There isn't really any acceleration because as soon as I remove the glow plug charger it dies. If I keep it on, and lift it and apply gas it screams and sounds strong and smoother. I think I might know what I did to start this, but I have no idea how to fix it. Check out my review thread in this forum, and if you got any idea's I'd love to hear it. Because I'm very preplexed at the moment.