[Umbriel]

Originally Posted by Katech_Jason

Always with an upgraded low side pump. If you're in need of the +45% injectors you're at a power level that would require DI pump upgrades. We use our Xtreme DI belt driven secondary DI pump: https://store.katechengines.com/kate...stem-p631.aspx

At slightly less power, you can get away with the +30% injectors: https://store.katechengines.com/high...s-30-p561.aspx
For example, in my E85 C7 Z06 I have +30% injectors, 38% cam lobe with stock DI pump, and a low side fuel system. That made 760rwhp.

Thanks for the explanation on it, this DI fuel system is confusing coming from PI on the 4th gens.