Injection Timing - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 4 (permalink) Old 01-31-2009, 12:55 AM Thread Starter
 
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Injection Timing

Could anybody here post what kind of injection timing numbers that they are using? I guess more specifically, the start of injection timing in degrees BTDC at what RPM. I'm curious as to what amount of advance these high HP engines need and can tolerate.

Along those same lines, what boost pressures are common?
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post #2 of 4 (permalink) Old 02-01-2009, 04:38 PM
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It all depends on what your running for mods and if yuor running fuel only or nitrous. If your running nitrous you dont run very much timing at all.

As far as boost If your running waste gates and nitrous anywhere from 60-90lbs and no waste gates you can get up to 140lbs of boost.
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post #3 of 4 (permalink) Old 02-01-2009, 06:14 PM Thread Starter
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I was mainly interested in what modified but still steetable engines are running. For example, as a starting point, what is the max timing for a stock Dodge/Cummins (common rail) or a Duramax? At what boost (factory setting)? And from there, the same engines, but modified to the 500 -600 HP level. Diesel only, no nitrous.
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post #4 of 4 (permalink) Old 02-02-2009, 03:11 AM
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Mine is about 500 hp right and Im only running 17.5* I should be running 22* but dont have the air I need yet. But that is on a 12V I dont know about CR's or Duracraps
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