Fuel Pressure or Fuel Flow: Which Matters More?

[@hybridmusclegarage4590]

Great Info As always!!!!

[@MuscleCarSolutions]

Thanks man.

[@juangalvez8594]

Thanks for posting !! Love your detailed videos. 👌👍

[@MuscleCarSolutions]

Glad they’re helpful!

[@indy007jones]

Another great Video Sir. Question, I have a manual fuel pump with a return fuel to the tank, doe's my fuel regulator need to have a fuel return? Thank you.

[@MuscleCarSolutions]

It’s one or the other. I prefer the return to be at the regulator (primary point that determines flow) than at the pump. But in reality, both work. It’s just my preference.

[@indy007jones]

@@MuscleCarSolutions Thank you for the reply I've learned so much from your channel.

[@MuscleCarSolutions]

@@indy007jones we’re all learning something new every day! That’s what I love about all this stuff. I’m just happy to pass on a little bit of what I’ve learned and thankful you found it helpful. 🏁👍

[@SlantDailyGarage]

Great video man. We just were talking out this last week.

[@MuscleCarSolutions]

I got several comments last week on pressure and decided it was just time. Looking forward to seeing some Cookie Monster video devouring Holly Springs!

[@gabrieldimarco9646]

Good info on pressure vs flow. It would be good to touch on fuel line sizing and type (rubber vs steel etc.) as this may also be a factor.

[@MuscleCarSolutions]

Unless you’re extremely choked down, it’s not a factor (in this discussion anyway). Like I mentioned at the very beginning, I wouldn’t be discussing application specific info. Your point is a great example of that. I might do that video in the future as it would be very easy to test in a real world application. But for this video, it just under the assumption that everything else is up to the HP goal.

[@fuelbasti]

Just in time 🤓 Just mounted a new Aeromotive pump (7psi) into my system. A regulator hold its down for my Edelbrock carb. So far so good. But for any reason the outlet line vibrates very much. Super noisy. The pump itself has no contact to the structure and is mounted with polymere bushings. It is crazy.

[@MuscleCarSolutions]

“Just mounted a new Aeromotive pump (xxxGPH)” !!!!!!! Some of the pumps are noisy. Edelbrock does make a quiet version that I linked below. Isolate it the best you can is all you can really do. Unless you’re hearing a growing or inconsistent sound coming from it.

[@massivefins2597]

I have that same eldebrock... its says its a quiet flo... mine is loud as heck... fuel pressure is fine but its pretty loud. How loud is yours?

[@VinoRatRodbuilds]

Yep great info.

[@MuscleCarSolutions]

Thanks boss!

[@SeanJoseph-s2s]

Good content and thanks 👍🔧

[@MuscleCarSolutions]

Thank you. I appreciate that.

[@andrewforster4974]

I have a 1968 ford 302 in a f100 I put in a 32 gph electric fuel pump and put by the engine a fuel filter with a return line 3/8in and out of the filter and 5/16 as the return line and the engine seams to be happy

[@MuscleCarSolutions]

Yup. For a cruiser it can be plenty. The engine will always tell you what it needs and likes!

[@ZEPRATGERNODT]

Good info

[@MuscleCarSolutions]

Thanks!

[@russellfuchs7903]

I have to say that this episode is a little dry and boring unless you are someone like me. Someone who has been out for some time and getting back. I have a Holley setup but am going back to an Edelbrock. Still need to update myself with what has changed since the eighties. It's like shop class 101 all over again. Thank you for getting me a little more up to date. Taking notes by the way. I know there will be a pop quiz in the near future. Lol

[@MuscleCarSolutions]

@@russellfuchs7903 the whole point of this channel wasn’t 30 second long videos showing me working on crap. Anyone can do that. My goal has always been to show how things work so the viewer will be better equipped to problem solve when the time comes. We get so wrapped up in just show it being done, with no understanding on HOW it works. Most of owning a classic car or truck or any modified vehicle is knowing how to fix problems when they come along. That’s my focus. If that’s too dry and boring, there are tons of videos out there with far greater entertainment value for you to choose from. 👍

[@Thumper68]

You can overcome restrictions with psi up to a certain point. I was a water well driller pump installer for 20 years and an engineer and I made a bet what a pump would put out when we were about to do a test on a well I said it would do 23-24gpm he said not possible the hose we had hooked up could only flow 15 max. I laughed in his face he said let’s bet how about 10k knowing I didn’t have it and my old man piped up said hell let’s make it 50k then so it’s worth our time. The engineer got real quiet my old man says I got checkbook in the truck. Guy decided let’s just bet for who buys lunch. I said what happened you were the authority a second ago mr. engineer. Me and my old man ate a real good lunch that day we were about sick😂. And the engineer learned that the real world is a lot different then what the text books tell you and that’s why we have to constantly fix that pos system he designed for this multi million dollar place up the hill. We told the developers before we met this engineer it wouldn’t work but it was a class a system and engineer had to design. Ok whatever it was job security he said our install was perfect to his design … no shit that’s why it doesn’t work wrong pumps 😂