yes, this is easily done with an AEM ECU.

I run the Aquamist HFS-5, which has a flow window you must be in for the meth system to activate. Too high of flow (lost nozzle) or too low of flow (plugged nozzle) and the system won't activate. Once activated, the AEM will switch to a completely different timing and fuel map. And if the meth system doesn't activate, you are limited to wastegate boost pressure. Nice setup. Is it failsafe? No, but what system is?

And to an earlier poster that says meth isn't safe and shouldn't be used..... turning up the boost isn't safe either. Safe compared to what? It's all relative, so play at your own risk any way you decide to go.

 

well... it might as well be 100 miles even tho its only 40-50. Its just as inconvenient when its the opposite way from work/home or any place I go. I would choose e85 over meth too but... yeah drinking the apple juice for now and probably never meth. Sure would be nice if Orange county was a little more down with the corn.

 

mike,

thanks for the info. the 4g63 must not like meth/water injection. in theory it "should" work just fine, but in reality motors blow. no e86 near me so how much is race gas per galloN?

 

this is what meth did to my old engine....
https://www.evolutionm.net/forums/ev...block-pic.html
enjoy :

 

Ok for all the meth haters I find nothing wrong with meth. I was actually going to run meth on a built motor before making the decision to run E85.

If you run meth with stock ECU which I had originally planned on. Start with a good meth kit Aquamist only people. I would only run Tephra V7 with it. On the HFS-6 the is a yellow connector and there is a pink wire that outputs 4.7 volts under no fault or the system is ready this working with V7 pined to the stock ECU will switch to the alt map. Now when the meth system detects a fault such as low fluid, incorrect flow, or the gauge turned off it will trigger 0 volts which will pull the ECU to the original map. The time set to switch from one map to another is 1sec. Now add a 3 port boost control solenoid the ECU is controlling boost from high to low your taking 1 sec to switch from 35psi to 25psi.

What else can we add? Lets add a wideband into the mix and have the lets exceed the voltage preset and the WGDC will drop to 0%. Also add in high knock count and a longer then 2 sec duration after CEL continues to flash after last occurrence has stopped and boost will drop to 0% WGDC.

There is nothing wrong with meth as long as it's installed with disaster in mind. If everyone would install their meth systems in this manner engine failures would be eliminated.

 

Meh, I've been using Meth for years, i have not choice I live in Canada, E85 isn't an option. I've had no issues and run 26PSI allot. Nothing is fail safe, if your worried about blowing up your car then stay stock, if your modding in then you gotta pay to play.

If you blow your engine allot of times there are other issues at play, but meth is an easy scap goat i guess.

 

The problem is there are alot of economy meth kits on the market. But since V7 patch was added and created for stock ECU I feel meth can be made to be safer and failsafe is and will truely be a failsafe!

 

Actually in theory it doesn't work fine.. There will never be equal distribution of it across all cylinders.. in theory a direct port meth system would be the right way to do it IMO..

Mike

 

I believe that there is an issue when you start using higher quantities of meth. You will get unequal distribution of meth which leads to some cylnders running leaner than others.Number 4 normally gets fried from my experience. The intake manifold is designed for air distribution not fuel.

It probably happens somewhat no matter how much meth you use, but the more meth you use, the more you are going to reduce the fuel delivered by the injectors, so the problem will only get worse.

When you think about it, all of the meth kits are really rudimentary. The thing is we are all too cheap to make it worthwhile for a manufacturer to develop a proper kit.

 

Like this?

Meth, due to it's low surface tension is much better at equal distribution than water is. With the right nozzle and pressure, it atomizes fairly well. Direct port is an extra safety factor in my mind. I swapped to direct port (see photo), but didn't see any +/- over the old two nozzle setup.

 

Unless more E85 stations appear in my area I'm sticking with meth. I love it and will continue to use it. Ok I do have an E85 station 5 min away from my house but what about when Im on the road. Not my cup of tea. More E85 stations and yes I will make the switch.

 

sounds kind of lazy why not just get a map switcher and have one for 93 and one for e85?

 

How many people have got Herpes from sitting on a public toilet seat?

 

Amen brotha. People just don't get it. If you've gotten your setup maxed out to the point that you need meth or alky injection, and can't use conventional ways of increasing the detonation threshold (i.e. race fuels, E85 or even proper water injection), you need to re-think your power goals on your current setup or switch to a setup that can do what you want it to with pump.

If you just don't give a fu*k about your engine, or have really deep pockets, have at it i guess. In that case, why not run nitrous too? Fu*k it, right?

So, you guys have had several experienced and trusted tuners/builders in here saying it's bad(myself included), i suggest you guys take heed.

 

Rock why you got to bust my b@lls? I do all the work to my car except tune. I spent a lot of time on my Meth and failsafe install so I'm sticking with it. I am working on a 93 setup and Meth setup tune so I will be on 93 75% of the time I drive the car. I installed everything on my car and plan on building my motor myself. That's not being lazy.