AZRR CYM FD Build Coming Together

[RCCAZ 1]

Originally Posted by proz07

hey your running 4 yaw secondaries 1000cc right? whats the ohms for them and how are they wired through the PFC (series or paralell)? i may just end up with this same fuel system. lol come to think of it alot of mine will be close to this build.
z

My guess would be parallel, and I dont think resistors are needed. However, I've PM'd Glen at AZRR and asked him to comment since he did my build.

[glenrx7]

One of the worst things you can do to an injector is put a resistor on it.

Tims setup is wired in parallel

[proz07]

Originally Posted by glenrx7

One of the worst things you can do to an injector is put a resistor on it.

Tims setup is wired in parallel

i understand this but what is the inmepence of the injectors being used in this car? the reason i ask is i want to do a very similar fuel set-up but the yaw injectors i was looking at are 13ohm and wiring them into parallel would put the ohm draw to 6.5ohm's and from what i understand anything under 10ohm's or more importantly over 1-1.3amp's on a PFC will burn up the driver? so are you using a different ohm injectors or do you have an explanation on to why it wouldnt burn up the PFC coils in your setup?
any info is greatly appreciated
z

[joff]

Originally Posted by proz07

i understand this but what is the inmepence of the injectors being used in this car? the reason i ask is i want to do a very similar fuel set-up but the yaw injectors i was looking at are 13ohm and wiring them into parallel would put the ohm draw to 6.5ohm's and from what i understand anything under 10ohm's or more importantly over 1-1.3amp's on a PFC will burn up the driver? so are you using a different ohm injectors or do you have an explanation on to why it wouldnt burn up the PFC coils in your setup?
any info is greatly appreciated
z

I happen to have 4 780cc's yawpower injectors just lying around here. Took my ohmmeter to one of them and measured 12.5ohms. If the 2 injectors are fed 12V power in parallel, that will be approx 1.92 amps.

If you don't mind me asking here, where did you get the 1.3 amp figure? I also happen to be an electrical engineer designing industrial computer boards very similar to a ECU such as the PFC.