Well I need help. I am going to put a meth/water injection kit on my car. And i narrowed it down to the aquamist system, but dont no which on to go with. Some people have told me to go with the -5 and other with the -1.

The difference in between the two is the -1 (the older system) kicks in at a setted boost. Also when the system reaches its boost it runs at 100% all the time. I was told this system would be better for the Evo's.

Now the -5 (the new system) runs off the fuel injection system. Basicly it depends on the load of the fuel injection where the meth will kick in. It doesn't run 100% all the time only under full gas. The system might kick in at low boost, just depends on how much gas you give it. Which sounds like you will be using a lot more meth then the -1.

I think there is about a $200 difference in between the 2. So which one would you guys go with and why thanks a lot for your help.

Edited: Why dont aquamist system come with any tanks? And what jets should i use?

 

+5

 

I own a HFS-5 and while I love the system, If I had to do it again I would go with the HFS-1.

Reason being the HFS-5 injects based on duty cycle of the injectors. As a result, any change you make to fuel will also affect the meth. If you wanted to just do low volumes with a 50/50 mix or straight water the HFS-5 might be the way to go. Advantage is you always have the same injectant to gasoline ratio.

With straight meth, you typically want full spray at peak torque, the HFS-5 will not do that as far as I know, but again, it tracks injector duty cycle and matches that duty cycle with the high speed valve.

Tough call to make, in fact I have changed my mind twice in the time It has taken me to type this...

You can't go wrong with either one in my opinion. Check out the meth section here:
https://www.evolutionm.net/forums/fo...play.php?f=173

Tons of information for you there.

 

This is funny because you pretty much said (almost word for word) what this guys told me over the phone. This is why he said he would use the -1. Plus the one is $200 cheaper. I think i am leaning towards the 1 now.

 

I bought the 5 but some swear by the 1. I guess you might as well go with the 1 since it's cheaper.

 

Plus if you decide too, you can upgrade the 1 to the 5 for the cost of a few additional parts. Hard to go wrong with the 1 when I think of it like that

 

Ok you are making this a lot easier for me. I didnt no you can do that. So that is very good to no. Thanks for all the great info.

 

It's all good man,
seriously check out the forum link... Richard, the man behind Aquamist freqeunts that forum. Any and all questions you could ever have about installation, tuning, special configurations, etc etc can be found in the water alchohol injection forum under the
Evo Engine Management / Tuning Forums

 

An other question? Why doesnt the aquamist come with any tanks?

 

Because everyone has a different setup and wants different tanks.

I would go with the 5, HSV>MSV plus you can always just run a bigger jet(s) with the 5 to negate the effect of low meth flow under peak torque/full boost. You will also have less a much lower chance of a meth backfire.

 

HSV>MSV are these the fail safe system. Why is one better then the other please explain.

 

here you go dude... this link has some info on both kits:
https://www.evolutionm.net/forums/sh...d.php?t=309966

link on stuff you will need:
https://www.evolutionm.net/forums/sh...d.php?t=284977

tutorial:
https://www.evolutionm.net/forums/sh...d.php?t=287646

also this test button was really helpfull:
https://www.evolutionm.net/forums/sh...d.php?t=300424


theres a lot of material here on Evom...

 

I went with the HFS-5 for the ability to better mirror the fuel flow. The answer partially depends upon what you need to accomplish and what you want to spend.

 

Hello Joe..,

As far as the HFS-5 is concerned, it can do what the HFS-1 does with ease.

If you want the HFS-5 to become an full on/off system (HFS-1), all you need to do is relocating the IDC sensing wire to the "pump relay" pin of the DDS3 junction board.

If you require the HFS-5 to act somewhere in-between, just take the inline restrictor out.

The HFS-1 is a very predictable system but you need to take quiet a bit of fuel out during spool-up period or you will be running very rich.

As far as failsafe is concerned, they both shared the same control circuitry.

Do you have means to alter your fuel map? If you don't, it will be difficult to avoid rich afr at the trigger point. This effect can be avoided if you run a smaller jet or trigger the system at the higher up part of the power band.

 

Hey richard thanks for the input and thanks for the info on the mac valve. Well as far as fuel is concerned i am having Mitch that use to work a vivid tune the car. I am not going to touch it with out a tune. As you can see my sig. ill have all thoes parts on the car soon so i def need a tune with it espically with the bigger turbo and meth. So with him tuning the car on meth i should be ok.

I decided to run the HFS-1 cuz i like the idea it runs off of boost and plus it was more in my price range. Heard they are both really good system and couldn't go wrong with either. once again thanks a lot.