My water/methanol injection install

[Toni]

Started a thread because I had a bunch of pics etc that I didn't want to clutter the meth do/don't and I find things get lost in generalized threads but I will add my summarized findings over there.

I actually installed this kit last fall and got it dynoed at GZP. I initially went with a snow performance stage 1 boost kit. This kit turns on the meth 100% at a certain boost level. It came with a pump, tank, nozzles, and hobbs switch. I ended up using the washer bottle as my reservoir and mounted the pump upside down on the rear frame member. I had some problems with the snow kit as it came but I will get to that later on. For now, the install.

For the connection to the bottle I just connected the meth pump to the outlet of the washer pump. If you have ever taken out a stock tank with fluid you will find it will always leak out freely. This might not be true for all pumps but the few I've used it seems that way.



I put some rubber on the bottom of the pump and made a couple of 90 degree brackets to hold it in place. Hard to see I know. One brackets connects to the top of the tranny the other bolts to the fuel pump bracket.

(sorry a lot going on here so it may be hard to pick out)


The line up to the engine goes around and up along the firewall. I wrapped this line in high temp nylon loom and wrapped that in mesh high temp loom.



This then feeds into an AEM filter then to the AEM Failsafe monitor on the firewall. Then will connect to the nozzle bolted into the 90 before the throttle.




Initially I had the snow performance nozzle. When I got on the dyno we wanted to do a baseline pull to make sure verything was the same from last dyno session. The car fell on it's ass. Greg noticed something coming out of my blow off valve. Sure enough, we found out it was water/met. So for some reason the system was pulling liquid out into my intake. The snow nozzles don't have any kind of a check valve. So we replace it with an AEM injector and I never had a problem since. My injector nozzle is not mounted lower than the tank so I dunno what was going on before.



The AEM failsafe device monitors flow and sends a ground or +12 to outputs of your choice. I choose to power a relay to disconnect the line going to my boost solenoid to drop me down to wastegate.

The failsafe comes with a gauge(which houses everything) and the flow meter.

The gauge's colors can be changed to pretty much any color which is nice. I feel like all gauges should be like this.


To start, you tune the high and low points for your system. So for progressive systems, it monitors both flow and duty cycle of the pump. Data is logged and here is my setup.



You tune how long the flow curve can go past the low flow or high flow lines to trigger the failsafe.

For the actual methanol, I purchased a 3/5 gallon drum at a local chemical supply. I don't recall the cost but it was the cheapest option and the easiest volume to get. I then mixed it with distilled being careful to weigh out the correct amounts to get 50/50.

-Antoni

[CoopKill]

Good stuff!

So mixing is done by weight not volume?

[Primus101]

So where did you mount the nozzle?
I noticed my mix was getting recirculated into my intake tubes as well, but attributed that to chopping the throttle @ boost & spray (& any still in the y-pipe ending up going through the BOV, & in my case, the intake tubes)

[Toni]

I mounted the nozzle in the corner of the 90 going into the throttle.

[Toni]

Ran/running into two problems with my meth setup.

1) AEM recommends to use a filter with their flow sensor. I recommend AEM tighten the pre-installed fittings on their filter. Damn things starting leaking on me

2) My system spikes flow in the beginning causing the system to trigger the failsafe. So between every shift there is a spike in flow. I don't think there is a check valve on the pump side so all the pressure is lost. The initial flow spike is the system pressurizing. I'm going to install an inline checkvalve close to the pump to try to maintain pressure.

Orange being meth flow.

[CoopKill]

Will have to see if I get the same issue with the snow. I have a few check valves just in case.

[Toni]

Yeah. I also think I am going to move to all AN lines over the winter. I don't think I like these plastic push to lock lines/connections.

[CoopKill]

I will be doing the same as soon as I get to have some seat time.

[Toni]

Well, turns out the check valve on the pump side won't work. It's not pumping past it. On the end of the line it works fine. So weird. Yes I tried both directions I ended up testing it on the end in both directions too. In one way it pumps through. In the other it blocks it...but apparently so did my pump cause I couldn't get the damn thing apart after it had so much pressure in it. So looks like my pump valve is actually working great. I'm wondering if maybe the check valve in my AEM nozzle went bad. So I replaced it with the extra I had. We'll see how it goes. If this doesn't work then I guess I'll have to scrap the whole aem flow failsafe or maybe call them and see what I can do.

[sublime_whatigo]

Thanks for the write up. I just had this issue with mine. The low fluid indicator cracked, not sure if it was meth related or not, but everything else on my car is in pretty great shape. So keep an eye out for this.