Walbro Pump - Fuel Cannister Venturi Suction Issue - Page 2
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Thread: Walbro Pump - Fuel Cannister Venturi Suction Issue

  1. #11
    Senior Member 14RSINLI's Avatar
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    Here is a pic of my actual pump
    Attached Images Attached Images  
    2014 RS MT 270 whp, 325wtq @ 26psi
    13 Custom Headlights w/ Demon Eyes - 2JR Uprev Tune, Mamba TD04-19T TURBO, Walbro 340lph fuel pump, 2JR downpipe, Injen Midpipe, 2JR Catback, Injen SRI, Injen upper hard pipes, Urethane upper/lower torque mounts, RS-R Springs, Mishimoto IC, 2JR lightweight pulley, GFB DV, Impul rain guards, DRL foglight stalk swap, weather-tech mats, catch cans, boost gauge, Impul style cf double-wing, FWD Sway Bar, Strut Bar
    FUTURE MODS: Custom Gators, MBRO Tails

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  3. #12
    Senior Member mi_avant's Avatar
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    Quote Originally Posted by 14RSINLI View Post
    Thank you sir. This is the way 2J is pumping (no pun intended) them out now, so it seems I was the guinea pig. The actual pump that they use is aeromotove, branded 2J.... see attached pic.

    Quote Originally Posted by turbo noob View Post
    Glad she back in action hope to see it at the next meet.

    Aeromotive doesnÂ’t make a 255lph but they do make a 340lph.

    Aeromotives are inferior to walbro as their 340lph flows about what a walbro 255lph does lol.
    2015 Sapphire Black NISMO RS | OEM HID's | Akebono BBK | Injen SRI | 2JR V2 FMIC | 2JR Tuned| 2JR Pulley | Saikou Michi DOCC | Injen test-pipe and IC piping | TurboSmart BPV | Doug Thorley Axle Back| PowerFlex Torque Mount inserts | Full LED's | Konig Dekagrams 5x114.3 18x9.5 +35 | Omega Remote Start |

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  4. #13
    Senior Member Storm Trooper's Avatar
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    Here is a good read for you guys on fuel pumps.

    https://www.realstreetperformance.co...t-performance/
    2012 Juke SV AWD - Sold 2015
    2015 Juke Nismo RS 6mt - Sold 2018
    2006 Evo MR SE - 400whp on E85
    2004 Saturn Vue - Beater

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  6. #14
    Senior Member turbo noob's Avatar
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    That was some good reading!
    injen short ram intake, injen intercooler pipes, turbo smart compact bov, stillen strut bar, full obx exhaust include second cat delete, 2j pulley, 2j mail order tune with uprev, mishimoto front mount with custom pipes and brackets, 2j shift knob, nismo pedals, rock blokz mud flaps, greddy profec electronic boost controller, sti battery tie down.

  7. #15
    Moderator Macgyver's Avatar
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    Inlet hole is the hole at the base of this pump in the pic. He reemed it out where it sits in the white plastic cage. Made it larger in the video.
    2014 Silver 6spd RS 285whp 255wtq 21PSI
    Tint SunStrip. Cargo Cvr. DRL Mod. HID Hdlites, Ultratech Race Brace Pkg, Koenig whls&20mm spcrs
    LED:Gator, Backup, Dome, License, SideMrk, Cstm Hatch. Pinstriping. Weathertek's,
    Lited Scufs, Accent Liting, Turbonoob mounts. Uprev Tune. Boost gage, 2J DP & Pulley, Mamba Turbo, RHW FMIC
    Injen IC pipes,CAI, Midpipe,Stillen Exhst, TS BOV & Wastegate, IRZ Stut Brce, Maxbore TBody

  8. #16
    Senior Member 14RSINLI's Avatar
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    I have the aeromotive 340lph. That is what 2J uses and name brands them 2J. Thanks for the heads up on the poor quality 😞


    Quote Originally Posted by mi_avant View Post
    Quote Originally Posted by 14RSINLI View Post
    Thank you sir. This is the way 2J is pumping (no pun intended) them out now, so it seems I was the guinea pig. The actual pump that they use is aeromotove, branded 2J.... see attached pic.

    Quote Originally Posted by turbo noob View Post
    Glad she back in action hope to see it at the next meet.

    Aeromotive doesnÂ’t make a 255lph but they do make a 340lph.

    Aeromotives are inferior to walbro as their 340lph flows about what a walbro 255lph does lol.
    2014 RS MT 270 whp, 325wtq @ 26psi
    13 Custom Headlights w/ Demon Eyes - 2JR Uprev Tune, Mamba TD04-19T TURBO, Walbro 340lph fuel pump, 2JR downpipe, Injen Midpipe, 2JR Catback, Injen SRI, Injen upper hard pipes, Urethane upper/lower torque mounts, RS-R Springs, Mishimoto IC, 2JR lightweight pulley, GFB DV, Impul rain guards, DRL foglight stalk swap, weather-tech mats, catch cans, boost gauge, Impul style cf double-wing, FWD Sway Bar, Strut Bar
    FUTURE MODS: Custom Gators, MBRO Tails

  9. #17
    Senior Member 14RSINLI's Avatar
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    I left the inlet as is. I believe with the holes in canister the inlet can stay hydrated all the time. The car definitely idles so much smoother and it accelerates smoother. This was definitely causing problems as the pump was sucking the canister dry!

