AEVA Forums

Oil cooling does work and it works well on BLDC and AC motors.....brushed motors it seems to be another matter unless specialist brushes are used. I tested a small hobby brushed motor and it was using 8amps in oil vrs 1 amp in air. Also tested a small BLDC motor of similar size and it was 2 amp in o...

Do you have any pictures of the interior/exterior condition, the electronics etc?

I registered a bike recently in Queensland under Ncop14 and i was told by both Queensland transport and vehicle standards that i needed to keep a battery for auxiliary purposes. As its mainly for time when you run our of juice where you 12V converters will be useless.

Oil = spark suppression due to no air, you will get much much less arcing in a brushed motor due to the oil. May have to use special brushes, i don't know But hey, i have never really played with brushed motors and atm i am trying to figure out if i can run water into a brush less motor if i pull al...

Bahh, non conductive oil = Cheapest, thinnest automatic oil and you are 98% there

That is what they use on diy full computer submersion projects. Could use the controller as a oil reservoir. Do a full system with radiator etc and it would be killer.

If the drag is anything similar to filling a hub motor with oil then it will be negligible compared to the extra efficiency in use when the motor is running at 70 degrees rather then going over 100 at the coils. Resistace in windings goes up fast with heat. Automatic oil is almost watery in flow, no...

I wonder how easy it would be to seal up a pair of Warp 8/9 motors and pump cooling oil thru them, would be lighter and more powerful to use a pair specially if run at the higher voltages. Never personally looked at the motors. Also alot easier on the brushes if they can be immersed in the oil too a...

If you want to build a performance car i would highly suggest ditching the gearbox. Google Rimac and how he did his old BMW. Also the biggest single motor is not your best option if you have the ability to build adapter plates etc, twin motors are much easier to get high powered controllers and are ...

Golden motors are not really the greatest or most reliable. Mars motors are as bad as cheap chinese hubs just with a bigger price tag. Either way both above your power needs. On a mini quad you could easily get enough power for your daughter from a 9C hub motor or similar largeish direct drive hub t...

Well hopefully you dont need a extra rider to get the race going. This little black bike wont cut it. 30kw and voltage speed limited is not going to cut it against that sort of power, i wouldnt just be slow i would be dangerous :) Hopefully if all goes well with selling the bike in the new year i ll...

How much does it actually cost to run in the races? If you need to make up numbers i can definitely bring my motorbike up from the Gold Coast to make up the numbers. Hopefully there is not a minimum speed as until i build the next one the bike only does 120km/h.

Is there still going to be a meeting on the Wednesday the 18th? Or is that cancelled, I would have loved to come to the party as i missed the last meeting with the bike but i will never be able to get Sundays off due to work.

The bike is running well atm, finally changed the hall connections around so it was running even better then before......and now i have found out one of the controllers was still not setup properly and was running sensor less forcing the other one to do all the work. So one of the 2 decided to die :...

Sorry but conversions will not be LAMs approved unless you some how manage to get them to put it on the list. The bike i converted and registered recently is a LAMs bike at 200CC but when registering it as a electric conversion with 0cc they could not put it as a LAMs bike due to not been on the lis...

My motorbike uses a single pot throttle to control 2 controllers. If you are worried you can also use a cycle analyst v3 to produce a stronger output. Either way if everything is connected to the same battery pack you can do it. Just only connect the source and negative from one controller and then ...

Well its finally registered, took many months to get it legal but it is now approved, registered, plated and insured. Took almost 2 months of getting dicked around by my first approved engineer, 2 weeks for the new approved engineer to submit his items properly, 2 weeks for it to be conditionally ap...

By members, is that members of the forum or is there a specific Aeva members group?

Hopefully i can get past all the red tape by then and manage to get my electric motorbike up there. Should be great to meet up with like minded people.

Yeah IGBTs are what i am hoping are going to be the future for my electric motorbike/car builds. The car power stage i am looking at using is the Honda Civic hybrid MDM, it has 600V200A rated IGBTs and 450V rated caps. The main bonus with the honda IGBT is that its well documented, cheap, readily av...

The Chinese controllers work really well if modified correctly and also running them with a CA V3 gives extremely good control with torque control. Aside from that for the even higher power systems I ll be using a custom logic controller based on Lebowski's chip to control a power stage from a car. ...

Yeah its CRs motor.....but heavily modified for mid mount high voltage running and would be running on better programmable controllers as i am now finding out that the controllers i have are soft start. Which in a way is kind of good as i have ~24kw showing on the CA last time i tested the bike but ...

Hello everyone, I am looking at doing conversions on motorbikes. Starting at about 20kw and heading up to 80kw in a single motor. Using a mid mounted high efficiency hub motor at 135V. I have built a few bikes around this motor and can say it only truely shines in a mid drive setup.   Due to the siz...

Be careful with changing the swing arm and rear brakes as it may mean you will have to get a brake test done on the bike. If you want to lower the financial burden you could always try having a look at http://www.endless-sphere.com/forums/viewtopic.php?f=31&t=40859 and the other motors John has. I h...

Any suggestions on how to get around doing a brake test when the approved engineer has passed the vehicle and is very happy with everything but the Queensland Vehicle Standards senior policy officer my bike is going through is adamant that i needs a ADR brake test due to changing the rear wheel and ...

The slots are for cooling, not worried about water ingress as anything that will get into the motor will be rain/spray moving very very quickly moving in and then out and all the connections are smeered in the black coating so its pretty much water proof unless you dunked the whole thing in a pool. ...

Hello, Any chance you can do me a huge favor and count how many laminations are in 1cm? I am trying to figure out the avg thickness of lamination in this size motor as i might be able to get a pair from work for nothing to rewind. Though i will be attempting to rewind as BLDC with multiple controlle...