41MPH EVG SX bike with Magic Pie motor

[Tommy L]

Dude. Highest Amp reading thus far.

Yawwwwwwhhhhhhhh! and Dude, you hit 125amps!
I'm just about to plug my updated pack 28S1P to 36S1P into my new Lyen 18fet 4115
I won't hit 125amps but my nominal pack volts are 115v I'm going for RPM out of my
9C 2810. 40mph on 28S1P. Hoping for 50mph on my 36S1P backpack.
New pics up on my Hoolagan build.

Tommy L sends.... \\m//

[Tommy L]

40S1P 128v nom Pack!

with Lyen 18Fet 4115 ....

How's your project?

Tommy L sends..... \\m//

[snellemin]

Enjoyed the vid man. That was a nice quick ride.

[Tommy L]

Enjoyed the vid man. That was a nice quick ride.

\\m//

[Blackssr]

@ OP
Your post about EVG ebike inspired me to do the same. I purchased on ebay ,a like new, 24 volt model for $ 50.00. I converted to 20S3P with 1000 Watt ebay kit and Lyen 12Fet controller, 3 speed switch and CA DP. I had to put an 80 mm high speed fan "angled" under the controller to keep it cool while running under load. The Air exhausts out the " seat post area" with the force of a blow dryer. I set the controller to 35/85 amps and have a top speed on 43 mph on flat ground. I am in Florida so no hills here.

I have a couple of questions for you if I may.

1) I seem to be eating rear tires rather quickly. Less than 300 miles. I ordered the Michelin Pilots that you have in the photos. Are you happy with them?
2) I have the 1420i charger and charge in 2 stages: 14S and 6S. This takes about 3 hours for about 10 amp/hours of use. Do you know of a way to charge the entire pack as a whole with balancing? Can this even be done?
3) Where did you buy the switch with the Horn, light and power?

Regards, and thanks in advance

Mike

[Tommy L]

2) I have the 1420i charger and charge in 2 stages: 14S and 6S. This takes about 3 hours for about 10 amp/hours of use. Do you know of a way to charge the entire pack as a whole with balancing? Can this even be done?


Regards, and thanks in advance

Mike

Hey Mike!

Lots of threads here on the charging subject in the battery section I believe. But from what I've read and what I do......

Parallel your packs and get a parallel JST-XH board as well. Not sure how your 14s pack is configured? 2 7s? and then the 1 6s?
Most will stick to a 6S config pack and series them for their voltage then parallel for their capacity.
The way you charge is to reconfigure and bring the series down and do more parallels then parallel the JST-XH thru a board or pigtails.

example: if you have 8 6s packs and you series and parallel for riding in a 24s2p config then for charging you reconfig the pack from
the 24s2p to a 12s4p to charge

I hope this helps.... BE CAREFUL and KNOW WHAT YOU ARE DOING!

Tommy L sends.... \\m//

[Blackssr]

2) I have the 1420i charger and charge in 2 stages: 14S and 6S. This takes about 3 hours for about 10 amp/hours of use. Do you know of a way to charge the entire pack as a whole with balancing? Can this even be done?


Regards, and thanks in advance

Mike

Hey Mike!

Lots of threads here on the charging subject in the battery section I believe. But from what I've read and what I do......

Parallel your packs and get a parallel JST-XH board as well. Not sure how your 14s pack is configured? 2 7s? and then the 1 6s?
Most will stick to a 6S config pack and series them for their voltage then parallel for their capacity.
The way you charge is to reconfigure and bring the series down and do more parallels then parallel the JST-XH thru a board or pigtails.

example: if you have 8 6s packs and you series and parallel for riding in a 24s2p config then for charging you reconfig the pack from
the 24s2p to a 12s4p to charge

I hope this helps.... BE CAREFUL and KNOW WHAT YOU ARE DOING!

Tommy L sends.... \\m//

Tom,

Thanks for reply.

I am at the moment charging/balancing 14s3p at once with a custom cable I made for the 1420i. I was asking if there is a way to charge/balance the entire 20s3p at once using a different setup. I leave the entire 20s3p on the bike and charge 14s3p and 6s3p seperately but still connected. I would like to make a custom 20s cable and charge / balance the entire pack but not sure if it can even be done.

