fuel pressure standalone fuel system
Thread Starter
Staging Lane
Joined: Oct 2006
Posts: 76
Likes: 0
From: Graz, Austria
fuel pressure standalone fuel system Guys,
we have build a complete stand alone fuel system into the passenger side Corvette tank to have ample of reserve for bigger shots. It is a high pressure system whereas jets are rated for "stock" LS1 fuel pressure.
NOW, what is the "stock" fuel pressure anyway on an LS1 as I believe the 55psi may be too much.
First tests have shown that we seem to be rich as we seem to have little power with a 150 shot in 3rd gear and heavy pulsing until the FJO goes to 100%. Could that come from a FPSS which is to closely adjusted and pressure changes when pulsing the solenoids cause the FPSS to switch off/on/off until steady?
Since we run an aggressive timing on NA tune with 34 degrees a timing tuner takes out 9 degrees to get us close to 24 degrees when on nitrous. When we step up to a 225+ shot (bottom end is build) should we stay at 24 or go down further?
we have build a complete stand alone fuel system into the passenger side Corvette tank to have ample of reserve for bigger shots. It is a high pressure system whereas jets are rated for "stock" LS1 fuel pressure.
NOW, what is the "stock" fuel pressure anyway on an LS1 as I believe the 55psi may be too much.
First tests have shown that we seem to be rich as we seem to have little power with a 150 shot in 3rd gear and heavy pulsing until the FJO goes to 100%. Could that come from a FPSS which is to closely adjusted and pressure changes when pulsing the solenoids cause the FPSS to switch off/on/off until steady?
Since we run an aggressive timing on NA tune with 34 degrees a timing tuner takes out 9 degrees to get us close to 24 degrees when on nitrous. When we step up to a 225+ shot (bottom end is build) should we stay at 24 or go down further?
Launching!
Joined: Dec 2002
Posts: 291
Likes: 0
From: Vegas
Originally Posted by coolchevy
Guys,
we have build a complete stand alone fuel system into the passenger side Corvette tank to have ample of reserve for bigger shots. It is a high pressure system whereas jets are rated for "stock" LS1 fuel pressure.
NOW, what is the "stock" fuel pressure anyway on an LS1 as I believe the 55psi may be too much.
First tests have shown that we seem to be rich as we seem to have little power with a 150 shot in 3rd gear and heavy pulsing until the FJO goes to 100%. Could that come from a FPSS which is to closely adjusted and pressure changes when pulsing the solenoids cause the FPSS to switch off/on/off until steady?
Since we run an aggressive timing on NA tune with 34 degrees a timing tuner takes out 9 degrees to get us close to 24 degrees when on nitrous. When we step up to a 225+ shot (bottom end is build) should we stay at 24 or go down further?
we have build a complete stand alone fuel system into the passenger side Corvette tank to have ample of reserve for bigger shots. It is a high pressure system whereas jets are rated for "stock" LS1 fuel pressure.
NOW, what is the "stock" fuel pressure anyway on an LS1 as I believe the 55psi may be too much.
First tests have shown that we seem to be rich as we seem to have little power with a 150 shot in 3rd gear and heavy pulsing until the FJO goes to 100%. Could that come from a FPSS which is to closely adjusted and pressure changes when pulsing the solenoids cause the FPSS to switch off/on/off until steady?
Since we run an aggressive timing on NA tune with 34 degrees a timing tuner takes out 9 degrees to get us close to 24 degrees when on nitrous. When we step up to a 225+ shot (bottom end is build) should we stay at 24 or go down further?
From Ray at NO
1) verify that the bottle is closed and there is no nitrous in the feed line
2) remove the fuel line from the nozzle
3) activate the kit
4) using a can to catch the fuel flowing from the fuel line, slowly tighten the screw on the end of the FPSS until the fuel starts to fluctuate.
5) Back the screw off 3/4 of a turn
6) hook everything back up and you are done
