Stop in for a cup of coffee

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I have done some reading on "upgraded" fuel pumps.. you'll be stunned to find that the OEM mechanical type is good to go - - if you HAVE to do something else - think block off plate, electric pump, regulator. GOOD reading here:
http://www.heritech.org/cuda/fueldelv.html
straightlinespeed said:
Just thinking it was time to get a beer! Today was one of the longest days ever at work! Now Im just doing some research for an upgraded fuel pump for the 360 and also looking into building AR's
Click to expand...
 
ScampMike said:
I have done some reading on "upgraded" fuel pumps.. you'll be stunned to find that the OEM mechanical type is good to go - - if you HAVE to do something else - think block off plate, electric pump, regulator.
Click to expand...

We did a fuel pump run test. My stock carter pump is good for normal cruising. If I ever wanted to race it, or go fast for longer than a quarter mile, it cannot keep up to the demand of the engine.

This is a short version of my pump

6.1psi @ 3500rpm
5.3psi @ 4000rpm
4.6psi @ 4500rpm
4.0psi @ 5000rpm
3.5psi @ 5500rpm

So needless to say it isnt what I optimally need.

I was looking at the carter strip pump, but it needs a regulator. I have the regulator but I would like to run a return line. I'm wired for an electric pump but Im not sure I want to run one.
 

the electric pumps can be annoying because of the noise... on the other hand.. positive pressure at all flight levels is a good thing..
straightlinespeed said:
We did a fuel pump run test. My stock carter pump is good for normal cruising. If I ever wanted to race it, or go fast for longer than a quarter mile, it cannot keep up to the demand of the engine.

This is a short version of my pump

6.1psi @ 3500rpm
5.3psi @ 4000rpm
4.6psi @ 4500rpm
4.0psi @ 5000rpm
3.5psi @ 5500rpm

So needless to say it isnt what I optimally need.

I was looking at the carter strip pump, but it needs a regulator. I have the regulator but I would like to run a return line. I'm wired for an electric pump but Im not sure I want to run one.
Click to expand...
 
straightlinespeed said:
We did a fuel pump run test. My stock carter pump is good for normal cruising. If I ever wanted to race it, or go fast for longer than a quarter mile, it cannot keep up to the demand of the engine.

This is a short version of my pump

6.1psi @ 3500rpm
5.3psi @ 4000rpm
4.6psi @ 4500rpm
4.0psi @ 5000rpm
3.5psi @ 5500rpm

So needless to say it isnt what I optimally need.

I was looking at the carter strip pump, but it needs a regulator. I have the regulator but I would like to run a return line. I'm wired for an electric pump but Im not sure I want to run one.
Click to expand...

If you run the Carter electric rotary vane pump P4070 (72 gph, 4-8 psi) like I have, you don't need a regulator or a return line.

 
I have to qualify my statement - you guys have sound deadening.. seats etc., so it very likely won't be too too bad.. mine is mounted a the trunk that might as well be open.. aluminum sheets riveted to a steel frame piece...
Ddaddy said:
You can drastically reduce the noise by mounting it with a thick rubber isolating plate.
Click to expand...
 
ScampMike said:
the electric pumps can be annoying because of the noise... on the other hand.. positive pressure at all flight levels is a good thing..
Click to expand...

I agree I had a holley pump in a Jeep I built and thank gosh it was a noisy jeep

Ddaddy said:
If you run the Carter electric rotary vane pump P4070 (72 gph, 4-8 psi) like I have, you don't need a regulator or a return line.

Click to expand...

Hmmmm, I'll check into that one.

I was considering the Walbro 392 pump but it needs a regulator and return line. I see a lot of guys run them. Im just not sure Im comfortable running an electric pump I would hate for it to fail and then Im stuck.

Ddaddy said:
You can drastically reduce the noise by mounting it with a thick rubber isolating plate.
Click to expand...

I would for sure design something to make it quite if I go that route.
 
My Electric Malory fuel pump only makes noise when it is priming, like every morning. that is how I know carb is full of gas, it quiets down ALOT. when engine starts, just the soft purr of Mopar power! I used Lord mounts.
 
straightlinespeed said:
Hmmmm, I'll check into that one.

I was considering the Walbro 392 pump but it needs a regulator and return line. I see a lot of guys run them. Im just not sure Im comfortable running an electric pump I would hate for it to fail and then Im stuck.

I would for sure design something to make it quiet if I go that route.
Click to expand...

All new vehicles use electric fuel pumps and they are just as reliable as a mechanical one is.

The biggest advantage is instant fuel flow to the carb before you even turn the key to crank. 3 turns and it fires right up!
 
Its not the modern fuel pumps Im worried about its the aftermarket ones. I've been reading reviews on the carter and others and they all seem to have pretty decent reviews. It just has to be fairly quiet unlike that dang Holley one I had.
 
straightlinespeed said:
Its not the modern fuel pumps Im worried about its the aftermarket ones. I've been reading reviews on the carter and others and they all seem to have pretty decent reviews. It just has to be fairly quiet unlike that dang Holley one I had.
Click to expand...

The one I'm using had good reviews and my Speed shop has put them on a lot of vintage vehicles without any issues.

The trick is to put a rubber isolating plate between the pump bracket and mounting surface and rubber washers between the mounting bolt heads and the pump bracket.

You can also hang it off rubber straps like exhaust hangars use so that no vibration is conducted back through the car body. The pump isn't heavy and with rubber fuel lines it can hang just fine without any issue for the connections.
 
You can also carry a spare pump and add quick disconnect electrical connections near the pump so that if it ever fails, it's a 15 min job to swap it out. Although, I doubt you would ever need it. Vane pumps are pretty robust.
 
Is it worth rebuilding a 73 starter? Is there a kit available (brushes, solenoid, washers\clips).... Or should I just get a new\rebuilt mini starter?
 
Ben Drinkin said:
Is it worth rebuilding a 73 starter? Is there a kit available (brushes, solenoid, washers\clips).... Or should I just get a new\rebuilt mini starter?
Click to expand...

I'd get a new mini starter. I love mine! It's compact, strong and reliable. 10 years old and still going strong. Just hearing it run will make you a believer. :)
 
I will always us the mini starer Ben, spins the engine faster and I believe they use less amp draw all great things in my book sir, I would use the big starter only if it had to be a show car with oem parts.
 
Thanks guys. Looking at parts, it'll cost me nearly as much to return my current as to buy a'new' mini. I'll go mini... And since I'm kind of a nerd, I'll probably redo the fatty and sit it on a shelf..
 
Ben Drinkin said:
Thanks guys. Looking at parts, it'll cost me nearly as much to return my current as to buy a'new' mini. I'll go mini... And since I'm kind of a nerd, I'll probably redo the fatty and sit it on a shelf..
Click to expand...

If you were really a nerd, you'd redo it and put it on display inside the house!

You know Rani would...LOL!
 
I have 3 on the shelf (refrigerator) waiting for an emergency in one of the drivers.
I can't remember EVER having a starter go out on me. I went mini on my 360 build for Victoria, the same starter I used on the slant six. Love what ma Mopar did.
 
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