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  1. #1
    RC Racer
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    questions about pinions

    what pinions can i run so as to not over heat with 2 small or to big of a pinion??? love to hear soem feed back
    NO U CANT DRIVE MY SUMMIT!

  2. #2
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    What are you running now?
    What are you measuring temperature with?
    Whatever it is I just said... I could be wrong.

  3. #3
    RC Racer
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    now i am running a stock ken block vxl. lady at hobby shop sait stock is 26 i bought 24 and 22. i also have a kile bush vxl.
    when i had my merv i had it running 65mph all day and never over heated. but.... i cant remember what pinion and sper i was running on stock. and it was 1 2s lipo had it clocked and radared.
    NO U CANT DRIVE MY SUMMIT!

  4. #4
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    What motor ESC were you running in your MERV?


    Basically gear for heat... put what you got into it and adjust from there; there is no perfect gearing for optimum performance from person to person or terrain to terrain or even climate to climate.
    Whatever it is I just said... I could be wrong.

  5. #5
    RC Racer
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    stock in my merv different diff oil.. few little secrets big heat sinks. lol it was way to fast... different tires all alluminum everything.
    NO U CANT DRIVE MY SUMMIT!

  6. #6
    RC Turnbuckle Jr. Petertje60's Avatar
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    Considering the amount of typos, I guess 65mph is one of them.
    Nobody is born with experience.

  7. #7
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    so... it can do 50 out of the box. but 65 seems like a typo? i was running lipo.. diff sper n pinion.. and lighter parts.. i mean it got hot like over 150 all day but never broke.. netherlands people are.......
    NO U CANT DRIVE MY SUMMIT!

  8. #8
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    It cannot do 50 out of the box. A series harness and a second battery must be added at additional expense as well as a pinion change. The voltage to hit 50 also requires short runs on flat surfaces (no hills) per the instructions in the manual. Failure to follow these instructions will overheat the electronics.

    1) 2S LiPo's fully charged are 8.4 volts. Probably closer to 7 volts under load due to their small size. 50 mph voltage is 18 volts... a LOT more than the 2S you were running to hit 65.
    2) Mathematically you would need a 55 tooth pinion and a 45 tooth spur... 45 is the smallest spur I know of.
    3) Aluminum is heavier than stock parts, not lighter.
    Last edited by Jimmie Neutron; 06-07-2013 at 11:01 PM.
    Whatever it is I just said... I could be wrong.

  9. #9
    RC Turnbuckle Jr. Petertje60's Avatar
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    My Mustang only got close to 60mph with a 4420Kv motor which has pretty much more power than the stock motor. I was able to make wheelies with it. Geared 45/31 on 3S with slightly ballooning tires. Weight doesn't have an influence on top speed, only on the time you need to get there.

    Oh and "Netherlands" people are Dutch.
    Nobody is born with experience.

  10. #10
    RC Racer
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    ok so lets just say i am wrong.... and it was fast. good?
    NO U CANT DRIVE MY SUMMIT!

  11. #11
    RC Turnbuckle Jr. Petertje60's Avatar
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    All good. My feedback could have been nicer.

    Oh and yes, it is freakin fast!
    Nobody is born with experience.

  12. #12
    RC Racer
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    so today on 2s 2200 50c my ken block is just as fast as a 1/8th scale buggy running 4s 5000 20c same speed same launch... quite happy with it. and stock gearing. my cuz was like whatttttttttt. that things crazzyyyy. its stock? with just a lipo and some slash tires?? yup! just running one lipo also..
    NO U CANT DRIVE MY SUMMIT!

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