MS109 Goodness

[Matt_E]

Does humidity have something to do with this?
I ride mostly in desert climate.

 

[Cannibal]

If it made that noticeable of a difference for someone riding in the northwest, imagine what it does for the people in the south where it is wickedly humid.

I think you have that backward

Humidity is water vapor. In a given amount of air, it displaces oxygen content, making the air less dense. As a result, the engine ingests less oxygen, and its output is reduced. For example, on a hot day at sea level, high humidity would cause a carbureted outboard to run rich.

However, if you always have higher barometric pressure than we do, then yes, it would make more power down there.

Now what would really make a difference is if you were riding below sea level on a cool, dry day with high barometric pressure. :brap:

 

[masterblaster]

thats what I was thinking,The rare summer days here when its hot all day and road heats up and then a system moves through and sucks all the humidity and heat out of the air temp drops 20 deg,is the evening the sup comes out and hp is in the air and heat is on the road lingering for purty traction...same thing as a head high glass day with sw winds on a high incoming tide

 

[2XLR8]

That is the point I am trying to make. If you Matt had good results with it in dryer climate the gains have to more in humid weather where there is water displacing what should be oxygen. I have never used MS109 because of the cost. When I was racing we used leaded fuels like Trick and Unocal. I do have a little experience tuning with it in a limited 800SXR and I know it made enough of a difference to be worth it if you were racing.
For all you guys that think MS109 is too expensive check out the price of the VP HTG fuel. It is a higher octane version of MS109 and it was sold at the world finals.
There are racers in Europe that use MS109. With the shipping charges and import duties it is way more expensive than it is here.