Damn pos G1. Won't let me edit it either from here.

 

Yea running 100% meth you would see a bit cooler charge temperatures because it evaporates so fast, creating a refrigeration effect. . But it won't allow you to run much more timing or boost over 93 octane compared to 50% mix. Methanol burns cooler than gasoline sure, but the amount injected won't change much unless you have a direct port setup ( because it is so volatile ). Binding it with water is what helps the meth make it to the combustion chamber without evaporating. This isnt my opinion , it has been proven (since the '70s).
Maybe you aren't running much boost to push the limitations of 93 octane? That is the only way I could ever see 100% meth making more power @ mbt is on a low boost setup, because it doesn't suppress detonation.. just cools the charge. Rally guys run 100% , but with race gas ( just using injection to cool the charge).

 

Again im sorry but you are wrong. Go hop on the GN forum since those guys have been running meth and water injection for a long time. 35psi on a SC61 on Pump 93 with dual M15's and 100% meth says different. And my current setup spiking 30psi (as high as gm 3bar map can read) on 16g turbo making 388ft/lb of tq and 385awhp on a dynojet, on a sidemount intercooler and seeing 44lbs/min out of a turbo thats rated at roughly 360cfm id say its doing its job. Its not all about the cooling properties of the methanol. Its about the methanol thats not being evaporated being used as a supplemental fuel. Allowing for more timing. Enough to where the timing ends up very close to where the car would be in straight C16. Also the fuel system on the car tells the same story, where IDC's of the 560's were at 80% with a base FP of 43psi. Do the math and see how much HP that amount of fuel is good for. My math says roughly 310hp. Thats not enough!

Does water work? Yes. Does washer fluid work? Yes. Does straight Methanol beat out both when looking for max hp and high boost? YES.

Tell you what, I'll give you a couple of gallons to prove my point. But theres a few conditions. I dont know you, so dont take this wrong, but if your car is some shit box with ghetto mods dont waste either of our times. You must have the ability to currently log your car and have an injection setup that is compatible with 100% methanol. Most systems arent. If yours isnt I have a spare alky control setup we could possibly use depending on how determined you are to do this. Your logging software must be able to log injector duty cycle, timing adv, knock, boost, Iat, and preferably AFR, and you must also have the ability to tune your car. Fuel and timing tables of course.

 

Yea Im at pretty much the same boost, same map sensor( not that it matters ). I run a Haltec for engine management, so datalogging isn't an issue. I guess everyone has their own opinion, and that is fine because otherwise everyone would have the same shit (which would be boring). So if you believe in your find, more power to you.
I am not one who cruises forums to see what people say is best, I like to find out on the dyno myself.. Example (like how you said 560cc injectors @80 %duty max out at 310hp with a 1:1 fpr).. We have tuned cars on a lower reading dyno past 340whp (380whp dynojet) with a returnless fuel system 40psi preset fuel pressure without meth on 550cc injectors. I also read published literature where that kinda data has been explored .
My own car wouldn't be where it is today if I believed and listened to what people had to say online. If you want to compare setups, in a way im in the same boat.... small turbo rated at 250hp, yet I trap over 120mph with windshield washer fluid .Our other car which isnt remotely set up for the 1/4, trapped at 134mph running windshield washer fluid.
I would take you up on your theory, but Im not gonna go that far out of my way to prove you are right or wrong. I am gonna dabble around with e85 now anyways , so fighting detonation on 93 will be a thing of the past.
Cheers

 

If i went by what all the forums said id be running some sort of water mixture since thats whats preached by many since most meth injection systems cant handle 100% meth. Im a firm believer like yourself in dyno results and more importantly track times and mph. Datalogging, and comparing logs in the end really tells the story.

Unless you were jacking fuel pressure up or running another octane of fuel, fuel delivery is fuel delivery. I honestly find it hard to believe you made 380whp on 550's without running race fuel, jacking up base fuel pressure (or a non 1:1 rate fpr). Even at 100%DC im pretty sure they wont support that kind of horsepower. This is assuming only 4 injectors are being used. Even with only calculating a 10% drivetrain loss thats over 410hp worth of fuel. Just dont see it happening.

Like you, my car wouldnt be where it is, if i followed the norm, and listened to all the misinformation on the net. I love to know more about your car setup. If E85 was easily available out here in BFE id be going that route as well. More power to ya! I've always wanted to try E85 and meth and see where things go. Pushing a small turbo as hard as we both apparently we are, i think injection will still be needed to cool the intake charge but not as much will be needed due to the nature of E85.

 

Excellent thread sirs. Ive been researching meth injection, and up to this point I had been confused on a few points. Im considering a srt4 weekend/track car. Ill be PM'ing you both in the near future for advice.

 

Just saw for free Methanol (Warrenton, Va.)

http://washingtondc.craigslist.org/n...547227564.html