eman930

Is anyone running meth injection on their 951? I did a search but didn't find much, anyone know if it will benefit? Or is it a waste of time unless your running big Psi?

DannyLaQc

Yep I use the Devilsown stage1 kit with the 5GPM nozzle.
This is the basic "how it works"
https://www.youtube.com/watch?v=HkPFZWd8wj4

Now you have no real benefist if you don't crank the boost and/or timing.
When I bought my car it was already tuned for 23psi without meth and running on premium fuel 93.
Don't ask me why but it works short run. Afther reading that 23psi was unusual I installed this for detonation protection. In Quebec E85 fuel is not available so meth injection is a good choice high boost street car.

eman930

So when tuning howdo you know how much meth to mix in?

Paulyy

you cant just add meth/water with out changing the timing.

Do you have E85 local to you? if you do.. i recommend to use that.

eman930

Why do you need to change timing, Meth allows you to advance timing for more power without knock but from what I understand you dont have to to run meth, But you can turn up the boost

Paulyy

well you are changing the blend of fuel going into the cylinders.

IMO meth/water injection is like a bandaid way of making more power, you need to keep filling it up and more things to rely on.

There are some good meth injection systems out there but i would rather spend the money on engine work such as turbos or head work to increase the VE and have a better breathing engine then dump water or meth to keep it cool.

alxdgr8

Sure it can be a band-aid if not done properly (ie. a level sensor that will switch between tunes depending on if you have meth or not; and to actually tune for meth). But, even done in the simplest form, it can help and work quite effectively and safely. I ran water/meth on a turbo Ford Escort (1.9 SOHC) that I daily drove. Without meth I could only muster out 10psi (~160whp/200wtq) on a GT28RS before I got knowck, with meth (and no additional tuning except MBC), I was able to run 17psi (~220whp/280wtq). Daily drove this for two years with no problems. Meth was triggered with a hobbs switch at 7psi.

Results may vary, and I personally probably wouldn't use a setup like that on my 951 engine. But I do still have the setup and will probably install some kind of more advanced system on the 951.

Just kinda depends on the car and how far you want to push things! 951's can be a bit finnicky on the edge of the envelope and expensive to repair if you break something.

Paulyy

I do agree with what you said, If i were to use a meth injection, i'd want it to work off a standalone all in 1 computer. So the computer itself knows what is really going on, not just adjusting or something it's not sure of.

944V8inDFW

Shouldnt someone call Walter White on this subject?

TurboTommy

Pauly;
totally agree that to make power, all the hardware to flow more air into the engine needs to be addressed.
And, any additional injection shouldn't be used as a bandaid to cover up a bad engineered system.
But, eventually you run into knock limit when/if you turn up the boost. You could use race gas; but unless it's a dedicated track car your whole life will evolve around your race gas supply. WI takes care of all that; you can practically drive anywhere you want and have knock-free, high boost performance available.
(And, if you use WI, you'd be an enthusiast, and you would think to check your fluid levels)
The trick is to set it up right; fine mist if possible, proper injector location for your application, fluid blends and injection quantity.
But, if I had e85 all around me, I might opt for that. But I would take maximum advantage and inject it in a few places; not just at the intake ports.

333pg333

^^^^^ SPAM ALERT ^^^^^

Paulyy

NO WAY?

Paulyy

You can always snort or smoke it instead of injecting?

eman930

Idk why everyone is so negitive about meth injection, People have been using it for years, Just like everything else if its done wrong or used to cover up some other issue then yes its not a good idea, But when used properly, I think it would help our cars alot, and for $300-350 with a boost setting, I dont see why not, Its cheap insurance against knock, and gives you the ability to boost 20-23psi, Odviously youd want supporting mods, like MAF, Exhaust, Wastegate, chips, fueling. But Id rather take that approch then cutting up the front of my ride to run some Massive intercooler.

Paulyy

my view: more electronics you start to add, something is bound to go wrong. The only time i'd put meth is if it's incorporated in the standalone.