So many ppl on the internet and forums giving false information really need to see this video. Great video BTW!
@rongravel4585
4 жыл бұрын
Awesome vid. Most guys don’t get the point about the volume of fuel inside the line. Proper sizing is the most important part.
@twisted2291
4 жыл бұрын
Sounds like some people have forget a lot of math that goes on here. Once a pressure has been reached. It wouldn't matter if it was a 90 or 180 fitting. If the pressure stays steady the fluid will flow at that amount. It is not like and exhaust system where the gasses are bouncing around in the pipe. Liquids and electricity both follow the path of least resistance until they are under pressure. Think of the water flow in your house. Every outlet has the same pressure until another outlet is opened.
@user-hh4hc2lt6e
Жыл бұрын
Bro this is the best comment about this. I understand it 100% now lol
@mitchstott4004
3 жыл бұрын
Hello Steve,Mitch Stott Long time since we crossed paths. Glad to see you still active in the performance world. And there will always be plenty of bleacher professionals in anything you do. Have a great 2021 hopefully we will cross paths again sometime soon.
@MHolt13
4 жыл бұрын
SCIENCE IS AWESOME! I love knowing and learning. I use steel compressed fittings on my lines that are hand made at an industrial place locally and I never would have dreamed there would be a difference. So I love to see logical testing done! Super awesome! Keep up the good work!
@daveharryman6390
Жыл бұрын
the guy doesnt know how to test flow , you dont put a restrictor after the 90 you are flowing and expect to learn what the 90 flows lol
@daveharryman6390
Жыл бұрын
@@bigboreracing356 I dont need a flow bench to find out if a # 8 fitting of any style will flow a 1/8" orifice hahahahahaha but I guess there are guys out there that need to be shown and then post how impressed they are with the test hahahahaha
@daveharryman6390
Жыл бұрын
@@bigboreracing356 he should have said you dont need a full flow 90 when you dont need to flow the whole line size , instead of making it sound like the forged 90 is just as good as a full flow 90 ..................... get it ?
@daveharryman6390
Жыл бұрын
@@bigboreracing356 you mean a bigger one will flow more than a smaller one , yeah I know lol
@daveharryman6390
Жыл бұрын
he also proved that putting a orifice on the end of what you are flow testing takes everything out of the equation except the orifice , ever notice how ported cyl heads only start to flow more than non ported heads when you start opening the valve farther than ,050" ?
@Racestatus
4 жыл бұрын
Good video and good to see that it is a myth lol. One I would love to see is the split to the fuel rails with the fees. Vs feeding one only.
@livinroomlongshanks
4 жыл бұрын
I LOVE THIS! SHUTTING THE SHEEP DOWN!
@smactek
4 жыл бұрын
great video, the number of keyboard experts, these days, left unchecked, would cause doubt in guys, that do know what they are doing, such as yourself. thanks Steve
@jamieknight9636
4 жыл бұрын
Nice one, thanks for taking the time to make this.
@dirtymuleracing5321
4 жыл бұрын
Thanks for the video, just adding a new fuel system and have a couple -12 90’s before my pump, NA combo, this helps.
@MichiganQuadTrailsTales
4 жыл бұрын
Nice Demonstration!I have never used a forged 90° fitting,nice to know.
@dirtymuleracing5321
4 жыл бұрын
Very interesting, thanks for video
@Rudderify
4 жыл бұрын
We need more tech from you guys!
@paco1008
4 жыл бұрын
Thank you. Very interesting.
@1bottlefed
4 жыл бұрын
If you consider the velocity of the fuel (even at twice the PPH) through the 90° fittings it should be apparent that you will not see a meaningful restriction in flow.
@beekerscustoms
4 жыл бұрын
What next. Are we going to calculate the frictional losses in straight line?
@derrelcarter9401
4 жыл бұрын
Thank YOU!
@riceburner32
4 жыл бұрын
Testing pressure? Orfice size?
@mastercylinder5225
4 жыл бұрын
Thanks, that was good.
@canyonrunner331
4 жыл бұрын
I'd be interested to see if there was an increased draw on the fuel pump for this
@rocconido2192
4 жыл бұрын
What pressure is this at? High pressure for injection or low for carb?
@SiteTrek
4 жыл бұрын
I had always heard about the 90 degree thing since the 70's. Could it be at that time when we only had at best a Holley blue pump and brass 90 degree fittings that on the inlet side that the 90 degree fitting would restrict the flow? I would like to see a test with a pump like that and a 90 degree fitting brass and a good fitting like used in the demonstration.
@johnalwine3159
4 жыл бұрын
How about testing on the suction side of the pump.
