What is the biggest difference in this topic? Is it that the single plane is for more of a racing application and top end horsepower and the dual plane is for idle to top end or what?

 

There's been a lot of good threads on this topic posted lately. Try a search first, and if you have any specific questions after that, let us know!

 

form what i understand, dual planes are more for idle-up power and single is from say 2500 and up.

 

That's how I would have described it.

 

I don't know many tractors operators even that expect power from idle at WFO..but..

Lets just try something like full throttle operation with max torque over 4500rpm for SP and below 4500 for DP. Very seldom will the results be something other than that...