Fuel pump

[62barsoom]

The cheap chinese fuel pump left me stranded yesterday. So a roll back ride and a more expensive chinese pump it runs. I thought the wacky gauge was due to the old pump. Not. Why in the world would stepping on the brakes make the gauge jump?

 

[Caman96]

So worth it…

Walbro & TI Automotive - Fuel Pumps - Fuel Systems

Walbro performance fuel systems are designed to deliver the speed, power, torque and reliability you expect. That’s why Walbro high-performance fuel pumps and modules are developed and built specifically to meet the demands of today’s high-pressure and high-flow engines with efficient and...

walbrofuelpumps.com

 

[PlayingWithTBI]

So worth it…

Yeah, especially since the AC Delco EP385 seems to be NLA

 

[Caman96]

Yeah, especially since the AC Delco EP385 seems to be NLA

Walbro 5CA400-1 Walbro Electric In-Tank Fuel Pumps | Summit Racing

Free Shipping - Walbro Electric In-Tank Fuel Pumps with qualifying orders of $109. Shop Fuel Pumps at Summit Racing.

www.summitracing.com

 

[62barsoom]

So using a higher dollar pump wouldn't make the gauge jump with brake application?

 

[Caman96]

I never said that. You said this:

The cheap chinese fuel pump left me stranded yesterday.

I showed you a link that imo is a great pump. I don’t think $67.00 for a fuel pump is “high dollar” either.

 

[PlayingWithTBI]

Walbro 5CA400-1 Walbro Electric In-Tank Fuel Pumps | Summit Racing

Free Shipping - Walbro Electric In-Tank Fuel Pumps with qualifying orders of $109. Shop Fuel Pumps at Summit Racing.

www.summitracing.com

For a mildly built TBI, or carbed engine, that may work. But not on a Vortec (needs 60PSI min) or a well built TBI. IIRC the EP385 is rated 155Lph @ 65PSI so, I would go with the Walbro 255LPH one to ensure enough flow.

 

[Caman96]

For a mildly built TBI, or carbed engine, that may work. But not on a Vortec (needs 60PSI min) or a well built TBI. IIRC the EP385 is rated 155Lph @ 65PSI so, I would go with the Walbro 255LPH one to ensure enough flow.

I wondered that to, so I contacted them:

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The pump works flawlessly in my 5.7 Vortec, they also confirmed fitment for my truck.

 

[PlayingWithTBI]

I wondered that to, so I contacted them:

The pump works flawlessly in my 5.7 Vortec, they also confirmed fitment for my truck.

That's cool. How about its flow? Seems to me it's still not enough. When I'm running up to 90% injector duty cycle @20 PSI on WOT I'm a little Leary - I may be wrong, I just want the peace of mind I have enough pump down there.

 

[Caman96]

That's cool. How about its flow? Seems to me it's still not enough. When I'm running up to 90% injector duty cycle @20 PSI on WOT I'm a little Leary - I may be wrong, I just want the peace of mind I have enough pump down there.

It can handle 120psi, my 5.7 Vortec requires 63psi. Not sure I’m following you.