The black sheep part 3

[@jrhalverson1280]

Devin delivers the Doc heat again. Well done.

[@jimmydaps1874]

900 lol just guessing just trying to learn thanks for the videos

[@Hyttyskalju]

There is a nut missing on one of the studs holding down the blower. You can see it at 4:00 it is the front corner one.

[@biggin5434]

Good eye!

[@chrisowens5612]

I believe they will flow zero above 10lbs of boost because they probably won't open with more than 100lbs delta.

[@jeredcrowley6876]

Could you run the exhaust on the first regulator into the no boost injector than a second regulator after those back to tank? Or is tuning the EFI easier? Dont know much about EFI

[@fabianvaldez6101]

To avoid from changing anything in the fueling between injectors, couldn't you just run another fuel regulator for the vacuum side of the inj's and have 2 main returns to tank, granted your going to have more fuel line but that's another option isn't it? So you can stay at the base PSI the inj's up top because you only see vacuum up there. Correct me if im wrong.

[@stanlucas1932]

Just run a separate non rising regulator and return for the top side.

[@MrDynoking]

I have done quite a few of this setup In burnout cars we just setup the hat injection to run on a 2nd map in the software and tune that separately to the port injection. We have mane injection for fueling with hat injection and we use the port injection to even out the cylinders

[@charleybetts1053]

The way the rules keep changing, this will be a mildly competitive Ultra Street car by the end of the season.

[@djk91lx28]

The amount of knowledge you share is amazing and your channel deserves all the followers. Thanks again Devin.

[@larrynagy2926]

Needs a split fuel pump and 2 separate regulators. Boost reference the lower set of injectors and leave the hat injectors constant psi.

[@BB-rn6so]

Nice upgrades. Looking forward to seeing some action from The Black Sheep...And The Nasty Doc

[@koss843]

who needs enemies when you have friends like devin... lol

[@sgtbigballs666]

Yeah he's far worse than any of your enemies could possibly be 🤔

[@MPHMayhem]

Dirt ball Doc coming to a roundie round track soon ? 😂 omg so funny ❤😂

[@JohnClutch1]

Devins talking like Doc is 100% paid up front 😮😅😅

[@Michael-nu1py]

Dam all that’s nice but the light is really nice

[@jasonhastings5538]

😂😂😂😂 Rough on Forrest also!!!!😂😂😂

[@forrestkennedy8736]

Always haha

[@robinwendt5527]

Awesome job man...I love watching how you lay everything out all clean like you almost care about John's car when it's done, hopefully he won't have it tore up the 1st day

[@dropfactory]

Is a dual regulator setup so the top stays constant just to much weight? Or is modify the top injectors load % progressivley fairly easy and straightforward?

[@patrickmansfield3967]

This was my question also.

[@MartinBorn]

You would need to have two pumps at this point as well, if I'm not mistaken. Otherwise the fuel will go the path of least resistance and flow across the 90psi regulator for the top injectors. Regulators are in the return line so you can't have two different pressures between one pump and two regulators.

[@dropfactory]

@MartinBorn I wasn't sure if you'd be able to run the second reg in line after the first reg. So the first reg feeds the lower injectors then off first regs return you run a second reg to keep constant px to the hat injectors then return excess to the tank. Would have to study it more but that was my initial thought. Running the regs in parallel wouldn't work like you mentioned. They'd need to be in series.

[@MartinBorn]

@@dropfactory running it of the return of the first regulator would not work but running it of the output could.

[@johnnym1320]

I think possibly if you put the higher pressure reg first then plumb the return from the that reg to the top fuel rail with a low pressure reg at the end of the system back to tank. Other wise I'm thinking dual pumps and regs

[@drother]

It goes from 700pph to 873pph from a 90psi delta to a 140psi delta

[@LTLHOMER]

Since it’s a BA injector, it’ll go from something below 700 to sqrt(140/90) * something below 700.

[@markhoff5205]

GREAT Work as always Devin!!!

[@Shademax4273]

Gold catch on the fuel system. To try to eliminate confusion for those learning this, 3 in/hg = -1.5 psi. 90 psi -1.5 = 88.5 psi at idle.

[@MrSeansiller]

1088.89 lb/hr @140 psi

[@andrewjohnson5275]

This is what I mathed but I'm probably wrong. I don't know anything. I'm here to learn today!

[@gafrers]

Always so detailed 👍👍

[@chrisloveridge627]

Manual regulator for the top hat injectors

[@Jvcomet]

Nice job as always. !!👍

[@BB-rn6so]

Oh No!!!! There's some paint missing from the roll cage at 18:10.

[@johnnienitro6812]

U ok Boss?

[@jasonhastings5538]

Devin would you wire up my dirt car??!!!!🤣🤣🤣🤣

[@jamesthorburn7842]

Actual injector flow = rated flow x square root of (actual fuel pressure ÷ rated fuel pressure) So new injector flow is 873 minus some additional dead time from the added differential pressure

[@TeViiNz]

The injector will grow to roughly 1000pph. In my opinion best way to reduce pre blower injectors would be to have a 2d offset table to reduce the injectors x percentage based on x fuel pressure

[@mikes7047]

the black sheep in its natural habitat

[@kingyankee69]

Whole lot of testing coming up.

