Quote:
Originally Posted by CamaroSkooter
Do you think the engine/drivetrain or the truck frame geometry will determine the towing capacity? 
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Depends on what the limiting factor is for that particular vehicle. Could be the frame, could be the engine/transmission, could be the brakes, could be the payload capacity. Some of that is dependant on the trailer being towed as well, plus how it gets loaded. A trailer with 2/3 of its weight on the tongue, with no brakes needs a bigger truck (and possibly a smarter owner) than one that has 2 sets of brakes & is properly balanced out.
All that said ... I wouldn't want a gross combined weight of roughly 10,000 lbs (truck, trailer, car, me & my stuff) being motivated by a mere 200 or so hp, diesel or not.
Quote:
Originally Posted by CamaroSkooter
Nice!
Now I just wonder if the limiting factor will be the drivetrain or the truck frame...
Do you think the turbo-diesel power output will be considerably higher than the LFX?
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Substantially less. In other markets, the diesel is 200 hp, 368 ft-lbs. Should be roughly the same over here, though probably a touch less due to stricter emissions requirements.