Dual walbro fuel pumps?
06-26-08, 05:19 PM
#31
how are you guys providing the electirical feed for the second pump?
I know i can run a relay off the trigger for the 12V's from the Fuel Pump ECU to have it kick on only when there is a load, and that i feed straight from the battery, but I can't figure out how to get past the lid to the tank. I have ports for the fuel coming out there, but the passes for the positive and negative and coated. i'm sceptical about removing the coating with how much crap I have in the back seat, and how i am stripped in the back.
I know i can run a relay off the trigger for the 12V's from the Fuel Pump ECU to have it kick on only when there is a load, and that i feed straight from the battery, but I can't figure out how to get past the lid to the tank. I have ports for the fuel coming out there, but the passes for the positive and negative and coated. i'm sceptical about removing the coating with how much crap I have in the back seat, and how i am stripped in the back.
06-26-08, 06:11 PM
#32
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how are you guys providing the electirical feed for the second pump?
I know i can run a relay off the trigger for the 12V's from the Fuel Pump ECU to have it kick on only when there is a load, and that i feed straight from the battery, but I can't figure out how to get past the lid to the tank. I have ports for the fuel coming out there, but the passes for the positive and negative and coated. i'm sceptical about removing the coating with how much crap I have in the back seat, and how i am stripped in the back.
I know i can run a relay off the trigger for the 12V's from the Fuel Pump ECU to have it kick on only when there is a load, and that i feed straight from the battery, but I can't figure out how to get past the lid to the tank. I have ports for the fuel coming out there, but the passes for the positive and negative and coated. i'm sceptical about removing the coating with how much crap I have in the back seat, and how i am stripped in the back.
The second 12V lead in installed through the pass through. The ground point is at the strap itself. The strap is a wide honkin' piece of aluminum so it'll conduct just fine. The strap is affixed to the points at the tank.
Thanks!
Eric
06-26-08, 07:53 PM
#33
i think i get what you are saying.
what i am worried about is the pass through for two main reasons:
Aren't they generally rated by amperage? if so, can the oem pass through handle the current drawn by two walbros?
How do i get the new wire attached to the pass through that is covered in the substance to separate it from the ground?
what i am worried about is the pass through for two main reasons:
Aren't they generally rated by amperage? if so, can the oem pass through handle the current drawn by two walbros?
How do i get the new wire attached to the pass through that is covered in the substance to separate it from the ground?
06-26-08, 09:21 PM
#34
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i think i get what you are saying.
what i am worried about is the pass through for two main reasons:
Aren't they generally rated by amperage? if so, can the oem pass through handle the current drawn by two walbros?
How do i get the new wire attached to the pass through that is covered in the substance to separate it from the ground?
what i am worried about is the pass through for two main reasons:
Aren't they generally rated by amperage? if so, can the oem pass through handle the current drawn by two walbros?
How do i get the new wire attached to the pass through that is covered in the substance to separate it from the ground?
Thanks!!
Eric
07-15-08, 06:17 PM
#41
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Did you use the MVP hangar? How did you install it?
Just a suggestion but I rigged my second walbro to a pressure switch. The second pump only comes on at anything over 10psi. NO need to have them both going all the time
Just a suggestion but I rigged my second walbro to a pressure switch. The second pump only comes on at anything over 10psi. NO need to have them both going all the time
Why would I run into the same problem with 2 walbro fuel pumps? Explain please...
I installed the 2nd walbro fuel pump last night- it fits like a glove
It fits perfectly in the "bucket" looking thing in the fuel tank. I did run a 4 gauge wire from the battery to a relay, and wired the relay in order to get max voltage.
I also did this: https://www.clublexus.com/forums/sho...ghlight=walbro
I haven't tuned it at high boost yet, but the car does run a bit richer. My fuel pressure went up from ~40psi to about 55psi, so I had to turn it back down. These little suckers whine... sounds kinda cool IMO haha.
I'll post up some pics. I didn't use a new hanger- I just clamped the fuel pump to the first walbro, and replaced the hard line thats normally connected to the hanger with a 5/16" fuel line and T'd it off. I have some pics that I'll upload to this thread once I find my camera.
I'll probably tune it at high boost sometime next week.. hopefully I don't run outta fuel. Whatta u guys think of the setup now? I have 1 relay for both pumps, and I also did that other 12v mod (link above).
Allen
I installed the 2nd walbro fuel pump last night- it fits like a glove
It fits perfectly in the "bucket" looking thing in the fuel tank. I did run a 4 gauge wire from the battery to a relay, and wired the relay in order to get max voltage.
I also did this: https://www.clublexus.com/forums/sho...ghlight=walbro
I haven't tuned it at high boost yet, but the car does run a bit richer. My fuel pressure went up from ~40psi to about 55psi, so I had to turn it back down. These little suckers whine... sounds kinda cool IMO haha.
I'll post up some pics. I didn't use a new hanger- I just clamped the fuel pump to the first walbro, and replaced the hard line thats normally connected to the hanger with a 5/16" fuel line and T'd it off. I have some pics that I'll upload to this thread once I find my camera.
I'll probably tune it at high boost sometime next week.. hopefully I don't run outta fuel. Whatta u guys think of the setup now? I have 1 relay for both pumps, and I also did that other 12v mod (link above).
Allen
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