Performance: 3116 vs 3126 and WTECII vs WTECIII

[tennmogger]

Performance: 3116 vs 3126 and WTECII vs WTECIII:

Does anyone have personal experience driving those combinations, the changes that occurred about 1998? Were there 'crossovers', like 3116 with WTECIII, or 3126 with older WTECII?

Did the switch from wired to a solder board PDP (power distribution panel) take place at the same time?

Several of you have said to avoid the printed circuit PDP, but any issues with newer engines and transmissions?

thanks

 

[Suprman]

As allison came out with newer generations of wtec they discontinued the older versions. They all work well. I have seen c7 trucks with wtec3. The wtec3 ecm is in a better location to deal with light water on the dash. The computerized engines can have more hp. First a1 trucks with 3126 have pcb, c7 has the 4 breaker blocks.

 

[scottmandu]

All 3126 was WTECIII

 

[snowtrac nome]

The electronic engines can have better performance, but it comes at an expense. the 3116 engine in my opinion is a much more affordable engine and really all I need. All the 3000 series transmissions are reliable the newer models do seam to be smoother as they shift.