Hyena wrote:Here's a few pics of my fighter which is nearing completion - until I change my mind and reconfigure it all over again
cruzxia wrote:Hyena, Great looking fighter you have there, I bet it flys at 7kw. I like your balance connector idea 1 plug is the way to go. That is a rapid charging plan you have. Is your charger adjustable (current wise), Charging a a lower rate when you are not in a rush, will prolong cell life.
Kepler wrote:Nice work Hyena.
I think this bike is arguably the number 1 hub powered ebike on the forum (in my opinion )
Rix wrote:WOW!! Your fighter is Awsome! That thing looks wicked with the vented hub and the zock forks. 7KW with 18s. I am guessing between 90 and 100 amps. Got Torque?
Here is a pick of me going 56MPH (92.7 KMH) on the bomber. Slight downhill 2%, but if I factor in my coworker's radar cosign effect of the 2% grade, I am actually going 58MPH (96.3 KMH). This is an old ashphalt road. It was so rough in places that my vision was blurred from bouncing all over the place. YAH!!!! My max draw was 5.1 KW and pedaling my ass off. Not bad for a stock bomber @ 84 Volts with the CA set at 66 AH.
I straightend the post out almost completely and followed your suggestion of snugging the axel nuts and the post nuts in stages finishing with torquing the nuts to 50NM. I think there is a tiny stress crack in the weld from straightening, but its structually sound and I will reweld when I go up north to see my dad. Anyway I tested the bike's accel and regen (low speed and high speed) on this shitty bumpy road that I took the speed run picture on. The nuts did not move or loosen at all. If you look at this pic and compare it the pic I posted a couple of days ago, you can see that the axel post plate even fits better into the grooves now. BTW, I added a jam nut to the axel post. I believe between straightening the post and snugging the nuts in stages like you suggested solved my axel nut problems. Thank you for the advise. Next on the agenda will be venting the hub. I ride smart, but I noticed that when the hub is hot to the touch and I am accelerating, my CA indicates that my current doesn't drop like it does when its cool which I believe I'm loosing some power to heat. Is this correct?
cruzxia wrote:The Fox 40 forks get great reviews for the way the work, but they need constant rebuilding (service every 10 - 15 hrs), so they are out.
cruzxia wrote:Interesting to know your default CA settings, my Bomber came set as follows:
LVC 69v and 65 amps. If I let the battery settle for a few hours after charging it drops to 80.1v.
After riding you should take a look at the following readings on the CA
Vmin and Amax, that will tell you how low you voltage dropped, and the max current, the two usually happen at the same time, unless the voltage goes below the LVC.
I find that once I have used about 1400wh if I accelerate hard the voltage will dip down to 70v (my new LVC setting) then the output limits to around 3800w. With the LVC set at 70v the Vmin goes as low as 68v, with LVC at 69v the Vmin will drop to 66v
It is because my CA takes a few seconds to react and limit the voltage. I altered some of the advanced settings in the CA and it improved slightly.
If I limit the current in the CA the reaction delay is very noticeable, It accelerates at full for power for a few seconds, and then shuts off the power back to the setting.
Re the forks, I have read plenty of reviews, trying to work out which fork to upgrade to. The Fox 40 forks get great reviews for the way the work, but they need constant rebuilding (service every 10 - 15 hrs), so they are out. The Mazocchi 888 RC3 is the way to go, they get great reviews for function, and everyone says they need almost no maintenance (service every 2 years) They weigh about 3.3kg, and I have seen them for around $850 in the US. The Mazocchi 888 TI comes in at 2.9kg, but it is not worth the extra $700 to save 400g, when your bike weighs 53kg
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