"The DiabloSport PowerPuck is mostly a fuel box- it modifies fuel and pulse width. It does not add any timing. However, the tune in the Predator called the "puck tune" is designed specially to work with the fuel that the puck can add on the fly. The Predator adds timing and fuel. The Fuel rail Pressure is increased indirectly as a result of the over all power increase."

Does the above statement make sense? Those with rail pressure gauges-please post your rail pressures with any modules or programmers.

 

Diablo told me the Puck and Pred are both T&D and that pressure is indirectly added but they couldn't say how much. They also say that when stacked you have the two puck settings. The high setting is 200/400 but they couldn't tell me how much the low setting does - anybody know? Are the stack settings supposed to be safe for the CP3 and injectors? I would like to try the stack someday. Pred extreme is more than I want and 100 hp doesn't have quite enough low end. Craig

 

Does anyone else have an opinion on this?