nevets27 Posted November 12, 2020 Share Posted November 12, 2020 (edited) So I decided to through some methanol in my fuel tank. 4 Liters into a full tank to be exact. Highest octane around here is 94, which is only available from one fuel company. So I run 91. Anytime I turned on logging I would get a lot of knock alerts so I figured I could use some more octane. But since its not convenient to get my hands anything above 91, I started to think about meth injection. After a bit of googling, seems like running meth on NA, while not that common and not as big of a gain as with forced induction, it can provide some benefits. This comment from Matt was encouraging also http://forum.liberty.asn.au/viewtopic.php?f=16&t=17684#p248290 Meth injection would assist with making some power on the EZ30 which has a lot of knock from factory, I would even say meth on a stock tune would make some decent gains Now I haven't done actual meth injection, yet. It was suggested to me to try with just adding meth to the fuel to see what effect it would have. With the hope it would help with knock. Which it doesn't look like it has. This is the the data I have thus far. Not exact sure what it all means but here it is. Open to taking any info or advice. Hopefully if anyone else is curious this will provide some answers. Knock events before meth https://pastebin.com/g4XH2Efx Knock events after meth https://pastebin.com/Wskm5n5H I have logs too.. First Drive After about an hour drive (70km) on meth, just normal driving Just before adding any meth Edited November 12, 2020 by nevets27 Link to comment Share on other sites More sharing options...
dgoodhue Posted November 12, 2020 Share Posted November 12, 2020 I used methanol injection on a turbo vehicle, I suspect it could work on a N/A motor. It should lower you intake temps down as well. The one issue I see is that methanol is a fuel. I had to remove 10-12% in fuel table at WOT when it is pumping. My engine ran slower when I just installed the methanol without adjusting the fueling in the ECM. Link to comment Share on other sites More sharing options...
m sprank Posted November 10, 2022 Share Posted November 10, 2022 (edited) For anyone who reads this posting the car is in limp mode. Do not play with meth until you get enough octane into the tank to keep your IAM to 1.0. Once your at 1.0, dont add meth to the tank. SMH. For an N/A car the gains from meth injection would be minimal. The risk of damage would be high. Playing with meth adds a lot of complexity and additional failsafes to your system. There is a very high potential for leaks, clogged sprayers, etc. I am not a fan. Edited November 10, 2022 by m sprank Link to comment Share on other sites More sharing options...
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