m in sc
Well-known member
So, aside from going from a standalone (which is still 'iffy' in my opinion on this bike) I decided i'd go ahead and do some digging and ask some questions of those that actually flash ecus. Heres what i found out:
so, the trail one can not be re-flashed due to a map sensor issue that ONLY the super cubs and trails have. says its unique and i can see that. also, it CAN be bypassed.
However, the 2022 grom and monkey ecus have the same interface as the trails do. those CAN be remapped. the timing curve on the trail is what's really holding back any potential power. the new gen ecus all run in open loop fueling, so, they WILL indeed learn fueling through the whole rpm and throttle range. (probably why mine hasnt blown up yet)
the cyl and head are the same across all models. the throttle body is the same size. New groms can do 72 mph legit with a pipe and a reflash and not be stressed. so, what i did was i have ordered a 2022 grom ecm. it was cheap. I'm going to plug it in to the trail when it arrives, and see if there are any issues. the only one i am sort of expecting is the map sensor, and if that's truly by-passable (which they do with standalone ecms.. ) I should be ok. If everything is good,, i can then send that out for a reflash and should be right as rain, and be in under 250 bucks total. this will open up the possibility for serious big bore kits, etc.
when i get this tried out will report, its supposedly on way now.
so, the trail one can not be re-flashed due to a map sensor issue that ONLY the super cubs and trails have. says its unique and i can see that. also, it CAN be bypassed.
However, the 2022 grom and monkey ecus have the same interface as the trails do. those CAN be remapped. the timing curve on the trail is what's really holding back any potential power. the new gen ecus all run in open loop fueling, so, they WILL indeed learn fueling through the whole rpm and throttle range. (probably why mine hasnt blown up yet)
the cyl and head are the same across all models. the throttle body is the same size. New groms can do 72 mph legit with a pipe and a reflash and not be stressed. so, what i did was i have ordered a 2022 grom ecm. it was cheap. I'm going to plug it in to the trail when it arrives, and see if there are any issues. the only one i am sort of expecting is the map sensor, and if that's truly by-passable (which they do with standalone ecms.. ) I should be ok. If everything is good,, i can then send that out for a reflash and should be right as rain, and be in under 250 bucks total. this will open up the possibility for serious big bore kits, etc.
when i get this tried out will report, its supposedly on way now.