@Owens_Racing
4 жыл бұрын
John Alwine the reason this works, which I’m guessing you know, is pressure. The fluid was backed up and waiting to come out. Now not to dismiss this, as I truthfully would of avoided 90’s. Even on the pressure side from the free flow or even as mentioned vacuum side. This is where flow. Either fluid or air benefits from less restriction. 90’s would be one. Again boost set up. It’s pressure it don’t care. Airs backed up waiting to go into the intake or the fuel backed up waiting to enter the injectors.
@johnalwine3159
4 жыл бұрын
@@Owens_Racing I have always used tube bent 90s when possible. Thanks for the input!
@mxguy2438
4 жыл бұрын
Your results look feasible. The jet flowing 500lph is a good visual that we don't normally get to see. I'm not familiar with the flow bench setup. What was the pump pressure set at? I'd like to have seen that the pump pressure was controlled and a pressure measurement taken before and after the restriction.
@save16thave
2 жыл бұрын
Wish I could give this video ten likes.
@ninelivesracing
4 жыл бұрын
cool, thanks for doing this
@ronbown3836
4 жыл бұрын
Good information there but how about putting one of those forged 90-degree fittings before the pump
@dp4racing
4 жыл бұрын
I appreciate the effort - is this for carburetors? I’d like to see the change in back pressure. What size hose & fittings? -6?
@chrismarotto4301
4 жыл бұрын
What about on the vacuum/inlet side of the pump?
@jeangenibrel2149
3 жыл бұрын
What about with oil? I understand from Earl's that each 90 degree fitting in an oil system robs 5PSI.
@shawnthomas6782
4 жыл бұрын
What pump are u using for this test
@undertaker598
4 жыл бұрын
I fkn said the 90 didn't matter. Most companies plumb a V-8 fogger with 90's on distribution blocks. Same thing.
@martinlambert2279
4 жыл бұрын
would the same be for running 90* in oil lines? I had an engine builder claim I had "too many 90's in my oiling system" which he felt led to my rod bearing failure and I disagreed to his logic.
@hydrocarbon82
4 жыл бұрын
Every fitting induces a pressure drop, but it depends on flow and viscosity. While it would drop it faster with oil, it's unlikely. Just check out the crazy 90 turns any oil system makes. The largest drops tend to be from long runs of narrow hose moreso than fittings.
@tomsmith4066
Жыл бұрын
Good to know thanks
@_Wags_
4 жыл бұрын
Quick question, was there a difference in the duty cycle of the pump?
@porschetech72901
4 жыл бұрын
properly sized is the key here....
@bobbytraywick
4 жыл бұрын
squashafied!! lol
@ShawnD1027
4 жыл бұрын
What fluid is being used for the test?
@keysautorepair6038
4 жыл бұрын
What pump are you using
@bakercdb
Жыл бұрын
Think of a 5 lane freeway with a crashed truck blocking 4 of the 5 lanes. Traffic flow is obviously greatly restricted. You then close one of the 5 lanes Before (upstream of) the crashed truck, and note that the traffic flow didn’t change going from 5 lanes to 4. Would you then state that having 4 lanes instead of 5 lane freeways does not change the traffic flow and start building 4 lane freeways instead of 5? Obviously, that’s silly. The restriction of the crashed truck (orifice in the video) makes the changes upstream (generally) meaningless.
@clemzahrobsky2137
4 жыл бұрын
this problem with 90 degree fitting are in flow reduction of the engine oil plumbing not fuel system
@waymon540
4 жыл бұрын
The Cheaper 90 Degree Fittings Are Just as Good As The More Expensive Tube 90 Degree Fittings. God Bless America. 🇺🇸️🇺🇸️🇺🇸️
@TwisNinja
4 жыл бұрын
without resistance there is no pressure .......
@danjreed
4 жыл бұрын
I only read the 90 degree argument in terms of AIR flow, not liquid!
@DD-gi6kx
Жыл бұрын
sorry dude, good attempt but really a poor experiment, no comment on pump details, pump current draw, pressure, etc and the hole in the end is the limiting factor, why would 90 degree fittings that are way bigger than the limiting orifice have any effect on flow, especially at those pressures. there wasn't a flow change but is there a pressure change...that would be a C at best in a high school physics class
@bakercdb
Жыл бұрын
Sorry, but plain Wrong. Basic fluid dynamics. Restriction on the end makes it a ridiculous test (despite all the fancy looking equipment)
@riceburner32
4 жыл бұрын
Forged 90 degree fittings do restrict flow. Just a fact.
@joechill3905
4 жыл бұрын
U should get some of those cheap chinese junk fittings that jegs and summit sell with their names on them and see if there is any issue ... i bet there will be... buy american made seriously because if your building a car that makes stupid power with a serious motor that costs big $$$ why would you cheap out on chinese fittings?
@eliteman76
4 жыл бұрын
Joseph Monserrate man you are not kidding! Why risk things on saving a few bucks and using garbage that not if but when will it fail.
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