lighting the crank?? - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 16 (permalink) Old 10-01-2008, 05:06 AM Thread Starter
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lighting the crank??

any one ever lighting the crank any? pro and cons to it? I am thinking about doing it with the motor over the winter and adding some light weight billet rods to make the motor rev faster?

Joe "House" Kupferschmid
1995 F250 7.3 2.6 zf6 Puller
2006 Chevy 3500 CC DRW LBZ, Tow Slut
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post #2 of 16 (permalink) Old 10-01-2008, 05:22 AM
 
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Re: lighting the crank??

Not much point for pulling IMO. Great idea for drag racing. I haven't done a 7.3 crank, but I've seen several 5.9 cranks lightened.

Generally fairly expensive due to the materail and the amount usually removed.
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post #3 of 16 (permalink) Old 10-01-2008, 05:46 AM
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Re: lighting the crank??

Sled pullers add weight to the crank to increase the momentum at the end of the track and keep it spinning.

Drag racers lighten it.

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post #4 of 16 (permalink) Old 10-01-2008, 05:56 AM
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Re: lighting the crank??

+1 for what is written above, pulling motors like the inertia.

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post #5 of 16 (permalink) Old 10-01-2008, 03:01 PM
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Re: lighting the crank??

Don't even think about it Joe!!! You aren't looking to go 300' in 3 seconds!
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post #6 of 16 (permalink) Old 10-01-2008, 08:15 PM Thread Starter
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Re: lighting the crank??

ok
it was just a thought more rpm, and faster getting there, more wheel speed was my thinking

Joe "House" Kupferschmid
1995 F250 7.3 2.6 zf6 Puller
2006 Chevy 3500 CC DRW LBZ, Tow Slut
SOLD:2000 F350 harvester of sorrow

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post #7 of 16 (permalink) Old 10-01-2008, 08:20 PM
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Re: lighting the crank??

If your dead set on it, the Early ones 95 I think, had lighter cranks. Gundrilled rod journals ( on at least a couple), smaller counterweights. Not sure how much lighter, but a good bit just looking at them side by side. Havent heard anyone bashing them about breaking any worse than the later ones that I know of.

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post #8 of 16 (permalink) Old 10-01-2008, 08:36 PM
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Re: lighting the crank??

House you have a manual, rev it up at the line and let it eat!

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post #9 of 16 (permalink) Old 10-01-2008, 08:43 PM
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Re: lighting the crank??

I agree. For sled pulling, removing crankshaft weight wouldn't do you any favors.

Now lighter rods, especially the little end, might be better, if anyone was planning to spin some serious rpm, just to cut down on the inertial load. But as of yet, I haven't seen any evidence that showed any issues with that.

I wouldn't do it.
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post #10 of 16 (permalink) Old 10-01-2008, 09:42 PM
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Re: lighting the crank??

what about taking material out of the wrist pins?...they are pretty heavy...



































in that order
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