[Chris05STi]

I am getting tuned in June by Doug from TopSpeed over at XX Tuning in CT. I am going with a stock turbo and stock TMIC. I going for the SMC Meth Injection Kit. I was wondering.....should I go for the 100% Straight Meth? Or go for the 50/50 Meth/Water setup? Anyone who is running Meth please feel free to chime in! Anyone have any info, comments...let me know! I was thinking 100% Meth, but I was wondering how much wear/tear it would do on the pistons.....maybe its safer for me to go with the 50/50? Any benifits with 50/50 vs 100%? Prob the 100% will provide more hp/tq right? I use my STi as a daily driver....so I don't want to kill the car 5,000 miles after I get the Meth in! Thanks for any comments/info you guys/gals provide!

[JDM-STI]

I run 100% meth. You do get more power from straight meth over a 50/50 mix.

[ride_the_pony69]

I run straight meth and that is what doug tuned me with when I did it.

[Chris05STi]

How many miles do you guys have with the straight meth?? Any problems in the long run with running straight meth vs 50/50? Since I am on a stock turbo/tmic?

[JDM-STI]

Meth burns cleaner than gas, so I don't see how you would have much to worry about. Just don't run out.

[Chris05STi]

I was talking to someone, and they were saying its almost like NOS on tap...but the thing is...will straight meth burn out my pistons or create any damage in the long run? I just want to be safe and not have it die...lol.

[JDM-STI]

You should talk to your tuner about all of this. No one here has been running meth long enough to really know. Methanol is a fuel additive so I can't see where it could really be harmful in any way to your motor. Just dont run out and try to run the car without it.

[Chris05STi]

I talked to Tray, and he said that most people who run meth run 100%...but they haven't had any problems.....I am just worried, but I am sure with the tune everything will be fine....just wanted to see what other people have done.....

[520]

not to hijack, but when does the meth kick in. Because i run denatured alky and i can run without it (not safe and never do) because it kicks in so high into the rpm band.

[Chris05STi]

Meth kicks in at certain boost levels....thats what I have heard.

[520]

yah same with my alky and smc kit, probably just because of the gt35 spooling later so the boost is higher in the rpm band.

[higB_0x05]

From looking at your mods it seems like you are in the right "stage" of your moddifications to start considering chemical injection. Go for it, cautiously of course.

What are your goals? Do you want to run more boost a better knock threshold? Why not just try plain water first? I dont think enough people are giving water a chance. If you think you need more powah.. then try a mix of water and methanol.

Just my 2 cents but: I dont think people have any business running water/alc/meth injection of any kind if they dont have the ability to switch MAPs on the fly or own the proper instrumentation to monitor things. (wb02, boost, and egt gauges)

I see a dangerous trend here on iwsti. I see far too many "newbs" buying injection kits as if they were just bolting on a new down pipe. Chemical injection is not a "bolt-on" for the novice.

Originally Posted by higB_0x05

From looking at your mods it seems like you are in the right "stage" of your moddifications to start considering chemical injection. Go for it, cautiously of course.

What are your goals? Do you want to run more boost a better knock threshold? Why not just try plain water first? I dont think enough people are giving water a chance. If you think you need more powah.. then try a mix of water and methanol.

Just my 2 cents but: I dont think people have any business running water/alc/meth injection of any kind if they dont have the ability to switch MAPs on the fly or own the proper instrumentation to monitor things. (wb02, boost, and egt gauges)

I see a dangerous trend here on iwsti. I see far too many "newbs" buying injection kits as if they were just bolting on a new down pipe. Chemical injection is not a "bolt-on" for the novice.

I am pretty sure Chris has a Wide Band Hig-B.........can you elaborate on the dangerous trend? I have not heard of a single issue as of yet. People have been using Alchy/Meth injection for quite some time now over @ Nasioc.......have not heard of any issues over there either.


Chris:
If your gonna go thru the trouble, may as well get the most out of it. You would hate to have regrets later on down the road & have to spend the dough to get re-tuned. Don't let the fear monger get to you.

[Ozer]

This question is bugging me, too. Water has more capacity to suck heat from the environment, than methanol, right? If so, then using water would reduce the EGTs, which is a BIG issue high output set-ups like GT30R / GT35R, etc. I asked Christian (from Cobb) about this, and he told me to use full meth if I am trying to shoot for big numbers.

I am a little confused. I am just wondering how is the impact to EGTs of running full meth versus 50/50.

By the way, for those of you who can't find good methanol, you can get it from kemcooil.com, who sells 5 Gallon big barrel of 99.8% pure race grade methanol for $72 shipped anywhere in U.S. It took me 2 hours to find them on the web, and I got my meth from them
http://www.kemcooil.com/product_info.php?pId=54

- Ozer

[91TB78]

My only concern with using 100% meth vs. 50/50 is a fire safety concern. 100% meth burns very easily, whereas the 50/50 mix takes A LOT more to ignite. If you're going for absolute power than 100% meth is the way to go, but get a fire extinguisher!