Hyper 8 Pinion

[ReV:-O]

Hiya,

I've converted a second-hand Hobao Hyper 8 to brushless, but I need a pinion for the motor. Does anyone know what Mod the spur gear for the Hyper 7/8/8.5 is? It's bigger than Mod 0.8, but is it 1.0, 1.5...?

Also, to anyone who is running a brushless Hyper, what would be good gearing to get around 55-60mph? I'm not sure how many teeth the spur gear has though. How many teeth should I be looking for on the pinion, round abouts? I'm running 6s w/ the MMM 2200 combo.


Cheers for any help, and sorry for the (sort of) vague questions!

[bdebde]

It should be Mod1 probably 46t spur. 14t - 15t pinion should get ya there depending on tire size.

[ReV:-O]

I'm gonna try and break 80mph eventually. Theres a vid of an RC8 reaching 100mph, but that was with the 2650kv motor.

I just counted the spur, and its 46T. I'll try and work out the speed using the calculator, but i know it's been way off in the past

Pinion Speed
10T 39.73 mph
11T 43.70 mph
12T 47.68 mph
13T 51.65 mph
14T 55.62 mph
15T 59.60 mph
16T 63.57 mph
17T 67.54 mph
18T 71.52 mph
19T 75.49 mph
20T 79.46 mph
21T 83.43 mph
22T 87.41 mph
23T 91.38 mph
24T 95.35 mph
25T 99.33 mph

I think i'll buy a 17T pinion, seems like the best bet.