Regards,

Mike

[parajared]

I have had a mostly good experience my magic pie 2. It's easier to install larger phase wires than 9c due to the open shaft design. It takes less time to shed heat off than 9c, and it heats up less quickly than 9c on the uphills (I may change my mind once my 2810 9c arrives).

I have broken spokes on my pie and not my 9c, and I have burnt up hall sensors on both 9c and magic pie.

I was hoping to go to sensorless, but it sounds like you fellas are having trouble with your controllers. Do you think sensorless is worth the jump?

[o00scorpion00o]

I have had a mostly good experience my magic pie 2. It's easier to install larger phase wires than 9c due to the open shaft design. It takes less time to shed heat off than 9c, and it heats up less quickly than 9c on the uphills (I may change my mind once my 2810 9c arrives).

I have broken spokes on my pie and not my 9c, and I have burnt up hall sensors on both 9c and magic pie.

I was hoping to go to sensorless, but it sounds like you fellas are having trouble with your controllers. Do you think sensorless is worth the jump?

Not for more than 2500-3kw of power no.

I had terrible problems with mine over 3kw full throttle. I would get this really bad out of sync noise and vibration.

[snellemin]

I don't get any sync issues with my current setup. But I see Lyen selling 18fet sensorless controllers now.

I use a sensorless 6 fet on my other bike on the mtb trails. A sensored setup would be ideal on those trails at times. But I pedal mostly and am not lazy enough to bitch about startup issues, when it only takes a inch of movement to get the bike moving under power.

[o00scorpion00o]

I don't get any sync issues with my current setup. But I see Lyen selling 18fet sensorless controllers now.

I use a sensorless 6 fet on my other bike on the mtb trails. A sensored setup would be ideal on those trails at times. But I pedal mostly and am not lazy enough to bitch about startup issues, when it only takes a inch of movement to get the bike moving under power.

Depends on the currents then maybe ? If I remember correctly, you turned down the amps a bit and still had to be careful with the throttle ?

I was pulling 80 amps from a modded LYEN. I saw peaks of around 110 amps.

I gave up in the end now I'm going to put the conhismotor back on and see what it takes to burn that. I gave the Pie back to Pat and I got my brothers Trek racer now and pedal mostly. In winter I want the motor to get around locally, but I'm getting more interested in chain drive now.

But the Pie is a great motor and I think any more power is way too much for a bicycle frame.

[snellemin]

I turned down the phase amps a bit and left the battery current up on the 12 fet. I just installed another throttle on the bike as the older one was getting iffy. I then used the CA as my current limiter and got it working well in my second speed setting when I pull the kids trailer up hills. But for the 100% speed setting I still have to be ease on the throttle. I'm thinking that the 18Fet will fix that problem.

On the 6fet sensorless, I have it set for 86A Phase current and 35A battery current. Lyen told me to program the controller as a EB312 instead of EB306. I programmed the first 6fet as EB306 and fried it in an instant on the first test ride.

I too am looking at mid-drive systems, but I will be needing a custom build frame for what I want. One day. Until then, I'll keep beating on the Magic pie.

[o00scorpion00o]

I turned down the phase amps a bit and left the battery current up on the 12 fet. I just installed another throttle on the bike as the older one was getting iffy. I then used the CA as my current limiter and got it working well in my second speed setting when I pull the kids trailer up hills. But for the 100% speed setting I still have to be ease on the throttle. I'm thinking that the 18Fet will fix that problem.

On the 6fet sensorless, I have it set for 86A Phase current and 35A battery current. Lyen told me to program the controller as a EB312 instead of EB306. I programmed the first 6fet as EB306 and fried it in an instant on the first test ride.

I too am looking at mid-drive systems, but I will be needing a custom build frame for what I want. One day. Until then, I'll keep beating on the Magic pie.

Ah yeah the Pie is a great motor. I wish I could commute with it, @ € 8.23 per U.S Gallon Petrol prices are getting unbearable, but I got a 84 mile commute a day, I'd need a big ass battery for that LOL!

How is the 18 fet different ? (apart from the obvious)

[snellemin]

Well, I assume it would have the faster "processor" like the new 6 fet that I got vs my 12 fet. I haven't asked Lyen yet about the controller. But I would for sure have to upgrade the phase wires coming out the motor with the 18 fet.

