grindz145
1 MW
Once I get the timing advance programmed in Ill be damn close. At 37 right now.
40 mph club
- Thread starter wasp
- Start date
icecube57
10 MW
On my GM at 88v nominal i can barely creep into the lower to mid 40s in the flats. If i tuck in i can get into the high 40s. On a down hill stretch i can get it to the 50s. In this video i was upright going down a hill and got up to 52mph. This was done on (6) 2s3p Bosch Packs 6.6AH for 74v off the charger and a 12v 15AH Ping booster pack. Its really inefficient at these higher voltages and sucks major wh. 80-90wh per mile.
[youtube]yujThBuy-cM[/youtube]
Here is another video the first two sections are accelleration clips then there is a later accelleration clip around 6:25
[youtube]TlOMm8GBbLQ[/youtube]
This one is no audio and the video is double speed. Around minute 1:00 I opened up the throttle and it caused a motion blur in the video. I thought it was cool.
[youtube]zMNkKYUYCVk[/youtube]
[youtube]yujThBuy-cM[/youtube]
Here is another video the first two sections are accelleration clips then there is a later accelleration clip around 6:25
[youtube]TlOMm8GBbLQ[/youtube]
This one is no audio and the video is double speed. Around minute 1:00 I opened up the throttle and it caused a motion blur in the video. I thought it was cool.
[youtube]zMNkKYUYCVk[/youtube]
grindz145
1 MW
How many fets are in that ecrazyman controller? Thats pretty badass! Do you have it programmed to do 120%?
icecube57
10 MW
12fet stock ecrazyman controller with 4310 mosfets at 45A. It ran slighly above luke warm at 88v nominal. Most of the heat was from the input resistors dropping the voltage down to the regulator. I gave it hell in that first video. The motor get saturated with heat super quick in real world riding like in the video.I modded it to work at any voltage and currently im pushing the controller hard 20+ miles constant WOT at 60v. Stepping up to 72v.... again this week as soon as my 4 Thundersky cells come in the mail... mmmm 72v 20AH goodness here I come. I will be doing trials on the new 1606 9C at 72v.
icecube57
10 MW
grindz145 said:
Yeah its programmed to 120% I think its badass and I give my motor alot of respect because the bike can do that with my fat ass on it. Im 325 the bike is 40lbs the motor adds another 15 and the pack was i belive 25lbs for the 88v nominal pack so it had a 400+lb payload. My Thundersky Pack will be about 38lbs. But when you have 1.5kw of power on tap is weight really an issue? If my GM is so good why do i keep leaving her to look for other women .. I mean motors.... we not married and Im a man... she aint going anywhere and she knows I'll come back to her. Unless an X5 falls out the sky .. then she can suck it.
NorCalTuna
1 W
- Joined
- Mar 24, 2010
- Messages
- 58
I'll jump in here- Although the cycle analyst says I was going 39.6, my gps on my iphone 3gs (I mention the gps rig for reasons below) says I went 40.9 mph, which puts the nerdmobile in the club. 26" x5 5303, 3p2s 72v fatpacks, 65a lyen controller. I wasn't even really trying to do it, it just happened on my way to school, so I don't know how much it was drawing, etc.
That said, does anybody know what to say about GPS speed accuracy and that particular handset? I'm using the cyclemeter app, which is a logging/telemetry app. I'm a bit skeptical but don't know enough about gps, this gps, or the app to say how credible it is.
The bike can do it, but I'm likely going to wait until I have more battery and a suspension frame to explore the snorty forties some more...
incidentally, I'm a member of the 180 club, but the nerdmobile is just as fun.
That said, does anybody know what to say about GPS speed accuracy and that particular handset? I'm using the cyclemeter app, which is a logging/telemetry app. I'm a bit skeptical but don't know enough about gps, this gps, or the app to say how credible it is.
The bike can do it, but I'm likely going to wait until I have more battery and a suspension frame to explore the snorty forties some more...
incidentally, I'm a member of the 180 club, but the nerdmobile is just as fun.
ryan
10 kW
I also noticed a new record today on my gps (cyclemeter app as well). It said 45.75mph, but my Cycle Analyst said 39.5mph. I definitely believe my CA over the gps. I wasn't even trying to go fast today. Just WOT on the flats.
At that rate my gps would say I made it to the 50mph club if I really pushed it with some gravity assist. Sorry to burst your bubble. Can anyone else weigh in on the reliability of gps speed measurement? I mostly use it to track routes on a map.
