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(non-Ebay) Electric Turbocharger (Supercharger?)

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Looking good!!
You may have to add a small tank/reservoir to your cooling system in order to fill it and bleed the air out. You could probably use a coolant overflow bottle from any car. You may want to add a small fan to that radiator for static testing (on the dyno).

That compressor backplate looks good.

Jim
 
Had a crazy idea anyone seen the way the dyson vacuums work. They have basically a electric turbo maybe someway to use there motor and compressor wheel for this :)
It's really funny you mentioned that LOL when I saw one of their commercials it looked like an electric motor in a compressor wheel! It's definitely worth looking at that's for sure.

Vacuum cleaner turbos... What's next? :D
 
Exactly what it is and he even tells you how many Rpms it spins at up to 110k Rpms! What's a normal turbo?

It depends on the compressor wheel + housing. A 20G (which is what I'm using) will benefit from 110k (which is what the electric motor I'm getting made spins at). The real question here is how much power can those little motors generate (volts and amps or kw)?
 
Hey guys!

It's been a while since I posted an update. I heard back from the Electric motor company on August 19th. The electric motor got so hot during testing that some kind of metal (Aluminum Alloy )holding the magnets/winding's melted causing a minor explosion :hellyeah:

They are now going to replace the aluminum alloy piece with a titanium alloy piece to see if it'll withstand the heat the internal of the motor is generating. So to sum it up.. We are still waiting for a SAFE electric motor to run this on... Have no fear though.. I don't plan on giving up any time soon; I've actually thought up of back up plans in the event we can't get the direct drive motor to work and still generate power :D

Here are some of the "Titanium" alloy pieces they are going to be using
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On another side note... I got batteries and they are all wired up!!!!! I originally bought four but the UPS had dropped the batteries which broke the connectors. I called the battery company and they said I could just throw the batteries they sent me away and they'll send me 4 new ones. Well... my neighbhor convinced me not to throw them away and we grinded down the remaining terminals; put bolts on and poured jbweld over top of the bolts... also held them down with duck tape LOLoLOL some of those terminals are a little wacky but... hey! four extra working batteries right?

Can you guess which are the ones I had to repair?

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Also.. for the sake of.. Back to the future LOL... I did a honda kid thing -___-. My excuse? Eh it's a prototype and it makes it look cool (not really.. LOL)


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My honest reasoning for leaving the wires out were to see if it would reach and just plain ease of access... The final product (Going in my Audi...) will most definitely not have this.

Any who.. Stay tuned!
 
Don't use duct tape around electrical components! It is conductive and can cause bad things to happen.
What is surprising that the motor got THAT hot. Maybe they tested it without water cooling?
 
Don't use duct tape around electrical components! It is conductive and can cause bad things to happen.
What is surprising that the motor got THAT hot. Maybe they tested it without water cooling?

It's very possible... 48 volts @ 225amps is definitely nothing to play around with.. if you think about it... a welder runs at what? 5-6kw? this is something that would run at 10kw so you could almost imagine what's going on inside there LOL. They are still moving forward with the process though so I'm sure they'll figure it out! :)

As a side note... I speak of the welding thing from um... "accidentally" touching the hot and ground wire on some copper I had? umm.. yea some copper melted.. some kinda just disappeared somewhere LOL worst case scenario is that I walk away with an awesome welder LOL
 
Sorry to hear about your setbacks with the electric motor. If the motor's internal temps are getting hot enough to melt aluminum (1221*F), you have bigger problems than just switching to titanium. I would think that you would melt solder joints and wire insulation on the motor windings before you would melt aluminum.

Standard neodymium magnets (Type N) will begin to permanently lose their strength at 176*F. There are better magnets (Type NEH) that will hold their strength until 392*F but this is still far below the melting point of aluminum.

What gauge wire did you use to wire up your batteries? For 225 amps, you should be using 4/0 battery cables but you MAY get away with 3/0 cables for short bursts. You will also need heavy duty battery terminal connectors on the cables. If you try to use the wiring shown in your pic, make sure that you have a fire extinguisher handy.

Jim
 
Sorry to hear about your setbacks with the electric motor. If the motor's internal temps are getting hot enough to melt aluminum (1221*F), you have bigger problems than just switching to titanium. I would think that you would melt solder joints and wire insulation on the motor windings before you would melt aluminum.

Standard neodymium magnets (Type N) will begin to permanently lose their strength at 176*F. There are better magnets (Type NEH) that will hold their strength until 392*F but this is still far below the melting point of aluminum.

What gauge wire did you use to wire up your batteries? For 225 amps, you should be using 4/0 battery cables but you MAY get away with 3/0 cables for short bursts. You will also need heavy duty battery terminal connectors on the cables. If you try to use the wiring shown in your pic, make sure that you have a fire extinguisher handy.

Jim

I'm sure that the Electric Motor Company will figure all of that out. Heck the motor blew when they had it on their test bench so I'm sure they are going back to the drawing board on this one.

