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Discussion Starter #1
So I have been running a Devil's own basic kit for over a year now, with no problems. I opted to not get a controller and use a HOBS switch to keep it simple and not add something else to the mix that could cause problems.
I have read lots of people complaining of various controller issues keeping their systems from working, or worse off, keeping the system activated and spraying or dripping in the motor when it should not be activated, so that deterred me .

I am at a point now that I would like to take the methanol thing a little more seriously and figure out a fail safe in some fashion that tells me more than just does the pump have power. Furthermore, my car is OBD1, stock ignition, supercharged and tuned on an SCT4bank chip. So even if I find something that will pull signal from something if the pump went dead, or clog in line or whatever, how could I make it pull boost or timing? With turbocharged cars and obd2 and aftermarket ignitions this is all much easier I assume. lol

Any suggestions that you guys have found works safely that you trust your engine with incase of some sort of anomoly that causes the system to not spray when leaning on it hard?
 

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Could use your IAT sensor to add and retard timing.
Where is yours located? Mines still in the lower intake so it does get heat soaked, something to think about.
 

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Discussion Starter #3
Could use your IAT sensor to add and retard timing.
Where is yours located? Mines still in the lower intake so it does get heat soaked, something to think about.
Mine is on the discharge tube currently. (94-95 car) .The tune is set to pull timing if the IAT shoots up right now, but not sure I want that to be my only fail safe and not sure how quick that happens incase of failure.
Also I would like a visual that it is not working. I would have no way of knowing its pulling timing due to heat other than the buttometer which is not all that accurate all the time.
 

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Uhmm, maybe a low pressure switch to a indicator light could work and have it only powered when your pump would be powered.
 

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Are you concerned if the engine runs lean due to pump or ? failure? I use a Lean Protection Module from MD Racing that monitors for a lean condition then shuts down the ignition. I have his Dual Wideband kit on my car. This not only works if my meth goes lean but also a fuel pump, injector, etc..

MD Racing

I also went farther and installed a Safeguard Knock Detector that pulls timing if it hears knock.
http://www.jandssafeguard.com/

When running pump gas and meth injection I feel these two items are mandatory.

ks
 

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Discussion Starter #8
Are you concerned if the engine runs lean due to pump or ? failure? I use a Lean Protection Module from MD Racing that monitors for a lean condition then shuts down the ignition. I have his Dual Wideband kit on my car. This not only works if my meth goes lean but also a fuel pump, injector, etc..

MD Racing

I also went farther and installed a Safeguard Knock Detector that pulls timing if it hears knock.
J&S Electronics SafeGuard Indivdual Cylinder Knock Control

When running pump gas and meth injection I feel these two items are mandatory.

ks
I don't think I am as much concerned with leanness as I am with timing to be honest. I dont think my car has a ton of enrichment with the meth, but it did restore quite a bit of timing. I just think it would be a wise idea to add something more than the IAT safety net. I have heard of the J and S I believe from back in the day with nitrous stuff. I will check the other thing you mentioned. Both can be very useful though. I appreciate the advise

i have one of these new in the box unopened that i can make you a good deal on...

https://www.snowperformance.net/Snow-Performance-Safe-Injection-Unit-p/30020.htm

when i finally installed my meth kit my computer has built in meth control / safety measures so i don't need it
not sure this will fit the bill. These are one of the units I have heard the most issues with to be honest. How much though?
 

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Discussion Starter #9
your only option is a flow switch
I have only ever found one from Aquamist and I dont think they sell seperate. I talked to Coolingmist yesterday and he said they have downsides too and stopped using them.
Do you personally run meth that you can provide personal experience on?
 

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I have only ever found one from Aquamist and I dont think they sell seperate. I talked to Coolingmist yesterday and he said they have downsides too and stopped using them.
Do you personally run meth that you can provide personal experience on?
I don't run meth

But I use flow switches all the time in what I do.

I say flow switch is the only way, but I would use a current relay, but that might not on people's radar.

Anyhow, what the task is here, to verify flow, no flow = no meth=no aggressive engine.......this is the easiest and most reliable

Let me google some flow switches for ya, and will update you.
 

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Discussion Starter #12
I don't run meth

But I use flow switches all the time in what I do.

I say flow switch is the only way, but I would use a current relay, but that might not on people's radar.

