8.3 cummins on alcohol September 05, 2011 03:49PM
just wondering who out there is running the 8.3 on alcohol and also wondering what needs to be done bottom end wise to take the rpm. any info at all would be great! thanks in advanced
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Re: 8.3 cummins on alcohol September 06, 2011 01:07AM
Crank needs to be counterbalanced, needs girdled, have to machine the main caps flat for the girdle, thrust the main bearing thrust top and bottom.
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Re: 8.3 cummins on alcohol September 06, 2011 03:21AM
we use a 8.3 crankshaft in our engine and it has proven very reliable.
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Re: 8.3 cummins on alcohol September 06, 2011 04:40AM
I ran my engine with stock rods and decompressed diesel pistons for a couple years. Has a 1" girdle on it. The bottom end is very strong. I have the rods & pistons if anyone needs them.
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Re: 8.3 cummins on alcohol September 06, 2011 01:07PM
how hard did you turn that cody?
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Re: 8.3 cummins on alcohol September 06, 2011 02:27PM
5000-5500rpm.
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Re: 8.3 cummins on alcohol September 07, 2011 08:52AM
You're not gonna find to many parts that are tougher right off the shelf. Cummins cranks are hard, the blocks are very high nickel content.
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