Thread: duel fuel pumps?

Page 1 of 2 12 LastLast
Results 1 to 20 of 21
  1. #1 duel fuel pumps? 
    GT Level Member DaytonaGTP500's Avatar
    Join Date
    May 2012
    Location
    Iowa
    Posts
    188
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    hey, anyone know of any mock ups or anything anywhere for a duel 255 or 340 fuel pump setup for the gtp? I've been kinda looking around and not seeing anything so I turned here. hope to here something, thanks
    Reply With Quote  
     

  2. #2 Re: duel fuel pumps? 
    I live here. DirtDog's Avatar
    Join Date
    Jun 2012
    Location
    Jacksonville, North Carolina, United States
    Posts
    7,750
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    What kinda mods u got to need more than 1 pump...or even 1 Hugh performance pump
    http://www.grandprixforums.net/my-06-gp-gxp-72403.html
    OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>

    Reply With Quote  
     

  3. #3 Re: duel fuel pumps? 
    GXP Level Member GTPpower's Avatar
    Join Date
    May 2008
    Location
    Schuyler, NE
    Posts
    2,972
    Thanks (Received)
    8
    Likes (Received)
    23
    Dislikes (Received)
    0
    To get 2 in-tank pumps to work, you have to cut part of your bucket away, as the venturi won't keep up. And, plan on never letting it go below half a tank.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
    Reply With Quote  
     

  4. #4 Re: duel fuel pumps? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Honestly, you will never need dual pumps.

    Now what you can do, if you are truly set on added pressure, is do a 255 in tank and a boost a pump outside.
    Reply With Quote  
     

  5. #5 Re: duel fuel pumps? 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
    Join Date
    Jan 1970
    Location
    Maquoketa, Iowa
    Posts
    2,943
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by 99PGPGT View Post
    Honestly, you will never need dual pumps.

    Now what you can do, if you are truly set on added pressure, is do a 255 in tank and a boost a pump outside.

    Theres been a few dual pump setups, most copy from other GM platform dual pump setups. Downfall is when one pump fails.
    2001 GTP PT61 Turbo, E85, Stock Motor
    2011 Chevy Cruze MT6 1.4L Turbo
    Reply With Quote  
     

  6. #6 Re: duel fuel pumps? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by FoSHO99 View Post
    Theres been a few dual pump setups, most copy from other GM platform dual pump setups. Downfall is when one pump fails.
    Exactly, so why risk it on a platform that will never need two pumps?
    Reply With Quote  
     

  7. #7 Re: duel fuel pumps? 
    GXP Level Member GTPpower's Avatar
    Join Date
    May 2008
    Location
    Schuyler, NE
    Posts
    2,972
    Thanks (Received)
    8
    Likes (Received)
    23
    Dislikes (Received)
    0
    A platform that will never need dual pumps.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
    Reply With Quote  
     

  8. #8 Re: duel fuel pumps? 
    GT Level Member DaytonaGTP500's Avatar
    Join Date
    May 2012
    Location
    Iowa
    Posts
    188
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    A platform that will never need two pumps? Harsh lol stage 3 heads, l26 intake, st4 turbo cam, s259 72mm turbo, e85 on #80's, a few other goodies we wont mention, and a triple edge trans, was just at zzp two days ago and when I'm done looking for 580+ whp with a good dyno tune.. so yes two fuel pumps sounds right to me.................... but any ways do you know if the f-body setups are in any way close to the setup on ours? because if so I'm sure I can find a mock up from them to base it all off of. thanks guys
    Reply With Quote  
     

  9. #9 Re: duel fuel pumps? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by DaytonaGTP500 View Post
    A platform that will never need two pumps? Harsh lol stage 3 heads, l26 intake, st4 turbo cam, s259 72mm turbo, e85 on #80's, a few other goodies we wont mention, and a triple edge trans, was just at zzp two days ago and when I'm done looking for 580+ whp with a good dyno tune.. so yes two fuel pumps sounds right to me.................... but any ways do you know if the f-body setups are in any way close to the setup on ours? because if so I'm sure I can find a mock up from them to base it all off of. thanks guys
    I stand by what I said. Get a good 340 pump that will handle e85 up past 600 wheel and you're fine.
    Reply With Quote  
     

  10. #10 Re: duel fuel pumps? 
    GT Level Member DaytonaGTP500's Avatar
    Join Date
    May 2012
    Location
    Iowa
    Posts
    188
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Not tryin to argue but Steve at zzp told of a purple one with a really close setup to mine that was maxing out his duel 255 and #80 injectors at 595 whp.... So this is why Im continuously saying duels.... I understand and am totally with ya that a massive 340 sounds like it should more than work but I'm goin by wut zzp is tellin me they've seen on the dyno...Sooo idk
    Reply With Quote  
     

  11. #11 Re: duel fuel pumps? 
    GXP Level Member GTPpower's Avatar
    Join Date
    May 2008
    Location
    Schuyler, NE
    Posts
    2,972
    Thanks (Received)
    8
    Likes (Received)
    23
    Dislikes (Received)
    0
    In my opinion, the 340 is a huge pile of junk.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
    Reply With Quote  
     

  12. #12 Re: duel fuel pumps? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by GTPpower View Post
    In my opinion, the 340 is a huge pile of junk.
    Be more specific Paco.


