I just picked up some supra black top injectors part number 23250-42010, I'm running an MS1 v3 board. I read in another thread that brain said to use a 50watt 10 ohm resistor wired inbetween each injector ground, is that correct?

 

any one??

 

That is one way to do it.

 

What are some other ways?

 

Another way would be to go to jbperf.com and buy a PWM injector driver board and wire it inside the MS. This would allow you to drive PWM injectors directly.

FWIW: I ran 450cc dsm injectors in my miata with 10ohm 10watt resistors with no ill effects (the guy that bought it from me still drives the **** out of it without issues)

 

Yeah I'm probably going to end up buying some resistors and wirig them inline with the injectors. Is there any stores that sell that high wattage of resistor? I know radio shack doesn't carry that high, but idk what other types of places would other than online

 

14.1V/10Ohms = 1.41A.
1.41A x 14.1V = 20W.
So even if your injectors had 0 resistance of their own and you had a 100% duty-cycle, 50W would be waaaaay over-sized.
Chassis mount resistors can exceed their watt rating considerably when properly cooled. That would mean bolted to a heat-sink (like the MS housing for example).
So 10W should be sufficient. They can be had at Mouser or Digikey.

Mouser

 

I have a peak and hold injector driver now, but used to run resistors via raiding an junkyard for a resistor box from an old (88-91) prelude that was there.

 

i just went ahead and bought some 50watt 10Ohm resistors. so we will so how it works out when they get here and i get my build done hopefully next week it will be finished