Anyhow, what the task is here, to verify flow, no flow = no meth=no aggressive engine.......this is the easiest and most reliable

Let me google some flow switches for ya, and will update you.
thanks, I will check the links out you posted. I know when I asked the Coolingmist guy yesterday how his triggers electronically that he said it works better than a flow sensor and sounds like it is current/resistance based that triggers the events to the box to then trigger the ground point to shut whatever off. Now from there I need to determine what I want it to shut off or cut.
 

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Discussion Starter #14
It seems the SCT has the ability to switch tunes on the fly

you could use that feature, maybe?
that actually brings an interesting point. I can switch maps to my non meth maps with my switch. I may need to get creative with how to do that, however not sure how fast that will be opposed to having my IAT sensor currently as my failsafe.
 

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well then

I don't know its circuit design, but I am sure the sct must have a programmable input....

otherwise, you could use the IAT-flow switch in parallel as the input, and having the flow switch short the IAT, causing the sct to see the IAT at its max temp
 

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I don't think I am as much concerned with leanness as I am with timing to be honest. I dont think my car has a ton of enrichment with the meth, but it did restore quite a bit of timing. I just think it would be a wise idea to add something more than the IAT safety net. I have heard of the J and S I believe from back in the day with nitrous stuff. I will check the other thing you mentioned. Both can be very useful though. I appreciate the advise



not sure this will fit the bill. These are one of the units I have heard the most issues with to be honest. How much though?
100 bucks its yours
 

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WOW, you are making this way to complicated. You need something that will measure fluid flow.........period.

Never heard of any issues with Safe Injection unless the installation instructions weren't followed or typical owner error. Snow Performance's competitors will never agree on what's best unless it's something they sell. There's a reason why Snow Performance out sells all other water/methanol companies combined it's because they continually do the R&D on their product line while the others do not. They all play follow the leader and the leader is Snow Performance......period.

I've been running water/methanol injection probably longer than most. I do use a progressive controller along with Safe Injection and have NEVER had an issue. Personally, I don't care what you use or run but if you can install Safe Injection onto your setup I would. It's simple to install, easy to use and it works.

Good luck
Michael Plummer
 

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Discussion Starter #18
WOW, you are making this way to complicated. You need something that will measure fluid flow.........period.

Never heard of any issues with Safe Injection unless the installation instructions weren't followed or typical owner error. Snow Performance's competitors will never agree on what's best unless it's something they sell. There's a reason why Snow Performance out sells all other water/methanol companies combined it's because they continually do the R&D on their product line while the others do not. They all play follow the leader and the leader is Snow Performance......period.

I've been running water/methanol injection probably longer than most. I do use a progressive controller along with Safe Injection and have NEVER had an issue. Personally, I don't care what you use or run but if you can install Safe Injection onto your setup I would. It's simple to install, easy to use and it works.

Good luck
Michael Plummer

@Michael Plummer,
I did not realize the snow kit used a flow sensor like that. I haven't looked all that deep into them as I read issues with a bunch of progressive controllers and theirs was top of the list if I recall of issues.
So if I did theirs, I would need the solenoid also to cut boost correct? Would you suggest that as a better way to do this since my iat should already cut timing in the maps?
Can I do everything for the box that I need to do? Or is the progressive controller worth the added abilities? I guess I would need that also to get rid of he Hons switch I have?
 

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Discussion Starter #19
Actually, maybe it was the progressive controllers I was thinking about with the reliability issues. I think I was confusing them with fsilsafes thinking they were a single unit
 

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Actually, maybe it was the progressive controllers I was thinking about with the reliability issues. I think I was confusing them with fsilsafes thinking they were a single unit
A looong time ago, the Snow Performance controllers were designed by Dan Labonte. Those controllers had issues and Snow Performance did a recall on all of those units (An industry first for an aftermarket part). The current stage 2 controllers from Snow Performance are better in terms of repeatability but they are not as good as the Snow Performance Stage 3 controller. Does it mean the Stage 2 controller are junk? No, they are fine to use and I would use one if I didn't have the Stage 3 controller. As far as the competition's progressive controllers are concern, I haven't tested one in a while but they look to be the same units from back in the day. So you can always do your own testing on a test bench if you have one. When testing a controller you have to decide what's best for you, accuracy or repeatability. The Stage 3 controller from Snow Performance had a high degree of accuracy and repeatability over the others but that was testing that was done over 4 or 5 years ago.
 
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