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My girlfriend now has racing fever after drag-racing a 'vette in my Tesla and winning

Discussion in 'Electric Conversions' started by zack, Oct 24, 2011.

  1. zack

    zack Member

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    She's made me promise that we'll build an electric dragster that can beat any muscle car we encounter. I figured I could find the most useful up-to-date information about the most powerful motors, best packs, and best trans-axles available today in this part of the forum but there's a lot of older information here. Is anyone up-to-date on the best way to find out how to convert a modern muscle car into an electric racing machine (probably drag-only... we don't really want to die) that's essentially unbeatable? I have a guy who is ready to do the conversion for me if I'll get all of the parts together. I'm trying not to break the bank on this project.
     
  2. richkae

    richkae VIN587

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    You want to go check out: National Electric Drag Racing Association ( National Electric Drag Racing Association )
    They have a mailing list ( old school internet ) that you want to get on and ask for specifics.

    The builders of most of the quickest EVs in the world will be found there:
    http://www.plasmaboyracing.com/whitezombie.php
    KillaCycle - Worlds Quickest Electric Motorcycle
    OCC/Lawless Electric Drag Bike Sets 1/4 Record - Motorcycle USA

    Black Current III

    You will be faster if you can start with a lighter car.
    Building a 10 second capable car should be totally doable, especially if you use LiPo.
     
  3. dhrivnak

    dhrivnak Active Member

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    You may want to check out Jack Rickard at EVTV Motor Verks | Electric Car Conversion Videos. NetGain makes a fine DC motor which will be noticeably cheaper than AC. But be warned a serious drag car will not be inexpensive. The Tesla will also be hard to beat. I raced against many conversions and the Tesla won. A serious drag car can EASLY run $50,000 for a budget racer.
     
  4. richkae

    richkae VIN587

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    For a long time now I have wondered what it would take to build a replacement pack for the Roadster that was lighter.
    Cells exist that could build a 100 to 200 pound pack with the same power output for a short time, but with much less capacity.
    I think that could get a Roadster Sport down into the 11.7 second range in the 1/4 mile ( just from plugging weight reduction numbers into various web based 1/4 mile calculators )
     
  5. TEG

    TEG TMC Moderator

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    Wow, richkae covered most of the bases in record time there.

    Here is another link of possible interest as well:
    Current Eliminator
     
  6. richkae

    richkae VIN587

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    Woohoo I beat you TEG!
     
  7. TEG

    TEG TMC Moderator

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    I have a feeling, completely unconfirmed, that the Roadster is a bit of a "matched set" of components that are "hard coded" to talk to each other.
    The ESS has a bunch of computers in it to monitor the cells. If you didn't have something speaking "Roadster protocol" to the PEM it might refuse to send power to the motor.
    Tesla tends to build as much as they can themselves, and keep it mostly proprietary, so swapping components could be difficult.
    I suppose one could build an "ESS simulator" that just kept saying "I am a happy pack" to any other inquisitive devices in the car.
     
  8. TEG

    TEG TMC Moderator

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    You have more track time experience. I think you started to launch on yellow...
     
  9. richkae

    richkae VIN587

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    Oh absolutely - this would be the hardest part of the project, learning how to convince the rest of the computers in the car that your replacement battery walked like an ESS and talked like an ESS and served juice like an ESS.
     
  10. TEG

    TEG TMC Moderator

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    Then you take 500lbs out of the car and find it still performs the same. The firmware saying to itself "all Roadsters accelerate the same."
    Might have to be more intrusive to convince it to take advantage of some weight loss...
     
  11. TEG

    TEG TMC Moderator

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    #11 TEG, Oct 24, 2011
    Last edited by a moderator: Mar 13, 2016



     
  12. TEG

    TEG TMC Moderator

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    EV noob looking to build drag car - DIY Electric Car Forums

    Most EV drag racers are using Zilla DC controllers. Production has been spotty, so if you are serious, you might want to start by getting a controller. Seems that "siamesed" twin 9" DC motors are the hot setup. Most racers seem to have some motor expert custom rebuild them for drag purposes. Various lithium packs can power it including RC car batteries, flashlight batteries, laptop batteries, etc. Just needs lots of them. A123 batteries are a good choice. Getting a good BMS to charge them happily can be a challenge. I think a lot of these vehicles tend to have an operating voltage around 350V. A serious racer would be able to push 2000amps or more.
     
  13. qwk

    qwk Model S P2681

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    I don't think that this is the case because lighter drivers have been getting better track times...




    As far as the beat just about any drag car with an electric, Good luck. You will need it along with a FAT wallet. There are dozens of STREET cars that run single digits at most all tracks. There are even more race cars.
     
  14. richkae

    richkae VIN587

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    Manzanita Micro has partnered with the creator of the Zilla to produce it again.
    Manzanita Micro
    ( If you watched Revenge of the Electric Car - you will see the Zilla in some of the shots with Gadget )
     
  15. TEG

    TEG TMC Moderator

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    Yeah - I am not sure - I was just saying it could have a software limit of how quickly it is willing to rev.
    I could imagine doing 0-60 in less than 3.5 could put it in an error state or somesuch.
    The firmware does seem to monitor a lot of things and sound an alarm if anything seems unusual.
     
  16. zack

    zack Member

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    Seems like a good month to start a project like this. Evnetics is introducing "Big Sol" or the Shiva DC motor driver which has 1 megawatt (!) capability, and Netgain is introducing the dual-comm Warp 11 HV high-powered DC motor. I just visited a forum where an EV drag builder claimed he calculated 6 to 7s quarter miles with two of each of those units in one car. How synchronistic!
     
  17. richkae

    richkae VIN587

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    Speed = Money ^ 3

    ICE cars are reaping the rewards of 100 years and 100s of billions of R&D by everyone from backyard tinkerers to giant multibillion megacorps to Formula 1 racing teams.
    EVs have a short history of DIYers and tiny companies whose shoulders to stand on. The more the better!

    There will be a tipping point in just a few years when a car enthusiast will be able to build and operate a quicker EV than ICE car for the same money. I believe that is only a matter of time. Once that happens, it is game over for the ICE and the backyard tinkerer with his gas burner will either evolve or be blown off the track.
     
  18. vfx

    vfx Well-Known Member

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    This is impossible.


    :)
     

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