# New "Gem a.c. motor conversions 8kw motor" Thread

**URL:** <https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981>\
**Category:** GEM Forum\
**Created:** [June 9, 2020, 1:14am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981 "2020-06-09T01:14:45Z")\
**Posts on this page:** 20\
**Page:** 1

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**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 9, 2020, 1:14am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/1 "2020-06-09T01:14:46Z")

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We are getting a few in the field now and could use some feedback.

I have converted a:  
2018 E2 8kw  
2008 Tomberlin E4 5kw  
Tomberlin Anvil 7.5kw  
Zone golf cart 8kw  
Ruff-N-Tuff 4wd 8kw and 48v Polaris Ranger controller

Kit sent to @grantwest for new style E4. Reports many trouble free miles.

@MikeKC has done several conversions and sent out a few kits.  
Hope to get some feedback soon.

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**Author:** ![Monkeyron](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/monkeyron/32/6634_2.png) [@Monkeyron](https://community.electricforum.com/u/Monkeyron)\
**Post date:** [June 10, 2020, 9:49pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/2 "2020-06-10T21:49:36Z")

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Sounds a bit costly? Average cost?  
Does it require Lithium conversion to take full advantage?

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**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 10, 2020, 10:23pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/3 "2020-06-10T22:23:29Z")

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It should work fine with lead. There is the extra weight penalty, but other than that it has better speed and power than any of the dc motors.  
I believe Grant paid $1k for his blue torque motor.  
@MikeKC can quote price for the kit. It’s been between $1500 and $2000 complete.  
Smaller Chinese ac kits are available for similar price, but they will not plug-in, nor be custom programmed to driving style, regen, and speed.

Anyone near Mn., KC., @grantwest, or @Troyin909, will have access to programmer.

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**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\
**Post date:** [June 10, 2020, 10:31pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/4 "2020-06-10T22:31:25Z")

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You have not priced AC conversion kits much… Golf cart conversions are going for 3K - 4K.

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**Author:** ![Troyin909](https://avatars.discourse-cdn.com/v4/letter/t/57b2e6/32.png) [@Troyin909](https://community.electricforum.com/u/Troyin909)\
**Post date:** [June 15, 2020, 4:34pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/5 "2020-06-15T16:34:56Z")

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Everyone should love the change. There’s no way toy drive a conversion and don’t love the difference. It’s a complete new feel to the drive. Anything worth having will cost you something. Effort, time, money.

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**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\
**Post date:** [June 15, 2020, 6:57pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/6 "2020-06-15T18:57:05Z")

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I now have installs in:

2008 E4 - 8kw motor  
2000 E4 - 8kw motor  
2005 EL - 8kw motor  
2008 E6 - 8kw motor  
2005 EZ-GO Golf Cart - 8kw motor

Two more kits went out last week -  
Two more will go out this week -

I think testing is done, price just went up 🙂

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**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 17, 2020, 7:51pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/7 "2020-06-17T19:51:49Z")

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Hopefully this on on topic enough, but when you put in the AC motor do you still plop in that rubber bumper on the inside of the shaft?

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**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 17, 2020, 8:23pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/8 "2020-06-17T20:23:20Z")

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No bumper needed. IMO.

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**Author:** ![Monkeyron](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/monkeyron/32/6634_2.png) [@Monkeyron](https://community.electricforum.com/u/Monkeyron)\
**Post date:** [June 18, 2020, 5:00am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/9 "2020-06-18T05:00:13Z")

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I thinking of making the AC change to my 2008 E4 Special edition. Getting the GE 7hp motor rebuilt now and the T4 is good so both for resale. That should help cut the cost. Getting a Bolt kit from Michael soon. With all these upgrade and my 24" tires on 17s I’d be good for a low speed fly by!

 ![20200410_152853](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/a/a814a26633980f9f27e6bcbeb40683e7f2461117.jpeg)

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**Author:** ![Monkeyron](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/monkeyron/32/6634_2.png) [@Monkeyron](https://community.electricforum.com/u/Monkeyron)\
**Post date:** [June 19, 2020, 2:11am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/10 "2020-06-19T02:11:27Z")

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Are the kits using the original display at all?  
Was thinking, can the T4 output to a AC inverter thus utilizing the same display for some details?

