100 Octane is the Shiznit!!!
Holy whack! Krazik is right 
Seriously, higher octane will not make more power. But, it's a big butt, it will help the engine in other ways. It has detergents in the fuel that clean up deposits and it burns a lot cleaner.
I ran 110 at the last track event and driving on the street later, I noticed a MUCH smoother idle. My guess is that it cleaned up deposits on the spark plugs.
It would be interesting to do a scientific comaro between pump gas and race gas on the dyno.

Seriously, higher octane will not make more power. But, it's a big butt, it will help the engine in other ways. It has detergents in the fuel that clean up deposits and it burns a lot cleaner.
I ran 110 at the last track event and driving on the street later, I noticed a MUCH smoother idle. My guess is that it cleaned up deposits on the spark plugs.
It would be interesting to do a scientific comaro between pump gas and race gas on the dyno.
Its my understanding that a stock S2K already pulls timing out due to the knock sensor while running 91/92 octane gas during everyday driving. If that's indeed true then it makes sense that 100 octane could provide more power by allowing the ECU to advance timing. A simple way to check that would be to hook up an OBDII scan tool and monitor the Spark Advance while running both grades back to back.
there is a local exxon station by my house. i love near weston FL which is where a lot big name people live football players so on. so they all have a lot of nice cars. they sell 107oct. i have some extra money to burn. i'll try some out see what i think. i am running higher compression though.
Originally posted by XconZ
The wet ground probably helped you spin your tires shifting into 2nd.
The wet ground probably helped you spin your tires shifting into 2nd.
Cool air will bring more power; at times, when it rains, cool air is brought in.
Originally posted by lanbrown
I can chirp the tires going into second on an 80-degree day; that is with 92 octane.
Cool air will bring more power; at times, when it rains, cool air is brought in.
I can chirp the tires going into second on an 80-degree day; that is with 92 octane.
Cool air will bring more power; at times, when it rains, cool air is brought in.




