Half Jap Boost Junky

I've done a search and I havn't been able to find the answers I'm looking for. I will be running 94 octaine on the street and am thinking about using C16 at the track.

I've read that the C16 will eventually kill my O2 sensor, but will it cause any other problems. I don't have any cats on my car so I don't have to worry about that anyway. Basically I want to know what is involved with the tuning. I have a Haltech E6K. If I tune the car using C16, will it still run fine on the street when I run 94 using the same map as long as I turn down the boost? Or will I need to tune it for 94 as well? Also, is there an O2 sensor available that will not be effected by the C16 so I don't have to worry about replacing it?

Thanks in advance for the help, I need every edge I can get. Looking to take out my friends bone stock Z06 this June.

eViLRotor

iTrader: (2)

Steve Kan recommends to always tune for the fuel you are running.

Even though air fuel ratio should be more or less the same between fuels (since it is just the number of fuel and air molecules) he said that the specifc gravity is different between C-16 and 94 and so your AFR could be different. I can't elaborate that much, since that is his area of expertise .

Ideally, you would tune for 94 and C-16 separately. Since for each fuel you would want an optimized fuel and timing map.

A comprimise would be to tune for 94. Your map would be way safe for C-16 (which is 117 Octane or so). Then just up the boost (and maybe a little timing) at the track.

I'm not sure about any lead-proof 02 sensors.

Half Jap Boost Junky

I heard that some people actually just remove their O2 sensor once they arrive at the track. The reasoning behind it was that the ECU doesn't read the O2 when you are boosting. Any truth there?

Chris Ng

your o2 sensor with the haltech is used for closed loop .. that's it.. closed loop is used for fuel economy.. you don't need fuel economy when you are on the drag strip.. pull the o2 sensor out, and turn off closed loop on the haltech..