At that rate my gps would say I made it to the 50mph club if I really pushed it with some gravity assist. Sorry to burst your bubble. Can anyone else weigh in on the reliability of gps speed measurement? I mostly use it to track routes on a map.
NorCalTuna
1 W
- Joined
- Mar 24, 2010
- Messages
- 58
I poked around and discovered that, particularly below 25 mph, the speedometer on the iPhone is known to be somewhat inaccurate. It's not WAAS enabled (which uses ground sources to improve accuracy down below 3 feet 95% of the time, thus spake internets) so it's not as accurate as a dedicated Garmin or what have you. Possibly the software tries to interpolate results which may not be entirely (within 5-10%) accurate?
(Until further notice I will withdraw my club entry and resume battery shopping. New DH bike in the works.)
I didn't want to hijack this thread with speed measurement accuracy! This thread is for speeeeed, and could be a sticky: the 40, the 50 and the 60+ club... Known setups, ranges, etc... Since there is question though, should there be an accuracy thread? How well known is the CA accuracy? Is it effected by the controller type, or the accuracy of the hall circuit, which it seems to utilize?
Lastly, I propose a new challenge:
40 miles in one hour, or less, on a charge. One hairball hour, no pedaling. I'd guess you'd need like 60-72v and 40ah or better? I may not join that club...
(Until further notice I will withdraw my club entry and resume battery shopping. New DH bike in the works.)
I didn't want to hijack this thread with speed measurement accuracy! This thread is for speeeeed, and could be a sticky: the 40, the 50 and the 60+ club... Known setups, ranges, etc... Since there is question though, should there be an accuracy thread? How well known is the CA accuracy? Is it effected by the controller type, or the accuracy of the hall circuit, which it seems to utilize?
Lastly, I propose a new challenge:
40 miles in one hour, or less, on a charge. One hairball hour, no pedaling. I'd guess you'd need like 60-72v and 40ah or better? I may not join that club...
Yeah I'm using the GPS on my phone as well. Sadly, I'm using the cheapo Turnigy Wattmeter so no CA for me. Anyway I just recorded a new record for me. 56mph fully-aero with slight wind at my back. Not surprising considering I'm running an identical reduction to Scott's 50mph beast and this is a cyclocross bike. This bike still has something extra "in-the-tank" to crack 60mph I think. But again, 56mph was insanely scary - I need to suppress the urge to WOT on this thing. And yes, I borrowed a friend's DOT motorcycle helmet and jacket for this run. Some folks asked me to upload current pics of my set-up but my camera's been busted for some time so here's one from a few weeks back.
cell_man
100 kW
I've done almost 170mph on 2 wheels and just over on 4, and take liberties with my present ebike in the city which goes maybe 42mph on the flat so I'm in no position to lecture anyone, but I'd still recommend you take it easy on that bike MrBoots. It really doesn't look like it's suited to travelling at close to 60mph with what at least 5KW 
Cell-man, thanks for the caution - I've been considering my options for slowing the bike for some time now. The problem was, I originally planned on using a Castle Creations ESC and set up the bike for the larger Turnigy 130Kv at 6S on a MTB. But due to my own inability to resist cost savings I went with the e-Crazyman controller and cheaper, smaller but higher "revving" 200Kv HXT. I'm currently taking measures to reduce speed by reconfiguring my battery pack to the original 6S from the current 8S. This should limit top speed to under 40mph which is plenty fast enough for me to commute quickly around town.
dogman dan
1 PW
Ok, I'll bite. What's 120% throttle? Is that just a way to tweak the simulator to go beyond it's normal limit?
wasp
10 kW
- Joined
- Apr 3, 2008
- Messages
- 679
i reprogramed my lyen 72v 65amp controller with the softwaredogman said:
it really does work
i was a little sceptical at first...without the software tweek i hit 64.4 @ 83v hot off the charger (74v nominal)
with only the 120% throttle setting i hit 73.0 kph almost 10kph difference
and thats with a stock 9X7 9C in a 26" rim stock wiring and all...
btw its a whole different animal @ 50amps acceleration is more than twice as fast as stock
dogman said:
i think uve done that.
it's when u break the thumb-tab off the throttle.
dogman dan
1 PW
Still confused what you mean Wasp, but since I have just recieved a Lyens controller and programming cable, a translation in to dummy english would be appreciated. Are you adjusting the throttle on the controller or the amps? Mine should be a 45 amp now.
