Quote:
Originally Posted by zuley
In regards to Jim W's post re new "SAE J2807 spec" coming down the line can you give us a brief heads up as to what the new ratings will be and how they will effect tow ratings. Just curious. Thanks.
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The new standard includes a performance based tow test as a requirement for tow rating. It applies to "Max tow rating" and GCWR. Apparently it now includes all optional equipment "normally installed in the model" and a driver and passenger in the weight rating.
There are five engineering characteristics that strongly influence any tow vehicle's performance:
•The engine's power and torque characteristics.
•The powertrain's cooling capacity.
•The durability of the powertrain and chassis.
•Handling characteristics during cornering and braking
maneuvers. •The structural characteristics of the vehicle's hitch attachment area.
Read more:
http://www.automobilemag.com/feature...#ixzz2CDVgHaDQ
It is important to note that GVW is not a specified part of the max tow rating. However, I'm sure it will continue to be important as will RAWR and FAWR