*engine pics*...when you play with fire...
FormerVendor
Joined: Dec 2001
Posts: 2,444
Likes: 2
From: WWW.SPEEDINC.COM
I thought about running meth in my secondary fuel system, but ended up just using race fuel.
Isn't meth fairly corrosive? From what I've read it's not good to let it sit as it will corrode aluminum components like fuel rails/regulators/fittings/fuel cell, etc.
Isn't meth fairly corrosive? From what I've read it's not good to let it sit as it will corrode aluminum components like fuel rails/regulators/fittings/fuel cell, etc.
you cant have any aluminum at all. i think stainless or the proper flexable lines only.
they make regulators and all that stuff for it and the fuel cell just needs to be plastic. i really dont know about the long term problems you might have with it if you ran it everyday.
they make regulators and all that stuff for it and the fuel cell just needs to be plastic. i really dont know about the long term problems you might have with it if you ran it everyday.
Originally Posted by Frost
Direct port methanol??
Methanol as the second fuel would be interesting. The meth would be hard to tune as a mix. It would also need a fairly large tank (no problem for truck guys!). It would replace the intercooler rather well.
With high octane gas as your second fuel you still need a intercooler. The tank would be much smaller. Tuning would be simple. I will be using staged/gasoline injection next year (2006) in a street driving car to see if its as good as it seems.
Kurt
With high octane gas as your second fuel you still need a intercooler. The tank would be much smaller. Tuning would be simple. I will be using staged/gasoline injection next year (2006) in a street driving car to see if its as good as it seems.
Kurt
Thread Starter
Joined: Nov 2001
Posts: 10,018
Likes: 51
From: Virginia
i would love to spray meth out of an injector, or even maybe a nos nozzle, long as there is a way to test each nozzle from inside the car before you floor it, ive seen too many clogs lately.
the plan is for wheel to wheel and bs3 to send me the 16 injector ls1 intake and the modified injector harness for a christmas/get well present.... they just don't know it yet.
i heard that when you run meth you need to start the engine(or injectors) on gasoline, then switch to meth, then switch back to gasonline before you turn it off, to keep any clogging or corroding from happening in the injectors and pumps.
the plan is for wheel to wheel and bs3 to send me the 16 injector ls1 intake and the modified injector harness for a christmas/get well present.... they just don't know it yet.
i heard that when you run meth you need to start the engine(or injectors) on gasoline, then switch to meth, then switch back to gasonline before you turn it off, to keep any clogging or corroding from happening in the injectors and pumps.
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Verdad Gallardo i dont think it would be too hard to tune. at 130kpa or so just let the pump gas map die off and bring the meth map up right at the same time. by 10psi or so you would be running strait meth. i dont spend hardly any time in the 3-10psi range, just a real quick pass thru. for 1000+hp it might take more than 8 of the 160lb injectors but you could toss a couple in your intake tube and worst case spray a little pump gas in with it.
i dont think you have to do anything special to run meth other than use all of the right materials when you build your fuel system. they have alcohol rated injectors, fuel pumps, regulators, fuel lines, flexable lines, fittings. everything you would need.
i know the meth likes to suck up water out of the air. that might be a concern if you dont drive it very much. the tank size would depend on how much time you spend at high boost. i bet a 10 gallon cell would last quite awhile just playing on the streets and probably a full day at the track too. last thing is meth is cheap. about 1/2 the price of cheap race fuel. ~1/4 the price of what i have to pay for c16 but you do use twice as much of it.
MM, we are talking about using meth as your 2nd staged fuel so the car would be starting on pump gas and runing 99% of the time on the pump gas. just not when you are at high boost.
is there any truth to the rumors that you can't hear the detonation if you are running meth? i dont know anything about it but i dont see why there would be any diference from pump gas. knock is knock i would think.
i dont think you have to do anything special to run meth other than use all of the right materials when you build your fuel system. they have alcohol rated injectors, fuel pumps, regulators, fuel lines, flexable lines, fittings. everything you would need.
i know the meth likes to suck up water out of the air. that might be a concern if you dont drive it very much. the tank size would depend on how much time you spend at high boost. i bet a 10 gallon cell would last quite awhile just playing on the streets and probably a full day at the track too. last thing is meth is cheap. about 1/2 the price of cheap race fuel. ~1/4 the price of what i have to pay for c16 but you do use twice as much of it.
MM, we are talking about using meth as your 2nd staged fuel so the car would be starting on pump gas and runing 99% of the time on the pump gas. just not when you are at high boost.
is there any truth to the rumors that you can't hear the detonation if you are running meth? i dont know anything about it but i dont see why there would be any diference from pump gas. knock is knock i would think.
i was thinking staged gas injection with meth......ahhhhh
if you inject the meth on top of the single plane manafold, wouldnt it distrubute it evenly since its made to do that to the gasoline
if you inject the meth on top of the single plane manafold, wouldnt it distrubute it evenly since its made to do that to the gasoline
TECH Addict
Joined: Jul 2005
Posts: 2,153
Likes: 3
Originally Posted by parish8
is there any truth to the rumors that you can't hear the detonation if you are running meth?
