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Jetting for Glamis from 5,500ft


Mrtaterman

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So a trip to Glamis is in the making, o was just curious to what jetting y'all at sea level are using so I can get an idea to what I should bring.

Current mods on my bike are fmf sst pipes, vf4 reeds, head milled .015, and Toomey intake. Jetting now is 300 mains, needle in middle position ( if I remember right ) 27.5 pilot.

I have many jets, and plan on bringing them all. I would just like a ball park estimate

 

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I've seen ported 4mils run 30 pilots and 330 mains.

 

Why are you guys jetted so fat.

 

For instance, Toomey 2 into 1 intake and T5's at sea level run 27.5 pilots and 270 mains.

 

But that's also 75* weather.

 

If you're super cold at altitude, I believe it's up a main jet/20* difference in temp.

And up a main jet for every 2000ft you come down in elevation.

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