Water/Methanol Injection

[Dan L.]

Originally Posted by bleedEGLblue

Wow, you are a wealth of info on the subject. Thanks a bunch. Helped out quite a bit seeing some numbers.

Welcome to AF. Hopefully you will be an asset, starting off with a boom like that.

Thanks for the welcome. Just came across AF a few days ago on a google search. Lots of good info on this forum. Hope I can contribute something valuable to the community.

Best regards,

Dan

[cantgo2fast]

I have a question, what if i wanted a way to switch the W/M on and off and say when it was on for track days or what have you DSMlink would recognize it and load a different map that had higher boost and a fuel map for the W/M. would that be possible?

[Dan L.]

What type of inputs do you have with the DSMLink to switch between maps?

If you were using the VC-25 controller from Labonte MotorSports, it has an injection dissable. You pull a wire to ground with a toggle switch to dissable the injection for when you are stageing the car for a drag race or running a differnt map.

Dan

[cantgo2fast]

Kinda what i want to do is when i flip that switch on i want DSMlink to automatically swith to my "race map" for the W/M. In all honesty i dont know the inputs for DSMlink. someone els on here could answer that better than I can

[Dan L.]

Looking at the User Guide for the DSMLink, it looks like software that allows you to download maps for WOT into the stock engine computer. If that is the case you will need some type of aftermarket engine controller to do the map swapping that you want (AEM)

A simpler solution might be to tune your engine with the DSMLink for the water injection and use a fail safe that activates a solenoid to limit your boost pressure to wastegate pressure.

Best regards,

Dan

[eclipsed at 3am]

another thing, you would only need an fmic if you plan on switching the meth on and off. people can run constant meth 24/7 and not have an intercooler at all, the meth causes the air temps to get progressively cooler with more boost. In this case, the fmic would only slow down airflow. Also with a setup like that, you never have to worry about heatsoak.

[SilvrEclipse]

Yea but if you had a FMIC also it would cool the air down to a resonable temp them the water/meth would make it even colder. Plus you would have to have a big ass bottle to keep from refilling it everyday.

[kjewer1]

If your main fuel is gasoline, you still need an intercooler. You aren't injecting enough meth, it's still 95% gasoline. Only running 100% meth only (as your main fuel) can you get away without an IC.

[spyderturbo007]

Originally Posted by kjewer1

Many prepackaged kits come with at least a warning light, but I prefer to implement some kind of hard stop, easily done with DSMlink or an EMS. With the AEM for example, you can use the nitrous maps to have it default to standard timing and fuel settings when the meth runs out or a component fails.

Kevin, can you explain how I can do this with DSMLink?

Running out of meth during a run is something that I have been worried about, since my only protection comes from a warning LED and the CEL coming on in the presence of knock. But I'm not sure if that would give me enough time to get out of the throttle before something bad happens.

[Dan L.]

Labonte MotorSports sells an Injection Fail Safe unit (IFS-10)
It is designed to monitor your injection flow and if it drops below a set point it outputs a 12v signal. You could use the 12v to toggle a map in like the AEM or they have a boost bypass solenoid that will limit you to wastegate boost pressure.

Best regards,

Dan

[kjewer1]

Now that I think about it, I can't see a way to do it with DSMlink... It only works on outputs, no inputs. My bad.