Cozen89 said:
Sound good to me, but I’m a complete novice when it comes to this sort of thing. Is it as simple as just changing the controller? I thought if you do that and want to increase power you have to change the battery to a higher voltage as well. Which I’m also open to doing, but the f37 doesn’t hold that many cells so wouldn’t going up to a 60v or 72v battery destroy your range? If I’m completely off base on this, let me know. I could use, and would appreciate some guidance on the subject.
litespeed said:
If your worried about loosing acceleration just get a more powerful controller.
When you get over 12kw nothing weight wise matters! I’m at 17kw now and can’t keep the front end down!
Get the moto rims and live!
Tom
So yes there is a trade off for all this power. There is no plug and play kit for any of this. The entire system has to work together.
Throttle/controller/battery/motor/cooling/ and lets not forget wiring etc. And who will be responsible for all of this working??? That would be you...
When was bone stock my phase wiring to the motor was falling to pieces, literally the sheathing was cracking and falling apart. So I upgraded the phase wires to 10 gauge. (that required removing the sheathing and using shrink wrap to get it through the axle)
While I was in there I installed a temp sensor. Come to find out there was already one in there but the wiring was folded back and not used. I installed a new one anyway because I was there and why not.
I had to drill a hole in the CAV and solder to the board and programming the thermal rollback myself.
That also lead to replacing all of the connectors from the motor to the chassis because well they sucked and were a pain to connect. Soldering that together was really annoying with the waterproof connectors.
I broke a throttle so I bought one from a company that said it was compatible with the controller... uh no it wasn't. It had a terrible lag and felt like it lost power. So I had to get one that would work. I wound up buying an exact duplicate of what came w the bike.
Then added in cooling to the motor which actually worked perfectly.
Then I rebuilt the rear wheel with a moto rim. Thanks to the forum for connecting me with the company to get all the spokes and rim from. I still have spokes break from time to time. maybe once ever other year.
Then as you know the controller crapped out because of vibration so I re-capped it. turd still doesn't work no idea why. Thankfully Rix the man hooked me up with a spare which I prepped w specific electronic grade rtv.
So then I bought a kelly controller because the nuke was backordered (still on the waitlist for that). That thankfully came w a throttle but after I bought it I realized that the wiring was not as simple as the stealth. I've started and stopped connecting this thing about 3 times because, well Ide rather ride than dick around with physical wiring. And the breaker/fuse situation.. good god......
Then comes the programming which I haven't even touched yet..
Im not even going to get into what I had to do to get the brakes and suspension to work decently.
I say this beacuse the second you start to modify the stealth there is no "upgrade" kit and you have to be responsible for all of this. I knew nothing about electronics, electric motors, DC electric circuts and I am still no master of any of this crap.. When I bought the controller I didn't understand what it would take to get it to work and I still dont fully get it...
BTW the kelly wont accept the temp sensor I have in the motor so I would need to install a different type... FAKKKKKKK
Honestly if there was someone I could just dump off my bike and some cash and say make it fast I would do it in a second. Ide rather be riding than tinkering but if your up for it its a great learning experience and you will be an expert. Im sure there are people on this forum who this type of stuff comes easy to them but isnt me. I learnt through mine and other peoples failures and successes.
Not trying to dissuade you from upgrading but its also good to get a reality check on what it takes and the details.