    Anyways,

    If you are set on duAls.... Then I suggest making a trip to home depot for the parts you'll need to make the setup like I did.
    Reply With Quote  
     

  13. #13 Re: duel fuel pumps? 
    youtu.be/xhrBDcQq2DM FoSHO99's Avatar
    Join Date
    Jan 1970
    Location
    Maquoketa, Iowa
    Posts
    2,943
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by DaytonaGTP500 View Post
    Not tryin to argue but Steve at zzp told of a purple one with a really close setup to mine that was maxing out his duel 255 and #80 injectors at 595 whp.... So this is why Im continuously saying duels.... I understand and am totally with ya that a massive 340 sounds like it should more than work but I'm goin by wut zzp is tellin me they've seen on the dyno...Sooo idk
    That would be "purpletrtor" or Alex, and one of his pumps failed leaning the hell out of the car but probably didn't blow then because of the ethanol. If you can get a steel tank and sump it, that would probably be the best route and save some money in the end.
    2001 GTP PT61 Turbo, E85, Stock Motor
    2011 Chevy Cruze MT6 1.4L Turbo
    Reply With Quote  
     

  14. #14 Re: duel fuel pumps? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by FoSHO99 View Post
    That would be "purpletrtor" or Alex, and one of his pumps failed leaning the hell out of the car but probably didn't blow then because of the ethanol. If you can get a steel tank and sump it, that would probably be the best route and save some money in the end.
    This.

    Please, don't take everything zzp tries to sell you on, seriously. They are in fact, a business.

    Like fosho said, a good sump system will be the best route with an in line boost a pump.
    Last edited by MoarkatsINmuhtrailer; 02-13-2013 at 02:22 PM.
    Reply With Quote  
     

  15. #15 Re: duel fuel pumps? 
    GXP Level Member GTPpower's Avatar
    Join Date
    May 2008
    Location
    Schuyler, NE
    Posts
    2,972
    Thanks (Received)
    8
    Likes (Received)
    23
    Dislikes (Received)
    0
    Quote Originally Posted by 99PGPGT View Post
    Be more specific Paco.


    Anyways,

    If you are set on duAls.... Then I suggest making a trip to home depot for the parts you'll need to make the setup like I did.
    Lots of 340's have issues with reliability. Not only in our application as well.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
    Reply With Quote  
     

  16. #16 Re: duel fuel pumps? 
    GT Level Member DaytonaGTP500's Avatar
    Join Date
    May 2012
    Location
    Iowa
    Posts
    188
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by FoSHO99 View Post
    That would be "purpletrtor" or Alex, and one of his pumps failed leaning the hell out of the car but probably didn't blow then because of the ethanol. If you can get a steel tank and sump it, that would probably be the best route and save some money in the end.
    Yup that's the one he was talking bout. And steel tank and sump it like a race car pretty much? Also do you know was it just a faulty pump, bad setup, or? Because I was just thinking dual 255 pumps because I already have one that's working great but if its not big enough then ya..
    Reply With Quote  
     

  17. #17 Re: duel fuel pumps? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    most commonly from what i have seen is the second fails due to overheating, or an electrical problem.

    other times, people use a cobb switch but the switch always seems to fail.
    Reply With Quote  
     

  18. #18 Re: duel fuel pumps? 
    GT Level Member DaytonaGTP500's Avatar
    Join Date
    May 2012
    Location
    Iowa
    Posts
    188
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by FoSHO99 View Post
    That would be "purpletrtor" or Alex, and one of his pumps failed leaning the hell out of the car but probably didn't blow then because of the ethanol. If you can get a steel tank and sump it, that would probably be the best route and save some money in the end.
    Yup that's the one he was talking bout. And steel tank and sump it like a race car pretty much? Also do you know was it just a faulty pump, bad setup, or? Because I was just thinking dual 255 pumps because I already have one that's working great but if its not big enough then ya..
    Reply With Quote  
     

  19. #19 Re: duel fuel pumps? 
    GT Level Member DaytonaGTP500's Avatar
    Join Date
    May 2012
    Location
    Iowa
    Posts
    188
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Sry phone posted that twice.....so you would need two rewire kits then and just modify the bucket? Would you still be able to.use the.venting tube if I make it bigger with short Y's to the pump?
    Reply With Quote  
     

  20. #20 Re: duel fuel pumps? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    no get rid of the venturi system.

    you'll want to set one of these up.





    but yes, another split wiring harness for it with healthy gauged wire.
    Reply With Quote  
     

Page 1 of 2 12 LastLast

Similar Threads

  1. So many fuel pumps!
    By starscr33m in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 7
    Last Post: 01-11-2011, 01:30 PM
  2. 97 gp fuel pumps?
    By bigdog853 in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 13
    Last Post: 05-19-2010, 01:35 PM
  3. Fuel Pumps
    By JayAz in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 5
    Last Post: 01-18-2010, 03:25 AM
  4. Diff. in SE, GT, and GTP fuel pumps?
    By PCweber in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 4
    Last Post: 09-09-2009, 10:56 AM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •