big cam 400 cummins tricks
Discussion in 'Trucks [ Eighteen Wheelers ]' started by fullthrotle, May 10, 2007.
Page 8 of 13
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
CLC379 said: ↑Click to expand...
-
Cummins is a Pressure TIME fuel SYSTEM. Were the Pump flows FUEL at a SET PRESSURE up to a Governed Speed then pressure is removed to prevent an overrun. The INJECTORS ARE HOW THE FUEL IS METERED on the N14 Big and Small cam and IIRC ISX series. ONLY ON THE B series what you get in the Dodge and certain Case Tractors is the Fuel System setup different with a Metering pump. Now the Injectors are normally CLOSED unless it is TIME for them to INJECT FUEL into the Cylinder how the amount is Regulated is based off the size of the Injector tip cup and metering Orafice where the fuel flows into the injector. V8 as for you saying you can only get 650 HP from the pump BS. Cummins used the SAME pump for all the engines in their line until the 80's the Big INDUSTRIALS have the same PT pump and some of them are well over 2000 HP. How do I know this called worked on one in Tech School our Clledge had a Backup Genarator that used a Cummins for its power source rated for 2000HP and the pump seal failed. We in class REBUILT IT as a project. was fun putting that sucker on the BENCH for the flow test.
-
ironeagle2006 said: ↑Cummins is a Pressure TIME fuel SYSTEM. Were the Pump flows FUEL at a SET PRESSURE up to a Governed Speed then pressure is removed to prevent an overrun. The INJECTORS ARE HOW THE FUEL IS METERED on the N14 Big and Small cam and IIRC ISX series. ONLY ON THE B series what you get in the Dodge and certain Case Tractors is the Fuel System setup different with a Metering pump. Now the Injectors are normally CLOSED unless it is TIME for them to INJECT FUEL into the Cylinder how the amount is Regulated is based off the size of the Injector tip cup and metering Orafice where the fuel flows into the injector. V8 as for you saying you can only get 650 HP from the pump BS.Click to expand...
When I said fuel pump mods I didn't mean gear pump but the PT governor, and I meant you don't need to change any parts, except maybe fuelbutton, to get 650 hp. Stock gear pump is good for at least 1200 hp at higher rpm, you don't need that expensive 1 1/4" gear pump. -
V8Lenny said: ↑CLC379 said: ↑V8Lenny said: ↑Do you know how it works? I quess not.Click to expand...
i quess you might want to read this
note camshaft involved http://www.tpub.com/content/construction/14264/css/14264_193.htmClick to expand...Click to expand... -
V8Lenny said: ↑You don't understand how PT system works. Celect and ISX are different. PT injector fill port is always open, fuel amount is metered by the pressure, the more pressure the more it fills the injector and the more is injected to the cylinder. At low fuel pressure like idle the injector is almost empty and the injection starts very late. More fuel pressure and injector is filled more, now injection starts earlier and lasts longer. Injection ends always at the same time. That's why you must set timing differently for each configuration. Pressure on the injector cams is always about the same, it just lasts longer. Like someone earlier wrote, wear is always on the tip of the lobe, that's were idle injection is done. If it were because of higher fuel pressure it would be earlier on the lobe.
When I said fuel pump mods I didn't mean gear pump but the PT governor, and I meant you don't need to change any parts, except maybe fuelbutton, to get 650 hp. Stock gear pump is good for at least 1200 hp at higher rpm, you don't need that expensive 1 1/4" gear pump.Click to expand... -
CLC379 said: ↑i still want to know where to set the distributor capClick to expand...
-
Looking to get 500 to 550 hp out of Cummins Big Cam 4,changing from STC to fixed time,any ideas on CPL # to use or injectors,turbo,and what it should be timed at. thanks in advance,any info is appreciated
-
morepwr said: ↑Looking to get 500 to 550 hp out of Cummins Big Cam 4,changing from STC to fixed time,any ideas on CPL # to use or injectors,turbo,and what it should be timed at. thanks in advance,any info is appreciatedClick to expand...
-
morepwr said: ↑Looking to get 500 to 550 hp out of Cummins Big Cam 4,changing from STC to fixed time,any ideas on CPL # to use or injectors,turbo,and what it should be timed at. thanks in advance,any info is appreciatedClick to expand...KB3MMX Thanks this.
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 8 of 13
Related Categories
-
Adding Bunk windows to cascadia
HaulingVibeZ posted Mar 28, 2024 at 12:32 AM
-
Good shops for apu repair?
Mountaintrucker4302 posted Mar 27, 2024 at 12:34 PM
-
Fuse panel layout/diagram
B5love08 posted Mar 27, 2024 at 6:59 AM
-
N14 oil sump tube replacement...
mile marker 27 posted Mar 26, 2024 at 5:46 PM
-
Wheel Stud question.
MIg25 posted Mar 26, 2024 at 11:36 AM
-
c15 asert low power and white smoke
vvicess posted Mar 26, 2024 at 9:10 AM
-
Dry Van Trailer forum...
TruckerNoah posted Mar 26, 2024 at 3:29 AM
-
Deleted 2014 Pete 384 with M13...
corneileous posted Mar 25, 2024 at 3:41 PM
-
Cleaning oil from a charge air...
mile marker 27 posted Mar 25, 2024 at 12:00 PM
-
VNL860 fridge operation
thatguyfrombk posted Mar 25, 2024 at 9:06 AM
Loading...
Recent Threads
-
Someone finally sues C.A.R.B
Judge posted Mar 28, 2024 at 2:24 PM
-
Hogan transport
Kimberly2 posted Mar 28, 2024 at 12:07 PM
-
Truckstop.com
nikmirbre posted Mar 28, 2024 at 10:39 AM
-
400 Crashes
Grouch posted Mar 28, 2024 at 5:36 AM
-
Adding Bunk windows to cascadia
HaulingVibeZ posted Mar 28, 2024 at 12:32 AM
-
Hazmat Placard Holders for Flatbed
AFC posted Mar 27, 2024 at 11:33 PM
-
Help With Gaming Issues
wasted1 posted Mar 27, 2024 at 10:19 PM
-
Company recommendations.
ZOMBIEJOE posted Mar 27, 2024 at 10:13 PM
-
Wichita Falls to Seattle...
farmboy73 posted Mar 27, 2024 at 3:15 PM
-
A refresher
proxima posted Mar 27, 2024 at 2:24 PM
Loading...