- #1
JOHN daruwala
- 5
- 0
so i am planning to build a go kart
i have purchased the engine with following specs:
power =8.2 KW (11.1 Ps) @8000 rpm
torque= 11N-m @5000 rpm
Calculations:
rolling force=221 N
drag force=26 N
total tractive force=221+26=247N
torque at wheel= 247 X 0.1 ( 20 cm wheels)
= 24.7
then i calculated power =Ft X vmax
=247 X 23/1000 =5.68 KW (23m/s is limit at my track)
the i calculated wheel rpm=2100 by power rpm torque relation
found out the gear ratio =engine rpm/wheel rpm
=3.7
14X3.7=axle teeth
52=axle teeth i am at planning stage i want to know if iam right uptill now or wrong
all so want to know how to calculate pitch of teeth if i want to cast the sprocket
i have purchased the engine with following specs:
power =8.2 KW (11.1 Ps) @8000 rpm
torque= 11N-m @5000 rpm
Calculations:
rolling force=221 N
drag force=26 N
total tractive force=221+26=247N
torque at wheel= 247 X 0.1 ( 20 cm wheels)
= 24.7
then i calculated power =Ft X vmax
=247 X 23/1000 =5.68 KW (23m/s is limit at my track)
the i calculated wheel rpm=2100 by power rpm torque relation
found out the gear ratio =engine rpm/wheel rpm
=3.7
14X3.7=axle teeth
52=axle teeth i am at planning stage i want to know if iam right uptill now or wrong
all so want to know how to calculate pitch of teeth if i want to cast the sprocket
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