Thread: PickupTrucks.com Forums: Where's the $73 Million

The more power being produced, the more heat being rejected from the engine.

Gearing will also make a huge difference in these applications. Most heavier trucks get lower gearing than the lighter trucks.

HD trucks have had lower HP ratings for years. The ratings are for continuous use. For EX: A 260HP vortex in a K1500 will not be able to continuously run at its max HP level. However a 3500HD rated at 240HP is designed to run at max power for long periods. Most HD engines also have sodium filled exhaust valves while the 1/2 ton models didn't. Sodium valves good for heat, not so good for sustained high RPM. Even the new 360HP diesels do...

Makes sense to me. The Superduty I used to maintain had insulation around the batteries - heat must have been an issue. Peak torque on both 6.0L motors is the same and developed at the same rpm. Must be that fully loaded, the higher GVWR dually and chassis cab generate more heat.

Hmm- seems to have gotten pi$$ed away somewhere.............

Despicable. I hope the US gov't goes after that money. Even if it costs more to get it back, just on principle alone.

Fiat Terminates Chrysler's All-Electric Car Plans What's Going to Happen to the $73 Million Gov Grants for the EV Test Fleet? Just over a year ago, the Chrysler Group's newly formed Envi division unveiled a series of production-based electric cars that it planned to put on sale. Fast forward a few months, Chrysler went in and out of bankruptcy, sealed a deal with the Fiat Group and then, in August 2009 under the leadership of...

I'd say right off hand, it's being directed to the DNC for the elections next year. They're gonna need it too.

Easy to beat: engines will simply be "derated" via the ECM...I could derate my Magnum to 200HP...and return it to 340 with the click of a mouse.

 Originally Posted By: Rustbucket Off topic a bit but why does GM derate the 6.0 gas engine (312 hp v. 360 hp) in the duallies and chassis cabs? I'd think you'd want more hp in a vehicle that has a higher GVWR. It's not about Peak HP, it's all about Torque and where it's available (Tq curve). It's not all in the tune either, it likely has a different cam as well.