with stock injectors, i see duty cycle upto 95%, if i upgrade injectors, my duty cycle will go down. i think this will affect the amount of methanol/water spray b/c controller detect duty cycle and control/adjust water spray?

what's the solution? should i just adjust the aquamist controller?

 

You should have a couple of additional jets that you can use that came with the kit. You also can order more jets that more closely matches your new setup if the jets you have now are not going to cut it with the new setup..........if you used the jet adapters in your existing setup then swapping jets should not be a big issue if the jets are fairly easy to get access to.

 

Aternatively, you can double pulse the HFS-5 to increase the flow electronically. Evotio has done this and the works very well.

 

Just use next jet size up. Its quick and easy.

TRIM ADJ on HFS6 will fix this, yippee.

 

how do you double the pulse?
i am using 1.0mm and 0.7mm currently, so by adding more jet will flow more water? or is like kinda fixed amount of water from pump depending on duty cycle.
because if it is fixed amount, then more jet will cause low pressure in each jet/maybe poor atomization of spray???

 

 

hmm...diagram looks a little more complicated than i anticipated...
...
so easier solution is to add more jet? will this affect flow/pressure at all?
i will come back and look at my install diagram.

 

I would just swap out the .7mm for a 1.0mm jet. It will not effect pressure or atomization. The pump can easily handle 2x 1mm jets. I know because that’s what I run.

 

It is not that involved, just get two in 4007 diodes and splice them in and you are done.

 

looked more carefully and makes more sense now.
i checked my wiring(thanks go Abner!), my green wire is tapped to pin #2(no 3 injector) on evo8 ECU diagram. so, i need to split current green wire into 2 green, tap to both to no 1 and no 3 injector(pin #1 and 3), using 4007 diodes, correct?

so, stupid question, pin #'s 1,2,14,15 on ECU(injector 1,3,2,4, respectively) is negative, correct? i don't have to wire it from actual injectors.

 

I think those are the pinouts, but check again. You can wire it from the ECU.

 

With my set up, I'm running 1000CC RC Engineering injectors anticipating to run E-85 someday. My IDC's are also about 49% at redline with my current tune with 91 octane and twin 1mm nozzles. I am running (2) 1N4007 diodes tapped into the injector wires exiting the ECU harness for injector #1 and #4. It works great.

 

i am sure there is no right answer but i don't know which one is better, adding another jet-right after IC pipe and cont with current 2 jets near throttle body OR do twin pulse trigger.

 

There is a third way.

If you splice the second diode to the next injector, you will get 2x rate until they started to over lap and high RPM.

 

If all else fails, get the HFS-6.