Got some questions about the Fuel Plates you can put in the P7100 pump. Im pretty new to the whole diesel thing, so bear with me. I have a 95 with the 175hp pump and a handshaker (manual trans.). I just got done putting the #5 plate in (kinda looks like a #100 plate from what I've seen). I also have autometer phantom 2 gauges, (mechanic boost, elec. exhaust temp, elec. oil temp). I have my exhaust temp probe about 3 inches down from the exhaust elbow on the turbo. I used the guard when installing the plate so its in the orignial position, but i turned the star wheel so it smokes, and boy does it smoke. hehehe. When i get on it, it seems almost like stock until it get to around 2000rpm, then it takes off like a rocket, i was wondering if there was any way to get it to be consistant. I also notice that when i get on it through all the gears that the exhaust temp reads around 1000, is that a little high for being down 3" down the pipe. If so, should i turn the star wheel. I was also wondering what it should be boosting at WOT. From what ive seen it goes to around 28 but its hard to tell, i need to get a snubber. Thanks for having such a good forum, i think ive learned more on this in the last week then i have about cummins in the past year.

 

You need to adjust your governer arm. Sounds like it is too low. I just did mine. Mine would do the rocket launch at 1500 rpm. I have the governer arm plate about the thickness of the plate below the J hook. I went to high on the first adjustment and could only produce 22 lbs of boost, with it to low I was produceing 38 lbs of boost too much. So on the second adjustment I got it right 32 lbs of boost fuels all the way through the rpm band. It is a bit of a tight spot to get at the arm adjustment, but it is worth the effort to do.I also lost 50 degrees of egt on my test hill with this adjustment

 

How do you adjust the govern arm, i have heard about it, but i wouldnt know how to adjust it? Is there any message forum that has already told about this?

 

I said to adjust it just below thej hook but that is wrong I meant to say just below the tip of the j hook. Here are two very good pages about this. Got diessel has a real good post on this subject.
http://www.cumminsforum.com/forum/showthread.php?t=922
http://www.cumminsdatabase.com/read.php?id=58

 

Ok, it sounds like i have to take off the rear cover and adjust the bottum left screw, i was wondering which direction makes the governer arm come up.

 

Turn in to go up and out to go down.

 

WOW! nice testing!!! so where does it have (on the plate) to be to work perfect??? didnt know it affects egts and boost!

 

Nates90:

Watch your EGT's. You can add 200-300 degrees to the post turbo reading to be more accurate so you are probably at 1200-1300 which if kept up too long will result in carnage. Do you have a boost elbow on the turbo? This may help to control temps and smooth out your power. TST has the boost elbows for around $25 or check some old posts for blocking the wastegate. Give these a try but watch the EGT's.

 

ur fueling has alot to do with the profile of the 5 plate...if i remember the 5 plate has a curve cut out in it a lil higher up...and therefore the strong fuelign comes on later on...designed to save ur tranny ...and give u good top end....thats why u will here alot of guys preachign the 10 plate or 100plate...because u get consistency and a smooth fuelign cruve from the beginning to the end of the rpm band

 

if u want it to feel like a 10 plate u can....just adjust the gov arm so that the lip will hit the very begining of the fuel curve on the plate..you'll probably have to elevate the arm some

 

I put two pages up in one of my posts one of them does a very good job of describing how to and where the gov. arm should be.

 

The #5 is a tranny killer. It fuels very hard down low, unlike the #10. The #10 is a tranny saver because the bottom end fueling is minimal as compared to a #5.