Cab/chassis vs standard DRW
Do Cab&Chassis trucks weigh more than standard DRW trucks (all other things equal)? I bought a 2021 3500 Chevy DRW cab/chassis gasser, crew cab, 4x4. The stated payload on Chevy's website for an "e...
Forum Discussion
rjstractor wrote:ShinerBock wrote:
In regards to the power difference, this is due to emissions certifications. A complete pickup goes through what is called a chassis dyno certification since the truck is complete. This certification is less stringent and more power can be had. For C&C trucks, they go through a engine dyno certification since the truck is not complete when it leaves the factory. A lot of people think it has to do with duty cycles, but it is only due to different emissions requirements and certifications.
I was among those who erroneously thought the difference was due to duty cycle. I understand that the chassis dyno cert used on complete trucks is different than the engine dyno cert used on incomplete trucks. My question is, if a pickup with X power rating and a cab and chassis truck with Y (lower) power rating were compared side by side using a chassis dyno, will they produce the same amount of power at the wheels?
I spoke to the fleet manager of the very large dealer I bought my cab/chassis truck from - he said that, at least for the Chevy/GMs, the same engine/rating is in both a 3/4 ton truck and a 3500 cab/chassis one, no "detuning" going on on the gasser side (6.6L engine).
