I did an os swap on my 2007 Tahoe to a 2009 and was able to get things I needed with more range and was hoping someone has touched on this with the 2009 ctsv and it?s 85 lbs/min range on the maf. This car is on 25 psi with the Kenny bell and seeing upwards of 13,000 hz on a 5 inch maf but the 85/86 lbs limit is obviously a problem. I do believe the 2012 zl1 has much more range so was wondering if anyone has gone to a new 12 ecm or just wrote the 12 os and used it in a 2009 ctsv. This thing has 1800cc injectors on full e85 it?s a beast and really don?t want to just do a sd tune on it and like to keep the maf if possible. I know tune scaling is an option but one thing I?m not very familiar with as I?m doing a lot more late model stuff now or simpler combos on the earlier stuff.
Thanks for help
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