Hey, ok just rember seeing someone mention something about running meth injection and how it would interfear with a lauch control setup. just wondering if anyone who understands that a little better could see any problems with the Meth/water spratying while 2 steping a car (with fuel OR ignition cut style 2 steps)
Later
DJ

 

wow good question, i would love to know this as well.

 

You just want to be careful becuase if you are sitting on the line wide open on the 2 step in fuel or ignition cut you build boost. If you happen to build enought boost to turn on your Alternate injection it will make quick changes to your fueling causing overly large backfires and alot of pressure depending upon the situation. Also be aware that ignition cut 2 step seems to be more violent comaired to fuel based 2 step. Most of the time you use 2 step it is trying to eliminate fuel at certian points as it pulses and with the Alternate injection being totally seperate and not controled in the same way is why you can also have a issue. You are best if you do not build enought boost to turn on the Alternate injection while using a 2 step rev limiter.

Just my .02 hope it helps give you a better understanding.

 

how about a system that is IDC based, the aquamist hfs-5?

 

I keep my boost just under the start spray point on the Rev Limiter. I dont want to spray meth into the cylinder and have a large build up of in the intake.

 

well right now i am currently running a 35R aem. stock motor. just looking to add injection for some protection... i currently am using an ignition cut 2 step. and i will build full boost if i hold the 2 step for much of anything close to more then a half second.... yes much more violent but very affective...... but can something like the aquamist be set up/ programed to not opperated durring a launch>???????????

 

If the system is IDC based I would think it would be much safer using it in the 2 step area but I can't speak for it as I have not tested it. I know that the aquamist hfs-5 system has alot of advantages compaired to some of the first born kits adapted to the evo and if it worked it would just be one more selling point.

 

the aquamist system is very adaptable. But with any system, you should be able to run your "activation signal", whether it's IDC or boost level through a switch on the clutch. Clutch in... no spray. Clutch out.... spray.

 

Great idea with the suggestion above for those who want to impliment this, to bad a kit doesn't already have this operation built into it as it will require a relay to make it happen.

 

But is this nessesary????????

 

As for my self I would say yes if it is needed meaning if you are reaching that boost level via 2 step. But this will be up to the individual and how far the person wants to streach his luck along with their experience. What conserned me is that knock becomes visible when the system activates reason being why I aviod it.

 

never thought about that, but i dont have launch control on the sti haha

 

I spray at 9 psi, and have had no issues with spraying while using 2 step.

 

Our new VCS3G controller is IDC and Boost based so this would be one option. It does not toggle a solenoid based on a fuel injector pulse, but actually calculates engine fueling and injects the required amount based on boost. think of it as a fueling computer for water-meth.


Also all our VC-25 and VC-100 injection controllers have an injection disable for launch control. You pull one wire to ground and this disables injection. As soon as the ground is removed the controller starts injection at the current MAP reading.

Best regards,

Dan

 

Using HFS-1 and IDC trigger, I've yet to spray meth on the 2-step which is set around ~10psi in lower gears and ~15 in 5th