# AC motor for Gem **URL:** \ **Category:** GEM Forum\ **Created:** [June 23, 2018, 11:38pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944 "2018-06-23T23:38:20Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [June 23, 2018, 11:38pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/1 "2018-06-23T23:38:20Z")
Investigating a more efficient motor for Gems. This is a 10hp PMAC motor designed for a 35mph NEV. 19 spline transaxle mount. Available at low cost on surplus market, as well as the controllers. ![pmac%20motor](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/a/a10b861c28a91e7a6b35793be4e6f94d53a72d21.png) ---
**Author:** ![Gem\_e2](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gem_e2/32/1849_2.png) [@Gem\_e2](https://community.electricforum.com/u/Gem_e2)\ **Post date:** [June 24, 2018, 7:03pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/2 "2018-06-24T19:03:45Z")
nice are this 19 splines ? ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [June 24, 2018, 7:42pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/3 "2018-06-24T19:42:02Z")
Yes, have some samples coming. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [June 25, 2018, 12:21am UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/4 "2018-06-25T00:21:33Z")
There is a 10hp induction motor on Ebay. Transaxle mount. Need to find a control for it. ---
**Author:** ![wrascal](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/wrascal/32/1813_2.png) [@wrascal](https://community.electricforum.com/u/wrascal)\ **Post date:** [June 25, 2018, 9:15pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/5 "2018-06-25T21:15:57Z")
I heard you can get regeneration from the AC motors. Is that one of your goals? At 35 mph, that is certainly an improvement. It will be interesting to compare power consumption over the DC motors. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [June 25, 2018, 10:18pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/6 "2018-06-25T22:18:58Z")
Yes, efficiency, regen, no brushes, and light weight. I’ve had no issues with the sepex Gem motors myself. Seems others do. My E2 might be sold, so I’m not sure if I want to tear into a perfectly running E4. I’ll make Grant do it. He’ll try anything. 🙂 ---
**Author:** ![diymatt](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/diymatt/32/1822_2.png) [@diymatt](https://community.electricforum.com/u/diymatt)\ **Post date:** [June 27, 2018, 8:55pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/7 "2018-06-27T20:55:12Z")
I wish I had all the loose money you guys have. This seems like a good opportunity to make my 4wd dreams come true. 😂 ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [June 27, 2018, 10:37pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/8 "2018-06-27T22:37:13Z")
I wish I had all the money I wasted on failed projects. Then I could afford to give this stuff away. 🙂 I just spent $500 on a PMAC motor that’s to big to fit. Now I’m getting 2 10hp ac induction motors that I may never figure out how to use, if they even fit. ![induction%20motor](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/5/5cc2d7e60d2625000c1af31ab3af435a51a757a9.png) ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [June 27, 2018, 10:39pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/9 "2018-06-27T22:39:37Z")
![MVC-013F](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/8/8bf8bf5a09a82aab4968f0f08299279de3e04a68.JPG) ![MVC-012F](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/1/1ec5c16ea3da127bb0572bbd080ea380ae9283a2.JPG) ---
**Author:** ![2002](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/2002/32/2623_2.png) [@2002](https://community.electricforum.com/u/2002)\ **Post date:** [June 27, 2018, 11:58pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/10 "2018-06-27T23:58:00Z")
Has anyone tried the brushless DC motors from Golden? I was browsing them thinking if it would be possible using the 3 or 5 kW motors, one per rear wheel with the regen braking system and depending how it works maybe add two up front. All with their own controllers tied to single break and accelerator. M@ ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [June 28, 2018, 12:46am UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/11 "2018-06-28T00:46:13Z")
I looked at them, but haven’t tried any. You’re looking at hub motors? Then I came across NOS 1/2 price. Little support, but good quality parts. ---
**Author:** ![2002](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/2002/32/2623_2.png) [@2002](https://community.electricforum.com/u/2002)\ **Post date:** [June 28, 2018, 1:02am UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/12 "2018-06-28T01:02:26Z")
Yea the hub motors, price with open access controller made it sound nice, plus the idea of 2-4 motors and primarily regen braking. ---
**Author:** ![Mr.Vern](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/mr.vern/32/2658_2.png) [@Mr.Vern](https://community.electricforum.com/u/Mr.Vern)\ **Post date:** [June 28, 2018, 1:30am UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/13 "2018-06-28T01:30:52Z")
I’m very intrigued by this. I was looking at AC conversion on my ClubCar but with the motor in the GEM being so flexible, I can’t justify the expense. Although it would be a very fun project to tackle. I guess I’ll have to see where this goes and what my winter looks like 🙂 ---
**Author:** ![Jeffrey\_Gillette](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/jeffrey_gillette/32/791_2.png) [@Jeffrey\_Gillette](https://community.electricforum.com/u/Jeffrey_Gillette)\ **Post date:** [June 30, 2018, 1:17am UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/14 "2018-06-30T01:17:53Z")
INTERESTING THREAD! Please keep posting as you go…for the surplus motors ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [June 30, 2018, 1:43am UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/15 "2018-06-30T01:43:54Z")
If it’s up to me, may never get done. Everything about it is new to me. I have the secon sw. $850. A cable made up. Waiting for license. Have 1 piece Pmac motor and one Sevcon 500 amp controller. Soon should have a few more controllers and 2 ac induction motors. Talked to Grant today. He believes that the Pmac will fit on 2013 model. Older models like mine have the ram horn frame wrapping the motor. 10" D motor will not fit. I don’t know about 2002. Some pictures will be helpful. The ac motor should fit on any model. I may concentrate on that one first. If anyone has a contact for Sevcon programming and motor tuning, I can get a sample at low cost for testing. ![MVC-003F](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/3/3918f083ea4b6566b229b993828bf7a12b34c708.JPG) ---
**Author:** ![stretchkart](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@stretchkart](https://community.electricforum.com/u/stretchkart)\ **Post date:** [July 3, 2018, 2:23am UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/16 "2018-07-03T02:23:07Z")
Have you received your AC induction motors yet? ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [July 3, 2018, 3:04am UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/17 "2018-07-03T03:04:02Z")
No, delayed for the 4rth. I do have controller and sw. If you want to jump in. Find someone who can work with Sevcon. I have the file for the Ebay motor, but not the knowledge or the time. ---
**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\ **Post date:** [July 3, 2018, 11:00pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/18 "2018-07-03T23:00:10Z")
Here is what the front of my 2013 looks like it has NO RAM horns ( the square tube the wraps around the motor) the motor has lots of room ![IMG_4540](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/2/2a54d7cfcbbd019c348dac2b7a7c26ef0f647d5e.jpg) ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [November 11, 2018, 10:49pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/19 "2018-11-11T22:49:16Z")
Take a picture from the side showing what replaces them. ---
**Author:** ![stretchkart](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@stretchkart](https://community.electricforum.com/u/stretchkart)\ **Post date:** [November 13, 2018, 3:11pm UTC](https://community.electricforum.com/t/ac-motor-for-gem/13944/20 "2018-11-13T15:11:40Z")
> [@2002](#): > > Has anyone tried the brushless DC motors from Golden? I was browsing them thinking if it would be possible using the 3 or 5 kW motors, one per rear wheel with the regen braking system and depending how it works maybe add two up front. All with their own controllers tied to single break and accelerator. I think that would be a very interesting setup. Bypassing the gearbox, better efficiency and quieter. [Next page](https://community.electricforum.com/t/ac-motor-for-gem/13944.md?page=2)