Bumping an old thread- This is good info! I'm actually planning to run a Magnafuel 4303 and was curious as to if it would supply enough fuel for my 13B build. Looks like it will be sufficient. I ran this pump about 8 years ago on my Turbo Civic and had great results. Its really hard to beat for the money IMO.

 

requesting a flow/pressure chart and will post it w power calcs for you

 

 

All the info here: Blog Post Testing the TI Automotive (Walbro) F90000285

Long story short, it flows more but also pull more amps.

 

Just because I'm arisen anew...

Spic Racer fuel system 3.0: Walbro 274 as lift pump and Weldon D2015A as pressure pump (@ 58psi base fuel pressure)

• At least until the shitbag Paul Yaw finally releases his unobtanium pump
• Love the individualize data sheet for each Weldon pump
• Racegrade solid state relay for PWM control of both pumps
• Bosch 044 provided for reference

 

Why not sump the tank, and run the weldon by itself? One less item to fail/worry about.

 

With the MTBF of modern pumps and proper filtration, I'm good with the Benefit-Cost Analysis of my lift pump - swirl pot - pressure pump setup vs sumping the tank. The next upgrade will be a fuel cell.

 

Reviving an old thread.

With the new technology in fuel pumps over the recent years, I am wondering if running a lift and dual pumps is now obsolete? In addition to the plumbing, electrical and multiple physical units, could all of this now be replaced by a newer high flow pump?

Example-
https://fuelab.com/i-285-1100lph-twi...kit-20815.html

They have a 25 and 30A PWM to drive the pump, with remote V sensor for new ECUs. Can ramp the pump with boost.

I am not a builder and do not claim to know a great detail about high HP cars(relative to a builder), but am I wrong in thinking this pump with its PWN module should be able to easily manage a 700+ Rwp rotary?

Eric

 

I chose the BKS1001/E5LM for my build as I never really liked the idea of parallel pumps and I like the ability to dial it down via PWM. It's in a surge tank so I still have a lift pump but it would be even nicer for those with a decent in-tank sump.

Torqbyte has a voltage boosted controller for the same pump which cranks it up to like 1200LPH, but that fuelab pump looks pretty sweet as well. I personally think brushless is the future (size/efficiency) but a big ol' weldon definitely gets the job done too.

 

A single high flow rate pump doesn't alleviate fuel surge unless you are running a hydramat or some internal anti-surge arrangement.

 

Understood. I wasn't yet getting into anti-surge, but to your point, a high flow single pump with a hydramat was exactly what I was thinking. My FD is not a road course car, but wanted added protection from fuel starvation under acceleration.