Don't understand, help please......
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Can you guys, help me understand, How is it possible that I took my car to dyno and I put down 256hp this past Monday, then went back on Friday to dyno tuned my Z with new Iridium spark plugs and the best the tuner could do was 250hp.
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This are the sparks I used;
NGK Iridium one step colder - LFR6AIX-11
also the humidity the day I put down 256 hp the was 10% and the best run the second time around the humidity was 25%. Definitely a big difference in this department. How can I determine, How much hp I gain as a result of the tuned, if the conditions were differenyts. Any idea guys.
NGK Iridium one step colder - LFR6AIX-11
also the humidity the day I put down 256 hp the was 10% and the best run the second time around the humidity was 25%. Definitely a big difference in this department. How can I determine, How much hp I gain as a result of the tuned, if the conditions were differenyts. Any idea guys.
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Is all anyone cares about the goddamn horsepower number? What difference does it make? How does the car feel? What are your 1/4 mile times?
Oh and by the way...
Oh and by the way...
6hp is within the range of error for most dynos. I wouldn't sweat it, since you have error plus all the variables mentioned above.
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As metioned a lot of things to take into account, that humidity difference is pretty big, also do we assume it is on the same dyno?
Unfortunately measuring horsepower is not an exact measurment that can be repeated to the same numbers. Also one step colder plugs are not needed for your application they are normally thought of being needed when you get 200HP over your stock power.
Unfortunately measuring horsepower is not an exact measurment that can be repeated to the same numbers. Also one step colder plugs are not needed for your application they are normally thought of being needed when you get 200HP over your stock power.
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It was done at the same dyno both times. I just wanted a number figure thats all but I'm happy anyways caused the car feels running much better. Thank you guys for all your opinions.
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Originally Posted by westpak
Unfortunately measuring horsepower is not an exact measurment that can be repeated to the same numbers.
I wouldnt worry about it.
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