Can i use a low/high-imp injector combination?

dudemaaan · 10-07-2009, 04:47 PM

Theres an easy way to find out if the injectors are low or high impedance. Just hook a multimeter up and check the resistance. (ohms) High impedance is usually around 12 ohms and low impedance is usually under 5 ohms.

This won't tell you the size though. But generally high impedance is 550cc and under the exception being FD secondaries which are 850, or bored out secondaries which can be 1200 and 1300cc.

I did find this chart. Not sure how accurate it is but Here

I removed all the other car types and put only the information for RX-7's.

Based on the post above mine I made another chart. So basically just look at the color and take a guess on what you want it to be haha.

10-07-2009, 04:47 PM	#26
dudemaaan Rotary Fanatic Join Date: Mar 2008 Location: Brenham, TX Posts: 335 Rep Power: 18	Theres an easy way to find out if the injectors are low or high impedance. Just hook a multimeter up and check the resistance. (ohms) High impedance is usually around 12 ohms and low impedance is usually under 5 ohms. This won't tell you the size though. But generally high impedance is 550cc and under the exception being FD secondaries which are 850, or bored out secondaries which can be 1200 and 1300cc. I did find this chart. Not sure how accurate it is but Here I removed all the other car types and put only the information for RX-7's. Based on the post above mine I made another chart. So basically just look at the color and take a guess on what you want it to be haha. __________________ 500+ HP thanks to: Fast reacting IAT sensor thread! Mechanical Pre-turbo Water Injection Thread Dual Stock fuel pumps Thread T2 differential swap! Last edited by dudemaaan; 10-07-2009 at 04:57 PM.