dual kennedy pumps - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Performance Parts Discussion Discussion of Performance Parts For the 01-04 LB7 Duramax Trucks No Advertising

DuramaxForum.com is the premier Chevy and GMC Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 12-30-2012, 06:23 PM   eBay Motors  #1 (permalink)
Duramax Forum Supporter
Supporting Member
 
Recker's Avatar
 
Join Date: Nov 2011
Location: Shepherd, MI
Posts: 94
dual kennedy pumps

i have one of the kennedy pumps right now, thinking about adding two. Would it make to much pressure that it would start to surge at idle? Still kinda undecided if i need it or not because it should make around 150-160gph @ about 4 psi with just one pump. Could use anyone's input with first hand experience on these.
__________________
2003 Medium Green Metallic CC/SB LB7 Duramax
EFI Live With DSP5 | Autometer EGT, Fuel, Boost | LED Dash | MBRP 4" Straight Pipe Exhaust
LML Exhaust Manifold | Diamond Eye Downpipe | PPE Boost Valve | Fass 150 Titanium Pump
Tuff Country 4" Lift | Black And Machined 17" Eagle 197's On 285/70/17 AT3s | Custom Traction Bars
Rare Parts Tie Rods | Custom Steering Brace | Bills Custom AEM Intake | ProEFX Cowl Hood
High Idle Mod | High's/Low's/Fog's All On Mod | DDM 5000k HID's | Debadged | Tinted Lights | 5% Windows
Wishing For A Built Trans!
It's Safe To Say I'm A Little Addicted...
Recker is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 12-30-2012, 06:31 PM   eBay Motors  #2 (permalink)
Banned
 
Join Date: Nov 2008
Location: Arizona
Posts: 17,267
Pumps create flow, restriction creates pressure

I have dual Kennedy/TTS pumps and they make 8-10psi. Never surges.

Had a set on my LBZ for 4 years, and my LB7 is going on almost 2 years. Never once a problem, I love them.
Hondarider552 is offline   Reply With Quote Quick reply to this message
Old 12-31-2012, 07:56 AM   eBay Motors  #3 (permalink)
Duramax Forum Supporter
Supporting Member
 
Recker's Avatar
 
Join Date: Nov 2011
Location: Shepherd, MI
Posts: 94
alright that helps me out. wasnt sure what it would do. ill order one up!
__________________
2003 Medium Green Metallic CC/SB LB7 Duramax
EFI Live With DSP5 | Autometer EGT, Fuel, Boost | LED Dash | MBRP 4" Straight Pipe Exhaust
LML Exhaust Manifold | Diamond Eye Downpipe | PPE Boost Valve | Fass 150 Titanium Pump
Tuff Country 4" Lift | Black And Machined 17" Eagle 197's On 285/70/17 AT3s | Custom Traction Bars
Rare Parts Tie Rods | Custom Steering Brace | Bills Custom AEM Intake | ProEFX Cowl Hood
High Idle Mod | High's/Low's/Fog's All On Mod | DDM 5000k HID's | Debadged | Tinted Lights | 5% Windows
Wishing For A Built Trans!
It's Safe To Say I'm A Little Addicted...
Recker is offline   Reply With Quote Quick reply to this message
Old 12-31-2012, 11:53 AM   eBay Motors  #4 (permalink)
Junior Member
 
784x4chev's Avatar
 
Join Date: Dec 2009
Location: Colorado
Posts: 47
In my opinion one pump is enough unless you are planning on a big built motor. But you could always run two and add a regulator if needed. Two is also nice for redundancy in case one goes out.

Also the statement above is incorrect. The pump creates the flow and pressure. Restriction causes a loss of pressure.
__________________
2005 Silverado 3500 SRW
4" Exhaust / 5" Tip
Predator Programmer
LBZ Turbo Inlet
784x4chev is offline   Reply With Quote Quick reply to this message
Old 12-31-2012, 12:09 PM   eBay Motors  #5 (permalink)
Banned
 
Join Date: Nov 2008
Location: Arizona
Posts: 17,267
Actually, 2 pumps are fine for a stock engine. Ive ran them for almost 6 years.

