Daveinet wrote:
The gasser grade brake does more than just downshift. It also locks the torque converter, so the engine speed is more directly coupled to the trans. They also completely shut off the fuel, which increase the engine load further. Is it as effective as a exhaust brake? No, but it is adequate.
Do they report HP for this feature
Cummins reports hp for various engines. It gets back to weight/hp and this may show a quantitative value for the effectiveness.
I would expect it to work well enough, but the calculation would quantify it for nonbelievers
