Leaderboard

Registered user is 100% right. So many variables and a lot of testing that you'll need to do on your specific application. Number one, It will take a LOT more fuel to keep from burning it down. Guzzler, Opened vents, big bowls etc. Don't get greedy when your testing, Baby steps as you go - I use Digitrons and do plug reads to monitor my passes. ***Even so you'll likely eat a piston or two during your learning curve. As for plugs - Most Banshees running gas use BR8 NGK's - On alcohol BR9's which is a colder plug are pretty much the standard. I use bored 39 PWKS and 41 Pro's (both the same bore size) in my 1/4 mile asphalt motors. The mains and dump tubes are drilled to .120 plus they have power jets. Pilots are as small as I can get away with (50 or 52 I believe) If you go to small you'll get lean hangs at best and at worst it'll rev to the moon at startup. As posted earlier, Alcohol generally requires a different dome configuration and additional timing. Now let's throw a wrench in it all - My son (Banshee) and grandson (Apex) run 2 -300 ft dirt drags and the fuel requirements are very different. Smaller mains/dumps and very little or no power jets needed depending on distance and track bite. Oil - I used to run 32:1 Blendzall but switched to 927. You'll have to do your own research to verify your oil choice is methanol compatible. I think mixing at 20:1 is fine. On a side note. I live in the Northeast. I liked Klotz Super Techniplate in gas motors for years but it's hygroscopic and did ugly things to the inside of our alcohol motors even with very good purging practices. Hope this helps