at this comment all the time

[@gt3tunecl725]

Now it is here

[@Grumpycat95]

Rob , where's that dahm 4 rotor ?

[@millsy0882]

Yellow Waffle AQ3D iii

[@miskaa6199]

More of these videos explaining stuff please 😊

[@johngoldstien6937]

I skipped around and 4 minutes in it looks like your making a bong haha

[@MH-pe8wj]

John Goldstien No its the "Intake Manifold"

[@NateSpring]

@4:20 exactly looks like a bong lol

[@neverstoppulling5169]

Rob you're much smarter than Bill Nye. Don't put yourself down like that

[@ashishpatel350]

NeverStopPulling hahahahahahahahahahahahahahahahahahahah only two genders bruh.

[@arthurphilips5140]

NeverStopPulling I love your logic

[@melody3741]

thatallredheadude yeah im a radical leftist and bill nye is literally just an actor who is vaguely liberal catering to liberals... hes sort of like a science teacher but isnt really either a teacher or a scientist

[@SpeedlPN]

Rob is an expert scientist in getting laid and a scholar in secretly building LSX swapped rx7s instead of 4robors

[@DEATHWISHVQ]

delete this

[@RebornOps]

Dude I think mine went and and just as I was thinking about it this video came up, I didn't know what it was until now, thanks so much!

[@Zastava101.]

The end is pure comedy gold

[@LordSeemz]

so glad that bottle bong was at 4:20

[@JustinAbroad]

In this video. rob shows us a bong he made out of a 2 liter bottle and one with a water gun

[@tylerdunnam1813]

Hold on. If the bottle was at 10 psi and the gun was at 15 then at first it would be 5 psi to the bottle.

[@robbob1654]

your video is very informative in explaining that as power changes so must PSI. People who watch most KZbin tuning videos only understand "oh, just add fuel. oh get bigger injectors, etc". what Rob is explaining that each injector has a sweet spot of PSI and this is crucial for tuning high power engines. this is why "adding big injectors" isn't a smart mod for most of you guys since you aren't properly feeding the injectors with enough PSI and are probably over working the stock pump. "adding bigger injectors" without proper PSI will lead to the dribble, which will lead to idle problems and low end power decrease

[@funnydubby6401]

Ur partially right, adding a bigger pump and bigger injectors and properly tuning ur engine using software or a standalone ecu or ramping the factory ecu is another story. However, using a fuel pressure regulator, usually rising rate, is a mechanical way of increasing ur fuel that is sent to the engine, so that u dont have to deal with tuning ur engine as much.

[@Velikain]

I subscribed to this channel for 4WD RX7 but now it's like Engineering Explained. But I'm not disappointed.

[@RobDahm]

+Velikain keeping people mildly entertained while I build it in secret

[@robertwarren2470]

@@RobDahm I'm using a tbi pump to a qft bypass reg to a proform 650 does the manifold tube have to used and guessing that tube is on the outlet side?

[@RuinedHemi]

My turbo slice still hasn't arrived who do I take that up with?

[@Diogoneves1987]

Thank you for the explanation! keep up the good work and when u can please let us know how the 4rotor is doing! best regards from Portugal!

[@diogocardoso1948]

Portugal 🇵🇹 Pensei que era dos unicos

[@Zirushi]

mais um aqui.

[@diogocardoso1948]

André Pedrosa hahah 😂 estamos em todo o lado 😂

[@TheMagalhaes24]

Os tugas estão em todo o lado ;)

[@6loc9gaming51]

Is fuel regulator can install into a carb engine?

[@CarsSupercars]

Hello Rob, Nice video and keep up the good work...

[@t1995roger10]

Can you explain an oil catch can, and will I need one for my upcoming boosted ka?

[@absoluterandom9908]

Great video I enjoyed all of it😂😂 love the way you demonstrated it.

[@stephenrogers5386]

Helpful video!

[@zahin8]

This guy can explain hella good

[@MAXQ14]

zahin8 and why is it connected to the fuel tank?

