ZombieSS's Official Greyborg Warp build thread LOTS OF PICs

[Rix]

Zombiess, thanks for stepping in and clarifying that. Learning more everyday. ///Edit/// The cromo is up over 90%? That is indeed impressive. The 5403 is in the low 80s, the 5404 and 5405 would only be slightly higher, but wouldn't be out of the 80s for sure. For awhile, Justin had the cromo V1 on his simulator, but not officially. He posted the data based on input. He called it the general 5004. A hub motor with a 50mm wide stator and 4 turn wind on the stator. Its been off for a while now. I suspect it was because he hadn't done complete testing to meltdown. As far as innovation goes, the cromotor is superiour for two simple reasons, the axle being a 16x10, and the wider stator. That increased surface area translate directly into durability and power to the ground. I wish I could get the cromo with that axle and 162mm wide faces. I could modify the torque blocks easy enough to except the bigger axle and it would slide right in with no spacers. Still not impossible to do with the current 145mm wide axle though. Just need spacers.

Rick

 

[Holbrook]

Thank you both very much for this information. I just ordered Lyen's biggest controller for this Cromotor. What is the most volts and amps I should use? Hoping for 55MPH and running SR241 18'x4" tires with 26.42" O.D.

http://endless-sphere.com/forums/viewtopic.php?f=31&t=19719#p287691

 

[Rix]

Thank you both very much for this information. I just ordered Lyen's biggest controller for this Cromotor. What is the most volts and amps I should use? Hoping for 55MPH and running SR241 18'x4" tires with 26.42" O.D.

http://endless-sphere.com/forums/viewtopic.php?f=31&t=19719#p287691

An 18x4 SR241 is a full size moto trials tire. That tire is big enough to bog down 250cc 4 strokes. That tire alone weighs north of 13 pounds with out a tube and is at least 4 1/4 inch wide or wider. You should really consider the SR241 in 3.00x18 or even 3.5x18. Those tires come in around 8-11 pounds, 3.3 to 3.7 inches wide, and are 24.6-25.6 inche OD respectivley and would be much more ideal for the cromotor.

Rick

 

[zombiess]

Thank you both very much for this information. I just ordered Lyen's biggest controller for this Cromotor. What is the most volts and amps I should use? Hoping for 55MPH and running SR241 18'x4" tires with 26.42" O.D.

http://endless-sphere.com/forums/viewtopic.php?f=31&t=19719#p287691

You are going to need to run around 120A battery if you want to get to 55mph without needing a really long stretch of road. I haven't hit 55MPH yet (only 53), but I also find it pretty useless for me to go that fast except when I'm stress testing controllers I built so I know how to rate them. Right now I'm at 100V 150A, but I just modded the shunt so I should be able to get to 200A without it cutting out now which is where I'm going to call it quits, +18 kW input to a Xie Chang 24 FET IRFB4115 controller has got to be some kind of record if It's reliable. Hopefully the controller is good to go so I can finish building the rest of my stock which has been stuck in boxes for several months.

 

[Rix]

+18 kW input to a Xie Chang 24 FET IRFB4115 controller has got to be some kind of record if It's reliable

Oh Ya!!!!! 18kw Ebike that can be pedaled, that should make a lot of pedestrians/hikers shit the bed.

 

[zombiess]

+18 kW input to a Xie Chang 24 FET IRFB4115 controller has got to be some kind of record if It's reliable

Oh Ya!!!!! 18kw Ebike that can be pedaled, that should make a lot of pedestrians/hikers shit the bed.

Shunt mod is done, but it looks like I won't get to test it out on this controller as I just sold it. That's OK though, I have 12 more left and 3 of them are almost ready to go, I just need to solder on the phase wires and connectors, probably 2 hours of work and then I can start testing another one. I'd like to see if I can reach the 200A mark with IRFB4115 FETs. The controllers barely even get warm due to good heat sinking.

 

[100volts+]

A little over 50 mph is what I''m getting with 115v and 110a with a 24 fet zombiess controller. Could probably go a little faster but I'm realizing now that kind of speed on any bicycle is a little scary and not a speed I want to attain all the time. I do want to try for 60 with 125v just once though. The adrenalin rush is cool.

 

[Rix]

Zombies, going to be lacing a 19x1.4 Prowheel racing rim to a Cromotor for a guy in the bay area. Problem is, I am not sure what the Spoke flange diameter is or the width of the flange. Need this info to calculate spoke length. Seems like someone had Pm'd me a link for the info a while back, but I cant find it now.

Rick

 

[zombiess]

Rix I can measure them for you, but I would hate to get the measurement incorrect and have you order the wrong spokes.

I didn't think the width of the flange mattered much, but I do not know how to lace a wheel. I know Methods took apart a 9C wheel build and laced a cromotor in without any changes to the spokes and they have very different flange widths.