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  1. Grom Performance
    New to the forum and to Groms. I’ve been on a obsessive deep dive the last week and have totally geeked out since then.. This one is a bit counter intuitive, but bear with me. I’m working on an EFI for a batch of grom 212cc clones. The EFI setup for testing and baseline is speedunio for now...
  2. Grom Talk
    Trying to decide which computer controller to go with. My goal is not to add top end speed as I had it going 64mph today.. but for my Grom to not be effected by the wind and hills as much... and the occasional wheelie is always fun too :) I purchased the Grom with these engine mods: Chimera...
  3. Grom Performance
    Hi my name is Jamie ellis I've built supercross and motocross race engines for over the last ten years. I'm looking for anyone with a honda grom in the southern California area who has a grom who wants to do some dyno testing. I've got the dyno and some time if you are down hit up I have some...
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