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Originally Posted by BC847
(Post 826491)
Cow pies.
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when i installed my 5x14's i raised the idle and turned down my fuel screw (too hot) (but turning down the fuel alone will cause you to raise the idle) I think you just need to adjust your pump. do a lot of reading before you start so you are sure you know what your changing, especially when you get to that fuel screw. your not getting the full potential of those injectors yet.....then you will need to address the fuel supply. :choochoo::choochoo:
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the lope your getting is probably because your new injectors pop pressure is set for a p-pump i bet!
---AutoMerged DoublePost---
Originally Posted by BC847
(Post 826491)
Cow pies.
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"We at FASS have systems for the First Gen's up to 150 GPH"
what is the advanteges to this? and does a fass system just suppy fuel to the pump with more pressure then the stock primer pump? and what do you do with the primer pump when you install a fass system? |
You can either feed the stock primer pump or you can bypass it. We suggest bypassing the stock primer pump and feeding directly into the VE pump.
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Installing larger injectors coupled with turning up the fuel (IP) can result is the IP demanding more fuel than the lift-pump is capable of supplying.
Increasing the fuel pressure available to the IP will not correct a starving IP. Increasing the volume of fuel available to the IP is what is needed. While fuel pumps like the FASS are very capable of meeting the demands of larger injectors / turned up IP, the less expensive low pressure piston lift-pump if not the 12v 2nd gen high pressure piston lift-pump (with a pressure regulator) will satisfy the demands of the typically bombed VE fueled 1st gen just fine. :pca1: |
I went with the walbro fuel pump, with a regulator and i have it set at 14psi. at wot the gauge needle doesn't even wiggle now. :choochoo::choochoo:
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Originally Posted by BC847
(Post 828237)
Installing larger injectors coupled with turning up the fuel (IP) can result is the IP demanding more fuel than the lift-pump is capable of supplying.
Increasing the fuel pressure available to the IP will not correct a starving IP. Increasing the volume of fuel available to the IP is what is needed. O While fuel pumps like the FASS are very capable of meeting the demands of larger injectors / turned up IP, the less expensive low pressure piston lift-pump if not the 12v 2nd gen high pressure piston lift-pump (with a pressure regulator) will satisfy the demands of the typically bombed VE fueled 1st gen just fine. :pca1:
Originally Posted by crewcab59
(Post 828403)
I went with the walbro fuel pump, with a regulator and i have it set at 14psi. at wot the gauge needle doesn't even wiggle now. :choochoo::choochoo:
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Originally Posted by crewcab59
(Post 828403)
I went with the walbro fuel pump, with a regulator and i have it set at 14psi. at wot the gauge needle doesn't even wiggle now. :choochoo::choochoo:
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Originally Posted by BC847
(Post 828613)
Same here. I'm running the Walbro 392 with a bypass type regulator set at 12psig, 3/8" supply and 1/2" return lines. At full song, the 6x0.016" injectors are putting just shy of 500hp to the ground while pulling the IP inlet pressure down to only 10 ~ 11psig. ;)
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