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<div class="post-metadata">

**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 19, 2020, 2:25am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/11 "2020-06-19T02:25:25Z")

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The t4 could be left in if you want. We considered, but decided against.  
The only thing lost is speedometer and error codes.  
Many ways to get a speedometer. GPS, Bluetooth, and bms, for example.

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**Author:** ![Monkeyron](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/monkeyron/32/6634_2.png) [@Monkeyron](https://community.electricforum.com/u/Monkeyron)\
**Post date:** [June 19, 2020, 3:52am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/12 "2020-06-19T03:52:58Z")

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I see. I have many tablets that can be implemented for that. Many types of mounts will work as well.

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**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 19, 2020, 10:33am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/13 "2020-06-19T10:33:48Z")

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I bought [this cheapo doo-dad](https://amzn.to/3fBhDS3) as temporary solution. Error codes are pretty much the only thing the old display did for me.

_edit_ And I just bought the CanTranslator @MikeKC mentions below. Because I need all the things.

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**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\
**Post date:** [June 19, 2020, 12:44pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/14 "2020-06-19T12:44:24Z")

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> [@8KW Motor - Sevcon Controller - Digital Dash](https://community.electricforum.com/t/8kw-motor-sevcon-controller-digital-dash/18438):
>
> Ok been working with the guys on the 8KW Conversion, now we have a viable dashboard. Here is a 16’ GEM E4 with: 8KW AC Motor Sevcon Gen4 Size 6 Controller ThunderStruck CanTranslator Bluetooth ODB2 transmitter Android Tablet Torque Pro (4.99) Cost for the Can Translator and Bluetooth Transmitter is 120.00 @Inwo@grantwest@LithiumGods@bundcur

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<div class="post-metadata">

**Author:** ![Monkeyron](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/monkeyron/32/6634_2.png) [@Monkeyron](https://community.electricforum.com/u/Monkeyron)\
**Post date:** [June 20, 2020, 7:21pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/15 "2020-06-20T19:21:40Z")

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So when and where to enter an order?

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<div class="post-metadata">

**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 20, 2020, 8:44pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/16 "2020-06-20T20:44:05Z")

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See if @MikeKC has enough parts for another one. He has plans to pick up more parts in the next few weeks.  
Price varies somewhat with what is included.  
I know he has offered it complete with the phase cables.

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**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\
**Post date:** [June 20, 2020, 11:29pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/17 "2020-06-20T23:29:52Z")

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Sent you a PM  
@Monkeyron

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<div class="post-metadata">

**Author:** ![Jdalot](https://avatars.discourse-cdn.com/v4/letter/j/d9b06d/32.png) [@Jdalot](https://community.electricforum.com/u/Jdalot)\
**Post date:** [June 28, 2020, 5:08am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/18 "2020-06-28T05:08:30Z")

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Hello I’m new to the forum I have a 2000 4 seater that I Iifted to put on 27 inch tires i was thinking of going to a ac setup look for more speed and as much torque and I can get what do yall recommend. Thanks in advance

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**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, 2020, 10:34am UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/19 "2020-06-28T10:34:20Z")

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The older Gems have little room between gearbox and shock.  
We should have a review soon of a short 5kw motor install.  
A big Pmac is available that may fit, but we don’t have a working program for it. I installed one in a test vehicle last week.  
I it works out, speed will still be limited to \<5k rpm. What gears are in a 2000?  
What speed do you need?

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<div class="post-metadata">

**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, 2020, 11:23pm UTC](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981/20 "2020-06-30T23:23:51Z")

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I’m down to the last 2 used S4 Sevcon controllers, then price will go up. Unless we find another source of low cost parts.

[Next page](https://community.electricforum.com/t/new-gem-a-c-motor-conversions-8kw-motor-thread/18981.md?page=2)
