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  1. #1
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    New guy pinion question

    I was at the understanding that a larger pinion gear made the car have a higher top speed buy with more strain on the motor. If so why the "high speed gearing for the merv a much smaller pinion? Any help would be great. thanks

  2. #2
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    To lower the stress and lessen the heat on the system.
    Even with the "speed" pinion the manual states that running with a higher voltage, either 2 stock in series or a 3S LiPo, should only be done on flat, smooth surfaces for short periods of time.
    Whatever it is I just said... I could be wrong.

  3. #3
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    So if I wanted to do a stupid fast speed run on 3s I can put the original pinion in and run it for a very short time? I would only do this once so satisfy my curiosity.

  4. #4
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    As long as you have a temp gun, go for it.
    This will allow you to monitor your temps so you can stop BEFORE you fry your electronics.
    Whatever it is I just said... I could be wrong.

  5. #5
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    +1 to what Jimmy said. 180* F is the danger zone, personally I like to stay below 150.
    Dye-no-mite Pow-er Go Fast, Wirrrrr Screeeech BOOM

  6. #6
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    Quote Originally Posted by TheMajekalBum View Post
    +1 to what Jimmy said. 180* F is the danger zone, personally I like to stay below 150.
    I'm sort of the same way, I try to keep mine below 140-ish degrees.
    ***You Build It ...I'll Jump It!!!*** OS .18 TZ; Trinity Pipe; HCR Titanium Skid Plates & Bumpers; Futaba S9450 Throttle Servo; Airtronics 94358Z Steering Servo; RPM A-arms & Knuckles; FOC; Lunsford Titanium Hinge Pins,Turnbuckles, Push Rods & Rocker Posts; New Era Roll Bar & Engine Mount; Proline Mashers on Velocity Rims.

  7. #7
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    Thanks guys!!! like I said ill probably only do it once to satisfy my curiosity as to how fast I can push it. 3s traxxas lipo on pro-line 3.6" tires on 2.2" desperados. Should be cool!

  8. #8
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
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    I must love living on the edge. lol
    I push mine to 180F and consider it a sweet spot.
    200F is the number you do NOT want to hit.
    Whatever it is I just said... I could be wrong.

  9. #9
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    Quote Originally Posted by Jimmie Neutron View Post
    I must love living on the edge. lol
    I push mine to 180F and consider it a sweet spot.
    200F is the number you do NOT want to hit.
    I guess you do, I just like having mine geared and running cool so that no matter what I'm doing I don't have to worry about it getting hot on me, I still check the temps quite often though.
    ***You Build It ...I'll Jump It!!!*** OS .18 TZ; Trinity Pipe; HCR Titanium Skid Plates & Bumpers; Futaba S9450 Throttle Servo; Airtronics 94358Z Steering Servo; RPM A-arms & Knuckles; FOC; Lunsford Titanium Hinge Pins,Turnbuckles, Push Rods & Rocker Posts; New Era Roll Bar & Engine Mount; Proline Mashers on Velocity Rims.

  10. #10
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    I always heard that 160*f was the sweet spot and 180*f was when the magnets start to demagnetize. Granted I'm sure higher quality systems will take a bit more. I just like having some "cushion room" just in case.
    Dye-no-mite Pow-er Go Fast, Wirrrrr Screeeech BOOM

  11. #11
    RC Turnbuckle Jr.
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    neu motors can take 300 degrees for some time but i have seen motors overheat with 180. remember if you take a reading of 180 it was probably 200 at it's hottest

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