walbro 255lph
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04-22-2008, 03:49 PM
#8
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Twin 255s in tank for 2001 C5 Sorry to hi jack this thread 
Currently I'm running a P1SC-1 with 42s, one 255 in tank, and KB BAP. I'm running out of fuel (starts to lean out) on the top end at around 5000 rpm making 8psi, and the fuel pressure drops from approx. 60 psi to 45psi (this is unacceptable). The injector duty cycles are over 120, I think Im running out of pump, I cannot see going to 60# injectors as I have stock heads and cam.
I have seen others run around 5 or 6 psi with a racetronix and BAP with no problem, but they are staying in the 470 to 500 rwhp range, I think I'm going to be over that.
Let me know what you think.
Later,
Max
Currently I'm running a P1SC-1 with 42s, one 255 in tank, and KB BAP. I'm running out of fuel (starts to lean out) on the top end at around 5000 rpm making 8psi, and the fuel pressure drops from approx. 60 psi to 45psi (this is unacceptable). The injector duty cycles are over 120, I think Im running out of pump, I cannot see going to 60# injectors as I have stock heads and cam.
I have seen others run around 5 or 6 psi with a racetronix and BAP with no problem, but they are staying in the 470 to 500 rwhp range, I think I'm going to be over that.
Let me know what you think.
Later,
Max
04-22-2008, 04:30 PM
#9
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What is meant by "Requires your sending unit for modification"?
Early C5 Vette Double Pumper - Twin High Output Fuel Pump Kit, Wiring Harness & Hobbs Switch - Fully Assembled & Tested
Requires your sending unit for modification
1997-early 2003 RX-C5-GSS340-DP-PKG
Thanks,
Max
04-22-2008, 08:04 PM
#10
I require your sender as I reuse the cover plate & the level sensor.
Kit retains the stock connections for ease of replacement & will work with stock lines. No tank modifications are required.
For more information, I can be reached at (724)322-8505
The best time to reach me for tech support is 7:00pm-11:00pm eastern time weekdays & 9:00am-11:00pm weekends.
Kit retains the stock connections for ease of replacement & will work with stock lines. No tank modifications are required.
For more information, I can be reached at (724)322-8505
The best time to reach me for tech support is 7:00pm-11:00pm eastern time weekdays & 9:00am-11:00pm weekends.
