Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

just a regular walbro 255 and its a AEM FPR i also replaced it with a stock on that didnt make a diff.

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

---- IT its fixed=NO Boost :-\

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

did you check the banjo fitting on the end of the fuel rail and make sure it has the right washer in it, or has a hole drilled in the rail... if not just drill a hold in it so the gas can flow.. i've had that happen 3 or 4 times.

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

Yep has correct washer/holes in the rail. The car just started doing this after i put 550's in, it was fine with 450's :l

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

walbro

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

eh i dont think so the first one was new, and the 2nd one worked fine in my buddys car

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

That is it you give up :3

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

did you try re-intsalling the 450's?

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

nope i sold them before i knew of this problem :-[ I dont see how injectors would make fuel pressure drop off in boost but who knows :-\

Re: Fuel pressure drops off in boost. :::::::::::::HELP::::::::::::
 

The current injectors might not be 550's.

Seen it before. If the injector scaling is way off, you can tell.