94Rx-7

iTrader: (2)

Im shooting for around 500hp what fuel pump setup should I get? I been looking around but im undecided if I should go dual intank or something else. Any info would help.

silverfdturbo6port

iTrader: (26)

i am shooting for the same power at the moment i am going with a supra fuel pump and 850/1600 injectors

you could always run two walbros and the other feed line could be your evap line that was another thought that i did not do cuz i did not know if it would work lol

Busted7

Use the evap line for the return, its works!

94Rx-7

iTrader: (2)

I have that set up now but I thought the supra pump was only good for 400-450hp

BC-FD3S

iTrader: (2)

supra pump + boost - a - pump

fastassturbo2

iTrader: (9)

+1 its what I am doing as well, after discussing with Mr. Howard Coleman

silverfdturbo6port

iTrader: (26)

so what is the best pump set up.

juicyjosh

iTrader: (29)

I'm using a Denso fuel pump #950-0155, and I'm happy with it. It's a direct replacement for the FD pump, doesn't make any extra noise, and not too expensive.

Josh

silverfdturbo6port

iTrader: (26)

but does it support 500hp at a good psi like 43 psi?

hondahater

iTrader: (2)

I'm using the 044 and a boost a pump.

silverfdturbo6port

iTrader: (26)

how exactly does that work do you have a pump after a pump or what?

rx7fc90

on the fc3spro site i saw that the mallory 110fi pump outflows the aeromotive im thinking of going that route since ive had a A1000 previously and the brushes detached from the motor so i wasn't pleased also its cheaper than the a1000 goes for 260$ at jegs and summit racing but i think those pumps are for hard core drag racers like erniet and such people , has any body ever tried dual 044 pumps ? that would cover this guy i think

hondahater

iTrader: (2)

A boost a pump is basically a vacuum/boost driven device that raises and lowers voltage to the fuel pump. The mustang guys have had nothing but good luck with the kenne bell boost a pumps and even some rotary guys have proven that they work great. I haven't dyno'd my car yet but will be hopefully this weekend. So far at 18psi on a t70 the tuner has seen no issues with this setup. I will be boosting higher than this if it doesn't hit 500hp at 18psi and have no doubts that it will easily support that power. I know all setups are different but I do believe jrat has proven that even a walbro 255 can support 500hp and a Bosch 044 outflows a 255 + the boost a pump should mean it will take 500 without a problem and you have the reliability of a nice Bosch fuel pump.

silverfdturbo6port

iTrader: (26)

hmm ok. how does it boost the voltage to the pump even with it running max voltage?

Monkman33

iTrader: (28)

You can sacrifice amperage for voltage. as long as there is extra amperage, you can convert it to higher voltage.

How do you think they get 20,000 volts out of 4 AA batteries in a stun gun? (AA's are only 1.5v each, or 1.2v for rechargeable cells)

So the Bosch 044 can handle a 500hp setup eh? Add the Boost a pump and you have yourself a reliable setup.

94Rx-7

iTrader: (2)

how would you setup the Bosch 044 being that its on inline pump do you still use your intank pump?

silverfdturbo6port

iTrader: (26)

what about running a supra pump in the tank and a boost a pump? i hear supra pumps are enormous and can support 700+ hp. cuz i reall dont want to run a inline pump and yea how would you hook one up anyway if you had a intank pump?

Busted7

There the same size as the other pumps and they are not enough for a safe 500 hp in a 7 from what i hear. And 700hp in a supra is not the same as an rx7.

fastassturbo2

iTrader: (9)

denso pump is the supra pump ---> Denso fuel pump #950-0155

silverfdturbo6port

iTrader: (26)

could one in tank pump and a boost a pump support 500? and how much fuel pressure is best

fastassturbo2

iTrader: (9)

Correct...but unsure of pressure..all depends on boost settings

94Rx-7

iTrader: (2)

for the Bosch 044 Fuel Pump RX-7 Store recommends they be installed between the factory (or another aftermarket) in-tank fuel pump, and the fuel rail. In addition, feeding these inline pumps with another pump (in series), will boost the output of the Bosch 044 fuel pump even higher. So if thats correct then this set up would be able to handle 500HP. Right?

94Rx-7

iTrader: (2)

How would you wire the bosch pump if you were to do what my previous post says?

silverfdturbo6port

iTrader: (26)

run another relay but run a T off the switching wire that turns the stock pump relay on.

Monkman33

iTrader: (28)

Which in-tank pump is good for 500 hp? I am aiming for 425 whp, so I think a 500hp pump should suit my needs, no? Or is the hp rating of pumps relatively arbitrary?

I will also be running a boost-a-pump, but I would like a pump that would do its job without it, and then improve from there.

Also, i prefer a single in-tank pump.