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Discussion Starter · #1 ·
We at EVDrive are getting ready to do a bulk order of AMR motors. These motors have been unavailable for the past couple of years, but AMR is starting back up production. EVDrive is now the exclusive distributor of these motors, and AMR will no longer be selling them directly, so this is the only place they will be available.

In the long term, we will be doing stocking orders, but if you want one of these motors in the next 6 months we would need to know to add you to this current order.

For those who are not aware, the AMR series motor uses Remy HVH250 cores which have internal oil cooling so that both the stator and rotor can be cooled, allowing for exceptionally high continuous power density. Unlike the Remy housed motors, the AMR motors integrate the entire oil system internally so that the motors can be cooled with a more typical water/ethelyne glycol coolant. The motors are capable of peak power exceeding 250 kW per core.

We are planning to order the following configurations:

HVH250-90 Single core
HVH250-115 Single core
HVH250-90 Dual Core
HVH250-115 Dual core

I know the prices for these motors are a bit higher than most people on here are looking for, but if anyone is interested in purchasing these exceptional motors please let me know as soon as possible. We will need 50% deposits to order with remaining 50% due upon delivery.
 

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Why is the price for the stuff you sell (do you sell anything?) such a mystery?

No prices here, yet you want 50% down to order. You post what is essentially an ad, yet it contains zero useful information.

No prices on the website either.

Are they that embarrassing?

Do you know how much business you lose by not publishing pricing? Even budgetary one off prototype is good.

Nothing more annoying to an engineer than being herded into calling sales. Many move on to other choices that do provide pricing, especially when they work long hours or weekends and you are closed.

Prices, datasheets, app notes, we call during a weekday if you pass criteria on all three. Welcome to the 3rd millennium.
 

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Why is the price for the stuff you sell (do you sell anything?) such a mystery?

No prices here, yet you want 50% down to order. You post what is essentially an ad, yet it contains zero useful information.

No prices on the website either.

Are they that embarrassing?

Do you know how much business you lose by not publishing pricing? Even budgetary one off prototype is good.

Nothing more annoying to an engineer than being herded into calling sales. Many move on to other choices that do provide pricing, especially when they work long hours or weekends and you are closed.

Prices, datasheets, app notes, we call during a weekday if you pass criteria on all three. Welcome to the 3rd millennium.
I think you'll very silly to be posting such a derogatory message.

Hollie Maea is a long time member and well-respected in this forum, always providing useful information and updates to EV technology and the industry.

Contrary to what you think, i dont believe this is a sales post. It is more to help people who want AMR Motors to get their hands on one. Better than dealing with Remy directly and doing your own upgrades to the cooling (unless you're part of Remy, as your username implies).

The prices were on the EV Drive website previously, but since they just revamped the site, they probably forgot to put it in. Still, a simple PM to Hollie Maea would suffice.

Looking at your post asking for the three criterias of "Prices, datasheets, app notes", I can tell you are new in this space. Many in this forum can tell you the price and torque/rpm curves of this motor off their head, because of the popularity these motors have.

and for you to be digging up an old thread, you probably need this information more than anyone else here. Maybe it would be good to be polite if you are asking for stuff.
 

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Discussion Starter · #4 ·
Hi Remy Martian,

Thanks for the feedback. As the main purchaser for EVDrive I know and agree that it's annoying to not have prices listed, and we are going to change that as soon as we possibly can. We just released our new website last week, and we are still working with AMR to finalize what the new prices are going to be. As soon as we have them they will be posted on our site and I will update this thread. We expect them to be close but not identical to what were there before.

I posted this thread because these motors have been unavailable for about two years, and I wanted people who have been waiting for them to be able to talk to us about getting in on the first order. In the future we will just have them stocked and people can just order them off the website. But that will be several more months.

A few updates since I first started this thread:

1. We are no longer planning to sell the dual core 90mm version. There doesn't seem to be a lot of demand for it. If someone really needs them, they can talk to us, but it would only be viable if they needed it in ongoing volumes.

