jasond26

iTrader: (21)

yes they are to small, but I am running low boost until I can get the low impedence box and injectors.

Bad_Apple

iTrader: (1)

man I bet that set-up screams over 4K RPM's.......

Heck I bet its a beast from the beginning to the end. Nice set-up

blown3qtr

NICE

jasond26

iTrader: (21)

Thanks guys. Yeah it will be great as soon as I can figure out this fuel pressure issue. I can turn the key and the fuel pressure will jump up to 60 but it will immediately bleed back down to 0. When it is idleing it holds steady at 60 but if I press the gas it will drop down to 50. I think maybe my intank pump is going out on me.

dirt track racer 81

iTrader: (45)

ive seen injectors go bad and leak when i turned the motor off

Spoolin

iTrader: (8)

Need a check valve in your fuel system?

jasond26

iTrader: (21)

Yeah I was looking towards the injectors but the pressure holds fine when it is idleing and when I changed the fuel filter it held pressure for the first few cranks but then it went back to the same thing.

The original intank pump has a check valve built into it which is supposed to hold the pressure in the lines which leads me to believe it has something to do with the intank pump. I can here the inline pump run. I am going to take the inline pump out and see if the intank pump builds pressure.

I am not really to concerned with the whole thing, I have this magnafuel 4302 pump sitting here that I have not installed yet, this will give me a reason to go ahead and do it. I just need to drop the tank and put some bulkhead fittings on it to run all the lines and put the pump on.

blown3qtr

Try this. get 2 Vise grip needle nose pliers and a fuel pressure gauge. Hook up the gauge. then pinch off the return line w/ the vise grips. Have a buddy prime the fuel system for maybe 1 sec. (the fuel pressure will shoot up quick) as soon as you hear the pump kick on pinch off the pressure line. then watch the gauge. If pressure drops you know your problem is between the vise grips, i.e. the injectors or regulator diaphram.

If it holds pressure remove just the vise grip from the pressure line. You may want to just start over and prime but only pinch off the return. If pressure bleeds off then it's probably the pump (if the other test passed).

You can try the same test while only pinching the pressure line after prime ( to check the regulator) but the first 2 should give you a pretty good idea of where the problem is.

Also make sure the little Oring on the regulator didn't get lost. I had a similar situation when installing a Radix. The tiny Oring stayed in the stock fuel rail when we pulled the regulator. Pressure would bleed off instantly looked in the stock regulator housing in the fuel rail and saw that little bugger. Put it back on and all was good.

Hope this helps. Sorry so wordy.

Alex

jasond26

iTrader: (21)

Good suggestions, I will give that a whirl. Thanks