jleews6

iTrader: (2)

Does anybody run the magnafuel 4303 with an intank pump feeding it? Im thinking about this pump but I know some of these pumps are not good at pulling fuel just pushing.

FirebirdSS

iTrader: (7)

I had my 4303 about a 10" inches above my sump with a 2' -12 an hose with a huge pre filter and have no issues priming.

345LSX

Do you have to use the controller ?

jleews6

iTrader: (2)

Thanks for the info. Thats what I was looking for. I dont want to have a sump and was worried about it being able to pull the fuel up.

FirebirdSS

iTrader: (7)

Closer is always better, but i seriously had 0 issues. I was a little surprised.

bmxer8699

iTrader: (16)

Twin Walbro 450's

Chris'stransam

iTrader: (7)

Anyone using a 4303 with a boost a pump ? I am in the same boat . I am building a 408 with a Novi 2200 supercharger. Just trying to get some ideas

VIPERSLYR

Twin walbro 255 and 100% meth 96 lb injector on 94 pump gas

stock48

iTrader: (17)

Yes sir.

a98ws6

iTrader: (48)

I think im going to pull the trigger on a Magnafuel 4303. Just trying to decide on injectors. Looking at any and all ideas. I keep seeing Bosch 160's a lot, but the prices are anywhere from $550-1600?? Where and which ones to buy? Also like the FIC and ID injectors but not sure which ones would get the job done from them?

LILHEMI

stock sumped tank with a 4303 and ID 1300 injectors. absolutely no problems other than my relays wanting to melt under heavy abuse. the 4303 is a beast.

coltboostin

As many used 255's that I can find laying in the junk pile with heavy gauge wire and a few relays

Shoaf85

iTrader: (9)

Primary pump when not in boost is an in tank Walbro 255. Then my aux. pump is a MF4303 activated on a 2 psi hobbs switch. E85 w/ Deatschwerks 96lb inj. (108lb at my base fuel psi of 65). Not sure on dyno numbers but its a 155-160mph car. Injectors are maxed out at this level though.

a98ws6

iTrader: (48)

When the aux pump is activated, does it turn off the 255 or do they work together?

samdogmx

iTrader: (14)

ran the holley 1800 last year

now has an aeromotive red mechanical pump

E85

gnx7

iTrader: (28)

dual Bosch 040 before needed a BoostaPump and ID1600's for GTS76 turbo on e85 to go 162mph....
current PT8847 runs dual walbro 450lph e85 friendly pumps on e85...

Haven't maxed out the turbo since I have a stock LS1 crank inside with good rods/pistons; however it made 1050rwhp on 14psi/1060rwtq..... been up to 20psi a few times in 4th and 5th gear in the 1/2 mile racing. It pulls hard on that setting.

we are lucky in NorCal and I've found a couple e85 stations that are 83-85% year round.

oscs

iTrader: (19)

Edit* just realized you where using 040 and not 044 pumps.

Shoaf85

iTrader: (9)

Both run together

68 SS

iTrader: (23)

Accel 75710 pump, not a well known pump but its a monster and reasonable priced basically a belt drive pump with an electric motor.