Dual walbro fuel pumps?
#18
It is possible that the dampner tweak mentioned earlier might deliver the fuel needed w/o a pump change. But it would be PITA. At least his Walbro has been reliable, but it would be better off with your 10g dedicated wiring. A Denso is going to rock at 13.5v and well with its capability for those power needs.
Last edited by SCoupe; 06-05-08 at 12:30 PM.
#19
Check Titan for the TT pumps.
Sounds like you need the dual pump (insurance) set up + rail + SS fuel lines + SX Performance EFI regulator + fuel filter + Fuel pressure gauge.
A complete fuel set up.
Get it done and forget about it.
I would not boost beyond stock system on one pump.
One pump set up is OK until pump goes out and pop your engine.
* Higher voltage would reduce the pump life.
Sounds like you need the dual pump (insurance) set up + rail + SS fuel lines + SX Performance EFI regulator + fuel filter + Fuel pressure gauge.
A complete fuel set up.
Get it done and forget about it.
I would not boost beyond stock system on one pump.
One pump set up is OK until pump goes out and pop your engine.
* Higher voltage would reduce the pump life.
Last edited by clevercat; 06-05-08 at 05:47 PM.
#20
Eric
Also MVP has the Denso pumps for sale @ $247.
#21
#22
You dont need a new hanger... Just attatch the pump to the OEM hanger... I don;t know how you will hook the hose to the stock rail. You can either weld a AN fitting or run it through the stock line with a Y. Use your stock wiring as the turn on wire into a relay and run 8-10 gauge power wire from the battery, It should only cost you about $125 including the new walbro... I did this with my 700 RWHP supra... Here's some pics... PM if you have any questions..
#24
You dont need a new hanger... Just attatch the pump to the OEM hanger... I don;t know how you will hook the hose to the stock rail. You can either weld a AN fitting or run it through the stock line with a Y. Use your stock wiring as the turn on wire into a relay and run 8-10 gauge power wire from the battery, It should only cost you about $125 including the new walbro... I did this with my 700 RWHP supra... Here's some pics... PM if you have any questions..
Eric
#25
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
#26
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
Eric
#28
There are a few pics... fits like a glove- no modding/cutting the little bucket thing either. I'm going to attempt to tune on Thursday night at higher boost, hopefully the adjustable FPR, relay, and 2nd walbro fuel pump will allow me to run the boost I want (26+psi on C16 race gas).
Allen