2. The single core motors have been slightly redesigned. The changes are largely cosmetic but we will have new pictures and drawings within a couple of weeks.

3. We are no longer requiring 50% deposit for ordering. AMR has been purchased by a larger company and so they are not requiring us to pay for the motors entirely up front. However, for this batch we are only going to stock quantity 2 of each type (single 115, single 90, dual 115) beyond what we need for our internal projects and existing sales. So those units will be first come first serve. In 60 days or so we will decide what our next order will be. Like I said, by the end of this year we hope to have these things just stocked for immediate order. But there is a lot of capital required for holding inventory of expensive items.

4. This first order we expect to be available in July. The long lead time is a function of the leadtime for the Remy cores. Leadtimes should be shorter after that.

If you have any other questions, please let me know. I'm sorry my initial post angered you, Remy Martian.
 

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You post what is essentially an ad, yet it contains zero useful information.
Contrary to what you think, i dont believe this is a sales post.
Of course it's an advertisement. That's what this section of the forum is for, and this ad is a good example of what what it can provide: letting people know about a vendor having availability of something that forum members might want.

I do think that it is strange to offer a product with so little information. While the HVH motors are relatively well-known, it makes no sense to assume that everybody knows everything about them, especially when informative links could have easily been provided...
The HVH motors are no longer branded as "Remy"; they are from Borg-Warner:
HVH Series Electric Motor

"AMR" is AM Racing Inc.. I see no reason to expect people to know that,, but their website is basically useless anyway.

I can only guess that "EVDrive" is EVDrive. AMR packages of HVH motors, but with EVDrive model names, are described on the products page.​

Looking at your post asking for the three criterias of "Prices, datasheets, app notes", I can tell you are new in this space. Many in this forum can tell you the price and torque/rpm curves of this motor off their head, because of the popularity these motors have.
Why would someone reading an ad expect to survey members of the forum to collect information about the product being advertised? :confused: That's even more ridiculous than expecting every possible customer to individually request the price of a product... a stunt often pulled by sellers who don't actually have any stock, or who just like to negotiate separately with each customer to see how much they can get out of them. :rolleyes:

Knowledge of the price from another supplier is almost completely useless - we have no idea what AMR will charge EVDrive for these motors, or what EVDrive will charge retail customers. I wouldn't assume that the price will match the price at, for instance, EV West.

If the price isn't known yet, that's fine - but it would make sense to say so.

...unless you're part of Remy, as your username implies
Really? The company which makes HVH motors hasn't been Remy for three years. I assumed that "remy_martian" was a humourous play on Rémy Martin, the cognac maker.
 

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Discussion Starter · #8 ·
A lot (The price fluctuates somewhat but it's over 20 grand).

We aren't really marketing these anymore since AMR (now Cascadia) rescinded the offer for exclusive distributorship, and everyone knows where to go to get them without any markup.

We're working on changing the focus of our business somewhat to focus more on our inhouse built battery modules, and hope to have our first line of modules up for sale soon. Those aren't going to be cheap either but perhaps will be useful for people who need more power than you can get from salvage packs.
 

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We at EVDrive are getting ready to do a bulk order of AMR motors. These motors have been unavailable for the past couple of years, but AMR is starting back up production. EVDrive is now the exclusive distributor of these motors, and AMR will no longer be selling them directly, so this is the only place they will be available.

In the long term, we will be doing stocking orders, but if you want one of these motors in the next 6 months we would need to know to add you to this current order.

For those who are not aware, the AMR series motor uses Remy HVH250 cores which have internal oil cooling so that both the stator and rotor can be cooled, allowing for exceptionally high continuous power density. Unlike the Remy housed motors, the AMR motors integrate the entire oil system internally so that the motors can be cooled with a more typical water/ethelyne glycol coolant. The motors are capable of peak power exceeding 250 kW per core.

