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The wide band is going to possibly become a new found tuning friend and answer some major questions for ya............

the wide band sucks for racing imo, I bought a complete FAST set up for my E85. set it exactly what was called for. even put the car on a chassis dyno and let him hook his up. he told me it was perfect. got to the track and it was .15 slower, jetted down 2 sizes and picked right back up. so I am not sold on wide band for racing, thats why I asked for some kind of credible info from people who have tuned with one in relationship to racing and being consistent. the last time this subject came up



Tony... a wide band doent tell you max MPH.. you have
to play to find that... once you find that point you
have a reference point to get back to.. thats why
I use my AFR for mid/cruise only... but once I get
the best points then I write down those numbers for
thos conditions(temp, load,timing, fuel).. change
ANY ONE POINT then I have to find new numbers