Drew
thanks for your replies, what is CP3, FCA and your number ratio's mean?

this is my first diesel.

 

the CP3 is the high pressure fuel pump. the FCA is the Fuel Control Actuator that controls the fuel flow to the high pressure side of the CP3 pump.

the ratios I'm talking about are different settings on the TST. the first digit is power, the second is torque(or how quickly the box demands fuel)

 

Drew, are u noticing a good difference in both economy and added power with that TST box?

 

without it I'll get around 16. with it turned on I notice huge bump in performance, and a little bump in mileage.

 

what is a TST?

you guys may think I am lying and I would not believe it either but my digital readout with the ramifier cranked all the way up keeps reading 26 mpg @ 65mph highway speed. if I turn the ramifier half way down the mpg drops to 23.5

 

dont look at the lie-o-meter. do hand calculations. with my TST off my overhead is close. . .about .5-1mpg off. with it on I'll read 19.8 no matter what.

do hand calcualtions instead.

also the TST is this http://www.tstproducts.com

 

thanks Drew, I filled it up a couple days ago and will calculate milage on next refill............. Assuming the odometer is correct LOL.. I tell you one thing though, the ramifier gives alot of extra power cranked all the way up.

 

I bet it does. . .however I bet if you had a rail pressure gage your eyes would open up as to how much pressure is being pushed through the system.

 

I came across a write up on how to modify the FCA, yea, you would have to have brass ***** for that one. I would do it......to someone elses' truck.

 

I spoke with the guys at TS performance and they claim it is safe to run cranked all the way up. What is the stock pressure in the rail vs. the cranked up version of pressure? Sorry for all the questions but again this is my first diesel truck.