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Dropping rail with 3 CP3s?
I'm commanding 179 and my max rail is set to 180, I think it's time to upgrade the rail psi sensor so I know for sure what's going on. Sent from my iPhone using Tapatalk -
Dropping rail with 3 CP3s?
If I do this will the desired pressure stop when it reaches commanded or will it keep on going?? It's an LB7 so the fuel pressure sensor will only read to 180mpa. Thanks. -
Dyno setup/Load%/ gear?
I wish, no had to take it to Edmond, OK, PSE superchargers had the dyno.- DPC
- Post #7
- Forum: Dynamometer
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Dropping rail with 3 CP3s?
The CP4 I was referring to is NOT a CP4 pump it is a CP3 from a 2010 6.7l Cummins, for some reason I thought the newer 6.7s had CP4s. I need to edit my first post... sorry for the confusion. -
Dropping rail with 3 CP3s?
That's horrible! What do you plan to change? I am curious as to how Yellow Jacket has his pumps setup. -
Dropping rail with 3 CP3s?
Yes, that is where I am going to start... I also have two spare PPE controllers I thought about hooking together to test. -
Dropping rail with 3 CP3s?
Dialing it in for the first time. The truck has gone through so many changes its hard to pinpoint the problem. I thought about saying the heck with it and putting twin 12mm Exergy pumps on it but that is a 5k bill I really don't want to mess with right now. -
Dropping rail with 3 CP3s?
Yes same issue. Yes, that is exactly what mine is doing! Initially I noticed it around 3k right where my pilot injection shuts off. I extended my pilot out to 4K and that helped at light throttle but did nothing at WOT. -
Dropping rail with 3 CP3s?
Thought about that but I have ran modified pumps with stocker pumps in dual setups without issue. Sent from my iPhone using Tapatalk -
Dropping rail with 3 CP3s?
It's what I had on hand at the time. First hearing of stock cp4s having problems. Sent from my iPhone using Tapatalk -
Dropping rail with 3 CP3s?
Switching controllers fixed your problems? Sent from my iPhone using Tapatalk -
Dropping rail with 3 CP3s?
I am using two FASS 150s with AN -10 feed lines up to the engine which then splits into three AN-8 feed lines, one per pump. I have a digital lift pump gauge, idles @ 11psi and has not dropped below 9psi. How are your high pressure lines routed? Thanks. -
Dropping rail with 3 CP3s?
Fingers made the controller for me, seems to be working correctly. If I unplug a pump rail shoots up, plug it back in and rail is back to normal. -
Dropping rail with 3 CP3s?
Torque tables and Duraflite? Since I no longer have an Allison telling the ECM torque values and everything Allison related turned off in the DTC files how does this play into tuning the torque tables? I noticed in the logs the TQ value doesn't change in the runs. Still doesn't change the... -
Dropping rail with 3 CP3s?
Wow, very interesting! I had no idea large injectors could make that much of a difference. The biggest injectors I have worked with were only 50% over. -
Dropping rail with 3 CP3s?
Yes very close. The scale on my tune is also adjusted to compensate for the modified II regulator. This is what I run in table B1010. 1800.000000 1648.500000 1488.750000 1326.750000 1215.750000 1159.000000 1121.500000 1088.000000 1056.000000 1020.000000 1000.000000 993.000000... -
Dropping rail with 3 CP3s?
small tune That was the small tune, but something to look at. 2000us is only about 500 higher then stock. Getting back on the dyno is not a small task so I need to run through a punch list before I get back on. -
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Dropping rail with 3 CP3s?
Having a rail pressure issue with my triple CP3 setup. Pumps: Valley pump is a reman II 45% with about 68K and 7 years old. It feeds the stock location LB7 distro block. 2nd pump is a 6.7 CP3 with about 48K feeds the back of the passenger side rail. 3rd pump is a LBZ pump with about... -