|
Re: Fuel Pressure Dropping
[Re: moparguy1967]
#377131
07/16/09 12:30 PM
07/16/09 12:30 PM
|
Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
For some reason my fuel pressure will slowly drop from 7psi to 3psi. When I start the car up cold, everthing is fine. But let it run for 5 mins, and the pressure will drop off. My car is a 71 Valiant with a stock 360 magnum converted to a carb. Im running an Alum cell with #8 line to the jegs billet filter into a jegs billet pump. From the pump to the reg is #8 line, then split to #6 to the carb. Im not running a return line to the cell. The fuel line does run about 3 inch at the exhaust at one point. But I can put my hand on it when the car is running. So I dont this it is getting the line hot. Any ideas.
Thanks, Bill
Check the voltage at the pump when this is occurring
|
|
|
Re: Fuel Pressure Dropping
[Re: moparguy1967]
#377135
07/16/09 01:28 PM
07/16/09 01:28 PM
|
Joined: Aug 2008
Posts: 4,072 Mo.
racerx
master
|
master
Joined: Aug 2008
Posts: 4,072
Mo.
|
Quote:
For some reason my fuel pressure will slowly drop from 7psi to 3psi. When I start the car up cold, everthing is fine. But let it run for 5 mins, and the pressure will drop off. My car is a 71 Valiant with a stock 360 magnum converted to a carb. Im running an Alum cell with #8 line to the jegs billet filter into a jegs billet pump. From the pump to the reg is #8 line, then split to #6 to the carb. Im not running a return line to the cell. The fuel line does run about 3 inch at the exhaust at one point. But I can put my hand on it when the car is running. So I dont this it is getting the line hot. Any ideas.
Thanks, Bill
I have the same problem but on the nos side of the fuel system off the y block (I have not sprayed it yet)
|
|
|
Re: Fuel Pressure Dropping
[Re: racerx]
#377136
07/16/09 02:31 PM
07/16/09 02:31 PM
|
Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
|
Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
|
i have noticed when those liquid guages start acting weird, i will pry up on the rubber plunger on the guage and let some air in/out and it works fine again
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
|
|
|
|
|
|