[@thewespaul6520]

Next week by Rob Dahm: what is a steering wheel and what does it do??!!!

[@robbob1654]

the wespaul LMAO!! roasted 😂

[@RobDahm]

I was going to do "What is a gas pedal" next lol i started the channel with simple videos like this and i enjoy going back to my roots. if it helps someone then im satisfied. Obviously not going after the big audiences with videos like this.

[@thewespaul6520]

Rob Dahm or are you out of video ideas? Finish your car Rob.

[@boostedone1367]

the wespaul and why is it connected to the steeringrack?

[@brandondeel3567]

Rob Dahm would you like to enjoy your fried chicken after its been in the fridge for a day? let me show you how...

[@DukeNuggets69]

What is the purpose of a mustang? Driving or Killing? Why is it linked to car meets and crowds?

[@StasRyadinsky]

First of all thank you, now it makes sense. I had a rough idea of how it regulates fuel pressure but that simple demonstration did it for me. Now second thing is the ending was so immature but funny as hell at the same time haha. Love your videos man. Good job

[@lh1678]

I don't know why this guy has over a million subs with a title like this. The FPR connects to the Fuel Rail. Which?...Wait For It.

[@AK-ic1yj]

Ah wake me up before you go go!! George Michael is so hot working on car engines!

[@user-ql6by8cy9s]

What happens if u plug up the vacuum line on the fpr

[@Verybadbiker]

Hi, I'm not Rob Dahm

[@MichaelGawesebmainone]

I get F1007 and F1014 codes still searching what they mean. Somebody suggesting it may be crankshaft or timing issue, maybe crankshaft sensor, but I doubt car could be out of timing as it was not opened. Someone suggesting it’s a fuel problem perhaps too much fuel. It’s a Peugeot 207, any idea where to start?

[@01greengt4]

4 rotor?

[@twotimes2099]

why's rob making bongs?

[@DEATHWISHVQ]

Here is a BETTER UNDERSTANDING AND VERY EASY explanation: If you have 45 flowing through the FUEL RAIL, it is PUSHING AGAINST the top of the INJECTOR at 45 PSI, it is knocking at at 45. Ok, now if your turbo is pushing 10 PSI of BOOST, it is pushing 10 PSI AGAINST the bottom tip of the INJECTOR, so when 45 PSI is flowing through the INJECTOR but 10 PSI is pushing against the tip, how much PSI actually went through? 45-10=35 only 35 PSI went through the injector! How do we adjust this? when you have 10 PSI OF BOOST, pushing against the TIP of the injector, the fuel line is increased by 10 PSI because of the hose connected to your manifold, resulting in 45+10=55 PSI, so now 45 PSI FLOWS!!! ITS LIKE SELLING ON FB MARKET IF UR SELLING A CAR AND WANT 4K U ASK 5K TO GET 4K. I watched this video twice and even made a diagram as he spoke to understand it, but truly he made unnecessary comments that still confused me, shout out HALTECH for the better explanation.

[@iGThomas]

Very Educational Thank you Rob

[@lucilledog8832]

Where do you load the weed?

[@jessisanturo]

Bicycle inner tube valve stem . I think he said bicycle pump gauge . We all know what he meant but just for the record .... not trying to be a smarty jack just clearing. Nice vid .

[@daevid21]

"Intake minfold " looks just like a bubbler lmao

[@CrucesNomad1]

But my webber carb requires only 1.5 lbs of pressure.

[@LeZturbo]

What I don’t understand is that on a turbo car manifold pressure will be positive whereas on a non turbo it will be a depression. After market pressure regulators don’t mention turbo or non-turbo

[@Just_Prob]

is that a venom fuel rail?

