Upgrade LS3 MAF to LS7 card style E38

[ngc1068]

Hi, Search must not be my friend today.

I've got a '16 Chevy SS, LS3, Whipple, TSP Stage 3 CAM, E85, around 10psi... its approaching 700WHP and I'm still running the stock LS3 MAF, airbox and a K&N Drop in that came with the Whipple.

I purchased a new 4.5" Synergy intake, it has the LS7 card style MAF.

Can anyone help me out with a good base MAF vs Freq table to get me started? I believe I can handle fine tuning of it.

I've lookked through the repository at some 2008/9 LS7 corvette files, but the actual MAF range in these LS7 files look smaller than my file, plus they have high and low tables, even when i put them together in Excel the range just looks completely different (and smaller) than mine.

I had thought about failing the MAF and running in SD to let me log actual measured MAF freq at various airflows as a way to build a table, but not sure if that would work, the car was calibrated and running well in both MAF and SD before I started with the Synergy install.

I've attached my current calibration.

2016 Chevy SS M6_6.2L_Whipple 2.9L 3 bar 231-239-115 ID1050x wFlexFuel.hpt


Thank you!

[ngc1068]

cancel request, i looked up the new LS7 MAF's p/n on internet, found it was used in the '15 Camaro with 6.2L so i got a curve from the repository off a posted stock '15 Camaro... idles well, super lean, but trims controlled it, so I can start logging data and adjust the MAF now... thanks anyway!

[Ben Charles]

MAF tube size is the trick... larger tune the MAF values need to be increased basically

[02Ls1]

MAF tube size is the trick... larger tune the MAF values need to be increased basically

Ben I was about to look and search about this mod, using the ls7 MAF. Using this ls7 MAF in a 2008 tbss or a truck e38 ecm it?s like we have to start a new maf curve, tune the MAF?

[Ben Charles]

Yea ls7 works great on Trailblazer!! Add 25-30% and will get it close and dial in the MAF