Draw through setup??

[Jimvr4]

The physics of the cross sectional area cannot be disputed however it is also a fact that EVOs make a ton of power through those Mafs. My personal experience is a gain of around 30-50whp in moving from stock maf to a 399 evo maf depending on whether I run a 91 octane map or a 100 octane map. That said, I've had the 3.75 + MAF-T kit for some time now and ready to drop it in along with Oohnoo's large SMIC. Both stock and Evo mafs are significant restrictions above 450whp.

[iGT]

So just to let you know,
Two days ago I switched from the stock to the EVO Maf. Just with the intake adjustments on Chrome I did not notice any difference. If any, the spool up is maybe a little slower now, but this is just my personal feeling, I have no log data for that. Other than that the car runs the same as with the stock MAF.

[Jimvr4]

Assuming you calibrated it correctly in Chrome you wouldn't notice a difference right away. The difference is seen only when the car is pushed to the knock limit. I was able to push 30-50 whp further with the Evo maf. You would have to increase your boost or timing to see the difference.

[KeithMac]

I can see your point that the more accurate flow metering of the 8 maf can allow more accurate ignition maps (on the limit of knock).

For me, running 2 bar of boost in blowthrough the restriction would outweigh any gain really.

I love the idea of the Karman Hz Maf and if there was a way to make 2 work (1 per turbo inlet) I would deffinitely try it (looked long and hard at combining 2 signals but came to a dead end).

Look at the 300zx and GTR, 2 mafs..