Common Rail Injection ? - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by maxxis_mudder, this thread has received 52 replies and been viewed 5337 times.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 53 (permalink) Old 01-09-2006, 06:21 PM Thread Starter
Senior Member
 
Join Date: Sep 2005
Location: Ohio
Posts: 925
Points: 34,353
Thanks: 3
Thanked 5 Times in 3 Posts
Common Rail Injection ?

If, infact the new 6.4 will be a common rail, what do you members see as the advantage to the HEUI system of the past?
maxxis_mudder is offline  
Sponsored Links
Advertisement
 
post #2 of 53 (permalink) Old 01-09-2006, 06:34 PM
 
Join Date: Jun 2005
Posts: 208
Points: 1,260
Thanks: 0
Thanked 0 Times in 0 Posts
Well, the Dmax(Common-Rail) Makes 500HP with stock injection system and turbo...

I would think that the new 6.4 will have enought air to support that stock.
Slick is offline  
post #3 of 53 (permalink) Old 01-09-2006, 08:28 PM
'Ol Builder guy
 
Duke's Avatar
 
Join Date: Dec 2008
Posts: 7,051
Points: 123,781
Thanks: 340
Thanked 99 Times in 73 Posts
Quote:
Originally Posted by maxxis_mudder
If, infact the new 6.4 will be a common rail, what do you members see as the advantage to the HUEI system of the past?
Your question might be better put like this:

"Is there any disadvantage to the common rail fuel system in the new 6.4L compared to the HEUI system"

You know, I think common rail has HEUI beat 6 ways to Sunday. Maybe the only way HEUI is better is that there's no lift pump failures. Give the new CR system a high quality, well placed pump and there's really no advantage to HEUI. :blah:

$5,000 to get both fuel & oil to match C/R fuel is eliminated, too.

To me, it's a win-win-win with CR.
Duke is offline  
post #4 of 53 (permalink) Old 01-09-2006, 11:25 PM
 
Join Date: Dec 2008
Posts: 125
Points: 16,199
Thanks: 0
Thanked 0 Times in 0 Posts
Dmax doesnt have a lift pump... it just relies on suction from the low pressure side of the CP3.
duratothemax is offline  
post #5 of 53 (permalink) Old 01-10-2006, 12:02 AM
'Ol Builder guy
 
Duke's Avatar
 
Join Date: Dec 2008
Posts: 7,051
Points: 123,781
Thanks: 340
Thanked 99 Times in 73 Posts
I didn't say it did. I just meant that if the 6.4 does have one, it's a potential achilles heel.
Duke is offline  
post #6 of 53 (permalink) Old 01-10-2006, 01:01 AM
Senior Member
 
hoot's Avatar
 
Join Date: Jun 2005
Posts: 281
Points: 8,419
Thanks: 0
Thanked 1 Time in 1 Post
It sucks to think they design a high tech piece of equipment (HP Pump) and not design a reliable supply system. At least one that if it should fail, fuel will still flow without damaging the pump but a code would be set.

GM has gotten away without a lift pump because they use large supply lines and a well designed sealed supply line to the tank. Any airleaks cause hard or no-starts.

The Bosch CP3 has it's own integral geared lift pump so it's possible for any of the manufacturers to design a no-external lift pump system if they use the CP3.

I haven't figure out why Dodge decided to keep a lift pump when they went common rail. It's possible the location of the tanks and the plumbing restrictions are the reason.

The PLane Will Fly
04 2500 DODGE 4x4, QC SB SLT, POWER WAGON and THE MIGHTY CUMMINS 305/555, Goerend 48, Triple Disk TC, BDFlex Flexplate, F1stix, HT62/71/13 SS Turbo , Arp Head Studs, TST PowerMaxCR, Smarty, Injen/Amsoil air intake, FASS 150, Di Pricol Boost,TransTemp and Fuel Pressure, H2 Hummer Wheels & Toyo Open Country M/T's, Kore Leveling, Kore Stabilizer Drop 5" RIP Rook 6" SS TIP, Mag-Hytec Rear and Trans, Defiant Dual Steering Stab Sys, Thuren Trac Bar, Carli Light Bar, Hella's, Bushwacker Fender Flares, AirChime K3LA Locomotive Horn, Western 8.6MPV V-Plow
Dynoed 5-17-08 541hp/1039tq

2004 DODGE PICS AND INFO

2001 Duramax PICS AND INFO
hoot is offline  
post #7 of 53 (permalink) Old 01-10-2006, 01:20 AM
 
Join Date: Jun 2005
Posts: 2,838
Points: 32,149
Thanks: 0
Thanked 0 Times in 0 Posts
well one advantage of the CR is that wont suck like the HEUI system:
DBogo is offline  
post #8 of 53 (permalink) Old 01-10-2006, 12:41 PM
 
Join Date: Jun 2005
Posts: 208
Points: 1,260
Thanks: 0
Thanked 0 Times in 0 Posts
As many know there are advantages to running a lift pump in higher HP situations with the Dmax.

If you are concerned about perfomance, chances are you will be adding a lift-pump, or replacing the stock one anyway. I would say the lift pump is a moot point, as there are options out there that are far superior to the pumps that have been proned to fail in the past. They are flow-through as well, so if they did crap the bed you could still get home.
Slick is offline  
post #9 of 53 (permalink) Old 01-10-2006, 01:41 PM Thread Starter
Senior Member
Threadstarter
 
Join Date: Sep 2005
Location: Ohio
Posts: 925
Points: 34,353
Thanks: 3
Thanked 5 Times in 3 Posts
I believe a dual lift pump kit is available from TTS as well.
maxxis_mudder is offline  
post #10 of 53 (permalink) Old 01-10-2006, 02:53 PM
 
Join Date: Aug 2005
Posts: 2,600
Points: 28,166
Thanks: 0
Thanked 3 Times in 3 Posts
Major advantage to common rail is that you can have like 4 injection events. 2 pre injection, Injetion, and post injection. Lets see you try that reliably with heui. Not gonna happen. Probably the biggest advantage to common rail will be diagnosis. Gone will be the days of trying to figure out if you don't have fuel or don't have oil in there. And then if you didn't have oil, OK which head has the stupid leak.
PSDPlayer is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com 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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome