3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!

how much pressure @ the rail

Thread Tools
 
Search this Thread
 
Old 01-28-2008, 11:35 AM
  #1  
O.T
Registered User
Thread Starter
 
O.T's Avatar
 
Join Date: Jan 2007
Location: Home of the Beaver
Posts: 685
Likes: 0
Received 0 Likes on 0 Posts
how much pressure @ the rail

running the Dr P 2018 pressure box--110hp progressive. Pressure comes on with minimal boost.
My rail gauge maxes out at 25-26k, this in relation to the sensor max parameters.
Without the pressure box the rail is 23-25k depending on load.
Is there a aftermarket pressure sensor to read higher than the factory sensor?

I cannot call Dr P from Canada. Does anyone know what the actual max pressure would be?

onetun
Old 01-28-2008, 12:10 PM
  #2  
Registered User
 
53 willys's Avatar
 
Join Date: Mar 2005
Location: Utah
Posts: 6,259
Likes: 0
Received 1 Like on 1 Post
I hit 27,700...with my X2 reading off the stock sensor......give or take 100psi..so I know it will go at least that high.
Old 01-28-2008, 03:42 PM
  #3  
Banned
 
bluechrome's Avatar
 
Join Date: Jun 2007
Location: Auburn Ohio
Posts: 1,470
Likes: 0
Received 0 Likes on 0 Posts
I thought the pressure relief vavle was supposed to go off at 27,500
Old 01-28-2008, 03:43 PM
  #4  
Registered User
 
06CTDforAU's Avatar
 
Join Date: Feb 2007
Posts: 1,126
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by bluechrome
I thought the pressure relief vavle was supposed to go off at 27,500
Me too. I guess it doesn't though??
Old 01-28-2008, 04:28 PM
  #5  
O.T
Registered User
Thread Starter
 
O.T's Avatar
 
Join Date: Jan 2007
Location: Home of the Beaver
Posts: 685
Likes: 0
Received 0 Likes on 0 Posts
Only if you have one!

My rail is capped
Old 01-28-2008, 05:31 PM
  #6  
Registered User
 
omaharam's Avatar
 
Join Date: Jun 2005
Location: Nebraska
Posts: 2,452
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by onetun
running the Dr P 2018 pressure box--110hp progressive. Pressure comes on with minimal boost.
My rail gauge maxes out at 25-26k, this in relation to the sensor max parameters.
Without the pressure box the rail is 23-25k depending on load.
Is there a aftermarket pressure sensor to read higher than the factory sensor?

I cannot call Dr P from Canada. Does anyone know what the actual max pressure would be?

onetun
John at Floor It had a custom one made that manually reads the actual pressure up to 35k. He paid like $1500 to have it make though.
Old 01-28-2008, 07:17 PM
  #7  
Registered User
 
CG98x's Avatar
 
Join Date: Feb 2006
Location: Rock Springs WY
Posts: 344
Likes: 0
Received 0 Likes on 0 Posts
I think qzilla said the stocker could read 28600, I've never seen that but I have seen 27500.
Old 01-28-2008, 08:00 PM
  #8  
Registered User
 
mike moore's Avatar
 
Join Date: Apr 2007
Location: nyc area
Posts: 78
Likes: 0
Received 0 Likes on 0 Posts
how much pressure @ the rail

according to the shop manual an 07 says around 23,200 stock.
Old 01-28-2008, 09:08 PM
  #9  
Banned
 
bluechrome's Avatar
 
Join Date: Jun 2007
Location: Auburn Ohio
Posts: 1,470
Likes: 0
Received 0 Likes on 0 Posts
I've only been to 27,000
Old 01-28-2008, 09:21 PM
  #10  
Registered User
 
bigjohn04's Avatar
 
Join Date: Feb 2007
Location: Uhland / San Angelo, Texas
Posts: 245
Likes: 0
Received 0 Likes on 0 Posts
I had the Dr. P 2018 box and Quad RP gauge, it would max out around 26750 at WOT.
Old 01-28-2008, 09:48 PM
  #11  
Registered User
 
Megaramasaur's Avatar
 
Join Date: Oct 2006
Location: San Antonio
Posts: 709
Likes: 0
Received 0 Likes on 0 Posts
Anyone have the write up to cap the relief valve?
Old 01-28-2008, 11:13 PM
  #12  
Registered User
 
53 willys's Avatar
 
Join Date: Mar 2005
Location: Utah
Posts: 6,259
Likes: 0
Received 1 Like on 1 Post
Originally Posted by bluechrome
I thought the pressure relief vavle was supposed to go off at 27,500
apparently not..... my commander recored over 27,500 multiply times......
Old 01-29-2008, 12:46 AM
  #13  
O.T
Registered User
Thread Starter
 
O.T's Avatar
 
Join Date: Jan 2007
Location: Home of the Beaver
Posts: 685
Likes: 0
Received 0 Likes on 0 Posts
OK guys thanks....however my point is still in question.

I run dual pumps, with a pressure box I can bury the needle on the rail gauge with zero fluctuation. Perhaps my pressure is 35k who knows.
Since the rail sensor reads max @ 27500-28000 I will never know.

Anyone know how much pressure Dr P adds....3k-5k-6k-7k-15k

onetun
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LooseBoltsRob
3rd Gen High Performance and Accessories (5.9L Only)
33
02-07-2010 12:43 PM
incognyto
3rd Gen Engine and Drivetrain -> 2003-2007
12
11-22-2008 01:27 PM
SMOKIN-U
3rd Gen High Performance and Accessories (5.9L Only)
13
09-09-2008 06:58 PM
5.9Excursion
3rd Gen High Performance and Accessories (5.9L Only)
3
03-13-2008 10:56 AM
DMS1707
3rd Gen High Performance and Accessories (5.9L Only)
12
04-09-2007 10:31 PM



Quick Reply: how much pressure @ the rail



All times are GMT -5. The time now is 12:44 AM.