1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

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  #1  
Old 09-10-2011, 11:10 PM
crazy clem's Avatar
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to all you guys out there who dragrace their trucks , what are your methods . clutch / auto? 4hi/ 2wheel? try to build boost onthe line before lighting the second bulb ? I already have lotsa runs in my car , but curious about the best way to race my 1st gen .
 
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Old 09-11-2011, 01:08 AM
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NON lock-up 46RH, 4WDhi. I creep to the 1st bulb and wait for the other guy to fully stage. I quickly build up boost and inch into the 2nd bulb.

If your tree has the top/middle bulb that flashes till the guy pushes the auto-start button, wait until the top/middle light goes solid (meaning auto-start is on). Wait in the first bulb till the top/middle light goes solid, quickly build boost and creep into the 2nd beam and be prepared to go.

> Sitting there, all reved-up, full launch boost, etc, . . .waiting . . . . for everyone else to get around to it does nothing but flash-heat the trans fluid in the converter. That makes it thin and it won't hook-up like cooler fluid would.

5psig ~ 10psig boost at launch would be all I'd try with a trans with stock shafts.
 
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Old 09-11-2011, 08:16 AM
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the np205 t-case doesnt mind all that stress in 4wd hi?
 
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Old 09-11-2011, 10:01 AM
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My trucks already broken two output shafts, so Ill be carefull with the boost on launch. takin the kid and car out to the mega ford drags today so i wont get to play with the dodge till some other time.
 
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