As far as the gauged wire goes... I used 8 gauge wire but I'm guessing I'm gonna have to change that right Jim? :)
 
So happy to see this coming together. You'll need much more than 8 gauge wire for that. Maybe 0 or bigger like what jim said (I'd go with what he says). Cant wait for the dyno!!
 
@jim95redgsx and @Chumpaumpalumpa

I got a "secret" for this project going related to another company possibly helping me out and was wondering if you could PM your contact information... I want to bounce something off you guys and keep it offline.

If you can't then that's cool; At least help figure this out:

If we wanted to make this electric turbo churn out 12PSI on our 2.0... what would our Ideal PR and CFM be?

strange "backwardish" question I know... but this other company asked me this and are expecting an anwser :)

They want us to approach this as if it were the Peak PSI

(Strange question... Also don't focus on the 20G for this question..I can provide more details via PM :) )
 
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This website still won't let me start a Private Conversation with you. I'm sending you my e-mail address to your "spam" e-mail that you listed in Post #275.

Jim
 
@jim95redgsx and @Chumpaumpalumpa

I got a "secret" for this project going related to another company possibly helping me out and was wondering if you could PM your contact information... I want to bounce something off you guys and keep it offline.

If you can't then that's cool; At least help figure this out:

If we wanted to make this electric turbo churn out 12PSI on our 2.0... what would our Ideal PR and CFM be?

strange "backwardish" question I know... but this other company asked me this and are expecting an anwser :)

They want us to approach this as if it were the Peak PSI

(Strange question... Also don't focus on the 20G for this question..I can provide more details via PM :) )
PM sent. you using a td05 or td06 housing?
 
I just heard back from the motor company! I guess Jim is the man with answers! looks like they are going to replace the magnets too!

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Man I'm excited LOL
 
Jesus...

How much is it costing you to pay for someone else to do the R&D on this? Cool project, fo sho. Looking forward to the end result.
 
Jesus...

How much is it costing you to pay for someone else to do the R&D on this? Cool project, fo sho. Looking forward to the end result.

The cost is slowly getting up there for the electric motor but I'm dedicated to finally squashing the whole "Electric turbo's don't work" stigma. Money talks BS walks right?

The truth is though... I'm excited over the idea of insta-spool off a 20G. To top it off.. this is with a smaller 10KW (13.4HP) motor... the company I'm working with provides motors up to 25KW (33.5HP) so just think of the possibilities, compressor housings/wheels for this!

I stay up at night thinking of pairing two 25KW electric motors with two GT30R's and how amazing it would feel to step on the gas....I've actually been contemplating buying another DSM strictly for this.

slowly but surely we're making progress!
 
What will be the intial cost to buy one?

I'm still thinking that it's going to be sub 1k if I can get a whole sale together. That price won't include batteries though.. I'm not ready to take that liability yet. Batteries cost me 250 but I might get them lower for you guys via a separate whole sale.

One of my priorities is to keep it affordable!
 
This thread is getting huge I love it. LiPOs for the win.
indeed! :)

Have you started something like a Kickstarter or some other 'crowd funding' for this project yet?
Not yet. Keep in mind that electric turbo's still have a bad light on them thanks to ebay sellers and their fake 500hp making 12 volt superchargers. If I'm going to do this right; I want to make a working prototype running on a dyno and break the stigma once and for all.

What I want to avoid is to open a crowdfund only for it not to be funded just because people think this is another ebay charger. I want data and proof to bring to the table for you guys.
 
That is a good point. Although what you could do is get in touch with Mighty Car Mods and offer them one to test. They did a nice "why electric turbos are junk" video a while back, so they might be interested in one that is not. If not them, then some other small-ish car related channel.
 
That is a good point. Although what you could do is get in touch with Mighty Car Mods and offer them one to test. They did a nice "why electric turbos are junk" video a while back, so they might be interested in one that is not. If not them, then some other small-ish car related channel.

It is pretty funny you mentioned Mighty Car Mods! I tried to reach out to them a couple of months back through their facebook page and didn't get any response back. I will be doing reaching out to someone though! First things first though.. we need a prototype to show off :)

Have I mentioned that I'm building a digital boost reader to come with the electric turbo? I'm gonna use it to regulate pressure (somewhat similar functionality to a wastegate)

While I wait for the motor; I've been planning out how to make the supercharger tuning software work and such.
 
It is pretty funny you mentioned Mighty Car Mods! I tried to reach out to them a couple of months back through their facebook page and didn't get any response back. I will be doing reaching out to someone though! First things first though.. we need a prototype to show off :)

Have I mentioned that I'm building a digital boost reader to come with the electric turbo? I'm gonna use it to regulate pressure (somewhat similar functionality to a wastegate)

While I wait for the motor; I've been planning out how to make the supercharger tuning software work and such.
Check out out Velocity Labs on youtube and maybe even Jafromobile. They both should respond and I'm sure something like this would appeal to Jafro plus he has all the skills necessary to make this work. He's currently running a 20G on his GSX so it would be a good contrast with performance.
 
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