Banshee doesn’t feel like it’s giving me full power , sometimes bogs

[Bryan_aceves]

So I have a banshee bore to 370 

66mm pistons , cool heads 

34 carbs 

CPI big pipes 

Cylinders are ported . 
 Yesterday I was racing w a friend in the sand . We both had paddles . He had a banshee aswell but he 65.5 mm pistons . Other than that he was stock . But he was taking off better than me and he was winning me in 300 ft race . We were both taking off in 2nd gear . Why does his banshee seem to have more power and better response if my banshee has mods that are suppose to make It faster ? Maybe jetting ? Idk . FYI I’m new to banshees . This is literally my first banshee and I got it Like that . 

[hoppedupandcutdown]

Tire choice, gear ratio, rider weight, rider ability, sand moisture content. Tons of things...My Banshee acts different daily in the sand due to moisture (air and sand).

 

[locogato11283]

Pretty big carbs for a 370cc motor. Also, the CPI could be hindering performance as well. They might be hurting you, especially off the bottom.

 

There's a lot of factors at play here. Have you checked compression?

[Bryan_aceves]

I just had someone put new pistons on it like 3 weeks ago . Compression should be fine 

[locogato11283]

I just had someone put new pistons on it like 3 weeks ago . Compression should be fine 

Unfortunately, that’s only what part of the equation. Domes and base gasket can also change compression. You do what you want, but there’s an issue somewhere.

[Bryan_aceves]

I’m sure there is thanks for the input I will look into more and see what I can find 

[locogato11283]

Did you check compression?

[Liwa-banshee]

My friend, went through the same experience. And a rigorous trial & error experiment. Turns out...air filters. Change’em and you should be good. Don't believe me? Remove your filters and try revving the engine and see the difference. 
 

cheers

[locogato11283]

Outerwares with dust on them will cause all kinds of issues.