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Thread: 2 bar tune, use maf for iat?

  1. #1

    2 bar tune, use maf for iat?

    I have a c5 vette, 2002 with a ls7 maf. I'm thinking about going with a 2bar map since my maf maxes out around 5k rpm.
    If I do the 2bar conversion, can I leave my maf alone to read the iat still?

  2. #2
    Tuning Addict 5FDP's Avatar
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    You can leave it in the intake tube if you want, just fail the MAF and it'll still use the air temp sensor like normal.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
    Are you running boost? If not, I'd look at the 1bar SD enhancement before going 2bar and losing resolution. I would leave the MAF functional to its limit, just tune your VE for when the MAF maxes out. That way you get MAF under normal circumstances, and SD at high rpm. Doing the 2bar enhancement loses half of the resolution.

  4. #4
    I'm running 11psi boost.
    Thanks 5FDP for a clear answer