Anybody know if these injectors need resistors or not, I've heard no, and I've heard yes, can anyone clear it up

 

with a quick search of the code. they are delphi injectors. and are High Impedance.
I cannot remember the injector rules with the DME.

 

951 injectors are 5.x ohm but wired in batch so DME treats them as low-impedance injectors. When wired individually, some aftermarket ECU's can run them as high-impedance injectors.

 

1. measure impedance with meter
2. stock 951 injectors are 5.5-ohms
3. resistors needed = 5.5 - (#1 measurement)

For example:

1. measured injectors @ 2.5-ohms
3. 5.5 ohms - 2.5 ohms = 3.0 ohm resistors needed per injector

If #1 measurement is 12.x ohms high-impedance, then subtract about 20% flow-rate from those injectors due to higher latency.

 

So then these would be less then ideal to use, guy I got them from said he ran them on his 951 with no resistors and made 350hp

 

if you have a rogue tuning chip, you should be able to run those. although you need to get the software updated for larger injectors.

 

Yea I just talked to Josh about having the chip remapped for the bigger Injectors. I'm just afraid that I'll damage my computer because the resistance is different

 

No worry about computer damage with High-Z injectors. (which is what those units are)

 

Cool then I'll send them to get cleaned and flowed and then all Im waiting on is your chip Josh, Thanks!

 

No problems if they're high-ohm then. Just won't be able to deliver full flow-capacity that's all.