What's the +/- differential on dyno hp #'s?

[TulBusa]

I am getting ready to install my DBE/Hindle Gen III, PCIIIR, Pair valve mod, and air box mod. I want to dyno the bike now, stock, and then dyno it after my install to see what hp/tq increase. How much differential, when assuming just weather change, is experienced on the dyno? Thanks!

 

[Johnnycheese]

I am getting ready to install my DBE/Hindle Gen III, PCIIIR, Pair valve mod, and air box mod.  I want to dyno the bike now, stock, and then dyno it after my install to see what hp/tq increase.  How much differential, when assuming just weather change, is experienced on the dyno?  Thanks!

if you want real numbers just get them uncorrected and then have the following,
Temp altitude, humidity, and sea level. and correct it yourself.

on some bikes the stay on the dynp so the have not changedwhere they are on the drum or how tight they were tighten down.
but if it is the same machine and operateor and the wheel location and air pressure in the tire are the same, the most you will be off is less than 1
because most dynos have weather stations to correct for the weather



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