[cal3thousand]

I turned down the phase amps a bit and left the battery current up on the 12 fet. I just installed another throttle on the bike as the older one was getting iffy. I then used the CA as my current limiter and got it working well in my second speed setting when I pull the kids trailer up hills. But for the 100% speed setting I still have to be ease on the throttle. I'm thinking that the 18Fet will fix that problem.

On the 6fet sensorless, I have it set for 86A Phase current and 35A battery current. Lyen told me to program the controller as a EB312 instead of EB306. I programmed the first 6fet as EB306 and fried it in an instant on the first test ride.

I too am looking at mid-drive systems, but I will be needing a custom build frame for what I want. One day. Until then, I'll keep beating on the Magic pie.

Ah yeah the Pie is a great motor. I wish I could commute with it, @ € 8.23 per U.S Gallon Petrol prices are getting unbearable, but I got a 84 mile commute a day, I'd need a big ass battery for that LOL!

How is the 18 fet different ? (apart from the obvious)

WOw.. that's a long commute. How about a folder bike that you can use for the last 10 miles to work? You might save a gallon of petrol per day.

[parajared]

You can make an 84 mile per day commute work, but assuming you would want to coast along at 50mph or so, you are talking about a fair lot of weight, time and money. 30s at 20ah = about 18kg (about 40lbs) and a little over $900 in battery. And assuming you commute at around 50mph instead of 75mph you would spending close to two hours on a bicycle rather than a little over an hour in a comfortable car.

The idea of the folder bike is cool too. You could avoid some of the more clogged up traffic you would normally take in your car and not have to go too crazy with the battery.

[o00scorpion00o]

Indeed all good ideas, but I think it's too much hassle to find parking and free parking at that.

All the way on a bike would be very tough especially in winter. And you would want to be able to do at least 50 mph and that's too dangerous, something like a vectrix or better again the zero motor cycles, they look really good and have great batteries, but the vectrix might be the more comfortable with better weather protection.

By the way I made a mistake with my fuel calculations, instead of euros per gallon I meant USD.

I really would like to live much closer to work as 10 hrs commuting a week is a waste of time! The pie would be a great commuter, I remember running it on 24 S LiPo and 80 amps around 7kw oh boy was it great craic, but I hammerd the shit out of the Zippy's in 1P, but the acceleration was so much fun!

I think an ev like the leaf or Zoe would make a great commuter shame Zoe won't be sold in the U.S or Canada, It will be a great car, you won't get twizy either. I would rather spend my money on the car than on the fuel to be honest.

It would clost me about 3,500 euros a year in fuel in the Prius for my yearly driving needs, and that's on a 64 imp mpg car. A lot of money wasted on petrol!

[snellemin]

I drove the leaf and was impressed with it. Not the coolest looking car, but it was super quiet with plenty of torque. Batteries are underneath the car, so you still have a little trunk. It still had a lot of pep with 4 full size adults in it. AC and Heater worked great too.

[o00scorpion00o]

I drove the leaf and was impressed with it. Not the coolest looking car, but it was super quiet with plenty of torque. Batteries are underneath the car, so you still have a little trunk. It still had a lot of pep with 4 full size adults in it. AC and Heater worked great too.

I would give anything to drive an E.V, Zoe would have more range but it's a smaller car, but uses a heat pump for much better efficiency, or so they say!

The Leaf also costs 10,000 USD more in Europe than in the U.S!

[snellemin]

Wow!!! 10K more for the leaf?!!! That is just crazy man.

Rode my bike into work today. Work security gave me a hard time bringing my bike into my lab. My response was..."I thought HP was going green".

[o00scorpion00o]

Wow!!! 10K more for the leaf?!!! That is just crazy man.

Rode my bike into work today. Work security gave me a hard time bringing my bike into my lab. My response was..."I thought HP was going green".

Yep, 10 k more because of tax!

Did they give you a hard time because it's electric ?

No way would my work allow me past the front door with mine, I'd be able to sneak in the battery maybe if I'm lucky.

[snellemin]

OOhhhhh the tax is the killer.

They gave me a hard time, because they want me to keep it in the parking garage. Pffff, I had my suv broking into and my other car vandalized, while the security is there. I'm not keeping my bike in the garage, when I got the ok from my boss and his boss to keep my bike in my lab.