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Old 11-14-2017, 08:48 PM   #1 (permalink)
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ND Miata - '15 Mazda MX-5 Special Package
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Corovelo

1kWh
3000w

Probably need another day or two of assembly.



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Old 11-14-2017, 09:59 PM   #2 (permalink)
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There are several similar designs like this. See recumbents.com for another version. These are quite cost effective. I use white Gorilla tape and 5/8" OD PVC hoops to stabilize some of my shells.
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Old 11-14-2017, 10:20 PM   #3 (permalink)
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Took a break from assembling the body to play with my phaserunner - previously I had been running a no-name Chinese controller with the partially faired trike, and was topping out around 40mph. Unloaded, wheel speed peaked at ~45mph. Tweaking the field weakening setting, I was able to get a motor speed of ~5100rpm, or ~51mph. Going this far had very undesirable effects on power consumption, but a very slightly field weakening effect seemed to actually improve (unloaded) power consumption at max RPM.
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Old 11-15-2017, 04:53 PM   #4 (permalink)
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Turn signals and running lights to come soon!










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Old 11-16-2017, 03:51 PM   #5 (permalink)
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Don't forget the lap belt.
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Old 11-23-2017, 12:08 PM   #6 (permalink)
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That thing is badass. It looks simple to make, but will more likely than not be very effective at reducing load.

Let us know what specs you find it to have when you can. Max speed, CdA from coast down testing, dimensions, weight of trike/shell, ect.

Thanks for posting this.
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Old 11-23-2017, 12:13 PM   #7 (permalink)
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Tuft test tuft test tuft test!
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Old 11-24-2017, 08:51 PM   #8 (permalink)
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I'll get around to it, thanksgiving has had me away from my projects.

I will say that it's nasty-sensitive to crosswinds now. The bare trike, though it used more energy, was far more forgiving when it was windy. I find with the faring I have to keep it under ~20mph when there's more than the faintest breeze, or it gets a bit scary.
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Old 11-25-2017, 10:17 PM   #9 (permalink)
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A lower nose and a rounder cross section will help. It needs mainly more down force on the nose.
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Old 11-26-2017, 05:48 PM   #10 (permalink)
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Quote:
Originally Posted by Grant-53 View Post
A lower nose and a rounder cross section will help. It needs mainly more down force on the nose.
I can't take too much off the nose because I need room for my feet, but I'm hoping this will help:






In other news, I've been fussing with getting my controller programmed correctly. It doesn't particularly like that I have a motor which hits 4-5000rpm, and regularly throws phase overcurrent faults when the rear wheel loses traction. I also have what appears to be a faulty Cycle Analyst, and have been working with the manufacturer to see if I can fix it, before I resort to sending it back for RMA.

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