[@ThatBlacKid95]

Does anyone know what those connections are holding the regulator to the fuel pressure rail the 2 blue and red pease in the middle 1:00

[@tiki2777]

From regulator to the rail: ORB to AN, AN to AN, 90 degree AN

[@BradenCarlsonAutos]

Clicked on the video, dropped my phone. Why do you break everything Rob? :(

[@flinch622]

Bit long, but referencing the regulator to intake vacuum instead of atmosphere provides some flow modulation in that it swings the effective setpoint of the regulator on demand tweaking lbs/hr available from the injectors. A sensor mounted on the fuel rail referenced to atmosphere would show pressure changes as engine demand went up and down.

[@jeremygriffith8797]

The end was the best

[@terrorlobolee-al8440]

I have 3 years with my fox body mustang, and that make sad because I never found why is running so bad, lean and black smoke. Thanks to u I find the problem. The previous idiot owner, delete the EGR and he connect the EGT vaccum lines on the vaccum tree to fuel pressure regulator and the intake line for the regulator to vaccum tree. 3 F**** hard years alot of money on mechanics and no body figure the problem. THANKS!!!! U SAVE MY CAR

[@willischan3969]

Pls correct me if i am wrong; Injector is not inside the cylinder(located behind the vavles) and hence no pressured air would block the fuel injection.

[@AndyTheZhang]

Hi I'm Rob Dahm. Hi I'm Rob Dahm. Hi I'm Rob Dahm. Hi I'm Rob Dahm. Hi I'm Rob Dahm. Like if you get the reference

[@melody3741]

where rotor

[@OfficialAPD123]

Next episode, the engine and what it does.

[@astroblue6207]

How does the vacuum line hook up to the fuel regulator? Does it come from the factory assembled wrong?

[@shobud7561]

If this is true why didn't all new vehicles all the way back it the 70s come factory with a FPR ?

[@nismonicky]

Porker can't shut your hood all the way in California

[@kevinc9006]

Engineering explained....oh wait this is rob dahm

[@aftisafterme9736]

Regamulate the fuels to help condinmasations for nitrous this is way to advance for poeple to understand you need a degree for it I got mine

[@EarthHeavenMovies]

@3:08 "Adult toy" - Childhood ruined

[@rosegold-beats]

the title says it all lmao

[@blackviper9392]

Actually learned a lot Rob, thanks!

[@remyche8768]

Would a old fuel pressure regulator cause a hot start issue? Turn car off and fuel up, pay for fuel come out won't start

[@DocumentaryHub]

Fake, no one knows! Only the car gods know how they work!

[@scottmcbride2237]

So does this also include carburated vehicles. Cause I hardly ever see this on a carbureted car.

[@MeaHeaR]

é MoiśT Power-Phull Explain-Ásiân 👍👍👍

[@chrisbeamish6556]

You trying to explain this with pop bottles and squirt guns is comiccal

[@brewera71]

Hi, I'm rob dahm. I'll never get over that

[@rambow70]

Explain how a squirt gun works.. Or magnets!

[@skeeazunited7120]

This foo makes pressurized bongs I know it

[@fikos12]

4, where is the Rob rotor?

[@bryan_nfs5593]

Car journalists are not mechanics..

[@kimmadsen4893]

I diagnosed my bmw e46 318d. And it said fuel pressure regulator cuircut low. I didnt have the diagnose thing before. But i car suddenly got super slow but wasnt in safe mode. So i thought it was the turbo and changed it. But the car was still as slow as it was before. Then i diagnosed it

[@andrespareradeniz9797]

Hello from Argentina! Great video! I first want to say that I'm really new on EFI, I'm trying to learn to convert an old carburator car and I know I can really sound like an idiot with my question.. but what I don't understand and I would really appreciate your comments is what about the regulators without the vacum/boost port? For ex in the case the throttle is closed you'll get a higher dP through the injector and that means higher fuel flow on the same injection time than the rated dP. is there any way to compensate with tunning? lowering injection time? Thanks in advance!

[@jakefriesenjake]

Basically, the regulator maintains the 40psi differential. If the intake was pressurized to 20psi from a supercharger, the regulator would sense that 20 psi, and then automatically adjust the fuel pressure up, by 40psi (60psi in the fuel rail total) .

