redformulaws6

iTrader: (9)

Okay guys car is a 2003 with a brand new set up. Fully forged 347 with stage 1 317 port and polish 72cc heads, and a stage 2 blower can 227/236 115 + 4 lsa and fast 92mm intake. Car is equipped with a Vortech v-1 T trim kit with a 4.00 pulley making 8lbs of boost. Compression ratio is 9:5:1 I believe (zr1 head gaskets) also the car has american racing headers and mid pipe combo with a borla catback. My question is can the car make 700hp on pump or will I need to upgrade the fuel system and run meth? Car has 80lbs injectors, boost a pump and walbro 340. Any input or suggestions are appreciated.

Silver408z

iTrader: (1)

I make 700 on pump only but I am nitrous. Not sure about blowers. Most run meth for safety.

CAMSTER

iTrader: (10)

Too much cylinder pressure for a 3.9 cylinder bore to go to 700 wheel horse power on pump gas imo.

Fuel pump you have should be sufficient, you should be able to run 12 psi with pump gas.

You can do anything you want with e85

ysb02

You'll probably either need a 2nd in-tank pump or an external pump. I think the walbro peters out ~600-650hp.

C5natie

iTrader: (1)

ysb02 is correct. I was running two 340s before making 610rwhp on 8psi. I had enough pump for more but I switched to e85 and walbro 450s making 690rwhp with 11psi and conservative timing. I dont care for boost a pumps so I had two pumps hard wired in. Better to go with a return style fuel system too.

C5natie

iTrader: (1)

Still got the two 340 pumps laying around if you need one.