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Old 01-05-2012, 12:35 PM   #1
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Default HPI E10

I'm new to the r/c world but just bought and hpi E10 monster energy drift which I have just made a few changes to. Replaced 27t motor with firebolt 15t. 5000mah 6cell batt., and ditched the drift tires for sport tires. also replaced rims and bodyshell to F150 flareside. I want speed more than anything just to bash at home but on a really tight budget. My question is with the firebolt 15t which pinion gear would be optimal as now it has a 48p 22t with 65t spur gear. Lower turns is supposed to be faster but when I still had the 27t motor I could run a 33t pinion and the top speed was alot faster than it is now. Any recommendations? And don't say brushless as it isn't in the budget.
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Old 01-05-2012, 12:50 PM   #2
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Those fireball mod motors are easily to overheat, I never think they were good quality but too bad there aren't too many mod motors (brushed) available. You dropped from 33 to 22 on the pinion gear size, that's a huge change. If your car tops out right away, then it's undergeared. Try 26 - 28 tooth for pinion gears range.
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Old 01-05-2012, 12:54 PM   #3
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Furthermore, Tamiya still make the 23 turn spec racing motors (RZ, TZ, RR). They are better choices than the cheap quality venom fireball motors.
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Old 01-05-2012, 12:57 PM   #4
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22t is around the limit with this motor i think considering it tends to overheat and shutdown after longer runs. Will dropping to a 20 or 21 help by relieving some of the load and increase speed or should I go with say a 20t motor and gear bigger?
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Old 01-05-2012, 12:59 PM   #5
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I have an HPI firebolt 15t not a venom fireball.
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Old 01-05-2012, 12:59 PM   #6
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you could of melted plastic ball bearings......e10 first upgrade should be ball bearings
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Old 01-05-2012, 01:03 PM   #7
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Bearings are on my list of upgrades. I am also considering going lipo, but the esc program instructions are hard to follow and dont understand them.
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Old 01-05-2012, 01:10 PM   #8
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Anyone know how to program the HPI sc-15wp esc for lipo battery???
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Old 01-05-2012, 01:15 PM   #9
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also are there any brushless systems out there that are fast and for a budget that i could squeeze into this car? i will be happy when i can break 50+ with this car.
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Old 01-05-2012, 02:40 PM   #10
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Would the Associated 540R 6100kV Motor and esc get me close to 50+ on nimh battery or would lipo be required?
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