BTW, alot of people are pointing the finger at distribution problems, but that wasn't the case in mine. The A/F ratio went lean across the board for some reason when it blew.
Mike
Mine will probably blow tomorrow but I really like the 93/meth (15,000 miles on this motor). My last 2 times to the track were with no intercoolers even. IATs at the end of a pass were 238 deg (measured before the meth) One thing I have found is my shureflo wont prime after its sit for about 2 days....it is 6" above the tank but is supposed to be able to prime up to 8 feet. i am going to mount it below the tank to take care of this. I had this prob with the first shureflo and replaced it thinking it was a faulty pump. My hobbs switch has also failed that turns on my second fuel pump. I was made aware of this stuff by the warning led on my dynojet wideband commander. i have it set to light up if i am above 4000 rpms and a/f is leaner than 12-1. Since its on my a-pillar gauge pod, you cant miss that led.
David, what nozzles are you using as i havent had a clog...that i know of yet. i have the ones from SMC...m-10 and a m-15 at 170psi!! That shureflow will put out some pressure if you adjust it up. My new SMC pump was only pushing 75psi.
Not anywhere near you guys but last time at the track with no intercoolers, I ran 10.01--10.07--10.06--9.98.......93/meth..........it was 50 degrees outside so of course that wouldnt work in the summer time. I need to look at my plugs to see how they look
David, what nozzles are you using as i havent had a clog...that i know of yet. i have the ones from SMC...m-10 and a m-15 at 170psi!! That shureflow will put out some pressure if you adjust it up. My new SMC pump was only pushing 75psi.
Not anywhere near you guys but last time at the track with no intercoolers, I ran 10.01--10.07--10.06--9.98.......93/meth..........it was 50 degrees outside so of course that wouldnt work in the summer time. I need to look at my plugs to see how they look
Originally Posted by engineermike
My ECM's knock retard was only on 4 deg when I melted a hole in #5, broke #7, and blew both head gaskets.
BTW, alot of people are pointing the finger at distribution problems, but that wasn't the case in mine. The A/F ratio went lean across the board for some reason when it blew.
Mike
BTW, alot of people are pointing the finger at distribution problems, but that wasn't the case in mine. The A/F ratio went lean across the board for some reason when it blew.
Mike
i was thinking staged gas injection with meth......ahhhhh
if you inject the meth on top of the single plane manafold, wouldnt it distrubute it evenly since its made to do that to the gasoline
Yesterday 04:18 PM
if you inject the meth on top of the single plane manafold, wouldnt it distrubute it evenly since its made to do that to the gasoline
Yesterday 04:18 PM
what i like about running the staged gas/meth set up is you can do a complete switch over at any point you like. lets say between 3-6psi you drop the ve map for the pump gas down to 0 and from 3-6psi you bring up the meth ve map and from 6psi up you are on strait meth.
i worry about having more than one fuel system and not knowing if everything is working on them all. if you are spraying some fuel from 2 diferent sources at the same time and one of them fails you are still spraying enough fuel from the one source to melt down your motor. if you have 2 sources but do a complete switch from one to the other and then that 2nd source fails then it will probably just die on you. i am thinking something like a bad fuel pump wich seems to be kind of common for the larger pumps. going full meth would need some big lines and a big pump or two.
TECH Addict
Joined: Jul 2005
Posts: 2,153
Likes: 3
Originally Posted by parish8
not sure what ecm you have but dont most stock ls1 ecm's max out at 4deg of KR. if so your computer was actively pulling all the timing it could.
Thread Starter
Joined: Nov 2001
Posts: 10,018
Likes: 51
From: Virginia
jerry i had been running a 625ml.and a 375ml nozzle and the snow 220psi pump
i forget the time increment or the rated pressure, but the 2 nozzles in theory should be delivering about 100#/hr
not able to verify the pump pressure but it sure seems like a ton of meth when you spray it out in front of you
i forget the time increment or the rated pressure, but the 2 nozzles in theory should be delivering about 100#/hr
not able to verify the pump pressure but it sure seems like a ton of meth when you spray it out in front of you
Hmmm...i have a little gauge on mine right before it tees to the 2 nozzles. I can only see it if i'm sitting still with the hood up and hit the test button. Be nice to have some kind of logic box you could setup where it would cut your motor off if you were lean at a programmed rpm/boost etc.
.......... daydreaming again Jerry? lol just teasin ya.
Originally Posted by cablebandit
Hmmm...i have a little gauge on mine right before it tees to the 2 nozzles. I can only see it if i'm sitting still with the hood up and hit the test button. Be nice to have some kind of logic box you could setup where it would cut your motor off if you were lean at a programmed rpm/boost etc.