We are planning to order the following configurations:

HVH250-90 Single core
HVH250-115 Single core
HVH250-90 Dual Core
HVH250-115 Dual core

I know the prices for these motors are a bit higher than most people on here are looking for, but if anyone is interested in purchasing these exceptional motors please let me know as soon as possible. We will need 50% deposits to order with remaining 50% due upon delivery.
I have a few question to pose in hopes of curing my ignorance. One is about multiple motors. If I power each wheel with one motor is the relating power and torque totals cumulative or is it the same as one motor running them all. Whats the word on a custom end on the shaft for a CVJ half shaft. Basically putting the cup on the end of the shaft rather than the spline.
Marcus
 

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Since EVDrive is no longer offering HVH motors, it would make sense to conduct Marcus's discussion in a separate thread, in the Electric Motors section rather than the Vendors section.

If I power each wheel with one motor is the relating power and torque totals cumulative or is it the same as one motor running them all.
Why would the total power not be the total of the power of all of the motors? Of course with separate motors for each wheel, the power that can be delivered to any individual wheel is limited to what the attached motor can provide, and conversely each motor can only put out its full torque if the tire to which it is connected has enough traction.

So, one could not run double stacks on each rear wheel and singles on each front wheel (AMR 250-090)
Yes, of course you could - you would simply have twice as much torque and power at each rear wheel as at each front wheel. A more rational (and much less expensive) configuration would be to use one 250-090 motor at each front wheel and one 250-110 motor at each rear wheel; dual-core motors are used when a designer is desperate for more power than a single core can provide and someone else's pocket is deep enough to double the cost of motors and controllers (inverters).
 

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oops. i typed something in and this is what they gave me. so the power is going to only one wheel rather than combining the power of four motors and sending that total combined power to two or four wheels. That's great, They would run at the same RPM front and back but power/torque difference between the front and back would not over or under drive the lesser or greater motors. It would be more fun to have a 500HP equivalent car to a 250HP car. If not closer to 1000HP.
I was looking at the motors on the B&W site and was unsure of the Diff between 250-90 and 250-115, as far as I could see it appears to be about 7-10 pounds. So Hollie had it backwards. I found the AMR 250-90's for sale years ago on EVWEST
 

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The 115 is a bigger motor, more HP and torque. The AMRs use the BW cartridges.

The torque front to back will be determined by how much current you supply to the fronts and the backs. Has nothing to do with how many you stack up.
 

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The 115 is a bigger motor, more HP and torque. The AMRs use the BW cartridges.

The torque front to back will be determined by how much current you supply to the fronts and the backs. Has nothing to do with how many you stack up.
So the 115 is what they call the double stack AMR 250 in the silver casing and the 90 is the single motor in the darker colored casing. wait. They call the double stack silver one a 250-90 as well on EVWEST site. The double runs at 420hp and 520 torque where the single runs at 210hp and 280 torque. I do see on the B&W site that running the single motor ,I assume, from 350 V to 700V does increase the duration of peak torque out to 9000+ rpm and peak 350 HP from 180 hp on the DOM curve. They have a 410- 075 that they call stackable that has near 1000 Torque peak but not any biger on the HP side. it is curious
 

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I was looking at the motors on the B&W site and was unsure of the Diff between 250-90 and 250-115, as far as I could see it appears to be about 7-10 pounds.
The 115 is a bigger motor, more HP and torque.
The first number ("250") is the diameter of the motor core, and the last number ("90" or "115") is the length of the rotor (in millimetres). Since much of the motor doesn't change the 28% increase in effective motor size doesn't result in anything close to a 28% increase in weight; the overall length just increases by 25 mm. Possible torque, and so possible power for a given speed, is essentially proportional to rotor length for the same diameter, but according to the EVDrive descriptions the -115 motor is not capable of the same speed as the -90 motor, presumably due to more windings without more voltage to drive them.

