hey i just joined looking for some help. high fuel pressure. around 70psi at idle. just installed a 255LPH WALBRO pump. return line is clear and i replaced the regulator. how much pressure can the system handle? any ideas? thanks
eric

 

key on not running: 49 to 50 psi

engine at idle : pressure should drop by 3 to 10 psi

don't allow fuel pressure to exceed 60 psi.

most likely vacuum problem..

 

try unhooking the vacumn line that goes to the regulator and see what the fuel pressure is.

 

i replaced the regulator. i also removed the line and there was vacuum. i didn't measure it or apply vacuum. i know the specifications. thanks

 

So the regulator replacement fixed your issue?

 

try an adustable pr.
http://www.thrashercharged.com/store...cessories.shtm

 

no. if you read my o.g. post. i listed the regulator as one of the replacements

 

yes i did notice. i recomended an adjustable one. then u can adjust the pressure to were u want it. just a thought. it may be that the fuel pump is pushing to much pressure for a stock fpr. if your vacumn is correct i cant think of anything else.

 

thanks. um... ive been looking for an adjustable fpr. i only found 1 company that had the series II 3800 parts and i was unable to contact them. i found the regular after market stuff but i didn't want to call. ive had 4 months of head aches listening to dumbasses when i try to tell them my problem and they just want to tell me stuff. any ideas where to get an ADJUSTABLE FUEL pressure regulator