I know its an age old discussion, but I am wondering if I should go high impedance or low. I will be running e85 eventually and have the versafueler driver, yet I am seeing a few who have no issues running large high impedance injectors on their setups. What is the consensus on low vs high for most on here, and what are the benefits or complaints? Low impedance injectors I know also run hot so longevity is a concern also. Engine goals are a turbo'd lq4 with roughly 600-700hp in mind.

 

You dont need low imp drivers for that.

 

At what power level are low impeadance injectors necessary?

 

These days there is really no reason to go with a low impedance injector. There are plenty of options that will easily support your HP goals in a easy to use high impedance injector.

Best of the best is Injector Dynamics, which work very well at low pulsewidths for large injectors. Other people have had good luck with Fuel Injector Clinic.

If 700hp is what you're looking to make, I would use a set of ID850's and call it a day.

 

Ids are rhe same exact bosch injector as everyone else, they just spend more time getting the characterzation right on them.