fuel pressure?

[tyfoo]

do I set the fuel pressure at 46 at a idle with the hose disconect .
or shut down with the pump running?

 

[ABLITZ]

Re: fuel pressure?

do I set the fuel pressure at 46 at a idle with the hose disconect .

 

[tyfoo]

the atr afpr when screwed tight only takes me to 38
engine not idleing and vacume off
how would i bring the pressure up?

 

[tyfoo]

can you damage the afpr by turning it in tight?

 

[gmcturbo]

if your max pressure is that low you got a problem. checkyour fuel pump and lines for kinks.

 

[TurboPhoon]

What is the fuel pressure with a stock fpr? I have a 225 wal. pump and i think mine is only around 40psi.

 

[tyfoo]

i lossen the nut and turned the bolt
and i'm up to 42 psi ( not runing and vac disconnected)
theres a slight breakup around 1500 rpm
should i go up to 45-46 or down to 38-40?

also over bossting withe the rod all the way out only holding by a thread

 

[turbodog]

Try again with engine running and vacuum disconnected, just to be sure. Could be low voltage to pump. You need to be at 46 PSI.

 

[tyfoo]

ok
the directions that atr was wrong and there is an adjustment screw
the manual says to go between 38-40
do I then add 1pound for boost to make it 52 psi if it runs to 14 pounds of boost before cutting out?

 

[GM TURBO]

No - the AFPR will adjust with boost. Set it to 43-46 (whatever is best for your situation) and let physics do the rest.