Join Date: Nov 2008
Location: Morgan Hill, CA, USA
I Ride: Cafe Racer, Commuter, a Dirty one, and a Land Speed Racer.
The highest I've seen around here is 91, but that's the people's republic of california and they're afraid to let people have any fun. I forget what it was back east but I think they had 93 at most stations.
I had a hot rod magazine a while ago that had a big long article about bumping up compression through various methods like stroke and thinner head gaskets and domed pistons; they had a formula to figure out what octane you'd need to run...I ran the numbers and it said that my Tacoma would knock at about 5 lbs of boost when running on 91, so I got in the truck and tested it out, and it was pretty accurate. I don't remember the formula to figure out compression ratio vs octane, and have since misplaced that magazine, but I'm sure someone could find it with a bit of googling.
Setp one: Obtain 5-8 squares of clean, dry toilet paper.
Setp two: some prefer to neatly fold while others prefer the "wad" technique, but you need to condense the squares into a thicker unit of TP.
...do I really need to continue?