[@BBenDavis]

You need someone to make a closed loop capable fuel pressure regulator that is electronically controlled via 5v, 12v or PWM thru the ECU to perfect this mathematically speaking. Practically speaking, I would not be surprised if you’re “excess fuel” so to speak that you’re anticipating from the lack of differential pressure in the hat isn’t consumed/evaporated/vaporized by the supercharger itself for means of cooling. Also, it’s fair to assume at some point during the pass the blower hat is sure to experience some amount of positive pressure due to aerodynamics. How much and at what MPH? I have no idea cause I’ve never logged a map sensor inside of a blower hat above the rotors but it’s fair to expect some value higher than the car sitting still. If it were mine and I was trying to be as techy as possible I’d probably begin by trying to model my fuel flow as closely to a true mechanical system as possible. I’m talking total fuel flow volume as well as biasing the top vs bottom injectors in the software as closely to the jet size difference top vs bottom found in a mechanical system. All that aside, I’m interested to see how you all decide to skin this cat and what kind of results you get.

[@Shademax4273]

I could be mistaken but I thought fuelab sold regulators with electronic flow control.

[@BBenDavis]

@@Shademax4273I personally would have gone with a mechanical system similar to what the screw blower promods run with electronically controlled lean-outs. Blowers are hellaciously violent and can be hard on electronic devices like fuel injectors. I’m well aware people have done this successfully and it is without a doubt a more precise and controllable way to deliver fuel but billet hemi aren’t cheap to replace and Id be done for the year if something happened. I like what they’re doing and I’m sure it’ll work great once they’re finished but the longer time goes on, the more I find myself leaning towards simplicity and redundancy over intricacy and sophistication.

[@southernfabz5917]

😂😂😂

[@Shademax4273]

Im not real familiar with holley but id wager you should be able to compensate for the fuel pressure rise in the hat with some kind of custom table setup based of fuel pressure for those injectors. Cant wait to see how they deal with it.

[@robholmes2129]

couldn't you run a 2nd regulator for the upper injectors that is not boost referenced?

[@theholleyefiguy]

We could but he doesn’t want to and I feel like programming can handle it

[@evanuerkwitz4871]

@robholmes2129 Fueltech/Proline runs two small cam drive pumps with two regulators. Technically it's two separate fuel systems being controlled by one ECU.

[@theholleyefiguy]

on a hybrid system (efi and mfi) you use a dual stage pump as well

[@Vgbjj1977]

1085 pph

[@RustyWells2]

No we love the BlackSheep John on the other hand we just put up with him lmfao!jk

[@sonikempire]

I'll give you $5 for that switch panel.

[@Wheeliebadatstuff]

The way I would have done it is run a Rage 2 stage pump with 2 regulators. But I'm just some random dumbass from downunder that can only dream of having a screw charged V8.

[@DHUMPTXTX]

Aeromotive makes one also. That setup is optimal for sure. In my case, I don’t have space for the 2 stage pump.

[@onefastermonte85]

I kinda wish Jon Would edit his videos to no more than 15mins long and have less dialog. Or if there's talking, then show closeups of the work being done.

[@sellis330]

Welp, most injector manufacturers lie about their flow rates… so the top injectors will flow at least 600 at idle. Not sure what injector pressure/flow looks like but interested to see the explanation.

[@jason7475]

Those sensors the same as lowdollar?

[@forrestkennedy8736]

No sir

[@midwestdave33]

So, anyway!

[@scottwilkins3170]

I always laugh when you have a car you cant show peoples egos are way to big! Its just a damn race car its not a secret air craft your rolling out to take over the world with!

[@JohnClutch1]

Seriously, Doc and the Black Sheep us the 1st car I ever followed, then he introduced Turbo John and between there two channels, I have the best time. Plus Justin and 187. Hope to see more of Matt though. Hope all is well.

[@jasonhastings5538]

Matt has a youtube but dont think he has uploaded anything !!

[@toddclark332]

Great video guna be cool when dune have a great weekend bud

[@allenwilliams87]

One would think around 1050 to 1100 pph

[@philbetthauser9547]

Since the regulator is a 1:1 boost reference couldn't you just use the inverse ratio on the upper set of injectors?

[@lsxtmt4910]

If he wasnt such an arrogant db....quit watching his garbage a few years ago.

[@Jonny_trans]

It appears to be 1088 pound per hour injector at 50psi 90psi base + 50psi = 140psi 140 / 90 = 1.555 1.555 X 700 = 1088LB/HR @ 50psi boost

[@Jonny_trans]

At 50 psi you would need a fuel flow offset of .643 to make the top and bottom sets flow at 700lb/hr That’s a calculation based on my previous math simply 700/1088

[@Shademax4273]

Dang they will be flowing about 873lb/hr.

[@brianb8489]

Why don't people like Doc? Is he a ballbag?

[@supercharged6771]

I like John...he can be a bit of a cry baby but he just wants to win and is horribly disappointed when he doesn't it's definitely nice to see him get away from nitrous.

[@JohnMcMahon-yf5ks]

LOL

[@HeyLiana1]

Why does everybody hate him, I know that I hate him, I don’t know why

[@jkfonyi]

Close to 875 lbs an hour

[@CLW83]

Couldn't agree more John is such a douche 😂

[@jkfonyi]

Did John spend all his money paying you ? What’s up with the poverty panel ? Aluminum ? John couldn’t afford a sheet of carbon ?

[@lsxtmt4910]

At least he got a Leash board on it,better than he deserves😅

[@bigfoot355]

Lol 18:39

[@polarischevy05]

873 PPH

[@timcarroll1681]

Great video but where is the cat claw