DB2 Pump adjustment for turbo install

thumper_65590

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I have a DB2 pump,model DB2 829-4503 that I am installing on a 6.5TD. The turbo is a GM4. I need to know what the best setting for fuel adjustment and timing for it. I appreciate it and thanks, William.
 

Isaac Ristow

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Install a pyro then it all depends on how much power you want. I have a gm8 on my 85 6.2 studded. I run 12psi and a factory 93 db2 turbo pump. I would run it at 7 degrees of timing at 2000rpm and turn the pump up 3-4 flats watch the pyro and see how it feels
 

u2slow

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It depends on how you work the truck. The fuelling is quite linear (not turbo responsive). Def need to pyro to make sure you don't overdo it.

If you tune it for power, it will smoke more on lower boost and reduce economy.
 
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