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Group c

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Posts posted by Group c

  12. Posted

    41 minutes ago, El Dougo said:

    @Group c  

    I have Mamba X and it's been a while since I used it but I could have sworn that the data logging works. If anyone is ESC shopping Hobbywing over Castle every time!

    The Go Pro will be the difference but you would be surprised as the 2s pack I was running weighs 330g (8400Mah 120c). In theory my battery can deliver just over a 1000 amps v your 100 to 130 at best.

    I do realise that there is lots of fake news from battery manufactures and I doubt that the tabs on mine can deliver 1000amps but without sugar coating it your battery is clearly inadequate, get shopping :) 

    The data logging will work if you connect to a pc but I’m using the new b link to iPhone. 

    Im going to try a smaller wing then the small wing plus 0 toe fist. Also going to run my 2s 4000mah 40c and my 3s and see what happens. 

    Then new battery time! 

  14. Posted

    @El Dougo on your ff03 run could you share what your camber and toe was please. Also do you know how much your car weight is fully loaded? 

    I think my run of 77mph was with 0 toe since then I’ve gone back to stock for  stability and now seem to be hitting a wall at 73mph. I’ve changed a few things since going back to stock toe. 

     Ceramic bearings / cut aero out the back / better esc / a little hotter motor. 

    I have nearly everything the same as you other then I’m using 4.5t motor with 3s and you have 3.5t with 2s. So in  theory I shouldn’t be that far from you  I’m think to toe and my body must be holding me back  

     

  15. Posted

    Ok guys I need some help again. 
    So I’ve upgraded to the castle monster x and I seem to have some sort of range issues. 
    Car runs up fine and then when I slow down and turn to make my run car won’t move until I get closer. 
    It does this at a distance but I can drive past that distance slow down then nothing so it seems that all the time I’m on throttle it’s ok but drive it away from me and get off the throttle it stops. 
    I’ve moved all wires away from each other but that did nothing. 

    Spektrum dx5c 

    spektrum sr415

    castle monster mamba x


    Any help on this would be greatly appreciate

  16. Posted

    1 hour ago, Wooders28 said:

    I think that's a major part of it, mine gave up the ghost as the motor let go, shorted , which took the esc out, but 5700kv on 5s I knew I was pushing it, even with castles 100k rpm limit. (Are there any motors with a higher threshold?) 

    So if my understanding of kv is correct (please tell me if I’m wrong here) is that kv is rpm per volt so 5700 x 18.5v =105.450 rpm and that’s not even at full charge. So you are over the limit.

    Obviously taking an unknown amount of rpm off for mechanical loss.

  19. Posted

    7 minutes ago, OCD said:

    Then why is it that we don't see any precautions taken to prevent injury to anyone's person and property who happen to be using the street or sidewalk as it's intended? Street race courses are CLOSED COURSES for a reason. And I guarantee that the local rules-of the road would not permit *anything* to move at 100+mph without notifying the unsuspecting public first. How are people that are camping and having a picnic "unsuspecting" public? Are you referring people that are there for a race on a sanctioned road course?

    It goes without saying that if my car were parked on that street, you'd definitely get an earful from me.

    Now get off my lawn. B)

    For a guy that doesn’t want to debate you sure have a lot to say. 

    I was agreeing with you in the first place 

    • Haha 1

  20. Posted

    18 minutes ago, OCD said:

     

    This is the most dangerous and irresponsible video I've ever seen on this forum. 😕

    Yes it was dangerous but all types of motor sport are. Atleast the videos will show everyone watching them that are going to try speed runs to have people and property well out the way. 

    I know for sure It’s made me think about the people who watch my runs. 

    And I bet Stewart will to after that. 

    • Like 1
    • Sad 1

  21. Posted

    6 minutes ago, El Dougo said:

    The more FF03 action the better :)   I've just done a complete rebuild on mine but not setup for speed running, well until someone beats it..... It would be nice to hit over 90 on 2s.

    With the magic smoke either could let it out but the motor would have given up quickly if it couldn't handle the voltage. The motors seem to be relatively random and very few of the racing grade ones advertise that can handle over 2s but most do. I suspect that the sensor boards are the limitation but I've not lost must sleep over it, well apart from the fairly significant Speed Passion motor and Castle Cremations ESC fire (bench testing the motor on 3s at my friends house, he wasn't happy).

    It's the ESC that deserves a medal as your pretty much running worst case high Kv, high voltage and a low final drive ratio. Hobbywing specify max 2S -8.5T, 3S -13.5T and I'm sure that somewhere in the small print will be a do not about running a low FDR. Has the car been cutting out form overheating? As your sensored the ESC should have a thermal a cut out for both the motor and the ESC but in general a fan is always a good idea and ideally you don't want the motor sustaining over 80 degrees c.

    I'm very tempted to get myself a fancy GPS GoPro, do you know if the speedometer graphic updates for over 90Mph?

    Agree on the more ff03 action 👍🏻

    My esc is not sensored and hasn’t cut out once it all just seemed very happy. But I guess time will tell. 

    Yes the GoPro will update the graphic to what ever speed you achieve. I’ve had it filming in my car on a trackday over 100mph 

  22. Posted

    1 hour ago, El Dougo said:

    Great run dude!

    I'm amazed that the ESC hasn't let the magic smoke out though and also glad that your carrying that heavy camera.  If you did not know my run was on 2s so maybe that evens it out :lol:

    Thanks matey 

    yes I do realise your run was on 2s. 

    Your run is what  inspired me! So another thanks is due. 

    ive also thought about the heavy GoPro and may well change that in the future. 

    My esc is rated for 3s but I think the motor is not @El Dougo do you think that would make the esc smoke or am I only likely to blow the motor?         The motor has it own fan and seemed to not get too hot although I don’t have a heat gun. 

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