No regulator needed as the TTS pumps are on-demand pumps.
Hondarider552 is offline   Reply With Quote Quick reply to this message
Old 12-31-2012, 12:31 PM   eBay Motors  #6 (permalink)
Duramax Forum Supporter
Supporting Member
 
Recker's Avatar
 
Join Date: Nov 2011
Location: Shepherd, MI
Posts: 94
well i was thinking about just adding another since its not a ridiculous amount of money and would help over come dual filters and keep the cp3 feed with pressure at all times. i dont have a fuel pressure gauge to let me know how its working which kinda sucks for me.
__________________
2003 Medium Green Metallic CC/SB LB7 Duramax
EFI Live With DSP5 | Autometer EGT, Fuel, Boost | LED Dash | MBRP 4" Straight Pipe Exhaust
LML Exhaust Manifold | Diamond Eye Downpipe | PPE Boost Valve | Fass 150 Titanium Pump
Tuff Country 4" Lift | Black And Machined 17" Eagle 197's On 285/70/17 AT3s | Custom Traction Bars
Rare Parts Tie Rods | Custom Steering Brace | Bills Custom AEM Intake | ProEFX Cowl Hood
High Idle Mod | High's/Low's/Fog's All On Mod | DDM 5000k HID's | Debadged | Tinted Lights | 5% Windows
Wishing For A Built Trans!
It's Safe To Say I'm A Little Addicted...
Recker is offline   Reply With Quote Quick reply to this message
Old 12-31-2012, 12:32 PM   eBay Motors  #7 (permalink)
DuramaxForum Enthusiast
 
Thebiggids's Avatar
 
Join Date: Jun 2011
Location: Bellingham, Wa
Posts: 4,344
Quote:
Originally Posted by 784x4chev View Post
Also the statement above is incorrect. The pump creates the flow and pressure. Restriction causes a loss of pressure.
Explain yourself o knowledgeable one!

If you have your pump running, and pinch the line...is the pressure between the pump and pinch point going to rise or lower?
__________________
Gideon
01 LB7 EC/SB Ally 4x4 shop ornament
DD: 1990 4runner completely stock 4x4 3.slow


Big Thanks To Adrenaline Truck Performance, Alligator Diesel PerformanceSocal Diesel and Lincoln Diesel Specialties
Thebiggids is offline   Reply With Quote Quick reply to this message
Old 12-31-2012, 12:33 PM   eBay Motors  #8 (permalink)
Banned
 
Join Date: Nov 2008
Location: Arizona
Posts: 17,267
Glowshift has a electric fuel pressure gauge that is like 60 bucks. Can run the sending unit to the bleeder screw on the fuel filter housing and put the gauge in your pod.
Hondarider552 is offline   Reply With Quote Quick reply to this message
Old 12-31-2012, 12:35 PM   eBay Motors  #9 (permalink)
Banned
 
Join Date: Nov 2008
Location: Arizona
Posts: 17,267
Quote:
Originally Posted by 784x4chev View Post

Also the statement above is incorrect. The pump creates the flow and pressure. Restriction causes a loss of pressure.


Like I said, pumps create FLOW. RESTRICTION creates PRESSURE.



Ill put it into Laymans terms...


Turn on your garden hose at wide open, now squeeze the hose to RESTRICT the FLOW. Now you get PRESSURE.



Hondarider552 is offline   Reply With Quote Quick reply to this message
Old 12-31-2012, 12:36 PM   eBay Motors  #10 (permalink)
DuramaxForum Enthusiast
 
TakeEm's Avatar
 
Join Date: May 2011
Location: Fort Collins CO
Posts: 3,655
Pumps create flow, a restriction creates pressure!


Sent from my iPhone using AutoGuide.com Free App
__________________
Caleb
2007 LBZ CCSB Wehrli S475/stock-Suncoast by Dmitri
EFI Live: 620HP 1220TQ
5" DE, rerouted, debadged, demolded, air dog, stock fuel

Big thanks, Duramaxtuner.com & Kory Willis @ PPEI
TakeEm is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply


Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Chevy and GMC Duramax Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 05:16 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.

Search Engine Friendly URLs by vBSEO 3.3.2