bstudey01

Are you guys that run the Q16 leaded race fuel replacing O2 sensors all the time? Thinking about a tune for this but don't really want to be replacing 4 O2 sensors after every trip to the track, plus a 5th for my wideband. Looking at MS109 unleaded as an alternative. Can anybody chime in on the Q16 and how quickly it wrecks the 02's, I don't have cat's so that is not a problem. Also if anybody has run both fuels and can give a performance comparison between the two.

e55amgrocket

Stick with the 109. Q16 is hard on the sensors and doesn't like high IAT's at all.

black06c230

Go with a meth kit. Lower IATs, more power, and cheaper per gallon.

RedBullJnky

This^^^^

I have a 93oct tune and a Q16 tune.

e55amgrocket

VP Import is the best way to go for max power but its $$$$$$$

adianaty

Try the shell urt advanced. It's unleaded and 110 octane and almost the same price as ms109. Best part it runs 14.7 stoich.

bstudey01

What is altered in the tune when they tune for Q16? I assume leaning out AFR's a bit at WOT and advancing time due to the higher octane and less chance of detonation/preignition? The same could be done with the MS109 correct? I ran the vp101 last time at the track and didn't notice any difference but tune was still the same. I Did have a gallon or two of 93 in the tank at the time and put a gallon of the VP101 in. Are you guys running the car completely empty of 93oct before putting the Q16 in and changing tunes?