5.9 cummins timing July 14, 2013 01:44PM
What is the timing on a 5.9 cummins with the pump at zero TDC. P3000 pump 3000 rpm 450 cc fuel in a tractor? Any help appreciated.....
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Re: 5.9 cummins timing July 17, 2013 10:38AM
Set it at 20 and try it....if you cant keep the turbo lit, keep bumping it 2 degrees until it does.
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Re: 5.9 cummins timing July 17, 2013 11:22AM
got it set at 22 wont lite lots of cummins out there and the only way to test is a pull.. shurly someone has a good figure that works for them.
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Re: 5.9 cummins timing July 17, 2013 03:18PM
Stock is 17.5. I ran 32 in my truck.
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Re: 5.9 cummins timing July 18, 2013 01:08AM
If your running 22 now, then take it to 26 and that should be pretty close. I have several trucks that are running more fuel and 4000+rpm that are in the 30-40 range. There isnt a magic number out there. There are too many variables that play into it.
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Re: 5.9 cummins timing July 18, 2013 09:40AM
At 13.5 timing on a stock 215 hp 5.9 the rpms are 2700... im only 300 more at a 3000 limit would a good start be 16 to get heat into the turbo. doesnt more advancement create higher cylinder pressures. Goin to change it htis weekend lookin for a good place to start. THANKS
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Re: 5.9 cummins timing July 19, 2013 12:49AM
Advancing it does build more cylinder pressure. Are you rolling black smoke and struggling to get to 3000 goin down the track at 20 degrees? If so, then you need to keep advancing it. Retarding it will make it worse.
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Re: 5.9 cummins timing July 19, 2013 03:24AM
Stock pistons?
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Re: 5.9 cummins timing July 19, 2013 05:47AM
yes, coated
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Re: 5.9 cummins timing July 20, 2013 01:02AM
I run 30* of timing in my 5.9 and turbot 4200 and light a gt42 3x3 and can keep it light no problem. Fuel mods are custom built 5x18s and built 12mm pump
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