Maximum Timing For Stock Engine

[EverydayDiesel]

What is the maximum timing that one can run on a stock engine with full deletes and cold air intake?

Is there a general guideline in % that I should increase?

For now the head studs are the factory bolts...

[2007 5.9]

Timing is rpm and pulse related...you should be basing your timing using a calculator.
Simply setting your max at say 25 or 32* isint the right way to go about it

You may need 25* at 2600rpm but the calc may show a need for 30* at 2900rpm....

[S Phinney]

Wot at 50 percent.

[2007 5.9]

Wot at 50 percent.

If your using 50% on a re-entrant piston, your going to run the flame front out of the bowl as you start to push rpm

[arinkuddy]

Do we have re-entrant bowl then?What kind of timing would ensure the flame stays in the bowl on a stock piston? What what really happens if it gets out?

[EverydayDiesel]

On hp tuners/gassers I have an excel spreadsheet that helps me scale the values. I am looking to create similar or if some has one they want to share that would be cool too.

At the moment I am looking for a maximum % safe timing that I can run on a stock engine as a general guide for the spreadsheet

[KhakiCummins]

On hp tuners/gassers I have an excel spreadsheet that helps me scale the values. I am looking to create similar or if some has one they want to share that would be cool too.

At the moment I am looking for a maximum % safe timing that I can run on a stock engine as a general guide for the spreadsheet

EFILive has a calculator built into the Main Timing tables for Cummins.

[2007 5.9]

Do we have re-entrant bowl then?What kind of timing would ensure the flame stays in the bowl on a stock piston? What what really happens if it gets out?

6.7 engines have re-entrant bowls

[S Phinney]

If your using 50% on a re-entrant piston, your going to run the flame front out of the bowl as you start to push rpm

What are you considering when you say pushing rpm? My comment was at wot. What do you suggest then?

[EverydayDiesel]

EFILive has a calculator built into the Main Timing tables for Cummins.

It does but the original question is how much is the max % of timing i can safely apply to a stock engine