[@jahfiyah619]

Where should i hook the fuel pressure to the manifold.

[@ra1ny26]

Next video, what are tires and why does a car need them lol

[@someweeb3650]

So what's the problem with having too much pressure?

[@InsideOfMyOwnMind]

Because when you pee it gets all over everywhere

[@melody3741]

i know what a fuel pressure regulator is and have replaced three yet i am going to watch this video all the way through.... why

[@RAYZGM]

Rob make me rich now I'm your cousin

[@DREAMS2REAlITY]

I love the fact that even tho I watched this a few years ago when it came out that as soon as I saw it I had to watch it again.

[@tnainio]

If the fuel comes in from the fuel rail on the left, and the regulator lets fuel go through it and back to the tank if the pressure is too high, then what is the pipe below the vacuum pipe on the right for..?

[@Tokyodriving]

Dahm, the 4 Rob rotor is where?

[@enlightenedrenegade472]

We need a Rob Dahm aesthetic appreciation day. Seriously. This man is attractive. God damn it. And fine. I'll continue the meme. Rotor 4 is the where, Rob?

[@mdenny9]

I beat you Alex lam

[@slashmckagen]

matt denny me too lol

[@diablalexfull]

A fuel pressure regulator. Is an object that regulator fuel pressure.. And the intake tube is to get vacuum

[@astroblue6207]

How is the fuel regulator installed???????????

[@2326TOM]

Thank you mate. Great video Hay, can you tell me how can I find the correct fuel pressure should any vehicle has? where online can this info be found.

[@powcar91]

next youtube video, how to make a flamethrower using a watergun.

[@brandonjohnson3566]

The ending was priceless bro. I was drinking water when you said that's totally after sex and laughed so hard my mouth became a fuel injector. XD

[@Iucien]

I always thought the vacuum line was teed into the system only for the "rising rate" fpr's that raise pressure when in boost. Wonder how a rising rate fpr is mechanically different.

[@skaterboi8922]

lol seeing rob in a hardy shirt is trippy

[@turbo_lerssi1083]

i had never thought of that. i mean i figured it was something like that when ypu made the bong, i mean water gun, but now i know that

[@latsabidzeb]

what if connecting hose is damaged?

[@ListenAnObserve]

Lol totally after sex LMAO

[@BenPortermike]

i climbed the wu tang mountain and i asked the Dolly Lama where the rotors at. he answered: rob is the 4th rotor.

[@Mat99TN]

I have a question Rob, what bringed you into cars? Following from Italy^^

[@nodekapunk]

A video from the blue garage! What a throw back KZbin recommended me!

[@Mitutumuch]

First 2 seconds. Hi

[@TheCoolStuffHD]

4, where is Rob the rotor?

[@outdoorscanada9493]

fuck why wasnt this in my sub box

[@paperplanesparadise355]

Every time I asked the car accessories shop people, they can't explain a thing, thanks for sharing.

[@nicoleibundgut534]

How would that szenario change if it would be a n/a engine?

[@Meyersmanx1]

It really doesn't change, vacuum from the intake manifold still creates vacuum, the FPR still senses that vacuum and adjusts the fuel "take or put". When you hit the throttle under acceleration the intake creates more vacuum, the FPR sees that increased vacuum on the diaphragm inside the FPR. The diaphragm moves allowing more fuel (in aviation we call it "putting"). When you take your foot off the throttle, the intake draws less vacuum, the diaphragm sees Less vacuum then reseats and "puts less" also referred to as taking. Rephrased putting is putting in more fuel to the injection or carb, and taking is taking fuel away from the injection or carb. Adding a turbo Just increases vacuum and so increases the put. Does that make sense?

[@Kato1559]

I needed this explanation

[@wt8213]

Rob, be my sugar daddy please.

[@SirDavothe2]

Rob Dahm isn't an engineer is he.

[@motaku_th]

Holy shit that was unexpectedly educational. Very well explained. Thank you.