fuel pressure falling
Thread Starter
Teching In
Joined: Sep 2002
Posts: 28
Likes: 0
From: Georgia
fuel pressure falling Dyno thursday every time kicked down fuel pressure would drop from 60 to 30 pds. Car run real lean. 2002 running stock in tank and areo 1000 inline with 50# injector. Pulled 505 hp at 4500 steady drop of after. haven't seen this problem til I increased injector and supercharger boost to 15#. any ideas?
TECH Apprentice
Joined: May 2002
Posts: 383
Likes: 0
From: Jacksonville
Re: fuel pressure falling My guess would be the stock intank FP is your problem. I had a T-Rex inline with the stock pump not too long ago and my dyno went pretty much the same way but. My Tuner said the Stock pump can't keep up with the fuel demands of the inline and is working as hard as it can but it's just not going to handle that kind of need and that I should get the walbro 340 intank pump and get rid of the inline all together. I've done that and would recommend you look into it as well
Re: fuel pressure falling I agree with that.better change that stock pmp.pushing that high boost.its not that bad.at least you dont have to drop the rear.been there done that twice.
Re: fuel pressure falling do the walbro in tank and loose the in-line.. but i would also be suspect of that stock regulator since the drop is so big with 2 pumps going..
my stock regulator was bad. i replaced it when i upgraded the whole fuel system with an aftermarket one.
my stock regulator was bad. i replaced it when i upgraded the whole fuel system with an aftermarket one.
