rgp6373 Posted April 12, 2008 Report Share Posted April 12, 2008 this is a short video from inside my truck while taking off from a dig . does the drop in fuel pressure seem strange to anyone ? at the end just before i let off it really drops not sure if thats normal http://videos.streetfire.net/video/silverado-ss_155066.htm Quote Link to comment Share on other sites More sharing options...
SS Silv Posted April 12, 2008 Report Share Posted April 12, 2008 Cool video man. Any clips of the MPH/RPM? Quote Link to comment Share on other sites More sharing options...
scooter3 Posted April 12, 2008 Report Share Posted April 12, 2008 Don't know anything about fuel pressure, but your truck sounds awesome! Quote Link to comment Share on other sites More sharing options...
rgp6373 Posted April 12, 2008 Author Report Share Posted April 12, 2008 i will have more videos once i get my transmission back in . it blew out 1st and 2nd gear Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted April 12, 2008 Report Share Posted April 12, 2008 to me thats quite a bit of fuel psi drop? what injectors are you runing? are you logging you runs? Quote Link to comment Share on other sites More sharing options...
NTMD8R_SS Posted April 12, 2008 Report Share Posted April 12, 2008 Cool vid. Quote Link to comment Share on other sites More sharing options...
rgp6373 Posted April 12, 2008 Author Report Share Posted April 12, 2008 i dont have a logger and i am running 60lbs injectors Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted April 12, 2008 Report Share Posted April 12, 2008 wow your fuel pressure really dips at high RPM truck sounds good though Quote Link to comment Share on other sites More sharing options...
Turbocoop Posted April 15, 2008 Report Share Posted April 15, 2008 that seems weird, I dont know enough about fuel and FI to help you though. I dont see how it could be normal though??? So you have a flex fuel pump- how much it it supposed to flow? Quote Link to comment Share on other sites More sharing options...
Simon Posted April 20, 2008 Report Share Posted April 20, 2008 (edited) What kind of fuel regulator do you have? That drop is not good IMO. Does your a/f ratio change as well? how many lph is your pump? I have a 255lph and a Aeromotive fuel regulator and I'm fine all the way steady at 62. Edited April 20, 2008 by Simon (see edit history) Quote Link to comment Share on other sites More sharing options...
richbaker Posted April 23, 2008 Report Share Posted April 23, 2008 that's some whacked out speed man may i know what car parts are you using? coz i kinda like the performance. ______________________________ Car Covers | Car Mirrors Quote Link to comment Share on other sites More sharing options...
.justin. Posted April 23, 2008 Report Share Posted April 23, 2008 Are you doing any data-logging? Could hear the engine acceleration reduction due to the spark retard shortly after you dropped into 3rd. Quote Link to comment Share on other sites More sharing options...
misterp Posted April 23, 2008 Report Share Posted April 23, 2008 I would re-visit the fuel system, it's not enough to keep up with the demands of the motor after about 4500-rpm (going by ear); I would not be bothered with a drop of a couple psi but that's too much IMO. Mr. P. Quote Link to comment Share on other sites More sharing options...
sprayed99 Posted April 23, 2008 Report Share Posted April 23, 2008 time to upgrade to the walbro pump trash that e85 pump Quote Link to comment Share on other sites More sharing options...
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