Birddog
04-10-2007, 05:00 PM
Trying to get fuel worked out on the Dakota and just wanted to get some advise from the people I trust.
Basics: 2001 Dak R/T 5.9, Vortech V1 7# boost, home ported intake, 53mm tb, MP PCM, Hi6R with boost referenced timing retard and returnless fuel system.
Current setup is stock 19lb/hr injectors, stock pump (190lph) with two 42lb/hr "extra" injectors driven by a SS box..(Vortech says this is a solid setup:rolleyes: )
I run out of fuel at 5200rpm, pressure rolls down from 45#@35xx rpm to 25#@5200 and the rappitatappita begins.
SO... I got a deal on an FMU(thanks Heath), a killer deal on 24# injectors, and will be calling one of our vendors for a rail mounted 255 pump. I'm hoping this will help supply the fuel I need for the time being...
Any input on this?? Advice?? Warnings??
(I did do the math and going by factory HP of 245 and .50 BSFC, 24# injectors should have been stock.
If I use .65 BSFC and Vortech's claimed power levels (345hp/405tq) I come up with the need for 33lb/hr injectors. Obviously I can't do that with the OBD2 computer without doing a MS piggyback but it is the next step when the juice comes:D )
ANY ADVICE OR INFO IS WELCOME
Basics: 2001 Dak R/T 5.9, Vortech V1 7# boost, home ported intake, 53mm tb, MP PCM, Hi6R with boost referenced timing retard and returnless fuel system.
Current setup is stock 19lb/hr injectors, stock pump (190lph) with two 42lb/hr "extra" injectors driven by a SS box..(Vortech says this is a solid setup:rolleyes: )
I run out of fuel at 5200rpm, pressure rolls down from 45#@35xx rpm to 25#@5200 and the rappitatappita begins.
SO... I got a deal on an FMU(thanks Heath), a killer deal on 24# injectors, and will be calling one of our vendors for a rail mounted 255 pump. I'm hoping this will help supply the fuel I need for the time being...
Any input on this?? Advice?? Warnings??
(I did do the math and going by factory HP of 245 and .50 BSFC, 24# injectors should have been stock.
If I use .65 BSFC and Vortech's claimed power levels (345hp/405tq) I come up with the need for 33lb/hr injectors. Obviously I can't do that with the OBD2 computer without doing a MS piggyback but it is the next step when the juice comes:D )
ANY ADVICE OR INFO IS WELCOME