    Quote Originally Posted by Macgyver View Post
    Inlet hole is the hole at the base of this pump in the pic. He reemed it out where it sits in the white plastic cage. Made it larger in the video.
    2014 RS MT 270 whp, 325wtq @ 26psi
    13 Custom Headlights w/ Demon Eyes - 2JR Uprev Tune, Mamba TD04-19T TURBO, Walbro 340lph fuel pump, 2JR downpipe, Injen Midpipe, 2JR Catback, Injen SRI, Injen upper hard pipes, Urethane upper/lower torque mounts, RS-R Springs, Mishimoto IC, 2JR lightweight pulley, GFB DV, Impul rain guards, DRL foglight stalk swap, weather-tech mats, catch cans, boost gauge, Impul style cf double-wing, FWD Sway Bar, Strut Bar
    FUTURE MODS: Custom Gators, MBRO Tails

  10. #18
    Senior Member 14RSINLI's Avatar
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    Thank you. This article does prove my pump is way oversized. But 2J said the car is tuned with this pump flow characteristics. So if I change pump I assume I would need to retune. I am happy with it now so case closed lol


    Quote Originally Posted by Storm Trooper View Post
    Here is a good read for you guys on fuel pumps.

    https://www.realstreetperformance.co...t-performance/
    2014 RS MT 270 whp, 325wtq @ 26psi
    13 Custom Headlights w/ Demon Eyes - 2JR Uprev Tune, Mamba TD04-19T TURBO, Walbro 340lph fuel pump, 2JR downpipe, Injen Midpipe, 2JR Catback, Injen SRI, Injen upper hard pipes, Urethane upper/lower torque mounts, RS-R Springs, Mishimoto IC, 2JR lightweight pulley, GFB DV, Impul rain guards, DRL foglight stalk swap, weather-tech mats, catch cans, boost gauge, Impul style cf double-wing, FWD Sway Bar, Strut Bar
    FUTURE MODS: Custom Gators, MBRO Tails

  11. #19
    Moderator Macgyver's Avatar
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    Quote Originally Posted by 14RSINLI View Post
    Thank you. This article does prove my pump is way oversized. But 2J said the car is tuned with this pump flow characteristics. So if I change pump I assume I would need to retune. I am happy with it now so case closed lol
    I really hope this solves all the issues you were having.

    Now catch up to White Nismo on the track !!!
    2014 Silver 6spd RS 285whp 255wtq 21PSI
    Tint SunStrip. Cargo Cvr. DRL Mod. HID Hdlites, Ultratech Race Brace Pkg, Koenig whls&20mm spcrs
    LED:Gator, Backup, Dome, License, SideMrk, Cstm Hatch. Pinstriping. Weathertek's,
    Lited Scufs, Accent Liting, Turbonoob mounts. Uprev Tune. Boost gage, 2J DP & Pulley, Mamba Turbo, RHW FMIC
    Injen IC pipes,CAI, Midpipe,Stillen Exhst, TS BOV & Wastegate, IRZ Stut Brce, Maxbore TBody

  12. #20
    Moderator Macgyver's Avatar
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    Apr 2012
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    Quote Originally Posted by mi_avant View Post
    Aeromotive doesnÂ’t make a 255lph but they do make a 340lph.

    Aeromotives are inferior to walbro as their 340lph flows about what a walbro 255lph does lol.
    Not that the Juke needs anything as the OEM fuel system has proven itself stable up to 330whp with headroom for sure.

    I wonder what the OEM LPFP does with these tests.

    On the question of whether this is a worthwhile mod or not ?

    I guess not. How can it really do what 2J says it does. There is a HPFP that is in the way of the LPFP pump. How is an extra 10-20psi going to "Push" the HPFP and help it make more fuel rail pressure. Unless 2J is jacking up the LPFP pump pressure via voltage to support the supposed "Lean" LOW RPM condition because the cam is not spinning fast enough to get enough fuel pressure from the HPFP to the Injectors.

    All of the above is just from me doing some research.

    LPFP 40psi to 70psi. What are its limits?

    HPFP : 300psi to 1800 psi ? I could not get a firm number from the manual. I got High pressure warning numbers and low pressure warning numbers.
    2014 Silver 6spd RS 285whp 255wtq 21PSI
    Tint SunStrip. Cargo Cvr. DRL Mod. HID Hdlites, Ultratech Race Brace Pkg, Koenig whls&20mm spcrs
    LED:Gator, Backup, Dome, License, SideMrk, Cstm Hatch. Pinstriping. Weathertek's,
    Lited Scufs, Accent Liting, Turbonoob mounts. Uprev Tune. Boost gage, 2J DP & Pulley, Mamba Turbo, RHW FMIC
    Injen IC pipes,CAI, Midpipe,Stillen Exhst, TS BOV & Wastegate, IRZ Stut Brce, Maxbore TBody

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