Quote:
Originally Posted by ThunderCactus
you could be using an undersized battery with small gage wires and standard gears to try and pull back a 400fps spring.
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i had that problem when i got my custom built echo 1 gearbox for in my sl-8. my 8.4v's and my 9.6's wouldnt move the gears at all and i was like aw crap. then i hooked up the lipoly battery i got with my ika zuchi m4, it shot just fine til the fuses started blowing in my re-wired mauri ext. wires fuse box so i had to go buy some stronger fuses