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      09-04-2019, 05:56 PM   #16
Pray for Mojo
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Drives: 2014 M235i & 2018 X3 M40i
Join Date: Apr 2014
Location: Calgary

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Quote:
Originally Posted by Anthony1s View Post
Can you give me a quick rundown on how to read the MAF sensor? What to look for, what's good/bad, what I'm looking at, etc. Mine starts around 23 and goes up to 36 as rpm climbs.
The higher the number the more power you're making. You can use it as an indication of HP at the crank, roughly 10hp per lb/min is the rule of thumb. Judging by your logs you could use the pure inlet, my car only makes 14psi due to altitude but I'm hitting 40-41lbs/min on Stage 2 91. I'm not sure what the range is on the stock MAF, I've seen pure turbo logs not making many more lbs/min, it might cap at a certain number because it can't read beyond that range.
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