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gear ratio

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raunak View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote raunak Quote  Post ReplyReply Direct Link To This Post Topic: gear ratio
    Posted: Apr/15/2017 at 1:28pm
Gear ratio of our car is such that it achieves the top speed of 60kmph but in reality, we are only able to do 50kmph, what are the probable causes for that?
(we checked our max engine rpm it came out to be 3800)
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RLM View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RLM Quote  Post ReplyReply Direct Link To This Post Posted: Apr/15/2017 at 2:22pm
drivetrain inefficiencies, air resistance, 
McMaster Baja Racing (09-Dec 2015)
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raunak View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote raunak Quote  Post ReplyReply Direct Link To This Post Posted: Apr/16/2017 at 7:47am
what kind of inefficiencies would have led to this much reduction in top speed?Aerodynamic drag was taken into account while deciding gear ratio.

(we use self-manufactured single speed gearbox coupled with gaged GX9 cvt)
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Double Secret Probation
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tech Star Quote  Post ReplyReply Direct Link To This Post Posted: Apr/16/2017 at 11:52am
this can occur due to energy losse ,such as in bearing .
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Adam_Clark Quote  Post ReplyReply Direct Link To This Post Posted: Jun/14/2017 at 2:21pm
Apply what you've learned in class and try thinking like an engineer. Don't ask someone else to solve the problem for you.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AlexM Quote  Post ReplyReply Direct Link To This Post Posted: Jun/14/2017 at 4:27pm
Do you know that you're getting a full shift from your CVT?
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