smirkracing
Well-known member
- Messages
- 150
- Reaction score
- 53
- Tekno RC's
- EB410
- EB48
- ET48
- Driving Style
- Basher
Hi All,
I am looking for some advice on how to balance my temps vs my top speed (for general purpose bashing in a park).
I am running a castle 1515 motor, 2200kv, on 4s, using a Mamba Monster X ESC. Everything on the truck is basically stock (tires are backflips LP).
Currently, I think the pinion is maybe 18t (need to check) and my top speed on short grass is about 43 mph.
I'd like to be closer to 55mph, but I think if I gear up (basic math says I'd need to go at least to a 23t pinion) a lot of other things will suffer. First, the motor runs well but I think it will run way too hot with such a large pinion. Second, I love the current power deliver - wheelies even from half throttle, excellent acceleration, and generally, great overall balance of power, speed, temps.
I just want another 10-15mph for blasting across the wide open field, but I want the normal (lower) gear ratio the rest of the time.
It occurred to me that this is basically what racers want on the infield vs the straightaways... and since I have a sensored motor+esc, maybe I should try out boost?
Would it make sense to set something up such that when I'm at wide open throttle (whatever those RPMs are) for more than say half a second, the timing ramps up by 15-20? Would that add some top speed?
I've never used these features before so appreciate you explaining this to a noob!
I am looking for some advice on how to balance my temps vs my top speed (for general purpose bashing in a park).
I am running a castle 1515 motor, 2200kv, on 4s, using a Mamba Monster X ESC. Everything on the truck is basically stock (tires are backflips LP).
Currently, I think the pinion is maybe 18t (need to check) and my top speed on short grass is about 43 mph.
I'd like to be closer to 55mph, but I think if I gear up (basic math says I'd need to go at least to a 23t pinion) a lot of other things will suffer. First, the motor runs well but I think it will run way too hot with such a large pinion. Second, I love the current power deliver - wheelies even from half throttle, excellent acceleration, and generally, great overall balance of power, speed, temps.
I just want another 10-15mph for blasting across the wide open field, but I want the normal (lower) gear ratio the rest of the time.
It occurred to me that this is basically what racers want on the infield vs the straightaways... and since I have a sensored motor+esc, maybe I should try out boost?
Would it make sense to set something up such that when I'm at wide open throttle (whatever those RPMs are) for more than say half a second, the timing ramps up by 15-20? Would that add some top speed?
I've never used these features before so appreciate you explaining this to a noob!
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