TDG Member Since 2004?
Join Date: Dec 2008
Location: Bahama/Eno, NC
Thanked 3 Times in 2 Posts
Need help understanding relationship between injectors and pumps.
Guys, I'm trying to understand a little better about the relationship between pump output and injector size. Since it applies to 12v Cummins for the most part in this forum, I posted it here.
1. Can you install injectors that are too large for the stock pump? What is the effect? Low injection pressure? Poor atomization?
2. What happens if you increase pump output? Can you "overdrive" stock injectors? Damage? Can you flow stock injectors for a higher pump output?
3. How do you make sure your injectors are matched to the output of the pump? Is there a "range" of injectors suited for given pump modifications? Is injector pop testing and balancing required after pump mods?
Thanks for the help and insight!
2000 Ford F250, Merillion, 6sp, AIC, DPTuner, BB turbo, Adreneline pump, modified IDM.
1998 Mercedes E300, Custom injector nozzles, soon to have Eaton M90 supercharger, 7.5mm pump elements, Holset HX40 turbo and a full custom intake and exhaust system = 400HP from 3.0l