Quote (FMX_89 @ Jul 15 2014 07:50am)
Here we go, in order.
Meth injection is there to decrease IAT, not EGT. If Meth is decreasing your EGT's that much it means you are running LEAN before the meth comes into the picture. Your fuel system is not up to the task, you have the boost turned up too high, or you have a bad tune. You should never tune A/F with the meth spraying. The meth is supposed to be a safety net. Once you compensate for it's presence you have taken that safety net away. If the meth runs out or the pump doesn't come on you are fucked. Royally fucked...
The first sentence of the second paragraph... I don't know what to say. If you are implying that building a liquid oxygen powered engine for your hoopdee is even possible you need to go back down to your social services office and get your disability re-qualified for insanity instead of injury.
50/50 water/meth actually works better at preventing detonation and costs exactly half as much. M1 is ~$5/gal. If you were running 93 octane at ~$.20/gal more and used less meth it would probably be cheaper.
my fuel system is up to the task. i got the mopar performance +40% injectors, walbro 255, and an accufab adjustable fuel pressure regulator. I can get more then enough fuel into the motor if needed but why when i have meth available?. Yes when you inject methanol it decreases iat's (which is why my entire intake manifold turns to frost after a wot run) but the atomized methanol, like gasoline, when in contact with the cylinder walls, has a significant cooling effect. and with running as much as i do, and it being as such, burns "cold".
The nifty thing about methanol is that is will almost never missfire or foul even with a very rich mixture hence why if you dump a lot in, or run purely on methanol, you can run it rich for maximum cooling when the boost or compression is extremely high. That and methanol burn rate is much faster then that of gasoline, and that helps significantly at higher rpms/wot when there is less time for combustion..which, is why when i get up to 30+ psi of boost, im running 6k+ rpms so a cooler, faster burn is needed for stability and reliability..
Hence why i have a progressive methanol injection setup, so as the boost increases, and in turn more rpm, i got to pump in more meth to keep everything balanced.. Pure methanol injection is a godsend when you beat the piss out of a vehicle as much as i do and run the ridiculously high boost levels that i do.
Id never build another forced induction setup without progressive meth injection in it.. Ive put 5k miles of severe beating on this build and it just keeps going. Water and oil temp rarely get halfway to normal operating range, it just runs cold in general. Running the setup i do have never given me as much peace of mind as any other setup ive done on the car. I can beat the shit out of that car all day and never once have to worry about engine failure. The internals are overbuilt for what i put it through and it runs flawlessly in general.