helio lucas

~SPONSOR~
Jun 20, 2007
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they both put between 40 and 45, depending what you give them for breakfast.
more than enough to be competitive in most racing mx disciplines. and to rip my arms off.
 

adam728

Member
Aug 16, 2004
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It's from 2004, but here's a RM250 making ~46 hp.
141_0312_250_32_z.jpg


Just about the same for a 2008 300 XC
http://www.pbase.com/jdjetting1/image/85421162

Hard to compare apples to apples though, as different dyno's will give different results, and we also don't know if temp/humidity/elevation corrections were made.
 

D Lafleur

LIFETIME SPONSOR
Dec 11, 2001
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adam728 said:
It's from 2004, but here's a RM250 making ~46 hp.
141_0312_250_32_z.jpg


Just about the same for a 2008 300 XC
http://www.pbase.com/jdjetting1/image/85421162

Hard to compare apples to apples though, as different dyno's will give different results, and we also don't know if temp/humidity/elevation corrections were made.

Remember that this chart was with probably fairly new engines that were running right.

For either of those two bikes the correct answer is "more than you can use in the conditions the bike was designed for".
 
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