So Hollie had it backwards.
I don't know what you think Hollie Maea had backwards - there has been no comparison of motor or cartridge sizes and weights in this thread. If you are comparing specifications on the EV Drive website's motor product page - which are obsolete given that EV Drive isn't even really selling the AMR motors - I'll note that the dimensions in inches of the EVD250-115P1 are incorrectly converted to millimetres, or are for a different motor.

I found the AMR 250-90's for sale years ago on EVWEST
Yes, many retailers have listed HVH motors (by Remy, later by BorgWarner, and often by AMR using Remy or BorgWarner cartridges); some even have actually had them available. Don't believe a listing - contact them for real availability and prices.

The torque front to back will be determined by how much current you supply to the fronts and the backs. Has nothing to do with how many you stack up.
Obviously if you stack two cores you can get twice as much torque, by supplying the same torque to twice as many cores. But yes, you determine the torque distribution by telling each controller (every core needs its own controller) how much current to drive through the motor.
 

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So I would need to find Motors that are 500-1000 HP and relevant Torque, both depending on the amount of Volts applied to each one, if I wanted to rune a 500-1000 hp car with a motor at each wheel that are not connected by differentials, drive shafts and the like. They of course would be have to run in unison via the controllers. Then some kind of sensor system for an AWD/limited slip type operation
 

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Not obviously, Brian. He thinks he can bias torque by simply stacking motors.
The AMR 250-90 double stack which is longer and heavier than the single AMR 250-90 according to their description says that the peaks of "HP" and Torque are greater in the double stack than in the single motor. They caul it DUAL STACK not double stack . I think the kids would say "my bad" . I reckon this means the larger case encapsulates either a larger longer stator and armature (may have the improper wording here) or two of the same "cartridges" inside.
I am not talking about adding several separate motors one behind the other.
 

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So the 115 is what they call the double stack AMR 250 in the silver casing and the 90 is the single motor in the darker colored casing.
No, the -115 is the longer motor core. As Hollie Maea clearly described, the intended to offer both core sizes (-90 or 90 mm, and -115 or 115 mm) in single-core and dual-core versions, later decided not to offer the 90 mm dual-core (so it's not on their product page), and they don't really sell any of them anyway.

They call the double stack silver one a 250-90 as well on EVWEST site.
No, EV West lists (and may even sell) the AMR motors using HVH 250 cores in the 90 mm size in both single and dual core versions:
AMR 250-90: single-core 250-90
AMR 250-90D: dual-core 250-90

The double runs at 420hp and 520 torque where the single runs at 210hp and 280 torque.
Yes, two of the same cores means twice as much torque and power, using twice as much total current, at the same speed and voltage.

I do see on the B&W site that running the single motor ,I assume, from 350 V to 700V does increase the duration of peak torque out to 9000+ rpm and peak 350 HP from 180 hp on the DOM curve.
First, BorgWarner is not "B&W"... there's no "and" in the company name, and never has been.

The "S" ("single") and "D" (dual) motor versions have the same windings, but the S has them series and the D has them in parallel, so the S motors need more voltage for the same speed and suit a higher-voltage supply. The "O" means oil-cooled, and the "M" means a complete motor rather than just the core needing a housing.

They have a 410- 075 that they call stackable that has near 1000 Torque peak but not any biger on the HP side. it is curious
I don't know what you're using for an information source for this motor, but that's the same basic HVH motor design but in a much larger-diameter (410 mm rather than 250 mm) size; it is also shorter axially (length in the shaft direction), with a rotor only 75 mm long instead of 90 mm or 115 mm. It is not strange that a larger-diameter and slower-turning motor can product more torque but no more power.

Stackable just means that the housings are designed to bolt directly to each other and that the shaft is hollow (so one output shaft can go through more than one motor) or the shaft is designed so that each motor can accept the output of next motor on the other end from its own output - the HVH motor cores all have hollow shafts.

And torque has units: just "520" or "1000" means nothing, but if you add the correct units (such as pound-feet or newton-metres) it describes an amount of torque.
 
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