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Forum namePerformance/Engine
Topic subjectWhat will happen with an upgraded fuel pump on a stock motor?
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=87867
87867, What will happen with an upgraded fuel pump on a stock motor?
Posted by CopperEclipse96, Apr-05-05 05:53 PM
I think my fuel pump may be bad. I have an Accel pump at my house, just sitting there with other various parts from the turbo project that I've been working on for god knows how long. What would happen if I installed it on a stock engine? Would I run super rich, or would the stock FPR take care of it? This may be a dumb question, but I'm looking at any possible way to get my car back on the road.
87868, RE: What will happen with an upgraded fuel pump on a stock motor?
Posted by CopperEclipse96, Apr-05-05 05:59 PM
yeah, nevermind. i forgot that the accel is an inline pump. mods.... delete this because i'm a moron. thanks.
87882, RE: What will happen with an upgraded fuel pump on a stock motor?
Posted by CJ_96RS, Apr-06-05 06:32 AM
I wouldn't mind knowing the answer to this one... I'm running a Walbro 255 on my mostly stock engine for the same reason, stock fuel pump went bad and haven't installed the turbo kit yet. Then again, my car runs fine and gets good mileage, so maybe I just answered my own question.
87884, RE: What will happen with an upgraded fuel pump on a stock motor?
Posted by mcgyvr, Apr-06-05 06:41 AM
nothing, thats what a fuel pressure regulator is for. youd be getting the same fuel pressure, same line size so the amount of fuel the warlbro is putting out would be the same as the stock part. IMO I could be wrong though. the walbro is just capable of putting out much more fuel thought if the need arises
87886, RE: What will happen with an upgraded fuel pump on a stock motor?
Posted by a_miller_76, Apr-06-05 06:57 AM
Originally posted by mcgyvr
nothing, thats what a fuel pressure regulator is for. youd be getting the same fuel pressure, same line size so the amount of fuel the warlbro is putting out would be the same as the stock part. IMO I could be wrong though. the walbro is just capable of putting out much more fuel thought if the need arises


Yeah but Ian's is an inline pump which if he installed it on his stock car would go after the regulator and would be bad news unless his FPR is up front on the rail (not sure if his car is like that or not).