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Old 02-11-2012, 09:54 AM   #8 (permalink)
Diesel_Dave
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Join Date: May 2011
Location: Indiana
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White Whale - '07 Dodge Ram 2500 ST Quad Cab 2wd, short bed
Team Cummins
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Quote:
Originally Posted by slowmover View Post
As to torque, it was pointed out that, again, the 6.7L (with a different manual transmission: the Mercedes-sourced G56) has an engagement torque of 400-ft/lbs. I'll assume my eariler New Venture 5600 (behind a motor with lower HP/TQ numbers) is similar. Indeed, I have to really come back in at a low rpm (sub-1,000) before I hear the auto-throttle take over and get a touch of rattle.
I think your 5.9L probably has pretty similar clutch engagement torque as the 6.7L. I'd say over 350 ft-lbs easily.

Regarding the "auto-throttle" you're correct. The low-speed governor will not engage until you dip below the idle speed. For me that's 800 rpm. I think it's the same for you. Basically the low-speed governor is there to prevent stalling--if you load up the engine so much that the speed dips under idle speed it adds more fueling to try to get the speed back up to at least idle speed. Of course, it can only do so much. If you try to start off from a dead stop in 4th gear and just dump the clutch it'll stall anyway, because it can't react that fast.
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Diesel Dave

My version of energy storage is called "momentum".
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1 Year Avg (Every Mile Traveled) = 47.8 mpg

BEST TANK: 2,009.6 mi on 35 gal (57.42 mpg): http://ecomodder.com/forum/showthrea...5-a-26259.html


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