By looking

at the plate numbers, there are some plates, IE the 8, and lower that are not reccomended for a manual tranny truck.. What are the effects of running these plates on these truck? I take it that the clutch and driveline has to be heavily modded to run these... But is it possible that they be run? or is a 100 the highest plate that can be run on either manual or auto? all of this is somewhat of a blurr to me... and i know, a goofy question...


Tx

 

If you go to TST's website and load the table on recommendations for fuel plate use you will get the best answers to your questions.

The plate numbers are not necessarily sequential from the standpoint of a higher or lower number meaning more fuel flow. The number of the profile is matched to the pump and application by year and horsepower of the Cummins. An 8 in one series of Cummins will yield significantly more power than the same plate in another pump with different delivery valves, in which an 11 will by far yield the most power, and so on.

It is all a balancing game of fuel and air, and the size of the delivery valves, the initial fuel lead internal to the injection pump, the static engine timing, fuel supply volume and pressure to the pump, the injector size and location relative to the combustion chamber and piston top, exhaust manifold size and shape, turbo capacity and profile, turbo outlet size, downpipe size, and exhaust pipe size all have to be considered when you step outside the recommendations made by TST.

It is pretty universal that the most agressive plate in any application is generally a "0," and it is pretty much simply intended as a buffering stop to keep from beating the internal pump fueling control to death and ruining the pump on engines with heavily modified fuel and exhaust systems. A 0 will not work at all well on a stock fuel and exhaust system.