Quote:
Originally Posted by chowser51
what's the math for logs and draggy to determine HP? I never understood this.
I have a B46 (US version of B48) xdrive with BM3 stage 1 93 and on the Mustang dyno, it shows 233whp which is about a 20hp increase over stock. Haven't found a local non Mustang dyno to try.
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I share your skepticism. I have heard of a rough correlation between an increase in MAF sensor readings and horsepower gains. But doubtful that numbers could be used to make tune judgments.
But how could draggy numbers correlate to horsepower? Too many variables like tires, temperature, road surface, etc. If a time changes by 0.1 or 0.2 seconds, it could be caused by almost anything and wouldn't correlate to a specific amount of horsepower gained.