RAMJET crate motor EFI fuel pump

[WIDESIDE72]

A buddy of mine splurged and bought a 350 Ramjet crate motor for his 68 step side. He already has a rear mount aluminum fuel tank and he was going to run an external electric fuel pump. I have heard nothing but bad things about the reliability of the electric pumps when run at the high pressure that EFI requires. The tank he has does not currently have a provision for a drop in fuel pump. Does anyone have any quick and easy suggestions? If not any hard and difficult suggestions?

[neonlarry]

Check this out: http://www.thedetailzone.com/Tanks%2...%20Install.htm
I don't know where you heard that about fuel pumps almost all cars from the late 80's up use them. I have only replaced three in over a million miles.

[WIDESIDE72]

Originally Posted by WIDESIDE72

... he was going to run an external electric fuel pump.

External as in mounted to the frame rail, not in the pump. I am referring to external pumps, not internal. I'm aware that cars since the 80's used internal. My buddy is wanting to use an external, where it is not submerged in the gas to keep it cool.

[clay68c10]

I've replaced a zillion in-tank pumps at work in the past 8 years turning wrench professionally. I've replaced 2 external pumps and they were just for bleeding off residual pressure when the car was shut off and causing a slow to start condition. Most of those internal pumps were for outright failure and required the car to be towed in. The only reason to replace the entire pump for those 2 externals is that warranty doesn't want you to just put a check valve in.
As long as you mount the external pump low relative to the bottom of the tank, you shouldn't have any problems.
...And make sure the pump is rated at the proper pressure & volume for your application.

[WIDESIDE72]

Was the experience with the externally mounted pumps with 30-40 psi fuel pressure needed for EFi,or low pressure for TBI or carb?

[Lugnut64052]

Originally Posted by clay68c10

I've replaced a zillion in-tank pumps at work in the past 8 years turning wrench professionally. I've replaced 2 external pumps and they were just for bleeding off residual pressure when the car was shut off and causing a slow to start condition. Most of those internal pumps were for outright failure and required the car to be towed in.

That's pretty much been exactly my experience too. Replaced many dozens of in-tank pumps. Very few external pumps. Doesn't matter what the system pressure is; the in-tank pumps aren't nearly as reliable.

[N2TRUX]

I have an external pump running my Ramjet 350 and haven't had any problems. It doesn't have a ton of miles on the motor, but so far so good.

[hammered]

what pump are you runnin n2truxs

[WIDESIDE72]

Originally Posted by hammered

what pump are you runnin n2truxs

Aeromotive. I am not sure of the PN at the moment.

[WIDESIDE72]

Got the engine and trans set it the truck Sunday. We still have not figured out what the P.O. was smokin' when he painted the frame RED (!)

[x ReAcT x]

Im glad to see someone started a thread like this. Im in the same situation. I want to go with an internal pump though. Is there anyone who could tell me what a good set up would be? (like what kind of pump to use, and wether or not it will fit into the stock gas tank that fit in the truck, its an 86 GMC) Any help would be much appreciated.

[Katrina/10]

I use an inline E2000 fuel pump available at any parts store. Works fine.

[x ReAcT x]

Originally Posted by Katrina/10

I use an inline E2000 fuel pump available at any parts store. Works fine.

Thank you i guess ill have to try that.