ORIGINAL: soundmaster
Ok i tried a 14x6 apc prop i had and the RPM note increased dramaticly. It also had a ton of power when nose was up. So should i go with a 16x8 for arobatics or should i stay with a 14... the 18x8 sounds like it is too much and it bogs down the motor
Sounds like your in the ball park now. Don't make 50,000 changes here or you'll never know what the fix was. Fuel, plugs pump this that. Stick with the prop issue. It can come down to what type of flying your expecting from the engine plane combo.
The 2300 is a healthy engine but it's not a 160, 1.8,2.10 and many set the 2300 up as if it was. Like installing it on too large of a plane with too big a prop.
Have you noticed that nobody has asked what kind of plane this is? This would also be a big help