Ordered 5 lipo bricks today, so 40 mph club here I come!
Ordered 5 lipo bricks today, so 40 mph club here I come!
wasp
10 kW
- Joined
- Apr 3, 2008
- Messages
- 679
when you get the software up and running you can adjust the throttle max in programing...this is the first thing i would changedogman said:
the factory setting is 100% and you can dial in free mph...as high as 120% or to a legal limit say 60% the world is now yours...lol
don't mind me i just came back from a ride and my bike is now stupidfast...you will see
i have also adjusted the amps and phaze amps but start with the throttle
check the unloaded speed then reprogram takes 5 sec and repeat and you will see 20% gain honest
dogman dan
1 PW
Cool, now I get it. I just had trouble groking 120% of something. But if the stock value is 100% and it's adjustable further up, then 120%. Just weird though, and at first I wasn't sure you were doing something real world, or in a simulator.
Maybe with the right prorgaming in the controller, I can still get close to podium fast on 72v for the death race. All I'll need to do is ride that fast without crashing.
Maybe with the right prorgaming in the controller, I can still get close to podium fast on 72v for the death race. All I'll need to do is ride that fast without crashing.
wasp
10 kW
- Joined
- Apr 3, 2008
- Messages
- 679
dogman said:Cool, now I get it. I just had trouble groking 120% of something. But if the stock value is 100% and it's adjustable further up, then 120%. Just weird though, and at first I wasn't sure you were doing something real world, or in a simulator.
Maybe with the right prorgaming in the controller, I can still get close to podium fast on 72v for the death race. All I'll need to do is ride that fast without crashing.
i'm thinking 9X7 modified phaze delta/wye 100v 50amps 120% throttle got to be over 100kph/60mph
i'm not even there yet and my bike already scares the crap out of me
i need a temp probe now too
things i now do with my bike...
power donuts on the freshly dewed grass (around 2am)
literally smoking my rear tire on the pavement
wheelies,wheelies and more wheelies
dogman dan
1 PW
Sounds fun. Diving into those cart track corners at 40 ought to be fun enough for me.
wasp
10 kW
- Joined
- Apr 3, 2008
- Messages
- 679
at these voltages i find throttle responce a little erratic under 10 mph maybe it's the torque but it's hard to just creep along on say the sidewalks or really twisty trails it turns jeckel/hide at 15mph like a powerband blink your at 30mph or fighting a wheelie lol
Your controller probably has pads on the PCB for a 3-speed switch Hi Med Lo. If you wire that up, the Lo setting will probably give you the control you're after. Might not, but worth a shot. If you're lucky it's already wired out to a connector.
dogman dan
1 PW
Yeah, get enough volts and the bike is likely to be a switch that goes from off to 20 mph. Mine's going to be front hub, but I better start laying in a supply of the tire I like.
I just need a few more details to complete the build on my low speed bike, using the 6x10. At 48v it climbs a hill at 10 mph great, and on more moderate grade, seems able to chug along at 5-10 mph all day without lugging till it roasts itself. It's turning out to be a great trials type ride for the dirt trails near my house. Perfect for riding the speed of a dogpack.
It's just really hard to have it all on one bike without going to the RC motor or other type of through the bike gears motor. It's ok with me though, no way do I want to corner on 2.5 inch wide knobbies on the street! I need to get more bikes, right now I have on FS commuter, one FS pedaler, one FS trials ride, one no suspension race practice bike building, and I still need one more for motor review testing. Hopefully some more wallbikes will appear at the flea soon.
I just need a few more details to complete the build on my low speed bike, using the 6x10. At 48v it climbs a hill at 10 mph great, and on more moderate grade, seems able to chug along at 5-10 mph all day without lugging till it roasts itself. It's turning out to be a great trials type ride for the dirt trails near my house. Perfect for riding the speed of a dogpack.
It's just really hard to have it all on one bike without going to the RC motor or other type of through the bike gears motor. It's ok with me though, no way do I want to corner on 2.5 inch wide knobbies on the street! I need to get more bikes, right now I have on FS commuter, one FS pedaler, one FS trials ride, one no suspension race practice bike building, and I still need one more for motor review testing. Hopefully some more wallbikes will appear at the flea soon.
